Question

我具有图像调整大小云功能。当我回顾日志时，我看到函数执行花费了1014毫秒。但是执行后，该功能仍会显示日志（正在执行应做的操作，图像会调整大小）。

那么日志上会有延迟吗？或者执行该功能真的需要一分钟以上的时间（这对帐单有什么问题吗？）？

谢谢！

更新：这是我的代码：

export const makeRoundPicture = functions.https.onCall(async (data, context) => {
  var bucket = admin.storage().bucket();
  console.log(context.auth.uid);

  if (context.auth.uid != null) {
    await tmp.dir(async function _tempDirCreated(err: any, path: any) {
      if (err) throw err;

      var initialurl = "https://firebasestorage.googleapis.com/v0/b/myproject.appspot.com/o/"+context.auth.uid+".jpg?alt=media";

      const options = {
        url: initialurl,
        dest: path
      }

      console.log('Dir: ', path);

      await download.image(options)
        .then(async (filename: any) => {
          console.log('Saved');
          console.log(filename['filename']);

          var uploadPath = filename['filename'];

          var original = uploadPath; 
          var output = path+"photo.png";
          var size = 230;

          await gm(original)
            .resize(size, size)
            .write(output, function() {
              gm(size, size, 'none')
                .fill(output)
                .drawCircle(size/2.05 ,size/2.05, size/2.05, 0)
                .write(output, async function(err6: any) {
                  console.log(err6 || 'done');
                  await bucket.upload(output, {
                    destination: "myfolder/"+context.auth.uid+".png",
                  });
                });
            });
        })
        .catch((err4: any) => console.error(err4))
    });
  } else {
    console.log("unAuthorized request");
  }
});

Answer 1

您的问题来自于Promises和回调API的混合。

async / await语法仅在将诺言链接在一起时起作用。

作为示例，此await tmp.dir行不等待_tempDirCreated进行评估并返回其等待的诺言。

await tmp.dir(async function _tempDirCreated(err: any, path: any) {
  /* ... */
});
// this line gets called immediately

因此，简而言之，您将需要采用基于承诺的API，例如在tmp-promise处使用node-tmp，或将整个函数包装在Promise中。

const tmp = require('tmp-promise');

export const makeRoundPicture = functions.https.onCall(async (data, context) => {

  if (!context.auth) {
    throw new functions.https.HttpsError('failed-precondition', 'The function must be called while authenticated.');
  }

  console.log('Called by: ', context.auth.uid);

  const bucket = admin.storage().bucket();
  const { path: tmpDirPath } = await tmp.dir();

  const initialurl = "https://firebasestorage.googleapis.com/v0/b/myproject.appspot.com/o/"+context.auth.uid+".jpg?alt=media";

  const options = {
    url: initialurl,
    dest: tmpDirPath
  }

  console.log('Temp Dir: ', tmpDirPath);

  let { filename: originalFilename } = await download.image(options);

  console.log('Saved: ', originalFilename);

  let output = tmpDirPath + "photo.png";
  let size = 230;

  await gmMakeRoundPicture(originalFilename, output, size);

  await bucket.upload(output, {
    destination: "myfolder/"+context.auth.uid+".png",
  });
});

function gmMakeRoundPicture(inFilePath, outFilePath, size) {
  return new Promise((resolve, reject) => {
    gm(inFilePath)
      .resize(size, size)
      .write(outFilePath, async (err) => {
        if (err) return reject(err);

        gm(size, size, 'none')
          .fill(outFilePath)
          .drawCircle(size/2.05, size/2.05, size/2.05, 0)
          .write(outFilePath, (err) => err ? reject(err) : resolve());
      })
  });
}

Firebase云功能：执行完成时间

1 个答案: