diff --git a/misc/BreCalApi.cs b/misc/BreCalApi.cs
index c16d7a9..3a006be 100644
--- a/misc/BreCalApi.cs
+++ b/misc/BreCalApi.cs
@@ -1,7 +1,7 @@
 
 //----------------------
 // <auto-generated>
-//     Generated REST API Client Code Generator v1.7.17.0 on 17.08.2023 10:11:31
+//     Generated REST API Client Code Generator v1.7.17.0 on 18.08.2023 15:15:15
 //     Using the tool OpenAPI Generator v6.6.0
 // </auto-generated>
 //----------------------
@@ -280,6 +280,25 @@ namespace BreCalClient.misc.Api
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <returns>ApiResponse of Object(void)</returns>
         ApiResponse<Object> TimesPutWithHttpInfo(Times times, int operationIndex = 0);
+        /// <summary>
+        /// Update user details (first/last name, phone, password)
+        /// </summary>
+        /// <exception cref="BreCalClient.misc.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="userDetails">User details</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void UserPut(UserDetails userDetails, int operationIndex = 0);
+        /// <summary>
+        /// Update user details (first/last name, phone, password)
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="BreCalClient.misc.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="userDetails">User details</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> UserPutWithHttpInfo(UserDetails userDetails, int operationIndex = 0);
         #endregion Synchronous Operations
     }
     /// <summary>
@@ -572,6 +591,30 @@ namespace BreCalClient.misc.Api
         /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
         /// <returns>Task of ApiResponse</returns>
         System.Threading.Tasks.Task<ApiResponse<Object>> TimesPutWithHttpInfoAsync(Times times, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Update user details (first/last name, phone, password)
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="BreCalClient.misc.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="userDetails">User details</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task UserPutAsync(UserDetails userDetails, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Update user details (first/last name, phone, password)
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="BreCalClient.misc.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="userDetails">User details</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> UserPutWithHttpInfoAsync(UserDetails userDetails, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
         #endregion Asynchronous Operations
     }
     /// <summary>
@@ -2143,6 +2186,134 @@ namespace BreCalClient.misc.Api
             }
             return localVarResponse;
         }
+        /// <summary>
+        /// Update user details (first/last name, phone, password) 
+        /// </summary>
+        /// <exception cref="BreCalClient.misc.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="userDetails">User details</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void UserPut(UserDetails userDetails, int operationIndex = 0)
+        {
+            UserPutWithHttpInfo(userDetails);
+        }
+        /// <summary>
+        /// Update user details (first/last name, phone, password) 
+        /// </summary>
+        /// <exception cref="BreCalClient.misc.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="userDetails">User details</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public BreCalClient.misc.Client.ApiResponse<Object> UserPutWithHttpInfo(UserDetails userDetails, int operationIndex = 0)
+        {
+            // verify the required parameter 'userDetails' is set
+            if (userDetails == null)
+            {
+                throw new BreCalClient.misc.Client.ApiException(400, "Missing required parameter 'userDetails' when calling DefaultApi->UserPut");
+            }
+            BreCalClient.misc.Client.RequestOptions localVarRequestOptions = new BreCalClient.misc.Client.RequestOptions();
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+            var localVarContentType = BreCalClient.misc.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+            var localVarAccept = BreCalClient.misc.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+            localVarRequestOptions.Data = userDetails;
+            localVarRequestOptions.Operation = "DefaultApi.UserPut";
+            localVarRequestOptions.OperationIndex = operationIndex;
+            // authentication (ApiKey) required
+            if (!string.IsNullOrEmpty(this.Configuration.GetApiKeyWithPrefix("Authorization")))
+            {
+                localVarRequestOptions.HeaderParameters.Add("Authorization", this.Configuration.GetApiKeyWithPrefix("Authorization"));
+            }
+            // make the HTTP request
+            var localVarResponse = this.Client.Put<Object>("/user", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("UserPut", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+            return localVarResponse;
+        }
+        /// <summary>
+        /// Update user details (first/last name, phone, password) 
+        /// </summary>
+        /// <exception cref="BreCalClient.misc.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="userDetails">User details</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task UserPutAsync(UserDetails userDetails, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await UserPutWithHttpInfoAsync(userDetails, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+        /// <summary>
+        /// Update user details (first/last name, phone, password) 
+        /// </summary>
+        /// <exception cref="BreCalClient.misc.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="userDetails">User details</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<BreCalClient.misc.Client.ApiResponse<Object>> UserPutWithHttpInfoAsync(UserDetails userDetails, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'userDetails' is set
+            if (userDetails == null)
+            {
+                throw new BreCalClient.misc.Client.ApiException(400, "Missing required parameter 'userDetails' when calling DefaultApi->UserPut");
+            }
+            BreCalClient.misc.Client.RequestOptions localVarRequestOptions = new BreCalClient.misc.Client.RequestOptions();
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+            var localVarContentType = BreCalClient.misc.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+            var localVarAccept = BreCalClient.misc.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+            localVarRequestOptions.Data = userDetails;
+            localVarRequestOptions.Operation = "DefaultApi.UserPut";
+            localVarRequestOptions.OperationIndex = operationIndex;
+            // authentication (ApiKey) required
+            if (!string.IsNullOrEmpty(this.Configuration.GetApiKeyWithPrefix("Authorization")))
+            {
+                localVarRequestOptions.HeaderParameters.Add("Authorization", this.Configuration.GetApiKeyWithPrefix("Authorization"));
+            }
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PutAsync<Object>("/user", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("UserPut", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+            return localVarResponse;
+        }
     }
 }
 
