mint - enable cors

elnosh · Jul 1, 2024 · e8f5e4e · e8f5e4e
1 parent 31f5235
commit e8f5e4e
Showing 1 changed file with 29 additions and 13 deletions.
diff --git a/mint/server.go b/mint/server.go
@@ -81,17 +81,19 @@ func (ms *MintServer) LogInfo(format string, v ...any) {
 func (ms *MintServer) setupHttpServer(port string) {
  r := mux.NewRouter()
 
- r.HandleFunc("/v1/keys", ms.getActiveKeysets).Methods(http.MethodGet)
- r.HandleFunc("/v1/keysets", ms.getKeysetsList).Methods(http.MethodGet)
- r.HandleFunc("/v1/keys/{id}", ms.getKeysetById).Methods(http.MethodGet)
- r.HandleFunc("/v1/mint/quote/{method}", ms.mintRequest).Methods(http.MethodPost)
- r.HandleFunc("/v1/mint/quote/{method}/{quote_id}", ms.mintQuoteState).Methods(http.MethodGet)
- r.HandleFunc("/v1/mint/{method}", ms.mintTokensRequest).Methods(http.MethodPost)
- r.HandleFunc("/v1/swap", ms.swapRequest).Methods(http.MethodPost)
- r.HandleFunc("/v1/melt/quote/{method}", ms.meltQuoteRequest).Methods(http.MethodPost)
- r.HandleFunc("/v1/melt/quote/{method}/{quote_id}", ms.meltQuoteState).Methods(http.MethodGet)
- r.HandleFunc("/v1/melt/{method}", ms.meltTokens).Methods(http.MethodPost)
- r.HandleFunc("/v1/info", ms.mintInfo).Methods(http.MethodGet)
+ r.HandleFunc("/v1/keys", ms.getActiveKeysets).Methods(http.MethodGet, http.MethodOptions)
+ r.HandleFunc("/v1/keysets", ms.getKeysetsList).Methods(http.MethodGet, http.MethodOptions)
+ r.HandleFunc("/v1/keys/{id}", ms.getKeysetById).Methods(http.MethodGet, http.MethodOptions)
+ r.HandleFunc("/v1/mint/quote/{method}", ms.mintRequest).Methods(http.MethodGet, http.MethodPost, http.MethodOptions)
+ r.HandleFunc("/v1/mint/quote/{method}/{quote_id}", ms.mintQuoteState).Methods(http.MethodGet, http.MethodPost, http.MethodOptions)
+ r.HandleFunc("/v1/mint/{method}", ms.mintTokensRequest).Methods(http.MethodPost, http.MethodOptions)
+ r.HandleFunc("/v1/swap", ms.swapRequest).Methods(http.MethodPost, http.MethodOptions)
+ r.HandleFunc("/v1/melt/quote/{method}", ms.meltQuoteRequest).Methods(http.MethodPost, http.MethodOptions)
+ r.HandleFunc("/v1/melt/quote/{method}/{quote_id}", ms.meltQuoteState).Methods(http.MethodGet, http.MethodOptions)
+ r.HandleFunc("/v1/melt/{method}", ms.meltTokens).Methods(http.MethodPost, http.MethodOptions)
+ r.HandleFunc("/v1/info", ms.mintInfo).Methods(http.MethodGet, http.MethodOptions)
+
+ r.Use(setupHeaders)
 
  if len(port) == 0 {
  port = "3338"
@@ -104,6 +106,22 @@ func (ms *MintServer) setupHttpServer(port string) {
  ms.httpServer = server
 }
 
+func setupHeaders(next http.Handler) http.Handler {
+ return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
+ rw.Header().Set("Content-Type", "application/json")
+ rw.Header().Set("Access-Control-Allow-Origin", "*")
+ rw.Header().Set("Access-Control-Allow-Credentials", "true")
+ rw.Header().Set("Access-Control-Allow-Methods", "GET, POST, OPTIONS")
+ rw.Header().Set("Access-Control-Allow-Headers", "Content-Type, Content-Length, origin")
+
+ if req.Method == http.MethodOptions {
+ return
+ }
+
+ next.ServeHTTP(rw, req)
+ })
+}
+
 func (ms *MintServer) writeResponse(
  rw http.ResponseWriter,
  req *http.Request,
@@ -113,7 +131,6 @@ func (ms *MintServer) writeResponse(
  ms.logger.Info(logmsg, slog.Group("request", slog.String("method", req.Method),
  slog.String("url", req.URL.String()), slog.Int("code", http.StatusOK)))
 
- rw.Header().Set("Content-Type", "application/json")
  rw.Write(response)
 }
 
@@ -129,7 +146,6 @@ func (ms *MintServer) writeErr(rw http.ResponseWriter, req *http.Request, errRes
  ms.logger.Error(log, slog.Group("request", slog.String("method", req.Method),
  slog.String("url", req.URL.String()), slog.Int("code", code)))
 
- rw.Header().Set("Content-Type", "application/json")
  rw.WriteHeader(code)
  errRes, _ := json.Marshal(errResponse)
  rw.Write(errRes)