从Amazon S3向客户端web应用程序获取文件-是否应该通过web API实现?

亚马逊 SDK 有一个方法来处理所有的场景普林西比在这里要从 Amazon S3 使用 软件开发工具包 然后把它传给你的前端

  import * as AWS from "aws-sdk/global";

      AWS.config.update({
        region: env.bucketRegion,
    });

    let clientParams:any = {
        region: env.bucketRegion,
        apiVersion: '2006-03-01',
        params: {Bucket: env.rekognitionBucket}
    };
    if (environment.s3_endpoint) {
        clientParams.endpoint = env.s3_endpoint;
    }

    let s3 = new S3(clientParams);

   let url = s3.getSignedUrl('getObject', {
      Bucket: env.rekognitionBucket,
      Key: '1234.txt',
  });