@@ -7044,3 +7215,189 @@ namespace BreCalClient.misc.Model
     }
 }
 
+/*
+ * Bremen calling API
+ *
+ * Administer DEBRE ship calls, times and notifications
+ *
+ * The version of the OpenAPI document: 0.3.0
+ * Contact: info@textbausteine.net
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+namespace BreCalClient.misc.Model
+{
+    /// <summary>
+    /// fields that a user may change
+    /// </summary>
+    [DataContract(Name = "user_details")]
+    public partial class UserDetails : IEquatable<UserDetails>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="UserDetails" /> class.
+        /// </summary>
+        /// <param name="id">id.</param>
+        /// <param name="oldPassword">oldPassword.</param>
+        /// <param name="newPassword">newPassword.</param>
+        /// <param name="firstName">firstName.</param>
+        /// <param name="lastName">lastName.</param>
+        /// <param name="userPhone">userPhone.</param>
+        public UserDetails(int id = default(int), string oldPassword = default(string), string newPassword = default(string), string firstName = default(string), string lastName = default(string), string userPhone = default(string))
+        {
+            this.Id = id;
+            this.OldPassword = oldPassword;
+            this.NewPassword = newPassword;
+            this.FirstName = firstName;
+            this.LastName = lastName;
+            this.UserPhone = userPhone;
+        }
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name = "id", EmitDefaultValue = true)]
+        public int Id { get; set; }
+        /// <summary>
+        /// Gets or Sets OldPassword
+        /// </summary>
+        [DataMember(Name = "old_password", EmitDefaultValue = true)]
+        public string OldPassword { get; set; }
+        /// <summary>
+        /// Gets or Sets NewPassword
+        /// </summary>
+        [DataMember(Name = "new_password", EmitDefaultValue = true)]
+        public string NewPassword { get; set; }
+        /// <summary>
+        /// Gets or Sets FirstName
+        /// </summary>
+        [DataMember(Name = "first_name", EmitDefaultValue = true)]
+        public string FirstName { get; set; }
+        /// <summary>
+        /// Gets or Sets LastName
+        /// </summary>
+        [DataMember(Name = "last_name", EmitDefaultValue = true)]
+        public string LastName { get; set; }
+        /// <summary>
+        /// Gets or Sets UserPhone
+        /// </summary>
+        [DataMember(Name = "user_phone", EmitDefaultValue = true)]
+        public string UserPhone { get; set; }
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class UserDetails {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  OldPassword: ").Append(OldPassword).Append("\n");
+            sb.Append("  NewPassword: ").Append(NewPassword).Append("\n");
+            sb.Append("  FirstName: ").Append(FirstName).Append("\n");
+            sb.Append("  LastName: ").Append(LastName).Append("\n");
+            sb.Append("  UserPhone: ").Append(UserPhone).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return this.Equals(input as UserDetails);
+        }
+        /// <summary>
+        /// Returns true if UserDetails instances are equal
+        /// </summary>
+        /// <param name="input">Instance of UserDetails to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(UserDetails input)
+        {
+            if (input == null)
+            {
+                return false;
+            }
+            return 
+                (
+                    this.Id == input.Id ||
+                    this.Id.Equals(input.Id)
+                ) && 
+                (
+                    this.OldPassword == input.OldPassword ||
+                    (this.OldPassword != null &&
+                    this.OldPassword.Equals(input.OldPassword))
+                ) && 
+                (
+                    this.NewPassword == input.NewPassword ||
+                    (this.NewPassword != null &&
+                    this.NewPassword.Equals(input.NewPassword))
+                ) && 
+                (
+                    this.FirstName == input.FirstName ||
+                    (this.FirstName != null &&
+                    this.FirstName.Equals(input.FirstName))
+                ) && 
+                (
+                    this.LastName == input.LastName ||
+                    (this.LastName != null &&
+                    this.LastName.Equals(input.LastName))
+                ) && 
+                (
+                    this.UserPhone == input.UserPhone ||
+                    (this.UserPhone != null &&
+                    this.UserPhone.Equals(input.UserPhone))
+                );
+        }
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.Id.GetHashCode();
+                if (this.OldPassword != null)
+                {
+                    hashCode = (hashCode * 59) + this.OldPassword.GetHashCode();
+                }
+                if (this.NewPassword != null)
+                {
+                    hashCode = (hashCode * 59) + this.NewPassword.GetHashCode();
+                }
+                if (this.FirstName != null)
+                {
+                    hashCode = (hashCode * 59) + this.FirstName.GetHashCode();
+                }
+                if (this.LastName != null)
+                {
+                    hashCode = (hashCode * 59) + this.LastName.GetHashCode();
+                }
+                if (this.UserPhone != null)
+                {
+                    hashCode = (hashCode * 59) + this.UserPhone.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+}
+
diff --git a/misc/BreCalApi.yaml b/misc/BreCalApi.yaml
index cc73737..0fa15ff 100644
--- a/misc/BreCalApi.yaml
+++ b/misc/BreCalApi.yaml
@@ -1,690 +1,732 @@
-openapi: '3.0.0'
+openapi: "3.0.0"
 info:
-  version: '0.3.0'
-  title: 'Bremen calling API'
-  description: Administer DEBRE ship calls, times and notifications
-  termsOfService: "https://www.bsmd.de/" # url to terms page
-  contact:
-    name: "Bremen calling API"
-    url: "https://www.textbausteine.net"
-    email: "info@textbausteine.net"
-  license:
-    name: "Use at your own risk"
-    url: "https://www.bsmd.de/license"
+    version: "0.3.0"
+    title: "Bremen calling API"
+    description: Administer DEBRE ship calls, times and notifications
+    termsOfService: "https://www.bsmd.de/" # url to terms page
+    contact:
+        name: "Bremen calling API"
+        url: "https://www.textbausteine.net"
+        email: "info@textbausteine.net"
+    license:
+        name: "Use at your own risk"
+        url: "https://www.bsmd.de/license"
 
 servers:
-  # tutorial: https://idratherbewriting.com/learnapidoc/pubapis_openapi_step3_servers_object.html
-  - url : "https://brecal.bsmd-emswe.eu/"
-    description: "Test server hosted on vcup"
+    # tutorial: https://idratherbewriting.com/learnapidoc/pubapis_openapi_step3_servers_object.html
+    - url: "https://brecal.bsmd-emswe.eu/"
+      description: "Test server hosted on vcup"
 
 paths:
-  # tutorial: https://idratherbewriting.com/learnapidoc/pubapis_openapi_step4_paths_object.html
-  /login:
-    post:
-      summary: Returns a JWT session token and user data if successful
-      requestBody:
-        description: Login credentials
-        required: true
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/credentials'
-      responses:
-        200:
-          description: Successful response
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/login_result'
-        400:
-          $ref: '#/components/responses/400'
-        403:
-          $ref: '#/components/responses/403'
-        500:
-          $ref: '#/components/responses/500'
-        503:
-          $ref: '#/components/responses/503'
+    # tutorial: https://idratherbewriting.com/learnapidoc/pubapis_openapi_step4_paths_object.html
+    /login:
+        post:
+            summary: Returns a JWT session token and user data if successful
+            requestBody:
+                description: Login credentials
+                required: true
+                content:
+                    application/json:
+                        schema:
+                            $ref: "#/components/schemas/credentials"
+            responses:
+                200:
+                    description: Successful response
+                    content:
+                        application/json:
+                            schema:
+                                $ref: "#/components/schemas/login_result"
+                400:
+                    $ref: "#/components/responses/400"
+                403:
+                    $ref: "#/components/responses/403"
+                500:
+                    $ref: "#/components/responses/500"
+                503:
+                    $ref: "#/components/responses/503"
 
