在AWS Lambda中获取正文请求

Question

I have the following AWS Lambda running NodeJs 8.0 which receives requests from API Gateway.

Lambda code looks the following:

const mysql = require('mysql');

exports.handler = (event, context, callback) => {
    console.log("event.body = " + event.body);
    console.log("event.body.requestType = " + event.body.requestType);
    .  
    .
    .
    .
}

This line:

console.log("event.body = " + event.body);

prints the following (in Cloudwatch)

2019-03-10T16:58:31.265Z    276b4902-e716-44b1-ad9e-ed4eb4e1c02d    event.body =
{
    "requestType": "single",
    "createdAt": "2019-03-10T16:58:29.722",
}

I want to get the value of requestType, so trying to do the following:

console.log("event.body.requestType = " + event.body.requestType);

but it prints

event.body.createdAt = undefined

How can I get the requestType value?

Answer 1

我认为，主体是编码字符串，请尝试以下操作：

console.log("event.body.requestType = " + JSON.parse(event.body).requestType);