如何从Node中的图像URL将图像上传到Google Cloud Storage? [英] How to upload an image to Google Cloud Storage from an image url in Node?

问题描述

给出图片网址，如何将其上传到Google Cloud Storage以使用Node.js进行图片处理?

Given an image url, how can I upload that image to Google Cloud Storage for image processing using Node.js?

推荐答案

这是一个两步过程:

• 使用请求或库上传到GCL.

• Download file locally using request or fetch.

• Upload to GCL with the official library.

var fs = require('fs');
var gcloud = require('gcloud');

// Authenticating on a per-API-basis. You don't need to do this if you auth on a
// global basis (see Authentication section above).

var gcs = gcloud.storage({
  projectId: 'my-project',
  keyFilename: '/path/to/keyfile.json'
});

// Create a new bucket.
gcs.createBucket('my-new-bucket', function(err, bucket) {
  if (!err) {
    // "my-new-bucket" was successfully created.
  }
});

// Reference an existing bucket.
var bucket = gcs.bucket('my-existing-bucket');                
var localReadStream = fs.createReadStream('/photos/zoo/zebra.jpg');
var remoteWriteStream = bucket.file('zebra.jpg').createWriteStream();
localReadStream.pipe(remoteWriteStream)
  .on('error', function(err) {})
  .on('finish', function() {
    // The file upload is complete.
  });

如果要将文件另存为jpeg图像，则需要编辑remoteWriteStream流并添加自定义元数据:

If you would like to save the file as a jpeg image, you will need to edit the remoteWriteStream stream and add custom metadata:

var image = bucket.file('zebra.jpg');
localReadStream.pipe(image.createWriteStream({
    metadata: {
      contentType: 'image/jpeg',
      metadata: {
        custom: 'metadata'
      }
    }
}))

我在浏览这份文档时发现了这个问题

I found this while digging through this documentation

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