-  /shipcalls:
-    get:
-      summary: Gets a list of ship calls
-      #parameters:
-      #  - name: participant_id
-      #    in: query
-      #    required: true
-      #    description: "**Id of participant**. *Example: 2*. Id of participant entity requesting ship calls"
-      #    schema:
-      #      type: integer
-      responses:
-        200:
-          description: ship call list
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/shipcalls'
-        400:
-          $ref: '#/components/responses/400'
-        401:
-          $ref: '#/components/responses/401'
-        500:
-          $ref: '#/components/responses/500'
-        503:
-          $ref: '#/components/responses/503'
-    post:
-      summary: Create a new ship call
-      requestBody:
-        description: Creates a new ship call. **Do not** provide id parameter.
-        required: true
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/shipcall'
-      responses:
-        400:
-          $ref: '#/components/responses/400'
-        401:
-          $ref: '#/components/responses/401'
-        500:
-          $ref: '#/components/responses/500'
-        503:
-          $ref: '#/components/responses/503'
+    /user:
+        put:
+            summary: Update user details (first/last name, phone, password)
+            requestBody:
+                description: User details
+                required: true
+                content:
+                    application/json:
+                        schema:
+                            $ref: "#/components/schemas/user_details"
+            responses:
+                400:
+                    $ref: "#/components/responses/400"
+                401:
+                    $ref: "#/components/responses/401"
+                500:
+                    $ref: "#/components/responses/500"
+                503:
+                    $ref: "#/components/responses/503"
 
-    put:
-      summary: Updates a ship call
-      requestBody:
-        description: Creates a new ship call. The id parameter is **required**.
-        required: true
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/shipcall'
-      responses:
-        400:
-          $ref: '#/components/responses/400'
-        401:
-          $ref: '#/components/responses/401'
-        500:
-          $ref: '#/components/responses/500'
-        503:
-          $ref: '#/components/responses/503'
+    /shipcalls:
+        get:
+            summary: Gets a list of ship calls
+            #parameters:
+            #  - name: participant_id
+            #    in: query
+            #    required: true
+            #    description: "**Id of participant**. *Example: 2*. Id of participant entity requesting ship calls"
+            #    schema:
+            #      type: integer
+            responses:
+                200:
+                    description: ship call list
+                    content:
+                        application/json:
+                            schema:
+                                $ref: "#/components/schemas/shipcalls"
+                400:
+                    $ref: "#/components/responses/400"
+                401:
+                    $ref: "#/components/responses/401"
+                500:
+                    $ref: "#/components/responses/500"
+                503:
+                    $ref: "#/components/responses/503"
+        post:
+            summary: Create a new ship call
+            requestBody:
+                description: Creates a new ship call. **Do not** provide id parameter.
+                required: true
+                content:
+                    application/json:
+                        schema:
+                            $ref: "#/components/schemas/shipcall"
+            responses:
+                400:
+                    $ref: "#/components/responses/400"
+                401:
+                    $ref: "#/components/responses/401"
+                500:
+                    $ref: "#/components/responses/500"
+                503:
+                    $ref: "#/components/responses/503"
 
-  /ships:
-    get:
-      summary: gets a list of registered shipcalls
-      responses:
-        200:
-          description: list of ships
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/ship_list'
-        400:
-          $ref: '#/components/responses/400'
-        401:
-          $ref: '#/components/responses/401'
-        500:
-          $ref: '#/components/responses/500'
-        503:
-          $ref: '#/components/responses/503'
+        put:
+            summary: Updates a ship call
+            requestBody:
+                description: Creates a new ship call. The id parameter is **required**.
+                required: true
+                content:
+                    application/json:
+                        schema:
+                            $ref: "#/components/schemas/shipcall"
+            responses:
+                400:
+                    $ref: "#/components/responses/400"
+                401:
+                    $ref: "#/components/responses/401"
+                500:
+                    $ref: "#/components/responses/500"
+                503:
+                    $ref: "#/components/responses/503"
 
-  /participants:
-    get:
-      summary: gets a particular participant entry corresponding to user id
-      parameters:
-        - name: user_id
-          in: query
-          required: false
-          description: "**Id of user**. *Example: 2*. User id returned by verify call."
-          schema:
-            type: integer
-      responses:
-        200:
-          description: ship call list
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/participant_list'
-        400:
-          $ref: '#/components/responses/400'
-        404:
-          $ref: '#/components/responses/404'
-        401:
-          $ref: '#/components/responses/401'
-        500:
-          $ref: '#/components/responses/500'
-        503:
-          $ref: '#/components/responses/503'
+    /ships:
+        get:
+            summary: gets a list of registered shipcalls
+            responses:
+                200:
+                    description: list of ships
+                    content:
+                        application/json:
+                            schema:
+                                $ref: "#/components/schemas/ship_list"
+                400:
+                    $ref: "#/components/responses/400"
+                401:
+                    $ref: "#/components/responses/401"
+                500:
+                    $ref: "#/components/responses/500"
+                503:
+                    $ref: "#/components/responses/503"
 
-  /times:
-    get:
-      summary: Get all recorded times for a a ship call
-      parameters:
-        - name: shipcall_id
-          in: query
-          description: "**Id**. *Example: 42*. Id of referenced ship call."
-          schema:
-            type: integer
-      responses:
-        200:
-          description: list of recorded times
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/times_list'
-        400:
-          $ref: '#/components/responses/400'
-        401:
-          $ref: '#/components/responses/401'
-        500:
-          $ref: '#/components/responses/500'
-        503:
-          $ref: '#/components/responses/503'
+    /participants:
+        get:
+            summary: gets a particular participant entry corresponding to user id
+            parameters:
+                - name: user_id
+                  in: query
+                  required: false
+                  description: "**Id of user**. *Example: 2*. User id returned by verify call."
+                  schema:
+                      type: integer
+            responses:
+                200:
+                    description: ship call list
+                    content:
+                        application/json:
+                            schema:
+                                $ref: "#/components/schemas/participant_list"
+                400:
+                    $ref: "#/components/responses/400"
+                404:
+                    $ref: "#/components/responses/404"
+                401:
+                    $ref: "#/components/responses/401"
+                500:
+                    $ref: "#/components/responses/500"
+                503:
+                    $ref: "#/components/responses/503"
 
