artflutter/graphql_flutter_bloc

BLOC wrapper over `graphql_flutter` streams with improved state handling.

graphql_flutter_bloc

BLOC wrapper over graphql_flutter streams with improved state handling.

Installation

• use v0.3.* for graphql_flutter v3 - this version is not supported anymore
• use v > 0.4.* for graphql_flutter v4

How to use

Clone this repo and launch the example project. It will help you to understand how to use this lib for Query and Mutation.

graphql_flutter_bloc's Issues

How to use graphql-yoga server in this project

Since this project demonstrates bloc subscriptions, could you include in the readme how to set up and use graphql-yoga?

It's new to me how graphql-faker makes it so easy to mock up a local graphql schema but I believe that its server does not support subscriptions, which is why you included the subscription_server folder in the project, but is there a way to create a fake schema for the graphql-yoga server or even use the same fake.schema?

Issue when refetching.

When trying to refetch the data after the page gets disposed and initialized again, it throws an error.

[VERBOSE-2:ui_dart_state.cc(209)] Unhandled Exception: Unhandled error Exception: Query is not refetch safe occurred in Instance of 'PostsBloc'.
#0      ObservableQuery.refetch
#1      QueryBloc._refetch
<asynchronous suspension>
#0      BlocBase.onError.<anonymous closure>
#1      BlocBase.onError
#2      _rootRunBinary (dart:async/zone.dart:1452:47)
#3      _CustomZone.runBinary (dart:async/zone.dart:1342:19)
#4      _CustomZone.runBinaryGuarded (dart:async/zone.dart:1252:7)
#5      _BufferingStreamSubscription._sendError.sendError (dart:async/stream_impl.dart:360:15)
#6      _BufferingStreamSubscription._sendError (dart:async/stream_impl.dart:378:7)
#7      _BufferingStreamSubscription._addError (dart:async/stream_impl.dart:280:7)
#8      _SyncBroadcastStreamController._sendError.<anonymous closure> (dart:async/broadcast_stream_controller.dart:393:20)
#9      _BroadcastStreamController._forEachListener (dart:async/broadcast_stream_controller.dart:323:15)
#10     _SyncBroadcastStreamController._sendError (dart:async/broadcast_stream_controller.dart:392:5)
#11     _BroadcastStreamController._addError (dart:async/broadcast_stream_controller.dart:290:5)
#12     _rootRunBinary (dart:async/zone.dart:1452:47)
#13     _CustomZone.runBinary (dart:async/zone.dart:1342:19)
#14     _CustomZone.runBinaryGuarded (dart:async/zone.dart:1252:7)
#15     _BufferingStreamSubscription._sendError.sendError (dart:async/stream_impl.dart:360:15)
#16     _BufferingStreamSubscription._sendError (dart:async/stream_impl.dart:378:7)
#17     _BufferingStreamSubscription._addError (dart:async/stream_impl.dart:280:7)
#18     _ForwardingStreamSubscription._addError (dart:async/stream_pipe.dart:128:11)
#19     _ForwardingStream._handleError (dart:async/stream_pipe.dart:95:10)
#20     _ForwardingStreamSubscription._handleError (dart:async/stream_pipe.dart:157:13)
#21     _rootRunBinary (dart:async/zone.dart:1452:47)
#22     _CustomZone.runBinary (dart:async/zone.dart:1342:19)
#23     _CustomZone.runBinaryGuarded (dart:async/zone.dart:1252:7)
#24     _BufferingStreamSubscription._sendError.sendError (dart:async/stream_impl.dart:360:15)
#25     _BufferingStreamSubscription._sendError (dart:async/stream_impl.dart:378:7)
#26     _DelayedError.perform (dart:async/stream_impl.dart:602:14)
#27     _StreamImplEvents.handleNext (dart:async/stream_impl.dart:706:11)
#28     _PendingEvents.schedule.<anonymous closure> (dart:async/stream_impl.dart:663:7)
#29     _rootRun (dart:async/zone.dart:1420:47)
#30     _CustomZone.run (dart:async/zone.dart:1328:19)
#31     _CustomZone.runGuarded (dart:async/zone.dart:1236:7)
#32     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1276:23)
#33     _rootRun (dart:async/zone.dart:1428:13)
#34     _CustomZone.run (dart:async/zone.dart:1328:19)
#35     _CustomZone.runGuarded (dart:async/zone.dart:1236:7)
#36     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1276:23)
#37     _microtaskLoop (dart:async/schedule_microtask.dart:40:21)
#38     _startMicrotaskLoop (dart:async/schedule_microtask.dart:49:5)

