aws-mobile-appsync-sdk-js: Network error: Can't find on object (ROOT_QUERY) undefined

Error: Network error: Can't find **graphqlQueryName** on object (ROOT_QUERY) undefined.

It works most of the time but fails about 20% of the time.

this.hc().then(client => {
      return client.query({
        query: queryName
        fetchPolicy: network-only
      });
}).catch(err => {
      console.log('appsyncQuery err:', err);
});

this.hc().then(client => {
      const observable = client.watchQuery({
          query: queryName
          fetchPolicy: network-only
      });

      return observable.result();
}).catch(err => {
      console.log('appsyncQuery err:', err);
});

I set up appsync.service similar to this example https://github.com/aws-samples/aws-mobile-appsync-chat-starter-angular/blob/master/src/app/chat-app/appsync.service.ts

private newClient(session) {
    return new AWSAppSyncClient({
      url: appSyncConfig.graphqlEndpoint,
      region: appSyncConfig.region,
      auth: {
        type: appSyncConfig.authenticationType,
        jwtToken: session.idToken.jwtToken
      }
    }, {
      defaultOptions: {
        watchQuery: {
          fetchPolicy: 'network-only',
        }
      }
    });
  }

using “aws-appsync”: “^1.0.15”,

About this issue

Original URL
State: open
Created 6 years ago
Reactions: 6
Comments: 29 (4 by maintainers)

Most upvoted comments

seeing this issue 100% of the time with AppSync in nodeJS, - https://aws-amplify.github.io/docs/js/api#aws-appsync-sdk.

setting disableOffline to true just makes the program hang.

krsnaa on Aug 9, 2019

We are

@smakman thanks - this fixed it for me as well. However I would like to be able to use the offline capabilities in Safari Mobile, since this was one of the deciding factors in choosing AWS AppSync.

Same here, key capability for our app. Is there any current activity on this issue?

ericlink on Mar 7, 2019

I’m having the exact same issue as @eightbits-us in Safari Mobile. Setting disableOffline was the only thing that worked for me too.

smakman on May 11, 2018

I doesn’t work even after hydrated. The only time this works for me is if I set the disableOffline option to true

ghost on May 10, 2018

How did you guys solve this issue without disabling offline?

AymericG on Mar 11, 2020

This issue seems to be related to inconsistencies with state.offline.online in redux-offline. The following code from /src/link/offline-link.ts sometimes incorrectly reports offline when my application is initially loaded:

const { offline: { online } } = this.store.getState();

Unfortunately, waiting for the store to be hydrated does not solve the issue. We will need to disable offline in our application until this bug has been resolved.

brandomorrill on Mar 11, 2019

@smakman thanks - this fixed it for me as well. However I would like to be able to use the offline capabilities in Safari Mobile, since this was one of the deciding factors in choosing AWS AppSync.

mellson on Jun 11, 2018

Traced the first issue (of unknown total issues) to be caused by store.ts, which uses @redux-offline/redux-offline’s default detectNetwork function, which tries to register windows event (https://github.com/redux-offline/redux-offline/blob/9e84f38be0720a069d47487eb0717b00ada11843/src/defaults/detectNetwork.js) - this causes the link to always use offline strategy (even at initialization)

There’s an example in redux-offline’s issue log that shows an example for how the detectNetwork function can be modified for Node.js (or web workers) https://github.com/piranna/redux-offline-Node.js-PoC/blob/master/index.js Most likely need to modify store.ts’s createStore function that initializes offline with the detectNetwork function described above…

I think there are still more of these similar situation needing to be flushed out, but @mikeRChambers610 's solution looks a lot more flexible and promising than patching on this project (thanks for that!). Just leaving the info here for anyone interested in continuing this path 😃

vendexis-stan on Aug 21, 2020

@Jun711 The sample has been archived, are you still looking for a sample with this?

sammartinez on Apr 14, 2020

I updated all of the dependencies to the versions least likely to break the build and that seems to have fixed this specific problem: https://github.com/awslabs/aws-mobile-appsync-sdk-js/compare/master...XLNT:master lmk if that works for you as well, @danielbayerlein

shrugs on Aug 4, 2019