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auth.guard.ts
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auth.guard.ts
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import { Injectable, CanActivate, ExecutionContext } from "@nestjs/common";
import { Observable } from "rxjs";
import { FastifyRequest } from "fastify";
import { config } from "@/config";
import { ErrorCodes, HttpException } from "@/utils";
@Injectable()
export class AuthGuard implements CanActivate {
canActivate(
context: ExecutionContext,
): boolean | Promise<boolean> | Observable<boolean> {
const request: FastifyRequest = context.switchToHttp().getRequest();
return validateRequest(request);
}
}
function validateRequest(request: FastifyRequest): boolean {
const authHeader: string | undefined = request.headers.authorization;
const match = (authHeader ?? "").match(/Bearer (.*)/i);
const apiKey = match ? match[1] : null;
if (apiKey !== config.apiKey) {
throw new HttpException(
401,
"Invalid api key",
ErrorCodes.INVALID_AUTHENTICATION,
);
}
return true;
}