Nodejs-dialogflow: new SessionClient in docker: TypeError: Call can only be created with Channel.createCall

[bvkatwijk]

When I try to create a SessionClient in a docker container, an error is thrown with a message that is not very helpful.

Environment details

• OS: macOS High Sierra (version 10.13.6 (17G65))
• Node.js version: 8.11.3
• npm version: 5.7.1
• dialogflow-nodejs-client-v2 version: 0.6.0

Steps to reproduce

1. Mount working setup into a Dockerfile (I've used node:8.11.3-jessie)

Source file is something like:

import dialogflow from "dialogflow";

const config = {
  credentials: {
    client_email: process.env.DIALOGFLOW_CLIENT_EMAIL,
    private_key: process.env.DIALOGFLOW_PRIVATE_KEY,
  },
};
const sessionClient = new dialogflow.SessionsClient(config);

Calls to new dialogflow.SessionsClient(config) result in stacktrace:

    TypeError: Call can only be created with Channel.createCall

      at getCall (node_modules/grpc/src/client_interceptors.js:651:14)
      at node_modules/grpc/src/client_interceptors.js:784:16
      at node_modules/grpc/src/client_interceptors.js:1381:14
      at _buildChain (node_modules/grpc/src/client_interceptors.js:1384:33)
      at Object.getInterceptingCall (node_modules/grpc/src/client_interceptors.js:1346:10)
      at ServiceClient.Object.<anonymous>.Client.makeUnaryRequest (node_modules/grpc/src/client.js:481:47)
      at apply (node_modules/lodash/lodash.js:478:17)
      at ServiceClient.wrapper (node_modules/lodash/lodash.js:5337:16)
      at node_modules/dialogflow/src/v2/sessions_client.js:148:39
      at timeoutFunc (node_modules/google-gax/src/api_callable.ts:212:12)

[Xipotera]

Almost the same error when i try to interact with DialogFlow (set/get Intent/Entity), no problem on create SessionClient.

/usr/app/node_modules/grpc/src/client_interceptors.js:651
  var call = channel.createCall(path, deadline, host,
                     ^

TypeError: channel.createCall is not a function
    at getCall (/usr/app/node_modules/grpc/src/client_interceptors.js:651:22)
    at /usr/app/node_modules/grpc/src/client_interceptors.js:784:16
    at /usr/app/node_modules/grpc/src/client_interceptors.js:1381:14
    at _buildChain (/usr/app/node_modules/grpc/src/client_interceptors.js:1384:33)
    at Object.getInterceptingCall (/usr/app/node_modules/grpc/src/client_interceptors.js:1346:10)
    at ServiceClient.Client.makeUnaryRequest (/usr/app/node_modules/grpc/src/client.js:483:47)
    at apply (/usr/app/node_modules/lodash/lodash.js:478:17)
    at ServiceClient.wrapper (/usr/app/node_modules/lodash/lodash.js:5323:16)
    at /usr/app/node_modules/dialogflow/src/v2/intents_client.js:238:39
    at wrappedCall (/usr/app/node_modules/google-gax/build/src/paged_iteration.js:93:20)
    at timeoutFunc (/usr/app/node_modules/google-gax/build/src/api_callable.js:165:16)
    at repeat (/usr/app/node_modules/google-gax/build/src/api_callable.js:223:25)
    at Immediate.retryingFunc [as _onImmediate] (/usr/app/node_modules/google-gax/build/src/api_callable.js:250:13)
    at runCallback (timers.js:814:20)
    at tryOnImmediate (timers.js:768:5)
    at processImmediate [as _immediateCallback] (timers.js:745:5)

[dysnomia]

Could you please the paste exact version of all dependencies (in particular gRPC) from package-lock.json? I can't immediately repro. The error seems to come from gRPC internally: https://github.com/grpc/grpc-node/blob/master/packages/grpc-native-core/ext/call.cc#L582.

[Xipotera]

This is my complete package-lock.json.
Thanks for your help

{
  "name": "xxxxx",
  "version": "1.0.0",
  "lockfileVersion": 1,
  "requires": true,
  ....
}

[bdatdo0601]

@Xipotera I was running into the same problem you had. Fixed the issue by removing node_moodules and reinstall dependencies. Still not very sure what would cause this behavior

[zyf0330]

I run test about grpc, not in docker but on Linux, and I meet this problem. Like @bdatdo0601 said, remove node_modules and reinstall deps solves it.

[callmehiphop]

We've recently switched to a newer pure JavaScript implementation of gRPC, so I'd be curious to know if anyone is still experiencing this issue with the latest version.

[callmehiphop]

Doesn't seem to much activity here and I'm willing to wager its been solved with the move to grpc-js, so I'm going to close this out. If anyone continues to experience this issue, please let us know and we'll be happy to re-open and continue investigating. 😎