Fetch API

The Fetch API can be used to send HTTP requests in JS. The use of fetch() in the "Side Service" can be found in Fetch API - MDN.

When called by passing in a URL address string, it is a GET request.

const url = 'https://xxx.com/api/xxx'
const { body: { data = {} } = {} } = await fetch(url)

When more request parameters need to be passed, the behavior differs from the standard Fetch API in that all parameters are in a single object and only the url, method, headers, and body attributes are supported.

const res = await fetch({
  url: 'https://xxx.com/api/xxx',
  method: 'POST',
  headers: {
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    text: 'Hello Zepp OS'
  })
})

const data = typeof res.body === 'string' ?  JSON.parse(res.body) : res.body

caution

Due to the compatibility of the models, res.body on some models is a string of JSON. It is suggested that developers should add compatibility judgment when processing the returned data.

const data = typeof res.body === 'string' ? JSON.parse(res.body) : res.body

tip

For a sample of the Fetch API used in an Mini Program, see FetchAPI.