Proper Way to Make API Fetch 'POST' with Async/Await

问题

I'm working on a project that requires me to make requests to an API. What is the proper form for making a POST request with Async/Await?

As an example, here is my fetch to get a list of all devices. How would I go about changing this request to POST to create a new device? I understand I would have to add a header with a data body.

getDevices = async () => {
  const location = window.location.hostname;
  const response = await fetch(
    `http://${location}:9000/api/sensors/`
  );
  const data = await response.json();
  if (response.status !== 200) throw Error(data.message);
  return data;
};

回答1:

actually your code can be improved like this:

to do a post just add the method on the settings of the fetch call.

getDevices = async () => {
    const location = window.location.hostname;
    const settings = {
        method: 'POST',
        headers: {
            Accept: 'application/json',
            'Content-Type': 'application/json',
        }
    };
    try {
        const fetchResponse = await fetch(`http://${location}:9000/api/sensors/`, settings);
        const data = await fetchResponse.json();
        return data;
    } catch (e) {
        return e;
    }    

}

回答2:

Here is an example with configuration:

try {
    const config = {
        method: 'POST',
        headers: {
            'Accept': 'application/json',
            'Content-Type': 'application/json',
        },
        body: JSON.stringify(data)
    }
    const response = await fetch(url, config)
    //const json = await response.json()
    if (response.ok) {
        //return json
        return response
    } else {
        //
    }
} catch (error) {
        //
}

回答3:

Remember to avoid to combine async/await and then here is an example:

const addDevice = async (device) => {
  const { hostname: location } = window.location;
  const settings = {
    method: 'POST',
    body: JSON.stringify(device),
    headers: {
      'Accept': 'application/json',
      'Content-Type': 'application/json',
    }
  }

  const response = await fetch(`http://${location}:9000/api/sensors/`, settings);
  if (!response.ok) throw Error(response.message);

  try {
    const data = await response.json();
    return data;
  } catch (err) {
    throw err;
  }
};

来源：https://stackoverflow.com/questions/50046841/proper-way-to-make-api-fetch-post-with-async-await

标签

javascript

reactjs

post

fetch