add: user auth accomplished

app/users/api/internal/contextx/contextx.go

@@ -0,0 +1,30 @@
+package contextx
+
+import (
+	"context"
+	"errors"
+)
+
+func WithRequestId(c context.Context, requestId string) context.Context {
+	return context.WithValue(c, "request_id", requestId)
+}
+
+func RequestIdFrom(c context.Context) (string, error) {
+	requestID, ok := c.Value("request_id").(string)
+	if !ok {
+		return "", errors.New("request_id not found in context")
+	}
+	return requestID, nil
+}
+
+func WithToken(c context.Context, token string) context.Context {
+	return context.WithValue(c, "token", token)
+}
+
+func TokenFrom(c context.Context) (string, error) {
+	token, ok := c.Value("token").(string)
+	if !ok {
+		return "", errors.New("token not found in context")
+	}
+	return token, nil
+}