-    post:
-      summary: Create a new times entry for a ship call
-      requestBody:
-        description: Times entry that will be added to the ship call. **Do not** provide id parameter.
-        required: true
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/times'
-      responses:
-        400:
-          $ref: '#/components/responses/400'
-        401:
-          $ref: '#/components/responses/401'
-        500:
-          $ref: '#/components/responses/500'
-        503:
-          $ref: '#/components/responses/503'
+    /times:
+        get:
+            summary: Get all recorded times for a a ship call
+            parameters:
+                - name: shipcall_id
+                  in: query
+                  description: "**Id**. *Example: 42*. Id of referenced ship call."
+                  schema:
+                      type: integer
+            responses:
+                200:
+                    description: list of recorded times
+                    content:
+                        application/json:
+                            schema:
+                                $ref: "#/components/schemas/times_list"
+                400:
+                    $ref: "#/components/responses/400"
+                401:
+                    $ref: "#/components/responses/401"
+                500:
+                    $ref: "#/components/responses/500"
+                503:
+                    $ref: "#/components/responses/503"
 
-    put:
-      summary: Update a times entry for a ship call
-      requestBody:
-        description: Times entry that will be added to the ship call. The id parameter is **required**.
-        required: true
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/times'
-      responses:
-        400:
-          $ref: '#/components/responses/400'
-        401:
-          $ref: '#/components/responses/401'
-        500:
-          $ref: '#/components/responses/500'
-        503:
-          $ref: '#/components/responses/503'
+        post:
+            summary: Create a new times entry for a ship call
+            requestBody:
+                description: Times entry that will be added to the ship call. **Do not** provide id parameter.
+                required: true
+                content:
+                    application/json:
+                        schema:
+                            $ref: "#/components/schemas/times"
+            responses:
+                400:
+                    $ref: "#/components/responses/400"
+                401:
+                    $ref: "#/components/responses/401"
+                500:
+                    $ref: "#/components/responses/500"
+                503:
+                    $ref: "#/components/responses/503"
 
-    delete:
-      summary: Delete a times entry for a ship call.
-      parameters:
-        - name: id
-          in: query
-          required: true
-          schema:
-            $ref: '#/components/schemas/timesId'
-      responses:
-        400:
-          $ref: '#/components/responses/400'
-        401:
-          $ref: '#/components/responses/401'
-        500:
-          $ref: '#/components/responses/500'
-        503:
-          $ref: '#/components/responses/503'
+        put:
+            summary: Update a times entry for a ship call
+            requestBody:
+                description: Times entry that will be added to the ship call. The id parameter is **required**.
+                required: true
+                content:
+                    application/json:
+                        schema:
+                            $ref: "#/components/schemas/times"
+            responses:
+                400:
+                    $ref: "#/components/responses/400"
+                401:
+                    $ref: "#/components/responses/401"
+                500:
+                    $ref: "#/components/responses/500"
+                503:
+                    $ref: "#/components/responses/503"
 
-  /notifications:
-    get:
-      summary: Gets a list of notifications pursuant to a specified participant and ship call
-      parameters:
-        - name: participant_id
-          in: query
-          required: true
-          description: "**Id of participant**. *Example: 2*. Id returned through loading of participant"
-          schema:
-            type: integer
-        - name: shipcall_id
-          in: query
-          required: true
-          description: "**Id of ship call**. *Example: 52*. Id given in ship call list"
-          schema:
-            $ref: '#/components/schemas/shipcallId'
-      responses:
-        200:
-          description: notification list
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/notification'
-        400:
-          $ref: '#/components/responses/400'
-        401:
-          $ref: '#/components/responses/401'
-        500:
-          $ref: '#/components/responses/500'
-        503:
-          $ref: '#/components/responses/503'
-  /berths:
-    get:
-      summary: Gets a list of all berths registered
-      responses:
-        200:
-          description: list of berths
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/berth_list'
-        400:
-          $ref: '#/components/responses/400'
-        401:
-          $ref: '#/components/responses/401'
-        500:
-          $ref: '#/components/responses/500'
-        503:
-          $ref: '#/components/responses/503'
+        delete:
+            summary: Delete a times entry for a ship call.
+            parameters:
+                - name: id
+                  in: query
+                  required: true
+                  schema:
+                      $ref: "#/components/schemas/timesId"
+            responses:
+                400:
+                    $ref: "#/components/responses/400"
+                401:
+                    $ref: "#/components/responses/401"
+                500:
+                    $ref: "#/components/responses/500"
+                503:
+                    $ref: "#/components/responses/503"
+
+    /notifications:
+        get:
+            summary: Gets a list of notifications pursuant to a specified participant and ship call
+            parameters:
+                - name: participant_id
+                  in: query
+                  required: true
+                  description: "**Id of participant**. *Example: 2*. Id returned through loading of participant"
+                  schema:
+                      type: integer
+                - name: shipcall_id
+                  in: query
+                  required: true
+                  description: "**Id of ship call**. *Example: 52*. Id given in ship call list"
+                  schema:
+                      $ref: "#/components/schemas/shipcallId"
+            responses:
+                200:
+                    description: notification list
+                    content:
+                        application/json:
+                            schema:
+                                $ref: "#/components/schemas/notification"
+                400:
+                    $ref: "#/components/responses/400"
+                401:
+                    $ref: "#/components/responses/401"
+                500:
+                    $ref: "#/components/responses/500"
+                503:
+                    $ref: "#/components/responses/503"
+    /berths:
+        get:
+            summary: Gets a list of all berths registered
+            responses:
+                200:
+                    description: list of berths
+                    content:
+                        application/json:
+                            schema:
+                                $ref: "#/components/schemas/berth_list"
+                400:
+                    $ref: "#/components/responses/400"
+                401:
+                    $ref: "#/components/responses/401"
+                500:
+                    $ref: "#/components/responses/500"
+                503:
+                    $ref: "#/components/responses/503"
 components:
-  schemas:
-    credentials:
-      type: object
-      required:
-        - username
-        - password
-      properties:
-        username:
-          type : string
-        password:
-          type : string
-          format: password
-    timesId:
-      description: The unique identifier for a times entry
-      type: integer
-    shipcallId:
-      description: The unique identifier of a ship call
-      type: integer
-    shipcall:
-      type: object
-      required:
-        - id
-        - ship_id
-        - type
-        - eta
-      properties:
-        id:
-          $ref: '#/components/schemas/shipcallId'
-        ship_id:
-          type: integer
-        type:
-          type: string
-          enum:
-            - incoming
-            - outgoing
-            - shifting
-        eta:
-          type: string
-          format: date-time
-        voyage:
-          type: string
-          maxLength: 16
-          nullable: true
-        etd:
-          type: string
-          format: date-time
-          nullable: true
-        arrival_berth_id:
-          type: integer
-          nullable: true
-        departure_berth_id:
-          type: integer
-          nullable: true
-        tug_reguired:
-          type: boolean
-          nullable: true
-        pilot_required:
-          type: boolean
-          nullable: true
-        flags:
-          type: integer
-          nullable: true
-        pier_side:
-          type: boolean
-          nullable: true
-        bunkering:
-          type: boolean
-          nullable: true
-        replenishing_terminal:
-          type: boolean
-          nullable: true
-        replenishing_lock:
-          type: boolean
-          nullable: true
-        draft:
-          type: number
-          format: float
-          nullable: true
-        tidal_window_from:
-          type: string
-          format: date-time
-          nullable: true
-        tidal_window_to:
-          type: string
-          format: date-time
-          nullable: true
-        rain_sensitive_cargo:
-          type: boolean
-          nullable: true
-        recommended_tugs:
-          type: integer
-          nullable: true
-        anchored:
-          type: boolean
-          nullable: true
-        moored_lock:
-          type: boolean
-          nullable: true
-        canceled:
-          type: boolean
-          nullable: true
-        participants:
-          type: array
-          items:
+    schemas:
+        credentials:
+            type: object
+            required:
+                - username
+                - password
+            properties:
+                username:
+                    type: string
+                password:
+                    type: string
+                    format: password
+        timesId:
+            description: The unique identifier for a times entry
             type: integer
-          example: [1, 5, 7]
-        created:
-          type: string
-          format: date-time
-        modified:
-          type: string
-          format: date-time
-          nullable: true
+        shipcallId:
+            description: The unique identifier of a ship call
+            type: integer
+        shipcall:
+            type: object
+            required:
+                - id
+                - ship_id
+                - type
+                - eta
+            properties:
+                id:
+                    $ref: "#/components/schemas/shipcallId"
+                ship_id:
+                    type: integer
+                type:
+                    type: string
+                    enum:
+                        - incoming
+                        - outgoing
+                        - shifting
+                eta:
+                    type: string
+                    format: date-time
+                voyage:
+                    type: string
+                    maxLength: 16
+                    nullable: true
+                etd:
+                    type: string
+                    format: date-time
+                    nullable: true
+                arrival_berth_id:
+                    type: integer
+                    nullable: true
+                departure_berth_id:
+                    type: integer
+                    nullable: true
+                tug_reguired:
+                    type: boolean
+                    nullable: true
+                pilot_required:
+                    type: boolean
+                    nullable: true
+                flags:
+                    type: integer
+                    nullable: true
+                pier_side:
+                    type: boolean
+                    nullable: true
+                bunkering:
+                    type: boolean
+                    nullable: true
+                replenishing_terminal:
+                    type: boolean
+                    nullable: true
+                replenishing_lock:
+                    type: boolean
+                    nullable: true
+                draft:
+                    type: number
+                    format: float
+                    nullable: true
+                tidal_window_from:
+                    type: string
+                    format: date-time
+                    nullable: true
+                tidal_window_to:
+                    type: string
+                    format: date-time
+                    nullable: true
+                rain_sensitive_cargo:
+                    type: boolean
+                    nullable: true
+                recommended_tugs:
+                    type: integer
+                    nullable: true
+                anchored:
+                    type: boolean
+                    nullable: true
+                moored_lock:
+                    type: boolean
+                    nullable: true
+                canceled:
+                    type: boolean
+                    nullable: true
+                participants:
+                    type: array
+                    items:
+                        type: integer
+                    example: [1, 5, 7]
+                created:
+                    type: string
+                    format: date-time
+                modified:
+                    type: string
+                    format: date-time
+                    nullable: true
 