And it directs me to this;

 /// Attempts to refetch _on the network_, throwing error if not refetch safe
  ///
  /// **NOTE:** overrides any present non-network-only [FetchPolicy],
  /// as refetching from the `cache` does not make sense.
  Future<QueryResult?> refetch() {
    if (isRefetchSafe) {
      addResult(QueryResult.loading(data: latestResult?.data));
      return queryManager.refetchQuery(queryId);
    }
    throw Exception('Query is not refetch safe');
  }

Note that this only happens once I go into a different page and the Posts Page gets disposed.. When I return back to the Posts Page, even tho it initialize it again but the second time when trying to refetch it throws the error above.
I've tried to change the FetchPolicy to FetchPolicy.networkOnly but nothing changes.

Best regards.

How to generate q.schema.graphql / models/graphql ?

I wanted to combine graphql_flutter with flutter_bloc and found out that this repo is the way the developers of graphql_flutter recommend to use. But I have no idea how to generate some files seen in the example... I think I am missing something and since the documentation is not existing except for an example and obviously not many people have use the repo I ask for your help here:

How is https://github.com/artflutter/graphql_flutter_bloc/blob/master/example/graphql/q/q.schema.graphql generated? It says "# This file was generated based on ".graphqlconfig". Do not edit manually."

Same for all the files in https://github.com/artflutter/graphql_flutter_bloc/tree/master/example/lib/models/graphql where it says "// GENERATED CODE - DO NOT MODIFY BY HAND"

And another question: Is this repo active? I have not found any information of other people using it so far and I am a bit scared to recode a lot of parts of my app without being future proof.

Thanks for your response!

build error

I followed the instructions in README.md

At the last step flutter run gives me this build error.

any idea how I can solve it?

Thanks a lot for the awesome package.

Running Xcode build...
Xcode build done.
28.4s
Failed to build iOS app
Error output from Xcode build:
↳
    ** BUILD FAILED **


Xcode's output:
↳
    Writing result bundle at path:
    	/var/folders/j9/vgh6xy2d29b5hqw04ppdbxb40000gn/T/flutter_
    	tools.x5Kilp/flutter_ios_build_temp_dirfr32p0/temporary_x
    	cresult_bundle

    ../../../../../../flutter/.pub-cache/hosted/pub.dartlang.o
    rg/graphql-5.0.0/lib/src/core/query_manager.dart:427:23:
    Error: Required named parameter 'response' must be
    provided.
                  Response(data: cachedData),
                          ^
    ../../../../../../flutter/.pub-cache/hosted/pub.dartlang.o
    rg/gql_exec-0.3.2-alpha+1635885531651/lib/src/response.dar
    t:23:9: Context: Found this candidate, but the arguments
    don't match.
      const Response({
            ^^^^^^^^
    Failed to package
    /Users/zirho6/Documents/Projects/sideProjects/aq/flutter-a
    pps/graphql_flutter_bloc/example.
    Command PhaseScriptExecution failed with a nonzero exit
    code
    note: Using new build system
    note: Planning
    note: Build preparation complete
    note: Building targets in dependency order

    Result bundle written to path:
    	/var/folders/j9/vgh6xy2d29b5hqw04ppdbxb40000gn/T/flutter_
    	tools.x5Kilp/flutter_ios_build_temp_dirfr32p0/temporary_x
    	cresult_bundle


Could not build the application for the simulator.
Error launching application on iPhone 13.

example subscription service provides posts, example app expects companies.

The example server provides data about posts. The example app is attempting to retrieve company information. There is a huge mismatch here.

Update graphql to 5.1.0

Will there be an update for graphql version 5.1.0?

Thanks you for this awesome plugin!

update dependencies

I install google_fonts : ^6.0.0. But this package depends on http ^1.0.0, and your package depends on http ^0.13.5, so the installation failed. Can you update dependencies of your package? Thank you