chat-api/src/auth/jwt-auth.guard.ts

import { ExecutionContext, Injectable } from '@nestjs/common'
import { Reflector } from '@nestjs/core'
import { AuthGuard } from '@nestjs/passport'
import { IS_PUBLIC_KEY } from './public.decorator'

@Injectable()
export class JwtAuthGuard extends AuthGuard('jwt') {
    constructor(private reflector: Reflector) {
        super()
    }

    canActivate(context: ExecutionContext) {
        const isPublic = this.reflector.getAllAndOverride<boolean>(IS_PUBLIC_KEY, [
            context.getHandler(),
            context.getClass()
        ])
        if (isPublic) {
            return true
        }
        return super.canActivate(context)
    }
}