Can't send a request using grpcurl - grpc

Question

I have a server using NestJs+gRPC, I storage data in PostgreSQL, there is no problems in getting data and so on. I can't send grpcurl request :((
async function bootstrap() {
const app = await NestFactory.create(AppModule);
app.connectMicroservice<MicroserviceOptions>(grpcClientOptions);
await app.startAllMicroservicesAsync();
await app.listen(3000);
console.log(`Application is running on: ${await app.getUrl()}`);
}
(async () => await bootstrap())();
export const grpcClientOptions: ClientOptions = {
transport: Transport.GRPC,
options: {
url: '0.0.0.0:5000',
package: 'user',
protoPath: join(__dirname,'user/user.proto'),
loader: {
keepCase: true,
longs: Number,
defaults: false,
arrays: true,
objects: true,
},
},
};
Proto file looks like
syntax = "proto3";
package user;
service UserService {
rpc FindOne (UserById) returns (User) {}
}
message UserById {
string id = 1;
}
message User {
int32 id = 1;
string name = 2;
string password = 3;
string email = 4;
string createdAt = 5;
string updatedAt = 6;
}
And user controller
#Get(':id')
getById(#Param('id') id: string): Observable<User> {
console.log(id);
return this.userService.findOne({ id : +id });
}
#GrpcMethod('UserService','FindOne')
async findOne(data: UserById): Promise<User> {
const { id } = data;
console.log(id);
return this.userModel.findOne({
where: {
id : id
},
});
}
It works correctly when I sending request from browser, but I can't make it using grpcurl.
enter image description here
Thanks in forward!

Answer 1

I suspect (!) the issue is that you're on Windows but using a forward-slash (/) between src/user whereas on Windows (!?) file path separators should be a back-slash (\).
please see this link on Microsoft Test gRPC services with gRPCurl and try -d '{\"id\": 1}'.

Answer 2

Grpcurl on winodws differes from Linux/Mac.
On winodws, no need to enclose a json message single quote.
E.g.
grpcurl.exe --plaintext -d {\"message\":\"How\u0020are\u0020you\"} localhost:9090 GreetingService.greeting
Note: We need to escape whitespace using \u0020 and escape double quotes with a back slash'\'.