/
resolver.go
74 lines (68 loc) · 2.22 KB
/
resolver.go
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package gql
import (
"context"
"github.com/99designs/gqlgen/graphql/handler"
"github.com/99designs/gqlgen/graphql/handler/apollotracing"
"github.com/99designs/gqlgen/graphql/handler/extension"
"github.com/99designs/gqlgen/graphql/handler/lru"
"github.com/99designs/gqlgen/graphql/handler/transport"
"github.com/autom8ter/helmgate/gen/gql/go/generated"
helmgatepb "github.com/autom8ter/helmgate/gen/grpc/go"
"github.com/autom8ter/helmgate/internal/logger"
"github.com/gorilla/websocket"
"google.golang.org/grpc/metadata"
"net/http"
"time"
)
// This file will not be regenerated automatically.
//
// It serves as dependency injection for your app, add any dependencies you require here.
type Resolver struct {
logger *logger.Logger
client helmgatepb.HelmProxyServiceClient
}
func NewResolver(client helmgatepb.HelmProxyServiceClient, logger *logger.Logger) *Resolver {
return &Resolver{logger: logger, client: client}
}
func (r *Resolver) QueryHandler() http.Handler {
srv := handler.New(generated.NewExecutableSchema(generated.Config{
Resolvers: r,
Directives: generated.DirectiveRoot{},
Complexity: generated.ComplexityRoot{},
}))
srv.AddTransport(transport.Websocket{
Upgrader: websocket.Upgrader{
CheckOrigin: func(r *http.Request) bool {
return true
},
},
InitFunc: func(ctx context.Context, initPayload transport.InitPayload) (context.Context, error) {
auth := initPayload.Authorization()
ctx = metadata.AppendToOutgoingContext(ctx, "Authorization", auth)
return ctx, nil
},
KeepAlivePingInterval: 10 * time.Second,
})
srv.AddTransport(transport.Options{})
srv.AddTransport(transport.GET{})
srv.AddTransport(transport.POST{})
srv.AddTransport(transport.MultipartForm{})
srv.SetQueryCache(lru.New(1000))
srv.Use(extension.Introspection{})
srv.Use(&apollotracing.Tracer{})
srv.Use(extension.AutomaticPersistedQuery{
Cache: lru.New(100),
})
return r.authMiddleware(srv)
}
func (r *Resolver) authMiddleware(handler http.Handler) http.HandlerFunc {
return func(w http.ResponseWriter, req *http.Request) {
ctx := req.Context()
for k, arr := range req.Header {
if len(arr) > 0 {
ctx = metadata.AppendToOutgoingContext(ctx, k, arr[0])
}
}
handler.ServeHTTP(w, req.WithContext(ctx))
}
}