Multiple fields with same key in query params (axios request)?

Question

So the backend (not under my control) requires a query string like this:

http://example.com/?foo=5&foo=2&foo=11

But axios

Answer 1

In Axios request config, you can override params serialization and then use QS NPM module to serialize array with repeat mode

let params = { foo: [5, 2] }

axios.get('path/to/api/',{params}) // URL : https://path/to/api?foo[]=5&foo[]=2

let myAxios = axios.create({
    paramsSerializer: params => Qs.stringify(params, {arrayFormat: 'repeat'})
})
myAxios.get('path/to/api/',{params}) // URL : https://path/to/api?foo=5&foo=2