如何使用Async Await使用Google Maps Node API

Question

The following is example taken from the Google Maps node module

function doSomeGeoCode() {

  const googleMapsClient = require('@google/maps').createClient({
    key: 'your API key here',
    Promise: Promise
  });

  googleMapsClient.geocode({address: '1600 Amphitheatre Parkway, Mountain 
   View, CA'})
  .asPromise()
  .then((response) => {
    console.log(response.json.results);
  })
  .catch((err) => {
    console.log(err);
  });
}

如何使用async和await调用doSomeGeoCode。同样，一旦收到响应，我就需要调用另一个函数。请建议

Answer 1

您只需要返回承诺googleMapsClient并创建另一个方法来等待响应，例如：

function doSomeGeoCode() {
  const googleMapsClient = require('@google/maps').createClient({
    key: 'your API key here',
    Promise: Promise,
  });

  // Return the promise
  return googleMapsClient.geocode({
      address: '1600 Amphitheater Parkway, Mountain View,CA ',
    })
    .asPromise();
}

async function myTest() {
  try {
    // Called the method which returns promise.
    // `await` will wait to get promise resolved.
    const result = await doSomeGeoCode();
    console.log(result);
  } catch (error) {
    // If promise got rejected.
    console.log(error);
  }
}

myTest();