feat: whole bunch of shit

server/internal/httpx/error.go

@@ -0,0 +1,20 @@
+package httpx
+
+import (
+	"encoding/json"
+	"net/http"
+)
+
+type ErrorResponse struct {
+	Error string `json:"error"`
+}
+
+func WriteJSON(w http.ResponseWriter, code int, v any) {
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(code)
+	_ = json.NewEncoder(w).Encode(v)
+}
+
+func WriteError(w http.ResponseWriter, code int, err error) {
+	WriteJSON(w, code, ErrorResponse{Error: err.Error()})
+}

server/internal/httpx/router.go

@@ -0,0 +1,11 @@
+package httpx
+
+import "net/http"
+
+type Router struct{ mux *http.ServeMux }
+
+func NewRouter() *Router                                { return &Router{mux: http.NewServeMux()} }
+func (r *Router) Handle(pattern string, h http.Handler) { r.mux.Handle(pattern, h) }
+func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+	r.mux.ServeHTTP(w, req)
+}