Question

I'm replicating this Google authored tutorial我遇到了一个问题和错误，我无法弄清楚如何解决。

在Google Cloud Function上导入json到bigquery，我收到错误“TypeError：job.promise不是函数”

位于函数底部，有问题的代码是：

.then(([job]) => job.promise())

The error led me to this discussion about the API used，但我不明白如何解决错误。

我尝试.then(([ job ]) => waitJobFinish(job))并删除该行可以解决错误，但不会插入任何内容。

第三个问题：我也找不到关于如何触发函数测试的文档，以便我可以在google云功能控制台中读取我的console.logs，这有助于解决这个问题。我可以测试这个函数的json POST部分，但我找不到什么json触发新文件的测试写入云存储 - 测试说必须包含一个桶但我不知道json要格式化什么（我用来测试帖子的json - ＆gt;存储到云存储不起作用）

这是我已经完成的功能：

(function () {
   'use strict';


    // Get a reference to the Cloud Storage component
    const storage = require('@google-cloud/storage')();
    // Get a reference to the BigQuery component
    const bigquery = require('@google-cloud/bigquery')();


    function getTable () {
      const dataset = bigquery.dataset("iterableToBigquery");

      return dataset.get({ autoCreate: true })
        .then(([dataset]) => dataset.table("iterableToBigquery").get({ autoCreate: true }));
    }


    //set trigger for new files to google storage bucket
    exports.iterableToBigquery = (event) => {
      const file = event.data;

      if (file.resourceState === 'not_exists') {
        // This was a deletion event, we don't want to process this
        return;
      }

      return Promise.resolve()
        .then(() => {
          if (!file.bucket) {
            throw new Error('Bucket not provided. Make sure you have a "bucket" property in your request');
          } else if (!file.name) {
            throw new Error('Filename not provided. Make sure you have a "name" property in your request');
          }

          return getTable();
        })
        .then(([table]) => {
          const fileObj = storage.bucket(file.bucket).file(file.name);
          console.log(`Starting job for ${file.name}`);
          const metadata = {
            autodetect: true,
            sourceFormat: 'NEWLINE_DELIMITED_JSON'
          };
          return table.import(fileObj, metadata);
        })
        .then(([job]) => job.promise())
        //.then(([ job ]) => waitJobFinish(job))

        .then(() => console.log(`Job complete for ${file.name}`))
        .catch((err) => {
          console.log(`Job failed for ${file.name}`);
          return Promise.reject(err);
        });
    };


}());

Answer 1

所以我无法弄清楚如何修复谷歌的例子，但我能够从js获得这个加载来使用谷歌云功能中的以下代码：

'use strict';
/*jshint esversion: 6 */
// Get a reference to the Cloud Storage component
const storage = require('@google-cloud/storage')();
// Get a reference to the BigQuery component
const bigquery = require('@google-cloud/bigquery')();

exports.iterableToBigquery = (event) => {
  const file = event.data;

  if (file.resourceState === 'not_exists') {
    // This was a deletion event, we don't want to process this
    return;
  }

    const importmetadata = {
        autodetect: false,
        sourceFormat: 'NEWLINE_DELIMITED_JSON'
    };

    let job;

  // Loads data from a Google Cloud Storage file into the table
  bigquery
    .dataset("analytics")
    .table("iterable")
    .import(storage.bucket(file.bucket).file(file.name),importmetadata)
    .then(results => {
      job = results[0];
      console.log(`Job ${job.id} started.`);

      // Wait for the job to finish
      return job;
    })
    .then(metadata => {
      // Check the job's status for errors
      const errors = metadata.status.errors;
      if (errors && errors.length > 0) {
        throw errors;
      }
    })
    .then(() => {
      console.log(`Job ${job.id} completed.`);
    })
    .catch(err => {
      console.error('ERROR:', err);
    });


};

谷歌云功能bigquery json insert TypeError：job.promise不是一个函数

1 个答案: