Amazon web services aws S3 bucket:从浏览器上载POST文件时出现内部服务器错误500

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内部错误
我们遇到内部错误。请重试。

将POST表单数据上载到s3存储桶时

S3配置：

const attachmentBucket = new Bucket(this, 'caS3Bucket', {
  bucketName: environmentName + '.caattachments',
  cors: [{
    allowedMethods: [HttpMethods.GET, HttpMethods.POST],
    allowedOrigins: ['*'],
    allowedHeaders: ['*'],
    maxAge: 3000
  } as CorsRule]
} as BucketProps);

通过lambda预签名上载url：

const params = {
  Bucket: process.env.S3_BUCKET!.split(':')[5],
  Fields: {
    key: payload.path,
    acl: 'public-read'
  },
  Expires: 3600
};

const postData = await new Promise(resolve => {
  s3.createPresignedPost(params, (err, data) => {
    resolve(data);
  });
}) as AWS.S3.PresignedPost;

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我将postData.fields中的所有参数与文件一起附加到输入表单中。是否有任何方法对此进行调试？

问题是表单缺少“策略”字段。我希望aws的错误更具描述性。最终工作表单字段如下所示：

const formData: FormData = new FormData();

formData.append('key', uploadData.fields.key);
formData.append('acl', uploadData.fields.acl);
formData.append('bucket', uploadData.fields.bucket);
formData.append('X-Amz-Algorithm', uploadData.fields.algorithm);
formData.append('X-Amz-Credential', uploadData.fields.credential);
formData.append('X-Amz-Date', uploadData.fields.date);
formData.append('X-Amz-Security-Token', uploadData.fields.token);
formData.append('Policy', uploadData.fields.policy);
formData.append('X-Amz-Signature', uploadData.fields.signature);
formData.append('file', file, file.name);