-    shipcalls:
-      type: array
-      items:
-        $ref: '#/components/schemas/shipcall'
+        shipcalls:
+            type: array
+            items:
+                $ref: "#/components/schemas/shipcall"
 
-    times:
-      type: object
-      description: the id parameter needs to be missing on POST and to be present on PUT (Update) calls, otherwise a 400 response will be generated
-      required:
-        - shipcall_id
-        - participant_id
-      properties:
-        id:
-          type: integer
-        eta_berth:
-          type: string
-          format: date-time
-          nullable: true
-        eta_berth_fixed:
-          type: boolean
-          nullable: true
-        etd_berth:
-          type: string
-          format: date-time
-          nullable: true
-        etd_berth_fixed:
-          type: boolean
-          nullable: true
-        lock_time:
-          type: string
-          format: date-time
-          nullable: true
-        lock_time_fixed:
-          type: boolean
-          nullable: true
-        zone_entry:
-          type: string
-          format: date-time
-          nullable: true
-        zone_entry_fixed:
-          type: boolean
-          nullable: true
-        operations_start:
-          type: string
-          format: date-time
-          nullable: true
-        operations_end:
-          type: string
-          format: date-time
-          nullable: true
-        remarks:
-          type: string
-          maxLength: 512
-          nullable: true
-        shipcall_id:
-          type: integer
-        participant_id:
-          type: integer
-        created:
-          type: string
-          format: date-time
-        modified:
-          type: string
-          format: date-time
-          nullable: true
+        times:
+            type: object
+            description: the id parameter needs to be missing on POST and to be present on PUT (Update) calls, otherwise a 400 response will be generated
+            required:
+                - shipcall_id
+                - participant_id
+            properties:
+                id:
+                    type: integer
+                eta_berth:
+                    type: string
+                    format: date-time
+                    nullable: true
+                eta_berth_fixed:
+                    type: boolean
+                    nullable: true
+                etd_berth:
+                    type: string
+                    format: date-time
+                    nullable: true
+                etd_berth_fixed:
+                    type: boolean
+                    nullable: true
+                lock_time:
+                    type: string
+                    format: date-time
+                    nullable: true
+                lock_time_fixed:
+                    type: boolean
+                    nullable: true
+                zone_entry:
+                    type: string
+                    format: date-time
+                    nullable: true
+                zone_entry_fixed:
+                    type: boolean
+                    nullable: true
+                operations_start:
+                    type: string
+                    format: date-time
+                    nullable: true
+                operations_end:
+                    type: string
+                    format: date-time
+                    nullable: true
+                remarks:
+                    type: string
+                    maxLength: 512
+                    nullable: true
+                shipcall_id:
+                    type: integer
+                participant_id:
+                    type: integer
+                created:
+                    type: string
+                    format: date-time
+                modified:
+                    type: string
+                    format: date-time
+                    nullable: true
 
-    times_list:
-      type: array
-      items:
-        $ref: '#/components/schemas/times'
+        times_list:
+            type: array
+            items:
+                $ref: "#/components/schemas/times"
 
