无法从AWS (wo )调用外部服务

Question

我使用的是serverless框架和AWS (node.js)。

lambda使用axios进行两个API调用-一个GET和一个POST。当在本地运行该函数时，一切都很好，但是当我在AWS中部署和运行它时，POST请求就不会发生，但是在日志中没有收到任何错误消息。

我看到了以前关于这个问题的一些问题(例如here)，它们都提到需要在运行在VPC中的函数中定义一些东西。这个特定的函数没有配置VPC，所以我认为这不会是问题所在。

我还在serverless.yml中启用了cors (见下文)。

任何帮助都将不胜感激。

serverless.yml

service: someservice
app: makingapps
org: orgname
frameworkVersion: '2'

provider:
  name: aws
  runtime: nodejs12.x
  lambdaHashingVersion: 11111
  httpApi:
    cors: true

functions:
  myfunc:
    handler: myfunc.myfunc
    events:
      - httpApi:
          path: /
          method: get
plugins:
  - serverless-offline

myFunc.js

const axios = require('axios');

module.exports.myFunc = async (event) => {
    async function sendEmail(number) {
        console.log('[sendingEmail] function started' ) //Shows in the logs
        const message = `The number is ${number}`
        let options = {
            method: 'POST',
            url: 'https://rapidprod-sendgrid-v1.p.rapidapi.com/mail/send',
            headers: {
                'content-type': 'application/json',
                'x-rapidapi-key': 'key-hash',
                'x-rapidapi-host': 'hostname.com'
            },
            data: {
                foo: [{'bar_key': 'bar_value'}],
                content: [{type: 'text/plain', value: message}]
            }
        };
        try {
            const emailResponse = await axios(options) 
            console.log(emailResponse.data); //Only shows in the log when run locally
        } catch(error) {
            console.error(error); //Doesn't show in the log
        }
    }


    const response = {
        statusCode: 200,
        body: null,
    };

    try {
      const numResponse = await axios.get('https://example.com');
      const number = numResponse.data
      console.log(number) //Shows on logs
      
      response.body = 'The current number is: ' + number;
      response.statusCode = 200;
      sendEmail(number);
      console.log('[main] after sendEmail function') //Shows in logs

    } catch (err) {
        response.body = err;
        response.statusCode = 'Error';
    } finally {
        console.log('Here is the response: ', response.body);
        return response;
    }
};

Answer 1

sendMail是一个async函数。你必须await它。

替换

sendEmail(number);

await sendEmail(number);