Implement JWT Authentication Module

[Olowodarey]

User authentication is required for most of the platform's features. We will use JSON Web Tokens (JWT) for stateless authentication.

Acceptance Criteria

• Install @nestjs/jwt and @nestjs/passport.
• Create an AuthModule, AuthService, and AuthController.
• Create a /auth/login and /auth/register endpoint (mocking DB calls if User module doesn't exist yet, or fully integrating if it does).
• Create a JwtStrategy that validates the token and extracts the user payload.
• Create a custom @CurrentUser() decorator to easily grab the user from the Request object.

Useful Resources

• NestJS Authentication Guide

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[spartan124]

@spartan124 has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

Hi, I would like to work on this issue. I have experience implementing JWT Authentication and would like to contribute to this project while growing my opensource contributions.

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[Escelit]

@Escelit has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

I'm a backend developer with experience building NestJS authentication systems. I'd like to work on this JWT authentication module.

Why this matters: Authentication touches every protected feature. A solid JWT implementation ensures users can register, log in, and access resources securely. Getting it right from the start saves headaches later.

My approach:

Install dependencies – @nestjs/jwt, @nestjs/passport, passport-jwt

AuthModule structure – Service, controller, JwtStrategy

Endpoints:

POST /auth/register – Hash password, store user (mock or real DB)

POST /auth/login – Validate credentials, return JWT

JwtStrategy – Extract token, validate, attach user payload to request

@currentuser() decorator – Clean access to authenticated user in controllers

Tests – Login success/failure, token validation, protected routes

Relevant experience:

Built multiple NestJS apps with JWT authentication

Implemented Passport strategies (JWT, local, OAuth)

Created custom decorators for cleaner controllers

Tested auth flows thoroughly (valid/invalid tokens, expired tokens)

Handled edge cases (missing tokens, malformed tokens)
Please assign me – I'll build a clean, testable authentication module that integrates smoothly with the rest of the platform.

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[Bappa-Kamba]

@Bappa-Kamba has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

Interested in taking this on.
Approach:

• Install @nestjs/jwt, @nestjs/passport (plus passport-jwt) and scaffold AuthModule/AuthService/AuthController
• Implement POST /auth/register and POST /auth/login (mock user store if Users module isn’t ready; integrate with Users/Prisma if it is)
• Issue JWTs with a clear payload (sub, email/role as needed) and configurable expiry via env
• Add JwtStrategy to validate tokens and attach the user payload to req.user
• Create a @currentuser() decorator to access the authenticated user cleanly in controllers
• Add basic tests for login/register and strategy validation

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[jahrulezfrancis]

@jahrulezfrancis has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

I'd love to work on implementing the JWT Authentication Module.

I'll install @nestjs/jwt and @nestjs/passport, set up AuthModule, AuthService, and AuthController with /auth/register and /auth/login endpoints. If the User module exists, I'll integrate it fully; otherwise, I'll mock DB calls to keep things moving. I'll also create a JwtStrategy to validate tokens and extract user payloads, plus a custom @currentuser() decorator for clean access to the authenticated user in route handlers. This will give us a solid foundation for stateless authentication across the platform.

ETA: 3–4 hours.

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This issue has been completed by @jahrulezfrancis as part of the Stellar Wave Program's 2nd Wave 🥳

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