import { Injectable, CanActivate, ExecutionContext } from '@nestjs/common';
import admin = require('firebase-admin');
@Injectable()
export class AuthGuard implements CanActivate {
async canActivate(context: ExecutionContext): Promise<boolean> {
const request = context.switchToHttp().getRequest();
const authorization = request.headers['authorization'];
if (authorization && authorization.startsWith('Bearer ')) {
const token = authorization.substring(7, authorization.length);
request.user = await admin.auth().verifyIdToken(token);
return !!request.user;
}
return false;
}
}
