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transport.go
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transport.go
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package dashboard
import (
"encoding/json"
"net/http"
kitlog "github.com/go-kit/kit/log"
httptransport "github.com/go-kit/kit/transport/http"
kithttp "github.com/go-kit/kit/transport/http"
"github.com/gorilla/mux"
"golang.org/x/net/context"
)
func MakeHandler(ctx context.Context, svc DashboardService, logger kitlog.Logger) http.Handler {
options := []httptransport.ServerOption{
httptransport.ServerErrorLogger(logger),
httptransport.ServerErrorEncoder(encodeError),
}
renderDashboardHandler := kithttp.NewServer(
ctx,
makePagesEndpoint(svc),
decodeNoParamsRequest,
encodeResponse,
options...,
)
unregisteredWidgetsHandler := kithttp.NewServer(
ctx,
makeUnregisteredWidgetsEndpoint(svc),
decodeNoParamsRequest,
encodeResponse,
options...,
)
widgetRegisterHandler := kithttp.NewServer(
ctx,
makeRegisterWidgetEndpoint(svc),
decodeRegisterWidgetRequest,
encodeResponse,
options...,
)
widgetRegisterToPageHandler := kithttp.NewServer(
ctx,
makeRegisterWidgetToPageEndpoint(svc),
decodeRegisterWidgetToPageRequest,
encodeResponse,
options...,
)
pageInsertHandler := kithttp.NewServer(
ctx,
makeInsertPageEndpoint(svc),
decodeInsertPageRequest,
encodeResponse,
options...,
)
r := mux.NewRouter()
r.Handle("/dashboard/v1/pages",
renderDashboardHandler).Methods("GET")
r.Handle("/dashboard/v1/register",
widgetRegisterHandler).Methods("POST")
r.Handle(`/dashboard/v1/register/{widgetId:\w+}/page/{pageId:\d+}`,
widgetRegisterToPageHandler).Methods("GET")
r.Handle("/dashboard/v1/pages/new",
pageInsertHandler).Methods("POST")
r.Handle("/dashboard/v1/widgets/unregistered",
unregisteredWidgetsHandler).Methods("GET")
return r
}
func encodeError(_ context.Context, err error, w http.ResponseWriter) {
if err == nil {
panic("encodeError with nil error")
}
w.Header().Set("Content-Type", "application/json; charset=utf-8")
json.NewEncoder(w).Encode(map[string]interface{}{
"error": err.Error(),
})
}