Improve WebSocket integration (#1191, #1022)

- consider `juniper_graphql_transport_ws` crate on CI
- implement auto-selection of protocol in `juniper_warp` crate
- support `graphql-transport-ws` protocol in  `juniper_actix` crate
- implement auto-selection of protocol in `juniper_actix` crate

Additionally:
- move `examples/warp_subscriptions` into `juniper_warp/examples/subscription.rs`
- move `examples/actix_subscriptions` into `juniper_actix/examples/subscription.rs`
- move `examples/basic_subscriptions` into `juniper_subscriptions/examples/basic.rs`
- bump up MSRV of `juniper_actix` crate to 1.68

.github/workflows/ci.yml

@@ -25,7 +25,6 @@ jobs:
     needs:
       - bench
       - clippy
-      - example
       - feature
       - msrv
       - release-check
@@ -84,32 +83,6 @@ jobs:
       - run: cargo clippy -p juniper_benchmarks --benches -- -D warnings
       - run: cargo bench -p juniper_benchmarks
 
-  example:
-    strategy:
-      fail-fast: false
-      matrix:
-        example:
-          - actix_subscriptions
-          - basic_subscriptions
-          - warp_async
-          - warp_subscriptions
-        os:
-          - ubuntu
-          - macOS
-          - windows
-        toolchain:
-          - stable
-          - beta
-          - nightly
-    runs-on: ${{ matrix.os }}-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@v1
-        with:
-          toolchain: ${{ matrix.toolchain }}
-
-      - run: cargo check -p example_${{ matrix.example }}
-
   feature:
     strategy:
       fail-fast: false
@@ -161,8 +134,9 @@ jobs:
           - juniper_codegen
           - juniper
           - juniper_subscriptions
+          - juniper_graphql_transport_ws
           - juniper_graphql_ws
-          - juniper_actix
+          #- juniper_actix
           - juniper_hyper
           #- juniper_iron
           - juniper_rocket
@@ -171,6 +145,10 @@ jobs:
           - ubuntu
           - macOS
           - windows
+        include:
+          - { msrv: "1.68.0", crate: "juniper_actix", os: "ubuntu" }
+          - { msrv: "1.68.0", crate: "juniper_actix", os: "macOS" }
+          - { msrv: "1.68.0", crate: "juniper_actix", os: "windows" }
     runs-on: ${{ matrix.os }}-latest
     steps:
       - uses: actions/checkout@v4
@@ -184,9 +162,6 @@ jobs:
       - run: cargo +nightly update -Z minimal-versions
 
       - run: make test.cargo crate=${{ matrix.crate }}
-        if: ${{ !contains(fromJSON('["juniper_actix"]'), matrix.crate) }}
-      - run: cargo check -p ${{ matrix.crate }} --all-features
-        if: ${{ contains(fromJSON('["juniper_actix"]'), matrix.crate) }}
 
   package:
     if: ${{ startsWith(github.ref, 'refs/tags/juniper') }}
@@ -214,6 +189,7 @@ jobs:
           - juniper_codegen
           - juniper
           - juniper_subscriptions
+          - juniper_graphql_transport_ws
           - juniper_graphql_ws
           - juniper_integration_tests
           - juniper_codegen_tests
@@ -342,6 +318,7 @@ jobs:
           - juniper_codegen
           - juniper
           - juniper_subscriptions
+          - juniper_graphql_transport_ws
           - juniper_graphql_ws
           - juniper_actix
           - juniper_hyper
@@ -366,7 +343,6 @@ jobs:
     needs:
       - bench
       - clippy
-      - example
       - feature
       - msrv
       - package

Cargo.toml

@@ -2,18 +2,14 @@
 resolver = "1" # unifying Cargo features asap for Book tests
 members = [
     "benches",
-    "examples/basic_subscriptions",
-    "examples/warp_async",
-    "examples/warp_subscriptions",
-    "examples/actix_subscriptions",
     "juniper_codegen",
     "juniper",
     "juniper_hyper",
     "juniper_iron",
     "juniper_rocket",
     "juniper_subscriptions",
-    "juniper_graphql_ws",
     "juniper_graphql_transport_ws",
+    "juniper_graphql_ws",
     "juniper_warp",
     "juniper_actix",
     "tests/codegen",

book/src/advanced/subscriptions.md

@@ -154,8 +154,8 @@ async fn run_subscription() {
 Currently there is an example of subscriptions with [warp][warp], but it still in an alpha state.
 GraphQL over [WS][WS] is not fully supported yet and is non-standard.
 
-- [Warp Subscription Example](https://github.com/graphql-rust/juniper/tree/master/examples/warp_subscriptions)
-- [Small Example](https://github.com/graphql-rust/juniper/tree/master/examples/basic_subscriptions)
+- [Warp Subscription Example](https://github.com/graphql-rust/juniper/tree/master/juniper_warp/examples/subscription.rs)
+- [Small Example](https://github.com/graphql-rust/juniper/tree/master/juniper_subscriptions/examples/basic.rs)
 
 
 

book/src/servers/warp.md

@@ -14,10 +14,11 @@ juniper = "0.16.0"
 juniper_warp = "0.8.0"
 ```
 
-Included in the source is a [small example][example] which sets up a basic GraphQL and [GraphiQL] handler.
+Included in the source is a [small example][example] which sets up a basic GraphQL and [GraphiQL]/[GraphQL Playground] handlers with subscriptions support.
 
-[graphiql]: https://github.com/graphql/graphiql
+[GraphiQL]: https://github.com/graphql/graphiql
+[GraphQL Playground]: https://github.com/prisma/graphql-playground
 [hyper]: https://hyper.rs/
 [warp]: https://crates.io/crates/warp
 [juniper_warp]: https://github.com/graphql-rust/juniper/tree/master/juniper_warp
-[example]: https://github.com/graphql-rust/juniper/blob/master/juniper_warp/examples/warp_server.rs
+[example]: https://github.com/graphql-rust/juniper/blob/master/juniper_warp/examples/subscription.rs