-    berth:
-      type: object
-      description: Ship berth used for a ship call
-      properties:
-        id:
-          type: integer
-        name:
-          type: string
-          maxLength: 128
-        participant_id:
-          type: integer
-          nullable: true
-        lock:
-          type: boolean
-          nullable: true
-        created:
-          type: string
-          format: date-time
-        modified:
-          type: string
-          format: date-time
-          nullable: true
-        deleted:
-          type: boolean
-          default: false
+        berth:
+            type: object
+            description: Ship berth used for a ship call
+            properties:
+                id:
+                    type: integer
+                name:
+                    type: string
+                    maxLength: 128
+                participant_id:
+                    type: integer
+                    nullable: true
+                lock:
+                    type: boolean
+                    nullable: true
+                created:
+                    type: string
+                    format: date-time
+                modified:
+                    type: string
+                    format: date-time
+                    nullable: true
+                deleted:
+                    type: boolean
+                    default: false
 
-    berth_list:
-      type: array
-      items:
-        $ref: '#/components/schemas/berth'
+        berth_list:
+            type: array
+            items:
+                $ref: "#/components/schemas/berth"
 
-    ship:
-      type: object
-      description: a ship
-      properties:
-        id:
-          type: integer
-        name:
-          type: string
-          maxLength: 64
-        imo:
-          type: integer
-          nullable: true
-        callsign:
-          type: string
-          maxLength: 8
-          nullable: true
-        participant_id:
-          type: integer
-          nullable: true
-        length:
-          type: number
-          format: float
-          nullable: true
-        width:
-          type: number
-          format: float
-          nullable: true
-        is_tug:
-          type: boolean
-          default: false
-        bollard_pull:
-          type: integer
-          nullable: true
-        eni:
-          type: integer
-          nullable: true
-        created:
-          type: string
-          format: date-time
-        modified:
-          type: string
-          format: date-time
-          nullable: true
-        deleted:
-          type: boolean
-          default: false
+        ship:
+            type: object
+            description: a ship
+            properties:
+                id:
+                    type: integer
+                name:
+                    type: string
+                    maxLength: 64
+                imo:
+                    type: integer
+                    nullable: true
+                callsign:
+                    type: string
+                    maxLength: 8
+                    nullable: true
+                participant_id:
+                    type: integer
+                    nullable: true
+                length:
+                    type: number
+                    format: float
+                    nullable: true
+                width:
+                    type: number
+                    format: float
+                    nullable: true
+                is_tug:
+                    type: boolean
+                    default: false
+                bollard_pull:
+                    type: integer
+                    nullable: true
+                eni:
+                    type: integer
+                    nullable: true
+                created:
+                    type: string
+                    format: date-time
+                modified:
+                    type: string
+                    format: date-time
+                    nullable: true
+                deleted:
+                    type: boolean
+                    default: false
 
-    ship_list:
-      type: array
-      items:
-        $ref: '#/components/schemas/ship'
+        ship_list:
+            type: array
+            items:
+                $ref: "#/components/schemas/ship"
 
-    notification:
-      type: object
-      description: a notification created by the engine if a times entry violates a rule
-      properties:
-        id:
-          type: integer
-        times_id:
-          type: integer
-        participant_id:
-          type: integer
-        notification_type:
-          type: string
-          enum: [undefined, email, push]
-        timestamp:
-          type: string
-          format: date-time
-        acknowledged:
-          type: boolean
-        created:
-          type: string
-          format: date-time
-        modified:
-          type: string
-          format: date-time
-          nullable: true
+        notification:
+            type: object
+            description: a notification created by the engine if a times entry violates a rule
+            properties:
+                id:
+                    type: integer
+                times_id:
+                    type: integer
+                participant_id:
+                    type: integer
+                notification_type:
+                    type: string
+                    enum: [undefined, email, push]
+                timestamp:
+                    type: string
+                    format: date-time
+                acknowledged:
+                    type: boolean
+                created:
+                    type: string
+                    format: date-time
+                modified:
+                    type: string
+                    format: date-time
+                    nullable: true
 
-    notification_list:
-      type: array
-      items:
-        $ref: '#/components/schemas/notification'
+        notification_list:
+            type: array
+            items:
+                $ref: "#/components/schemas/notification"
 
-    participant:
-      type: object
-      description: A organisational entity that participates in Bremen Calling
-      properties:
-        id:
-          type: integer
-        name:
-          type: string
-          maxLength: 128
-        street:
-          type: string
-          maxLength: 128
-        postal code:
-          type: string
-          maxLength: 5
-        city:
-          type: string
-          maxLength: 64
-        type:
-          type: integer
-        created:
-          type: string
-          format: date-time
-        modified:
-          type: string
-          format: date-time
-          nullable: true
-        deleted:
-          type: boolean
-          default: false
+        participant:
+            type: object
+            description: A organisational entity that participates in Bremen Calling
+            properties:
+                id:
+                    type: integer
+                name:
+                    type: string
+                    maxLength: 128
+                street:
+                    type: string
+                    maxLength: 128
+                postal code:
+                    type: string
+                    maxLength: 5
+                city:
+                    type: string
+                    maxLength: 64
+                type:
+                    type: integer
+                created:
+                    type: string
+                    format: date-time
+                modified:
+                    type: string
+                    format: date-time
+                    nullable: true
+                deleted:
+                    type: boolean
+                    default: false
 
-    participant_list:
-      type: array
-      items:
-        $ref: '#/components/schemas/participant'
+        participant_list:
+            type: array
+            items:
+                $ref: "#/components/schemas/participant"
 
-    login_result:
-      type: object
-      description: result structure of a successful login attempt
-      properties:
-        id:
-          type: integer
-        participant_id:
-          type: integer
-        first_name:
-          type: string
-        last_name:
-          type: string
-        user_name:
-          type: string
-        user_phone:
-          type: string
-        exp:
-          type: number
-          format: float
-        token:
-          type: string
+        login_result:
+            type: object
+            description: result structure of a successful login attempt
+            properties:
+                id:
+                    type: integer
+                participant_id:
+                    type: integer
+                first_name:
+                    type: string
+                last_name:
+                    type: string
+                user_name:
+                    type: string
+                user_phone:
+                    type: string
+                exp:
+                    type: number
+                    format: float
+                token:
+                    type: string
 
-    Error:
-      type: object
-      required:
-        - message
-      properties:
-        message:
-          description: A human readable error message
-          type: string
+        user_details:
+            type: object
+            description: fields that a user may change
+            properties:
+                id:
+                    type: integer
+                old_password:
+                    type: string
+                    nullable: true
+                new_password:
+                    type: string
+                    nullable: true
+                first_name:
+                    type: string
+                    nullable: true
+                last_name:
+                    type: string
+                    nullable: true
+                user_phone:
+                    type: string
+                    nullable: true
 
