How do I make GRPC service calls in node

Using improbable-eng/grpc-web 0.8.0

I’m trying to make a GRPC service call in a node environment (doing server side rendering), but I get an error when executing the request from this library. I saw that Node environments are supported and I have verified that my tsconfig has the dom lib included.

When i make a request in node, i get this error: This environment's XHR implementation cannot support binary transfer.

It looks like the browser support checks (https://github.com/improbable-eng/grpc-web/blob/master/client/grpc-web/src/transports/http/xhr.ts#L13-L17) are assuming a browser environment.

Any tips on how to get this working in node?

[hmillison]

you need to set the transport to NodeHttpTransport, why is that line commented out?

When instantiating the Service.RequestClient, you can pass in an options object to configure the transport of the GRPC service.

this is how my code looks:

new Service.RequestClient("http://localhost:5001", {
  transport: NodeHttpTransport()
});

[bioball]

Use this transport: https://www.npmjs.com/package/@improbable-eng/grpc-web-node-http-transport