More Facades, User delete

exam/api/docs/api.yaml

@@ -126,12 +126,12 @@ paths:
                   value: { "message": "User not Found" }
       tags:
         - User
-    post:
+    patch:
       summary: Update user
       description:
         Update user with ID. Fields are updated in order username, password, image. If one fails, subsequent are not updated. <br>
         Use special ID <code>self</code> to update logged in user. <br>
-        Requires logged in user to have admin permissions for any ID other than <code>self</code>. <br>
+        Requires logged in user to have admin permissions for any ID other than <code>self</code>.
       security:
         - BasicAuth: []
       parameters:
@@ -177,17 +177,48 @@ paths:
                   value: { "message": "Failed to update username" }
       tags:
         - User
+    delete:
+      summary: Delete user
+      description: Delete user with ID. <br>
+        Requires logged in user to have admin permissions.
+      security:
+        - BasicAuth: []
+      parameters:
+        - name: id
+          in: path
+          description: User ID
+          required: true
+          schema:
+            type: integer
+            format: int14
+      responses:
+        200:
+          description: Success
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/BooleanResponse"
+              examples:
+                Success:
+                  value: true
+        404:
+          description: User not Found
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ErrorResponse"
+              examples:
+                User not Found:
+                  value: { "message": "User not Found" }
+      tags:
+        - User
 
 externalDocs:
   url: https://khofmann.userpage.fu-berlin.de/phpCourse/exam/api/docs/
 security: []
 servers:
   - url: https://khofmann.userpage.fu-berlin.de/phpCourse/exam/api/
-    description: ""
-    variables: {}
 components:
-  links: {}
-  callbacks: {}
   schemas:
     BooleanResponse:
       type: boolean