Question

我正在尝试使用nodejs和aws sdk将图像上传到s3。它不断返回奇怪的错误：“无法访问的主机：`images.dynamodb.us-east-1.amazonaws.com”。此服务在'us-east-1'地区可能不可用

这是我的lambda代码：

exports.handler = function(event,context,callback){
     var s3 = new AWS.S3();
     const image = event.body.imageBinary;

     var buf = new Buffer.from(image.replace(/^data:image\/\w+;base64,/, ""),'base64');
     const type = image.split(';')[0].split('/')[1];
     var params = {
          Bucket: process.env.BUCKET,
          Key: `${AccountId}.${type}`, 
          Body: buf,
          ContentEncoding: 'base64',
          ContentType: `image/${type}`
      };

      s3.upload(params, function(err, resp){
          if (err) { 
             console.log(err);

          } else {
             console.log('succesfully uploaded the image!: ' + JSON.stringify(resp));

          }
      });
}

我什至尝试设置AWS对象配置（包括密钥，私钥和区域），但得到的响应相同

我的aws sdk版本：“ aws-sdk”：“ ^ 2.610.0” 任何帮助都很好

谢谢！

Answer 1

Lambda支持node.js v12。允许您编写async/await代码

const AWS = require('aws-sdk');
const s3 = new AWS.S3({
  region: 'us-east-1',
  apiVersion: '2006-03-01',
});

exports.handler = async(event,context) => {
 const image = event.body.imageBinary;

 const buf = new Buffer.from(image.replace(/^data:image\/\w+;base64,/, ""),'base64');
 const type = image.split(';')[0].split('/')[1];

 var params = {
      Bucket: process.env.BUCKET,
      Key: `${AccountId}.${type}`, 
      Body: buf,
  };

  const options = {
    ACL: 'private',
    CacheControl: 'max-age=86400',
    ContentType: `image/${type}`,
    ContentEncoding: 'base64',
  };

  await s3.upload(params, options).promise();
}

使用节点js将映像上传到AWS s3存储桶时遇到问题

1 个答案: