(Development) : Implement an API Endpoint to allow users to add username

[rohit-zip]

Issue Description

Rules:

• Code implementation should strictly adhere to the designated components such as User Controller, User Implementation, and associated modules.
• Maintain conformity with the CQRS pattern while refraining from any alterations to the project structure.
• Avoid introducing new variables in User Entity and Document.
• Ensure data persistence across both PostgreSQL and Elasticsearch.

Endpoint:

• Complete Endpoint: https://api.bloggios.in/auth-provider/user/add-username (GET)
• Target Controller: User Controller

Request Param:

• username: Specify the username for the user.

Note:

Utilize @AuthenticationPrincipal to access logged-in user details, including userId, email, username, and authorities.

Response Body:

• ApplicationResponse: Contains a descriptive message along with the affected userId.

Validations:

• Username should be unique
• Automatic extraction of logged-in user data via @AuthenticationPrincipal.
• Username constraints: Max 16 characters, no special characters at the beginning, only "-" and "_" allowed as special characters, and numbers permitted.
• Convert the username to lowercase.

Exception Handling

• Throw BadRequest or any other exception with proper exception code in it. Please message for the error in error-messages.properties file present in resources directory.
• Add message in front of that particular error code
• Error codes should be sequential and starts with DE which depicts Data Error

Contact:

For further assistance, please reach out:

• Email: [email protected]
• Discord Link: Bloggios Discord
• LinkedIn: rohit-zip
• Phone: +91-9571406506

[kesrishubham2510]

Hi @rohit-zip, I see the targetController has a RequestMapping path "/auth-provider/user-auth/read" already adding a post method with "/auth-provider/user/add-username" endpoint would be redundant I think.

Suggestion:- Either the RequestMapping could be modified to EndpointConstants.CONTEXT_PATH and the "/user-auth/read" can be appended specifically to the Get methods only.

Am I missing anything here ?