Websocket upgrade issue with 3rd party tools

[MIke Hawkes]

Hi

Has something changed on the inbound interfaces for this library? If I try to run your standard examples, and then CURL or use Insomnia to try and run a query, I'm getting a web socket upgrade failure and the call fails. This breaks even your example on the title page.

This code fails:

func ServerGraph() {
   server := &server{
      ...
   }
   schema := server.schema()
   introspection.AddIntrospectionToSchema(schema)

   http.Handle("/gql", graphql.Handler(schema))
   err := http.ListenAndServe(":3030", nil)
   if err != nil {
      log.Error(err)
   }
}

Dumping a websocket upgrade error when attempting to open the URL via CURL or tools such as Postman or Insomnia.

If, however, I wrap the call with a Gin handler - it works as normal:

package main

import (
"github.com/gin-gonic/gin"
"github.com/samsarahq/thunder/graphql/introspection"
"github.com/samsarahq/thunder/graphql/schemabuilder"

"github.com/samsarahq/thunder/graphql"
)

type GTest struct {
	Name string
}

func main() {
	d := &GTest{
		Name: "Mike",
	}

	s := d.schema()
	introspection.AddIntrospectionToSchema(s)

	a := gin.Default()
	a.POST("/gql", gin.WrapH(graphql.HTTPHandler(s)))

	a.Run(":3030")
}

func (s *GTest) schema() *graphql.Schema {
	b := schemabuilder.NewSchema()
	s.registerQuery(b)
	return b.MustBuild()
}

func (s *GTest) registerQuery(schema *schemabuilder.Schema) {
	obj := schema.Query()
	obj.FieldFunc("name", func() (*GTest, error) {
		return &GTest{Name:"Mike"}, nil
	})
}

[MIke Hawkes]

Sorry - missed the HTTPHandler in place of just Handler. Works correctly now ...