conservation-jade•2y ago

cors issue when using axios interceptors.

I am using axios for my api request and whenever I try to send the login request to API without using axios interceptors it work fine but when I add the interceptors it will have an cors error. Here is my code with axios interceptor:

const authAxios = axios.create();
authAxios.interceptors.request.use(
  // Here we can perform any function we'd like on the request
  (request: AxiosRequestConfig) => {
      if (request.headers) {
          // Set the Authorization header if it exists
          request.headers[
              "x-api-key"
          ] = API_KEY;
      } else {
          // Create the headers property if it does not exist
          request.headers = {
              "x-api-key": API_KEY,
          };
      }

      return request;
  },
);

const authAxios = axios.create();
authAxios.interceptors.request.use(
  // Here we can perform any function we'd like on the request
  (request: AxiosRequestConfig) => {
      if (request.headers) {
          // Set the Authorization header if it exists
          request.headers[
              "x-api-key"
          ] = API_KEY;
      } else {
          // Create the headers property if it does not exist
          request.headers = {
              "x-api-key": API_KEY,
          };
      }

      return request;
  },
);

And I am trying to use this axios instance in login as below

const response = await authAxios.post(`${API_BASE_URL}/login`, {phone_no, password});

const response = await authAxios.post(`${API_BASE_URL}/login`, {phone_no, password});

Whenever I remove the interceptors code block it works without any issue but whenever I add it back it doesn't work. I have also tried to user login request as below:

const response = await authAxios.post(
  `${API_BASE_URL}/login`,
  {phone_no, password},
  {
    headers: {
      'x-api-key': <API_KEY>
    }
  }
);

const response = await authAxios.post(
  `${API_BASE_URL}/login`,
  {phone_no, password},
  {
    headers: {
      'x-api-key': <API_KEY>
    }
  }
);

But results in the same issue.

5 Replies

ratty-blush•2y ago

When you remove the interceptors do you also remove x-api-key from the headers or do you append it as default or something? CORS might be triggered because Access-Control-Allow-Headers on the server does not include x-api-key 🤔

conservation-jade•2y ago

I am showing the alternative methods that I used without using the interceptors. Either I am using interceptors or the headers while request the axios call. Not both at the same time. But both method doesn't work. And BTW x-api-key is included in the server headers because the backend expects the api key in headers.

ratty-blush•2y ago

Can you share the error if its logged in to the console?

conservation-jade•2y ago

You were right @aliemirs my server was not accepting x-api-key as a preflight headers. Thank you for you help.

ratty-blush•2y ago

Glad to hear issue is identified (and hopefully resolved) 🙏 Have a nice day! 👋