Error on connection to node v7.0.5

Clients
1

For the connection to the our server we are using @concordium/node-sdk package with the latest version 9.5.3
Since the GRPC V1 was deprecated we needed to switch from using the JsonRPCClient to use the ConcordiumGRPCClient from common-sdk that is inside the package.

are old code was

const {
  HttpProvider,
  JsonRpcClient,
...,
} = require('@concordium/node-sdk');

constructor() {
this.client = new ConcordiumGRPCClient(new HttpProvider(concordiumJSONNode + ':' + concordiumJSONPort));
....
}

but when we chaged to use the ConcordiumGRPCClient we are getting an error

const {
  ConcordiumGRPCClient,
...,
} = require('@concordium/node-sdk');
const { GrpcTransport } = require('@protobuf-ts/grpc-transport');
const grpc = require('@grpc/grpc-js');

constructor() {
const transport = new GrpcTransport({
      host: `${concordiumJSONPort}:${concordiumJSONPort}`,
      channelCredentials: grpc.credentials.createSsl(),
      http2Options: {
          keepaliveTimeoutMs: 10000,
          keepalivePermitWithoutCalls: 1,
      }
    });
    this.client = new ConcordiumGRPCClient(transport);
....
}

and we are getting this error on a health check

const check = await client.healthCheck();
console.log(check);
{
 isHealthy: false,
 message: 'Received RST_STREAM with code 2 triggered by internal client error: Protocol error'
}

any ideas what am i missing?
thank you in advance

2

Hi there
Just took a quick glance and the value of host looks off, maybe you meant to use concordiumJSONNode.

3

Thank you… we where able to solved it…
we where trying to connect client to the old JsonRpcClient port…