Panic "missing operation context" when body fails to parse on GetOperationContext with prometheus extension

[netixx]

What happened?

Panic during extension evaluation while when the body fails to parse.

What did you expect?

Normal error response

Minimal graphql.schema and models to reproduce

N/A

versions

• go run github.com/99designs/gqlgen version: v0.17.34
• go version: go version go1.20.7 linux/amd64

I get the following panic:

missing operation context

goroutine 119 [running]:
runtime/debug.Stack()
        /usr/local/go/src/runtime/debug/stack.go:24 +0x65
runtime/debug.PrintStack()
        /usr/local/go/src/runtime/debug/stack.go:16 +0x19
github.com/99designs/gqlgen/graphql.DefaultRecover({0x0?, 0x8?}, {0x1097a40?, 0x1414270?})
        /go/pkg/mod/github.com/99designs/[email protected]/graphql/recovery.go:17 +0x71
github.com/99designs/gqlgen/graphql/executor.(*Executor).PresentRecoveredError(0xc000260140, {0x142ef98, 0xc0005fea50}, {0x1097a40?, 0x1414270?})
        /go/pkg/mod/github.com/99designs/[email protected]/graphql/executor/executor.go:156 +0x46
github.com/99designs/gqlgen/graphql/handler.(*Server).ServeHTTP.func1()
        /go/pkg/mod/github.com/99designs/[email protected]/graphql/handler/server.go:104 +0x99
panic({0x1097a40, 0x1414270})
        /usr/local/go/src/runtime/panic.go:884 +0x212
github.com/99designs/gqlgen/graphql.GetOperationContext({0x142ef98?, 0xc0005feab0?})
        /go/pkg/mod/github.com/99designs/[email protected]/graphql/context_operation.go:65 +0x71
github.com/99designs/gqlgen-contrib/prometheus.Tracer.InterceptResponse({}, {0x142ef98, 0xc0005feab0}, 0xc0002af128)
        /go/pkg/mod/github.com/99designs/[email protected]/prometheus/prometheus.go:129 +0x45
github.com/99designs/gqlgen/graphql/executor.processExtensions.func6({0x142ef98, 0xc0005feab0}, 0x12db030)
        /go/pkg/mod/github.com/99designs/[email protected]/graphql/executor/extensions.go:91 +0xb0
github.com/99designs/gqlgen/graphql/executor.processExtensions.func6.1({0x142ef98?, 0xc0005feab0?})
        /go/pkg/mod/github.com/99designs/[email protected]/graphql/executor/extensions.go:92 +0x2b
github.com/ravilushqa/otelgqlgen.Tracer.InterceptResponse({{0x0, 0x0}, {0x1422560, 0xc0000a99c0}, 0x12dbc30, 0x12dbc28}, {0x142ef98, 0xc0005feab0}, 0xc0002af110)
        /go/pkg/mod/github.com/ravilushqa/[email protected]/gqlgen.go:63 +0x879
github.com/99designs/gqlgen/graphql/executor.processExtensions.func6({0x142ef98, 0xc0005feab0}, 0x12db030)
        /go/pkg/mod/github.com/99designs/[email protected]/graphql/executor/extensions.go:91 +0xb0
github.com/99designs/gqlgen/graphql/executor.(*Executor).DispatchError(0xc000260140, {0x142ef98, 0xc0005fea50}, {0xc0000125a8, 0x1, 0xc0005fea80?})
        /go/pkg/mod/github.com/99designs/[email protected]/graphql/executor/executor.go:144 +0x11c
github.com/99designs/gqlgen/graphql/handler/transport.POST.Do({0x142eef0?}, {0x7ff796a4ed40?, 0xc000107200}, 0xc000107900, {0x142b830, 0xc000260140})
        /go/pkg/mod/github.com/99designs/[email protected]/graphql/handler/transport/http_post.go:76 +0x6b0
github.com/99designs/gqlgen/graphql/handler.(*Server).ServeHTTP(0xc00007c6c0, {0x7ff796a4ed40, 0xc000107200}, 0xc000107900)
        /go/pkg/mod/github.com/99designs/[email protected]/graphql/handler/server.go:121 +0x212
...
github.com/gin-gonic/gin.(*Context).Next(...)
        /go/pkg/mod/github.com/gin-gonic/[email protected]/context.go:174
github.com/gin-gonic/gin.(*Engine).handleHTTPRequest(0xc000007860, 0xc000107200)
        /go/pkg/mod/github.com/gin-gonic/[email protected]/gin.go:620 +0x671
github.com/gin-gonic/gin.(*Engine).ServeHTTP(0xc000007860, {0x142df00?, 0xc000158fc0}, 0xc000107800)
        /go/pkg/mod/github.com/gin-gonic/[email protected]/gin.go:576 +0x1dd
net/http.serverHandler.ServeHTTP({0x1429db0?}, {0x142df00, 0xc000158fc0}, 0xc000107800)
        /usr/local/go/src/net/http/server.go:2947 +0x30c
net/http.(*conn).serve(0xc000260f00, {0x142ef98, 0xc0001b3980})
        /usr/local/go/src/net/http/server.go:1991 +0x607
created by net/http.(*Server).Serve
        /usr/local/go/src/net/http/server.go:3102 +0x4db

When the body fails to parse and i use the gqlgen-contrib/prmetheus extension:

import gqlprom "github.com/99designs/gqlgen-contrib/prometheus"
graphqlHandler.Use(gqlprom.Tracer{})

I see that there is a WithOperationContext on line 84

		resp := exec.DispatchError(graphql.WithOperationContext(ctx, rc), OpErr)

but not on line 76, so maybe all error cases are not covered (maybe related to https://github.com/99designs/gqlgen/issues/1067) ?