-  securitySchemes:
-    ApiKey:
-      type: apiKey
-      in: header
-      name: Authorization
-  responses:
-    400:
-      description: Invalid input
-      content:
-        application/json:
-          schema:
-            $ref: '#/components/schemas/Error'
-    401:
-      description: Not authorized
-      content:
-        application/json:
-          schema:
-            $ref: '#/components/schemas/Error'
-    500:
-      description: Unexpected error
-      content:
-        application/json:
-          schema:
-            $ref: '#/components/schemas/Error'
-    503:
-      description: Not available
-      content:
-        application/json:
-          schema:
-            $ref: '#/components/schemas/Error'
+        Error:
+            type: object
+            required:
+                - message
+            properties:
+                message:
+                    description: A human readable error message
+                    type: string
+
+    securitySchemes:
+        ApiKey:
+            type: apiKey
+            in: header
+            name: Authorization
+    responses:
+        400:
+            description: Invalid input
+            content:
+                application/json:
+                    schema:
+                        $ref: "#/components/schemas/Error"
+        401:
+            description: Not authorized
+            content:
+                application/json:
+                    schema:
+                        $ref: "#/components/schemas/Error"
+        500:
+            description: Unexpected error
+            content:
+                application/json:
+                    schema:
+                        $ref: "#/components/schemas/Error"
+        503:
+            description: Not available
+            content:
+                application/json:
+                    schema:
+                        $ref: "#/components/schemas/Error"
 
 security:
-  - ApiKey: []
+    - ApiKey: []
 externalDocs:
-  url: http://textbausteine.net/
-  description: Extra documentation and conditions for Bremen Calling
+    url: http://textbausteine.net/
+    description: Extra documentation and conditions for Bremen Calling
diff --git a/src/BreCalClient/AboutDialog.xaml b/src/BreCalClient/AboutDialog.xaml
index b055524..b45900a 100644
--- a/src/BreCalClient/AboutDialog.xaml
+++ b/src/BreCalClient/AboutDialog.xaml
@@ -7,7 +7,7 @@
         xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
         xmlns:p = "clr-namespace:BreCalClient.Resources"
         mc:Ignorable="d"
-        Title="Help" Height="250" Width="500">
+        Title="Help" Height="270" Width="500">
     <Grid>
         <Grid.ColumnDefinitions>
             <ColumnDefinition Width="180" />
diff --git a/src/BreCalClient/AboutDialog.xaml.cs b/src/BreCalClient/AboutDialog.xaml.cs
index e560e36..61e6154 100644
--- a/src/BreCalClient/AboutDialog.xaml.cs
+++ b/src/BreCalClient/AboutDialog.xaml.cs
@@ -1,17 +1,11 @@
-using System;
-using System.Collections.Generic;
+// Copyright (c) 2023 schick Informatik
+// Description: Show about info and allow user detail editing
+// 
+
+using System;
 using System.Diagnostics;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
-using System.Windows.Data;
-using System.Windows.Documents;
-using System.Windows.Input;
-using System.Windows.Media;
-using System.Windows.Media.Imaging;
-using System.Windows.Shapes;
 
 namespace BreCalClient
 {
@@ -45,7 +39,7 @@ namespace BreCalClient
 
         private void buttonChangePassword_Click(object sender, RoutedEventArgs e)
         {
-            this.ChangePasswordRequested?.Invoke(this.wpBoxOldPassword.Text, this.wpBoxNewPassword.Text);
+            this.ChangePasswordRequested?.Invoke(this.wpBoxOldPassword.Password, this.wpBoxNewPassword.Password);
         }
 
         private void Hyperlink_RequestNavigate(object sender, System.Windows.Navigation.RequestNavigateEventArgs e)
@@ -57,10 +51,11 @@ namespace BreCalClient
         private void wpBoxOldPassword_TextChanged(object sender, TextChangedEventArgs e)
         {
             this.buttonChangePassword.IsEnabled = 
-                (this.wpBoxOldPassword.Text.Length > 0) &&
-                (this.wpBoxNewPassword.Text.Length > 0) &&
-                (this.wpBoxNewPasswordRepeat.Text.Length > 0) &&
-                (this.wpBoxNewPassword.Text.Equals(this.wpBoxNewPasswordRepeat.Text));
+                (this.wpBoxOldPassword.Password.Length > 0) &&
+                (this.wpBoxNewPassword.Password.Length > 0) &&
+                (this.wpBoxNewPasswordRepeat.Password.Length > 0) &&
+                this.wpBoxNewPassword.Password.Equals(this.wpBoxNewPasswordRepeat.Password) &&
+                (!this.wpBoxNewPassword.Password.Equals(this.wpBoxOldPassword.Password));
         }
 
         #endregion
diff --git a/src/BreCalClient/MainWindow.xaml.cs b/src/BreCalClient/MainWindow.xaml.cs
index ca79547..38b5462 100644
--- a/src/BreCalClient/MainWindow.xaml.cs
+++ b/src/BreCalClient/MainWindow.xaml.cs
@@ -134,12 +134,35 @@ namespace BreCalClient
 
             }
         }
+
         private void buttonInfo_Click(object sender, RoutedEventArgs e)
         {
             AboutDialog ad = new();
-            ad.ChangePasswordRequested += (oldPw, newPw) =>
+            ad.ChangePasswordRequested += async (oldPw, newPw) =>
             {
-
+                if (_loginResult != null)
+                {
+                    UserDetails ud = new()
+                    {
+                        Id = _loginResult.Id,
+                        FirstName = _loginResult.FirstName,
+                        LastName = _loginResult.LastName,
+                        UserPhone = _loginResult.UserPhone,
+                        OldPassword = oldPw,
+                        NewPassword = newPw
+                    };
+                    try
+                    {
+                        await _api.UserPutAsync(ud);
+                    }
+                    catch (Exception ex)
+                    {
+                        this.Dispatcher.Invoke(new Action(() =>
+                        {
+                            MessageBox.Show(ex.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
+                        }));
+                    }
+                }
             };
             ad.ShowDialog();
         }
diff --git a/src/server/BreCal/__init__.py b/src/server/BreCal/__init__.py
index 5f67db0..e15818a 100644
--- a/src/server/BreCal/__init__.py
+++ b/src/server/BreCal/__init__.py
@@ -11,6 +11,7 @@ from .api import notifications
 from .api import berths
 from .api import ships
 from .api import login
+from .api import user
 
 sessions = dict()
 
