反应原生的axios post响应未定义

Question

I have used axios post to fetch the data in react-native but response is undefined. Sometimes it cant catch the error but it can be caused by my backend code.

I tried http and https but this didn't work or it doesnt working with or without header. Is there anyone to find the mistake on my code?

 axios
      .post(
        "http://192.168.1.34:3000/auth/",
        {
          email: email,
          password: password
        },
        {
          headers: { "Content-Type": "application/json" }
        }
      )
      .then(response => {
        console.log(response);
        console.log(email);
      })
      .catch(error => {
        console.log("loginAction:", error);
      });

Answer 1

First thing I'd do is check CORS for your POST request.

Its often an overlooked issue and relatively easy to solve. Postman is good about setting correct headers and options. If it still doesn't work I would go through Postmans set up one by one and mimic the POST there..

Answer 2

Use an interceptor to return the response and sometimes you need to use http://10.0.2.2 instead of localhost

axios.interceptors.response.use((response) => {
    return response;
}, function (error) {
    return Promise.reject(error.response);
});