grpc/grpc-dart

Issues somebody may already be working on are listed last. List everything by date

• TLS 1.3 client-certificate rejection is lost: call hangs until deadline or fails with "Connection is being forcefully terminated" instead of a TLS error

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  Difficulty 4/5 3-5 days Newbie friendliness 52/100

  grpc/grpc-dart#841 · 1 comment · Opened Sep 27, 2026

• ClientKeepAlive stops sending pings forever after the transport goes idle while a ping timer is pending (permitWithoutCalls: false)

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  Difficulty 2/5 1-3 hours Newbie friendliness 88/100

  grpc/grpc-dart#840 · Opened Sep 26, 2026

• After an event-loop stall, "Bad state: Cannot add event after closing" in ServerHandler._onDataActive; server can permanently stop serving new connections (accepts TCP, never completes gRPC)

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  grpc/grpc-dart#836 · Opened Aug 15, 2026

• ClientChannel permanently fails all calls with UNAVAILABLE "Error connecting: Connection shutting down." — connection stuck in shutdown state is never discarded

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  Difficulty 4/5 3-5 days Newbie friendliness 55/100

  grpc/grpc-dart#835 · Opened Aug 15, 2026

• Piggyback END_STREAM on the request DATA frame for unary RPCs

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  Difficulty 5/5 Over a week Newbie friendliness 45/100

  grpc/grpc-dart#834 · Opened Aug 10, 2026

• Add WebTransport support in addition to gRPC-web for Web support

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  Difficulty 5/5 Over a week Newbie friendliness 35/100

  grpc/grpc-dart#825 · 3 comments · 10 reactions · Opened Mar 7, 2026

• Support grpc web alongside regular grpc on the same server

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  grpc/grpc-dart#824 · 3 reactions · Opened Feb 19, 2026

• how to use custom codec?

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  Difficulty 4/5 3-5 days Newbie friendliness 30/100

  grpc/grpc-dart#823 · Opened Feb 5, 2026

• Client-initiated GOAWAY closes active server-streaming; grpc-dart then surfaces UNKNOWN (HTTP/2 errorCode: 10)

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  Difficulty 4/5 3-5 days Newbie friendliness 32/100

  grpc/grpc-dart#802 · 1 comment · Opened Sep 21, 2025

• provide Interceptor examples

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  Difficulty 3/5 1-2 days Newbie friendliness 45/100

  grpc/grpc-dart#798 · 3 reactions · Opened Aug 12, 2025

• bi-directional streaming rpc call does not make a connect when It is a first call

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  Difficulty 3/5 1-2 days Newbie friendliness 32/100

  grpc/grpc-dart#796 · Opened Jun 26, 2025

• gRPC Server's Connection Management

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  Difficulty 4/5 3-5 days Newbie friendliness 30/100

  grpc/grpc-dart#794 · Opened Jun 23, 2025

• Why does the documentation advertise compatibility with Dart native only, and not web?

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  Difficulty 2/5 1-3 hours Newbie friendliness 48/100

  grpc/grpc-dart#780 · 1 comment · Opened May 18, 2025

• Add exception to null connection

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  Difficulty 3/5 1-2 days Newbie friendliness 25/100

  grpc/grpc-dart#779 · Opened May 12, 2025

• Secure connection unknown failure

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  grpc/grpc-dart#778 · 1 comment · Opened May 7, 2025

• Connection multiplexer reuse

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  grpc/grpc-dart#767 · Opened Mar 17, 2025

• dart call c# using gRPC

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  grpc/grpc-dart#759 · Opened Feb 17, 2025

• Feature Request: Allow an option to set client socket `sourceAddress` via ChannelOptions

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  Difficulty 2/5 1-3 hours Newbie friendliness 55/100

  grpc/grpc-dart#758 · 1 reaction · Opened Feb 5, 2025

• Bug: Active Streams Silently Killed after `connectionTimeout`

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  Difficulty 4/5 3-5 days Newbie friendliness 38/100

  grpc/grpc-dart#752 · 5 comments · Opened Dec 11, 2024

• How to catch errors with flutter grpc Interceptor

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  grpc/grpc-dart#745 · 2 comments · 2 reactions · Opened Nov 26, 2024

• [question] Access ClientCall from generated service client

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  Difficulty 5/5 Over a week Newbie friendliness 20/100

  grpc/grpc-dart#743 · Opened Oct 7, 2024

• KeepAlive Ping Error Handling

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  Difficulty 3/5 1-2 days Newbie friendliness 45/100

  grpc/grpc-dart#738 · 3 comments · Opened Sep 26, 2024

• lib/src/server/handlers.dart 's _customHeaders is reset to null, it should be reset to empty Map instead

