Created response structs and a json response util.

internal/web/utils.go

@@ -2,9 +2,25 @@ package web
 
 import (
 	"context"
+	"encoding/json"
+	"log"
+	"net/http"
 	"strconv"
 )
 
+// Server will respond with an expected struct of information.
+// Otherwise will return the correct error status code.
+// Client responsibility to check status then unmarshal to
+// error response or data
+func WriteJSON[T any](w http.ResponseWriter, status int, data T) {
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(status)
+
+	if err := json.NewEncoder(w).Encode(data); err != nil {
+		log.Printf("JSON encode error %v", err)
+	}
+}
+
 func userIDFromContext(ctx context.Context) (int64, bool) {
 	val := ctx.Value(userIDKey)
 	if val == nil {