@@ -39,6 +40,7 @@ def create_app(test_config=None):
     app.register_blueprint(berths.bp)
     app.register_blueprint(ships.bp)
     app.register_blueprint(login.bp)
+    app.register_blueprint(user.bp)
 
 
     logging.basicConfig(filename='brecal.log', level=logging.DEBUG, format='%(asctime)s | %(name)s | %(levelname)s | %(message)s')
diff --git a/src/server/BreCal/api/user.py b/src/server/BreCal/api/user.py
new file mode 100644
index 0000000..bbd5b4b
--- /dev/null
+++ b/src/server/BreCal/api/user.py
@@ -0,0 +1,24 @@
+from flask import Blueprint, request
+from ..schemas import model
+from .. import impl
+from ..services.auth_guard import auth_guard
+import json
+import logging
+
+bp = Blueprint('user', __name__)
+
+@bp.route('/user', methods=['put'])
+@auth_guard() # no restriction by role
+def PutUser():
+
+    try:
+        content = request.get_json(force=True)
+        loadedModel = model.UserSchema().load(data=content, many=False, partial=True)
+
+    except Exception as ex:
+        logging.error(ex)
+        print(ex)
+        return json.dumps("bad format"), 400
+
+    return impl.user.PutUser(loadedModel)
+
diff --git a/src/server/BreCal/impl/__init__.py b/src/server/BreCal/impl/__init__.py
index 4052c42..4e1e218 100644
--- a/src/server/BreCal/impl/__init__.py
+++ b/src/server/BreCal/impl/__init__.py
@@ -5,3 +5,4 @@ from . import shipcalls
 from . import times
 from . import ships
 from . import login
+from . import user
\ No newline at end of file
diff --git a/src/server/BreCal/impl/login.py b/src/server/BreCal/impl/login.py
index ed0aab8..cef9e4c 100644
--- a/src/server/BreCal/impl/login.py
+++ b/src/server/BreCal/impl/login.py
@@ -14,7 +14,7 @@ def GetUser(options):
             hash = bcrypt.hashpw(options["password"].encode('utf-8'), bcrypt.gensalt( 12 )).decode('utf8')
             pooledConnection = local_db.getPoolConnection()
             commands = pydapper.using(pooledConnection)
-            data = commands.query("SELECT id, participant_id, first_name, last_name, user_name, user_email, user_phone, password_hash, api_key FROM user WHERE user_name = ?username? OR user_email = ?username?",
+            data = commands.query("SELECT id, participant_id, first_name, last_name, user_name, user_email, user_phone, password_hash, api_key, created, modified FROM user WHERE user_name = ?username? OR user_email = ?username?",
                                   model=model.User, param={"username" : options["username"]})
             pooledConnection.close()
             # print(data)
diff --git a/src/server/BreCal/impl/user.py b/src/server/BreCal/impl/user.py
new file mode 100644
index 0000000..ece0d5f
--- /dev/null
+++ b/src/server/BreCal/impl/user.py
@@ -0,0 +1,71 @@
+import json
+import logging
+import pydapper
+import bcrypt
+
+from ..schemas import model
+from .. import local_db
+
+def PutUser(schemaModel):
+    """
+
+    :param schemaModel: The deserialized dict of the request
+    """
+
+     # This updates an *existing* entry
+    try:
+
+        pooledConnection = local_db.getPoolConnection()
+        commands = pydapper.using(pooledConnection)
+
+        # test if object to update is found
+
+        sentinel = object()
+        theuser = commands.query_single_or_default("SELECT * FROM user where id = ?id?", sentinel, param={"id" : schemaModel["id"]}, model=model.User)
+        if theuser is sentinel:
+            pooledConnection.close()
+            return json.dumps("no such record"), 404, {'Content-Type': 'application/json; charset=utf-8'}
+
+        # see if we need to update public fields
+        if "first_name" in schemaModel or "last_name" in schemaModel or "user_phone" in schemaModel:
+            query = "UPDATE user SET "
+            isNotFirst = False
+            for key in schemaModel.keys():
+                if key == "id":
+                    continue
+                if key == "old_password":
+                    continue
+                if key == "new_password":
+                    continue
+                if isNotFirst:
+                    query += ", "
+                isNotFirst = True
+                query += key + " = ?" + key + "? "
+
+            query += "WHERE id = ?id?"
+            affected_rows = commands.execute(query, param=schemaModel)
+
+        # update password if available and old pw is (correctly!) given
+        if "old_password" in schemaModel and schemaModel["old_password"] and "new_password" in schemaModel and schemaModel["new_password"]:
+                if bcrypt.checkpw(schemaModel["old_password"].encode("utf-8"), bytes(theuser.password_hash, "utf-8")): # old pw matches
+                    password_hash = bcrypt.hashpw(schemaModel["new_password"].encode('utf-8'), bcrypt.gensalt( 12 )).decode('utf8')
+                    query = "UPDATE user SET password_hash = ?password_hash? WHERE id = ?id?"
+                    commands.execute(query, param={"password_hash" : password_hash, "id" : schemaModel["id"]})
+                else:
+                    result = {}
+                    result["message"] = "old password invalid"
+                    return json.dumps(result), 400, {'Content-Type': 'application/json; charset=utf-8'}
+
+        pooledConnection.close()
+
+        return json.dumps({"id" : schemaModel["id"]}), 200
+
+    except Exception as ex:
+        logging.error(ex)
+        print(ex)
+        result = {}
+        result["message"] = "call failed"
+        return json.dumps(result), 500, {'Content-Type': 'application/json; charset=utf-8'}
+
+
+
diff --git a/src/server/BreCal/schemas/model.py b/src/server/BreCal/schemas/model.py
index e49ee77..439098b 100644
--- a/src/server/BreCal/schemas/model.py
+++ b/src/server/BreCal/schemas/model.py
@@ -146,6 +146,19 @@ class TimesSchema(Schema):
     created = fields.DateTime(Required = False)
     modified = fields.DateTime(Required = False)
 
+# deserialize PUT object target
+
+class UserSchema(Schema):
+    def __init__(self):
+        super().__init__(unknown=None)
+        pass
+    id = fields.Int(required=True)
+    first_name = fields.Str(required=False)
+    last_name = fields.Str(required=False)
+    user_phone = fields.Str(required=False)
+    old_password = fields.Str(required=False)
+    new_password = fields.Str(required=False)
+
 @dataclass
 class Times:
 
@@ -178,6 +191,8 @@ class User:
     user_phone: str
     password_hash: str
     api_key: str
+    created: datetime
+    modified: datetime
 
 @dataclass
 class Ship(Schema):