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  Difficulty 1/5 Under an hour Newbie friendliness 55/100

  grpc/grpc-dart#736 · 8 comments · Opened Sep 19, 2024

• Exceptions thrown without stack traces

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  Difficulty 4/5 3-5 days Newbie friendliness 38/100

  grpc/grpc-dart#729 · 2 comments · Opened Aug 16, 2024

• Error connecting: Unsupported operation: Socket constructor (WASM)

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  grpc/grpc-dart#725 · 1 comment · 2 reactions · Opened Jul 18, 2024

• ClientChannel has no way to trigger a connection to the server if no RPC is being invoked

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  grpc/grpc-dart#723 · 5 comments · Opened Jul 15, 2024

• Streaming issue on web only

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  grpc/grpc-dart#717 · 4 comments · 1 reaction · Opened Jun 10, 2024

• Grpc connect to some site and fail on some

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  grpc/grpc-dart#716 · 4 comments · Opened May 23, 2024

• Question: How to implement a ClientInterceptor with async body

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  grpc/grpc-dart#710 · 5 reactions · Opened May 6, 2024

• Question: Best practice for using ClientChannel

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  Difficulty 5/5 Over a week Newbie friendliness 15/100

  grpc/grpc-dart#709 · 4 comments · 7 reactions · Opened May 3, 2024

• Is it possible to expose stream state to the app? It's vital for tracking http2 requests and make appropriate reconnect logic etc....

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  grpc/grpc-dart#706 · 19 comments · Opened Apr 29, 2024

• Replace `package:archive` use by `dart:io` and `DecompressionStream`

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  Difficulty 4/5 3-5 days Newbie friendliness 42/100

  grpc/grpc-dart#702 · 1 comment · Opened Apr 24, 2024

• Track some specific request using ClientCall

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  grpc/grpc-dart#700 · 3 comments · Opened Apr 19, 2024

• `timeline_test` failure on Windows.

  May be free again @mosuem claimed this 909 days ago, and no pull request is open. Open

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  grpc/grpc-dart#697 · 3 comments · 1 assignee · Opened Apr 3, 2024

• Reconnect logic

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  grpc/grpc-dart#691 · 7 comments · 7 reactions · Opened Feb 29, 2024

• Support .map() that returns ResponseStream instead of Stream

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  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  grpc/grpc-dart#689 · 6 comments · Opened Jan 31, 2024

• Repeated requests in a loop with a timeout. GRPC DEADLINE_EXCEEDED -> Next request HTTP/2 error: (errorCode: 1)

  May be free again @mosuem claimed this 982 days ago, and no pull request is open. Open

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  grpc/grpc-dart#688 · 5 comments · 1 reaction · 1 assignee · Opened Jan 18, 2024

• Server-side stream doesn't get cancelled

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  grpc/grpc-dart#660 · 3 comments · 1 reaction · Opened Aug 17, 2023

• MaxMessageLength

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  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  grpc/grpc-dart#659 · 7 comments · Opened Aug 17, 2023

• Provide access to set the http2 ClientSettings

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  grpc/grpc-dart#656 · 1 comment · Opened Aug 3, 2023

• protobuf lib in example still at v2

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  Difficulty 2/5 1-3 hours Newbie friendliness 45/100

  grpc/grpc-dart#654 · 1 comment · Opened Jul 20, 2023

• channel getConnection()

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  Difficulty 5/5 Over a week Newbie friendliness 20/100

  grpc/grpc-dart#652 · 1 reaction · Opened Jul 14, 2023

• channel.shutdown() depends on race condition?

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  grpc/grpc-dart#628 · Opened May 19, 2023

• Missing support for duplicate header keys containing different values

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  grpc/grpc-dart#627 · 5 comments · 3 reactions · Opened May 16, 2023

• Is there an equivalent of Java's BlockingStub?

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  Difficulty 5/5 Over a week Newbie friendliness 20/100

  grpc/grpc-dart#622 · Opened Apr 21, 2023

• onConnectionStateChanged is calling all the time when the GRPC server is unreachable

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  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  grpc/grpc-dart#618 · 2 reactions · Opened Apr 13, 2023

• gRPC WellKnownTypes packages

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  grpc/grpc-dart#614 · 6 reactions · Opened Mar 31, 2023

• grpc(tls) not work in linux, when linux has system proxy

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  grpc/grpc-dart#607 · Opened Feb 28, 2023

• External gRPC

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  grpc/grpc-dart#597 · 7 comments · Opened Dec 28, 2022

• Surprising behavior possible due to lower-case metadata keys

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  Difficulty 5/5 Over a week Newbie friendliness 30/100

  grpc/grpc-dart#594 · 3 comments · 3 reactions · Opened Dec 18, 2022