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ghostdogpr / caliban

Functional GraphQL library for Scala

Home Page:https://ghostdogpr.github.io/caliban/

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Error in client codegen by URL

DGolubets opened this issue · comments

commented

I got an error in the most recent version: 2.2.1

Exception when sending request: POST

Debugging showed that the actual error was:

EOF reached

It seems to originate in the latest version of STTP. When downgraded, everything works:

dependencyOverrides += "com.softwaremill.sttp.client3" %% "zio" % "3.8.15"
commented

You mean you downgraded the version you were depending on?
Caliban 2.1.1 itself is using sttp 3.8.15, it was upgraded to 3.8.16 only a few days ago (#1786).

commented

I was wrong about the version actually. The error is still there..
It's a brand new project I'm starting and these are all the dependencies I have:


libraryDependencies += "dev.zio" %% "zio" % "2.0.15"
libraryDependencies += "dev.zio" %% "zio-streams" % "2.0.15"
libraryDependencies += ("io.getquill" %% "quill-jdbc-zio" % "4.6.0.1")
  .exclude("com.lihaoyi", "geny_2.13")
libraryDependencies += ("org.postgresql" % "postgresql" % "42.3.1")

libraryDependencies += "com.github.ghostdogpr" %% "caliban" % "2.2.1"
libraryDependencies += "com.github.ghostdogpr" %% "caliban-zio-http" % "2.2.1"
libraryDependencies += "com.github.ghostdogpr" %% "caliban-client" % "2.2.1"

libraryDependencies ++= Seq(
  "dev.zio" %% "zio-test" % "2.0.15" % Test,
  "dev.zio" %% "zio-test-sbt" % "2.0.15" % Test,
  "dev.zio" %% "zio-test-magnolia" % "2.0.15" % Test
)
testFrameworks += new TestFramework("zio.test.sbt.ZTestFramework")

enablePlugins(CalibanPlugin)

Compile / caliban / calibanSettings += calibanSetting(
  url("http://my-service/api/graphql")
)(cs => cs.packageName("urbanmarkets.generated.image_service").clientName("GQL"))
commented

Since it's hard to debug what happens in the plugin, could you try directly running SchemaLoader.fromIntrospection(yourUrl, None).load and see what happens? Like where it fails exactly.

commented

Here is the output from running SchemaLoader:

[error] (Compile / run) Exception in thread "zio-fiber-4" sttp.client3.SttpClientException$ReadException: Exception when sending request: POST http://my-service/api/graphql
[error]         at sttp.client3.SttpClientExceptionExtensions.defaultExceptionToSttpClientException(SttpClientExceptionExtensions.scala:25)
[error]         at sttp.client3.SttpClientExceptionExtensions.defaultExceptionToSttpClientException$(SttpClientExceptionExtensions.scala:9)
[error]         at sttp.client3.SttpClientException$.defaultExceptionToSttpClientException(SttpClientException.scala:24)
[error]         at sttp.client3.HttpClientAsyncBackend.adjustExceptions$$anonfun$1(HttpClientAsyncBackend.scala:147)
[error]         at sttp.client3.SttpClientException$$anon$1.applyOrElse(SttpClientException.scala:35)
[error]         at sttp.client3.SttpClientException$$anon$1.applyOrElse(SttpClientException.scala:34)
[error]         at zio.ZIO.tryRescue$1$$anonfun$1(ZIO.scala:359)
[error]         at scala.util.Either.fold(Either.scala:190)
[error]         at zio.ZIO.tryRescue$1(ZIO.scala:359)
[error]         at zio.ZIO.catchSome$$anonfun$1(ZIO.scala:361)
[error]         at sttp.client3.impl.zio.RIOMonadAsyncError.error(RIOMonadAsyncError.scala:24)
[error]         at sttp.client3.impl.zio.RIOMonadAsyncError.flatMap(RIOMonadAsyncError.scala:12)
[error]         at caliban.tools.IntrospectionClient.sendRequest(IntrospectionClient.scala:30)
[error]         at caliban.tools.IntrospectionClient.introspect(IntrospectionClient.scala:27)
[error]         at caliban.tools.SchemaLoader.FromIntrospection.load(SchemaLoader.scala:33)
[error]         at urbanmarkets.timeslices.images.Program2.run(Program2.scala:21)
[error]         Suppressed: java.io.EOFException: EOF reached while reading
[error]                 at java.net.http/jdk.internal.net.http.Http2Connection$Http2TubeSubscriber.onComplete(Http2Connection.java:1371)
[error]                 at java.net.http/jdk.internal.net.http.SocketTube$InternalReadPublisher$ReadSubscription.signalCompletion(SocketTube.java:640)
[error]                 at java.net.http/jdk.internal.net.http.SocketTube$InternalReadPublisher$InternalReadSubscription.read(SocketTube.java:845)
[error]                 at java.net.http/jdk.internal.net.http.SocketTube$SocketFlowTask.run(SocketTube.java:181)
[error]                 at java.net.http/jdk.internal.net.http.common.SequentialScheduler$SchedulableTask.run(SequentialScheduler.java:230)
[error]                 at java.net.http/jdk.internal.net.http.common.SequentialScheduler.runOrSchedule(SequentialScheduler.java:303)
[error]                 at java.net.http/jdk.internal.net.http.common.SequentialScheduler.runOrSchedule(SequentialScheduler.java:256)
[error]                 at java.net.http/jdk.internal.net.http.SocketTube$InternalReadPublisher$InternalReadSubscription.signalReadable(SocketTube.java:774)
[error]                 at java.net.http/jdk.internal.net.http.SocketTube$InternalReadPublisher$ReadEvent.signalEvent(SocketTube.java:957)
[error]                 at java.net.http/jdk.internal.net.http.SocketTube$SocketFlowEvent.handle(SocketTube.java:253)
[error]                 at java.net.http/jdk.internal.net.http.HttpClientImpl$SelectorManager.handleEvent(HttpClientImpl.java:979)
[error]                 at java.net.http/jdk.internal.net.http.HttpClientImpl$SelectorManager.lambda$run$3(HttpClientImpl.java:934)
[error]                 at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
[error]                 at java.net.http/jdk.internal.net.http.HttpClientImpl$SelectorManager.run(HttpClientImpl.java:934)
commented

Hmm that doesn't seem to be an error related to Caliban, it's java http client directly that is unable to call that URL.

commented

You are right, that's the underlying HTTP client. It looks like it's using HTTP 2 by default.
Indeed when I do curl --http2 to that service I get:

curl: (92) HTTP/2 stream 1 was not closed cleanly before end of the underlying stream

This works:

IntrospectionClient
      .introspect("http://my-service/api/graphql", None)
      .provideLayer(AsyncHttpClientZioBackend.layer()) # notice I've replaced HttpClientZioBackend here with AsyncHttpClientZioBackend
      .flatMap { schema =>
        Console.printLine(schema)
      }

I still think this has to be fixed in Caliban, because there is no way to change the backend in the codegen plugin. Maybe you could add an option there?

commented

According to docs on java.net client that is used by this sttp backend: Requests sent to servers that do not yet support HTTP/2 will automatically be downgraded to HTTP/1.1.. I suspect the server is doing something weird. Is it a public URL?

commented

No, it's our internal address.
I've just investigated a bit more with our admin and we think the culprit is HAProxy, which we use for our VPN.
According to this: https://andreaskaris.github.io/blog/networking/haproxy-and-h2c/ it doesn't support the connection upgrade.

commented

Closing as I don't think we need to support this case.