获取没有响应主体节点js和DynamoDB的响应头

时间:2019-03-27 20:23:43

标签: node.js amazon-dynamodb response

我有以下代码可以扫描DynamoDB表并返回结果,但是仅显示响应标头,而没有正文!

import { success, failure } from "../../libs/response-lib";

const AWS = require('aws-sdk');
const docClint = new AWS.DynamoDB.DocumentClient({region: 'eu-central-1'});
export async function main() {
  let params = {
    TableName: "brands",
    limit: 100
  };

  try {
    const a = await docClint.scan(params);
    return success(a.Items);
  } catch (e) {
    return failure({ status: false });
  }
}

尽管在其他js文件中,im使用另一种方式从具有DynamoDB lib的DynamoDB表中获取项目,但在这里正常工作是工作代码:

import * as dynamoDbLib from "../../libs/dynamodb-lib";
import { success, failure } from "../../libs/response-lib";

export async function main(event, context) {
  const params = {
    TableName: "orders",

    KeyConditionExpression: "userId = :userId",
    ExpressionAttributeValues: {
      ":userId": event.requestContext.identity.cognitoIdentityId
    }
  };

  try {
    const result = await dynamoDbLib.call("query", params);
    return success(result.Items);
  } catch (e) {
     console.log(e);
     return failure({ status: false });
  }
}

我更改了查询数据库的方式,因为我没有要查询的ExpressionAttributeValues,如果有更好的方法,请提出建议。

0 个答案:

没有答案