mirror of https://github.com/dapr/go-sdk.git
74 lines
1.8 KiB
Go
74 lines
1.8 KiB
Go
package http
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import (
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"context"
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"net/http"
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"time"
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"github.com/dapr/go-sdk/service/common"
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)
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// NewService creates new Service.
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func NewService(address string) common.Service {
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return newServer(address, nil)
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}
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// NewServiceWithMux creates new Service with existing http mux.
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func NewServiceWithMux(address string, mux *http.ServeMux) common.Service {
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return newServer(address, mux)
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}
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func newServer(address string, mux *http.ServeMux) *Server {
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if mux == nil {
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mux = http.NewServeMux()
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}
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return &Server{
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address: address,
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httpServer: &http.Server{
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Addr: address,
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Handler: mux,
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},
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mux: mux,
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topicSubscriptions: make([]*common.Subscription, 0),
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}
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}
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// Server is the HTTP server wrapping mux many Dapr helpers.
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type Server struct {
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address string
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mux *http.ServeMux
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httpServer *http.Server
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topicSubscriptions []*common.Subscription
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}
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// Start starts the HTTP handler. Blocks while serving.
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func (s *Server) Start() error {
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s.registerSubscribeHandler()
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return s.httpServer.ListenAndServe()
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}
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// Stop stops previously started HTTP service with a five second timeout.
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func (s *Server) Stop() error {
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ctxShutDown, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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return s.httpServer.Shutdown(ctxShutDown)
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}
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func setOptions(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Access-Control-Allow-Origin", "*")
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w.Header().Set("Access-Control-Allow-Methods", "POST,OPTIONS")
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w.Header().Set("Access-Control-Allow-Headers", "authorization, origin, content-type, accept")
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w.Header().Set("Allow", "POST,OPTIONS")
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}
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func optionsHandler(h http.Handler) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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if r.Method == http.MethodOptions {
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setOptions(w, r)
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} else {
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h.ServeHTTP(w, r)
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}
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}
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}
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