axios post request to send form data
Solution 1
You can post axios data by using FormData() like:
var bodyFormData = new FormData();
And then add the fields to the form you want to send:
bodyFormData.append('userName', 'Fred');
If you are uploading images, you may want to use .append
bodyFormData.append('image', imageFile);
And then you can use axios post method (You can amend it accordingly)
axios({
method: "post",
url: "myurl",
data: bodyFormData,
headers: { "Content-Type": "multipart/form-data" },
})
.then(function (response) {
//handle success
console.log(response);
})
.catch(function (response) {
//handle error
console.log(response);
});
Related GitHub issue:
Can't get a .post with 'Content-Type': 'multipart/form-data' to work @ axios/axios
Solution 2
In my case I had to add the boundary to the header like the following:
const form = new FormData();
form.append(item.name, fs.createReadStream(pathToFile));
const response = await axios({
method: 'post',
url: 'http://www.yourserver.com/upload',
data: form,
headers: {
'Content-Type': `multipart/form-data; boundary=${form._boundary}`,
},
});
This solution is also useful if you're working with React Native.
Solution 3
Check out querystring.
You can use it as follows:
var querystring = require('querystring');
axios.post('http://something.com/', querystring.stringify({ foo: 'bar' }));
Solution 4
Upload (multiple) binary files
Node.js
Things become complicated when you want to post files via multipart/form-data
, especially multiple binary files. Below is a working example:
const FormData = require('form-data')
const fs = require('fs')
const path = require('path')
const formData = new FormData()
formData.append('files[]', JSON.stringify({ to: [{ phoneNumber: process.env.RINGCENTRAL_RECEIVER }] }), 'test.json')
formData.append('files[]', fs.createReadStream(path.join(__dirname, 'test.png')), 'test.png')
await rc.post('/restapi/v1.0/account/~/extension/~/fax', formData, {
headers: formData.getHeaders()
})
- Instead of
headers: {'Content-Type': 'multipart/form-data' }
I preferheaders: formData.getHeaders()
- I use
async
andawait
above, you can change them to plain Promise statements if you don't like them - In order to add your own headers, you just
headers: { ...yourHeaders, ...formData.getHeaders() }
Newly added content below:
Browser
Browser's FormData
is different from the NPM package 'form-data'. The following code works for me in browser:
HTML:
<input type="file" id="image" accept="image/png"/>
JavaScript:
const formData = new FormData()
// add a non-binary file
formData.append('files[]', new Blob(['{"hello": "world"}'], { type: 'application/json' }), 'request.json')
// add a binary file
const element = document.getElementById('image')
const file = element.files[0]
formData.append('files[]', file, file.name)
await rc.post('/restapi/v1.0/account/~/extension/~/fax', formData)
Solution 5
2020 ES6 way of doing
Having the form in html I binded in data like so:
DATA:
form: {
name: 'Joan Cap de porc',
email: '[email protected]',
phone: 2323,
query: 'cap d\ou'
file: null,
legal: false
},
onSubmit:
async submitForm() {
const formData = new FormData()
Object.keys(this.form).forEach((key) => {
formData.append(key, this.form[key])
})
try {
await this.$axios.post('/ajax/contact/contact-us', formData)
this.$emit('formSent')
} catch (err) {
this.errors.push('form_error')
}
}
Comments
-
Srikanth Gowda almost 2 years
axios
POST
request is hitting the url on the controller but setting null values to my POJO class, when I go through developer tools in chrome, the payload contains data. What am I doing wrong?Axios POST Request:
var body = { userName: 'Fred', userEmail: '[email protected]' } axios({ method: 'post', url: '/addUser', data: body }) .then(function (response) { console.log(response); }) .catch(function (error) { console.log(error); });
Browser Response:
If I set headers as:
headers:{ Content-Type:'multipart/form-data' }
The request throws the error
Error in posting multipart/form-data. Content-Type header is missing boundary
If I make the same request in postman it's working fine and sets values to my POJO class.
Can anyone explain how to set boundary or how can I send form data using axios.