No pubsub module applied for subscription

** Which Category is your question related to? **

PubSub among with API.

** What AWS Services are you utilizing? ** API with Cognito.

** Provide additional details e.g. code snippets ** I’m doing the configuration in this way:

Amplify.configure({
  Auth: {
    identityPoolId,
    region,
    userPoolId,
    userPoolWebClientId,
  },
  API: {
    graphql_endpoint: graphqlEndpoint,
    aws_appsync_region: region,
    aws_appsync_authenticationType: 'AMAZON_COGNITO_USER_POOLS',
    graphql_headers: graphqlHeaders,
  },
});

and I’m calling

const query = (
  `${userFragment}
  ${messageFragment}
  subscription MessageCreated($conversationId: ID!) {
    messageCreated(conversationId: $conversationId) {
      ...MessageFragment
    }
  }`
);
subscribe(query, { conversationId }, callback);

But at runtime I get this error

No pubsub module applied for subscription

I can’t find in the doc where it explains how to do the configuration with API.

Can you please help me?

[elorzafe]

@EgidioCaprino I have this app code working. ( I previously installed @aws-amplify/core @aws-amplify/pubsub @aws-amplify/api)

import React, { Component } from 'react';
import Amplify from '@aws-amplify/core';
import API from '@aws-amplify/api';
import _PubSub from '@aws-amplify/pubsub';
import _Auth from '@aws-amplify/auth';
import awsconfig from './aws-exports';
import { onCreateTodo } from './graphql/subscriptions'; 
Amplify.configure({
  Auth: {
    identityPoolId: awsconfig.aws_cognito_identity_pool_id,
    region: awsconfig.aws_cognito_region,
    userPoolId: awsconfig.aws_user_pools_id,
    userPoolWebClientId: awsconfig.aws_user_pools_web_client_id,
  },
  aws_appsync_graphqlEndpoint: awsconfig.aws_appsync_graphqlEndpoint,
  aws_appsync_region: awsconfig.aws_appsync_region,
  aws_appsync_authenticationType: awsconfig.aws_appsync_authenticationType,
});

class App extends Component {

  async componentDidMount(){
    API.graphql({query: onCreateTodo}).subscribe({
      next: console.log
    })
  }

  render() {
    return (
      <div className="App">
       Test
      </div>
    );
  }
}

export default App;

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