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in Technique[技术] by (71.8m points)

javascript - Return fetch .json inside object.

I have an API calling function that I would like to return the response.json() content as well as the response.status together in a single object.

Like so:

  const getData = data => {
  return fetch('/api_endpoint',{
      method: 'GET',
      headers: {
          'Content-type': 'application/json'
      }
  })
  .then(response => {
        return { 
                  body: response.json(), 
                  status: response.status 
               }
    })
}

The trouble is that response.json() is a promise, so I can't pull it's value until it's resolved.

I can hack around it by doing this:

  const getData = data => {
  let statusRes = undefined;
  return fetch('/api_endpoint',{
      method: 'GET',
      headers: {
          'Content-type': 'application/json'
      }
  })
  .then(response => {
        statusRes = response.status;
        return response.json()
    })
  .then(data => {
      return {
          body: data,
          status: statusRes
      }
    }
  )
}

But it just feels WRONG. Anybody have a better idea?

See Question&Answers more detail:os

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by (71.8m points)
const getData = data => {
  return fetch('/api_endpoint',{
      method: 'GET',
      headers: {
          'Content-type': 'application/json'
      }
  })
  .then(async response => {
        return { 
                  body: await response.json(), 
                  status: response.status 
               }
    })
}

es6 async/await might help it look more clean


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