[gRPC] Loader option causes ClientGrpc.getService fail

https://github.com/nestjs/nest/blob/d0bd2f7b200ebae72b29bc6b5fc3d62db81cd8fc/packages/microservices/client/client-grpc.ts#L36

(node:1600) UnhandledPromiseRejectionWarning: TypeError: Channel options must be an object with string keys and integer or string values

The message is pretty clear on what causes it. Right now my workaround is removing loader attribute before passing it to the constructor.

[kamilmysliwiec]

Thanks @dzzzzzy. Looks like only the Client throws an exception when loader option is passed. Just published 5.3.7 fix 😃

[dzzzzzy]

@Client({
        transport: Transport.GRPC,
        options: {
            url: 'localhost:50051',
            package: 'notadd_module_user',
            protoPath: join(__dirname, './protobufs/user-module.proto'),
            loader: {
                arrays: true
            }
        }
    })
    public readonly userModuleClient: ClientGrpc;

same error:

Channel options must be an object with string keys and integer or string values

@kamilmysliwiec hello kamil, the loader options can not work on @Client with grpc, could you give me some help?

[System Information]
OS Version     : Linux 4.18
NodeJS Version : v10.7.0
YARN Version    : 1.9.4
[Nest Information]
microservices version : 5.3.6
graphql version       : 5.2.2
common version        : 5.3.6
core version          : 5.3.6