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+# Collection - QrCodeAuth
+
+## API Endpoints
+
+|                                       Route                                        |                                         Description                                          |
+| :--------------------------------------------------------------------------------: | :------------------------------------------------------------------------------------------: |
+|                      [POST /auth/qr-code-auth](#post-authqr-code-auth)                      |                            Creates a new authentication document.                            |
+|                       [GET /auth/qr-code-auth](#get-authqr-code-auth)                       |           Retrieves all the authentication document belonging to a specified user            |
+| [PATCH /auth/qr-code-auth](#patch-authqr-code-authauthorization_statusauthorization_status) | Updates the authorization_status field of an existing qr-code-auth document for the specified user. |
+
+## POST /auth/qr-code-auth
+
+    Creates a new qr-code-auth document.
+
+- **Params**  
+  None
+- **Query**
+  None
+- **Body**
+  - Attributes
+    - **user_id** (required, string): Specifies the user id for the document.
+    - **device_info** (required, string): Specifies the device information associated with the authentication.
+    - **device_id** : Specifies the ID of the User' device whose device id will be unique.
+
+- **Headers**
+  - Content-Type: application/json
+- **Cookie**
+  None
+- **Success Response:**
+  - **Code:** 201
+    - **Content:**
+      ```json
+      {
+        "message": "String",
+        "data": {
+          "user_id": "String",
+          "device_info": "String",
+          "device_id": "String",
+          "authorization_status": "String",
+        }
+      }
+      ```
+- **Error Response:**
+
+  - **Code:** 400
+
+    - **Content:**
+      ```json
+      {
+        "message": "Bad Request"
+      }
+      ```
+
+  - **Code:** 409
+
+    - **Content:**
+      ```json
+      {
+        "message": "The authentication document has already been created"
+      }
+      ```
+
+  - **Code:** 500
+    - **Content:**
+      ```json
+      {
+        "message": "The server has encountered an unexpected error. Please contact the administrator for more information."
+      }
+      ```
+
+- **Example for user authentication document creation request:**
+  POST /auth/qr-code-auth<br/>
+  Content-Type: application/json<br/>
+  Request-Body:<br/>
+
+  ```json
+  {
+    "device_info": "t5k77PHnuDSrgEzvMJAj",
+    "user_id": "NLFSj7Kz30oHgolfIZtJ",
+    "device_id": "sdkdjASdjdsfns3kdj"
+  }
+  ```
+
+  Response :
+  Status 201<br/>
+  Content-Type: application/json<br/>
+
+  ```json
+  {
+    "data": {
+      "user_id": "SooJK37gzjIZfFNH0tlL",
+      "device_info": "t5k77PHnuDSrgEzvMJAj",
+      "device_id": "sdkdjASdjdsfns3kdj",
+      "authorization_status": "NOT_INIT",
+    },
+    "message": "authentication document created successfully."
+  }
+  ```
+
+## GET /auth/qr-code-auth
+
+Retrieves THE authentication document.
+
+- **Params**
+  None
+- **Query**
+  - device_id : Specifies the ID of the User' device whose device id will be unique.
+- **Body**  
+  None
+- **Headers**  
+  None
+- **Cookie**  
+  None
+- **Success Response:**
+
+  - **Code:** 200
+
+    - **Content:**
+
+    ```json
+    {
+      "message": "String",
+      "data": {
+        "user_id": "String",
+        "device_id": "String",
+        "device_info": "String",
+        "authorization_status": "String",
+        "access_token": "String"
+      }
+    }
+    ```
+
+- **Error Response:**
+
+  - **Code:** 400
+
+    - **Content:**
+      ```json
+      {
+        "message": "Bad Request"
+      }
+      ```
+
+  - **Code:** 404
+    - **Content:**
+      ```json
+      {
+        "message": "User with id <:id> does not exist."
+      }
+      ```
+  - **Code:** 500
+    - **Content:**
+      ```json
+      {
+        "message": "The server has encountered an unexpected error. Please contact the administrator for more information."
+      }
+      ```
+
+- **Example:**
+  GET /auth/qr-code-auth?device_id=3ioui23u29sjkdnsjkndsk<br/>
+  Status: 200 OK<br/>
+  ```json
+  {
+    "message": "Authentication document retrieved successfully.",
+    "data": {
+      "user_id": "SooJK37gzjIZfFNH0tlL",
+      "device_info": "t5k77PHnuDSrgEzvMJAj",
+      "device_id":"3ioui23u29sjkdnsjkndsk",
+      "authorization_status": "NOT_INIT",
+      "access_token": ""
+    }
+  }
+  ```
+
+   ```
+  GET /auth/qr-code-auth?device_id=InvalidUserData<br/>
+  Status: 404 Not Found<br/>
+  ```json
+  {
+    "message": "No Authentication found."
+  }
+  ```
+  GET /auth/qr-code-auth?user_id=GTB4UUtlKwGemRN2lwBp11&mobileId=3ioui23u29sjkdnsjkndsk<br/>
+  Status: 400 Bad Request
+  ```json
+  {
+    "statusCode": 400,
+    "error": "Bad Request",
+    "message": "invalid query parameters passed"
+  }
+  ```
+  GET /?device_id=3ioui23u29sjkdnsjkndsk
+  Status: 500 Internal Server Error
+  ```json
+  {
+    "message": "The server has encountered an unexpected error. Please contact the administrator for more information."
+  }
+  ```
+
+## PATCH /auth/qr-code-auth/authorization_status/{authorization_status}
+
+Updates the authorization_status field of an existing qr-code-auth document for the specified user.
+
+- **Params**
+  - **authorization_status** (required, string): Specifies the authorization status of the user. The possible values are "NOT_INIT" , "AUTHORIZED" , "REJECTED". The default value will be "NOT_INIT"
+- **Query**
+  None
+- **Headers**
+  Content-Type: application/json
+- **Cookie**  
+  rds-session: `<JWT>`
+- **Success Response:**
+  - **Code:** 200
+    - **Content:**
+      ```json
+      {
+        "message": "String",
+        "data": {
+          "user_id": "String",
+          "device_info": "String",
+          "authorization_status": "String",
+        }
+      }
+      ```
+- **Error Response:**
+
+  - **Code:** 400
+
+    - **Content:**
+      ```json
+      {
+        "message": "Bad Request"
+      }
+      ```
+
+  - **Code:** 401
+    - **Content:**
+      ```json
+      {
+        "statusCode": 401,
+        "error": "Unauthorized",
+        "message": "Unauthenticated User."
+      }
+      ```
+  - **Code:** 404
+    - **Content:**
+      ```json
+      {
+        "message": "Document not found"
+      }
+      ```
+  - **Code:** 500
+    - **Content:**
+      ```json
+      {
+        "message": "The server has encountered an unexpected error. Please contact the administrator for more information."
+      }
+      ```
+
+- **Example for updating an existing authentication document:**
+  PATCH /auth/qr-code-auth/authorization_status/AUTHORIZED<br/>
+  Content-Type: application/json<br/>
+  Request-Body:<br/>
+  None
+  Response :
+  Status 200 OK <br/>
+  Content-Type: application/json<br/>
+
+  ```json
+  {
+    "data": {
+      "user_id": "SooJK37gzjIZfFNH0tlL",
+      "device_info": "t5k77PHnuDSrgEzvMJAj",
+      "authorization_status": "AUTHORIZED",
+    },
+    "message": "Authentication document for user SooJK37gzjIZfFNH0tlL updated successfully."
+  }
+  ```