/TypeScript/Use AuthGuard with gRPC Metadata

Use AuthGuard with gRPC Metadata

import {Injectable, CanActivate, ExecutionContext} from '@nestjs/common';
import {Observable, throwError} from 'rxjs';
import {JwtService} from '@nestjs/jwt';

@Injectable()
export class GrpcAuthGuard implements CanActivate {

    constructor(private  jwtService: JwtService) {

    }

    canActivate(context: ExecutionContext): boolean | Promise<boolean> | Observable<boolean> {
        const type = context.getType();
        const prefix = 'Bearer ';
        let header;
        if(type==='rpc') {
            const metadata = context.getArgByIndex(1); // metadata
            if (!metadata) {
                return false;
            }
            header = metadata.get('Authorization')[0];
        }

        if (!header || !header.includes(prefix)) {
            return false;
        }

        const token = header.slice(header.indexOf(' ') + 1);
        try {
            const valid = this.jwtService.verify(token);
            return true;
        } catch (e) {
            return false;
        }
    }
}

Similar codes

0 vote117 views1 answer
Create and use constants in angularjs
TypeScript
0 vote119 views2 answers
Ixl ansers
TypeScript
0 vote132 views1 answer
Outputs i angular
TypeScript
0 vote111 views1 answer
'create' is deprecated
TypeScript
0 vote139 views1 answer
Sprockets cannot load such file sass
TypeScript
1 vote110 views2 answers
Downloading youtube playlists using youtube-dl in highest quality
TypeScript
13 votes75 views7 answers
Lua print table contents
TypeScript
0 vote108 views1 answer
How to use a loop for each elements in mongo db
TypeScript
0 vote114 views1 answer
Typescript ge t current screen resolution
TypeScript
6 votes124 views2 answers
Get arguments from url flask
TypeScript