如何在axios中设置POST-Multipart/form-data的MIME类型？

Question

我需要使用MIME发送POST请求-多部分/表单数据

这是我对POST标题的默认配置：axios。默认值。标题。post['Content-Type']='multipart/formdata'

我希望默认的Content-Type应该是Multipart/form-dat，但是在chrome devols中我看到Content-Type： Application/json




Answer 1

你可以试试这个：

const data = new FormData();

data.append('action', 'ADD');
data.append('param', 0);
data.append('secondParam', 0);
data.append('file', new Blob(['test payload'], { type: 'text/csv' }));

axios.post('http://httpbin.org/post', data);

此代码正在使用FormData API

另一个选项是使用表单数据包：

const axios = require('axios');
const FormData = require('form-data');

const form = new FormData();
// Second argument  can take Buffer or Stream (lazily read during the request) too.
// Third argument is filename if you want to simulate a file upload. Otherwise omit.
form.append('field', 'a,b,c', 'blah.csv');
axios.post('http://example.org/endpoint', form, {
  headers: form.getHeaders(),
}).then(result => {
  // Handle result…
  console.log(result.data);
});