node.js - 从另一个 lambda 调用 lambda 的问题

Question

我有 2 个不想通过 API 网关直接调用的 Lambda 函数。Lambda 函数 A 与 queryStringParameters 一起调用 Lambda B。由于某些原因，我收到此错误

{ UnexpectedParameter：在参数中找到意外的键“queryStringParameters”

这是我的 Lambda A 函数

    var aws = require('aws-sdk');
var lambda = new aws.Lambda({
  region: 'eu-central-1'
});    
exports.handler = (event, context, callback) => {
var params = {
      FunctionName: "function-getStats", 
      InvocationType: "RequestResponse", 
      LogType: "Tail", 
      "queryStringParameters" : { "fn" : "latest_no" }
     };
     lambda.invoke(params, function(err, data) {
       if (err) console.log(err, err.stack); // an error occurred
       else     console.log(data);           // successful response
     });
};

如下调用 Lambda B

var AWS = require('aws-sdk');
AWS.config.update({region: 'eu-central-1'});
var ddb = new AWS.DynamoDB.DocumentClient({apiVersion: '2012-08-10'});

exports.handler = (event, context, callback) => {
    var fn = event["queryStringParameters"]['fn'];
...
..


//If successful return the following response
     console.log("Success", items);
                callback(null, {
                    'statusCode': '200',
                    'body': JSON.stringify(items),
                    'headers': {
                        "Access-Control-Allow-Origin": "*"

                    },
                    'isBase64Encoded': false
                });

有人可以建议如何解决这个问题吗？

Answer 1

万一有人遇到同样的问题。这是我所做的方法

var aws = require('aws-sdk');
var lambda = new aws.Lambda({
  region: 'eu-central-1'
});    
exports.handler = (event, context, callback) => {
    event.queryStringParameters= {"fn" : "latest_no" };
var params = {
      FunctionName: "function-getStats", 
      InvocationType: "RequestResponse", 
      LogType: "Tail", 
      Payload: JSON.stringify(event, null, 2), 

     };
     lambda.invoke(params, function(err, data) {
       if (err) console.log(err, err.stack); // an error occurred
       else     console.log(data);           // successful response
     });
};