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[英]Serverless: can't load lambda function on the AWS using deploy comand
[英]In AWS Lambda using Node, can't get Express to work with aws-serverless-express
下面是我的示例代碼不起作用。 無論我設置什么,我都無法讓 Express 呈現我的 ejs 頁面。
注意:我在 Lambda 前面有一個 API 網關。這只會讓我想要的流量進入。 點擊我的 Lambda 的所有內容都應該呈現快速頁面。 雖然不在我下面顯示的代碼中,但一旦工作,我將在使用 express 顯示頁面之前進行一些驗證和查找。
索引.js
"use strict";
const AWS = require('aws-sdk');
AWS.config.region = 'us-east-1';
const awsServerlessExpress = require('aws-serverless-express');
const app = require('./displayRouter.js');
const serverDisplay = awsServerlessExpress.createServer(app.router)
exports.handler = async (event, context, callback) =>{
try
{
console.log("testing");
app.setValues("setting values called correctly");
console.log("before awsserverless")
await awsServerlessExpress.proxy(serverDisplay, event, context);
console.log("after call to awsserverless");
}catch(e){
console.log("ALERT: 500 error " + e);
}
}
displayRouter.js
const express = require('express');
const path = require('path');
const router = express();
router.set('view engine', 'ejs');
const setValues = async (testValueIn) =>
{
console.log("setting Values IN ROUTER");
console.log("value sent i: " + testValueIn);
}
router.set('views', express.static(path.join(__dirname, 'views')));
router.all('/', (req, res) => {
console.log('inside function before diaplying page');
res.render("emailTestPage",{ });
});
module.exports = {router, setValues};
請注意,我調用 setValues 來證明我正在正確到達頁面。 您可以在下面的 output 中看到。 但是當我調用 router.all 時,它從未真正被擊中。 我已經嘗試過 router.use('/'...., router.get('/'..., router.post('/', ... 它們都不是每次都成功。
Lamda 日志中的 Output:
2022-03-12T17:41:41.567-05:00 2022-03-12T22:41:41.549Z ggea5c27-4955-42c0-baf9-501e3f071bc7 INFO testing
2022-03-12T17:41:41.568-05:00 2022-03-12T22:41:41.567Z ggea5c27-4955-42c0-baf9-501e3f071bc7 INFO setting VALUES IN ROUTER
2022-03-12T17:41:41.568-05:00 2022-03-12T22:41:41.568Z ggea5c27-4955-42c0-baf9-501e3f071bc7 INFO value sent i: setting values called correctly
2022-03-12T17:41:41.568-05:00 2022-03-12T22:41:41.568Z ggea5c27-4955-42c0-baf9-501e3f071bc7 INFO before awsserverless
2022-03-12T17:41:41.607-05:00 2022-03-12T22:41:41.570Z ggea5c27-4955-42c0-baf9-501e3f071bc7 INFO after call to awsserverless
2022-03-12T17:41:41.669-05:00 END RequestId: ggea5c27-4955-42c0-baf9-501e3f071bc7
2022-03-12T17:41:41.669-05:00 REPORT RequestId: ggea5c27-4955-42c0-baf9-501e3f071bc7 Duration: 160.20 ms Billed Duration: 161 ms Memory Size:
編輯********* 我已經把它簡化到一頁了。 它仍然無法正常工作。
"use strict";
const AWS = require('aws-sdk');
AWS.config.region = 'us-east-1';
const express = require('express');
const app = express();
app.set('view engine', 'ejs');
const awsServerlessExpress = require('aws-serverless-express');
app.get("/", (req, res) => {
console.log('inside app');
res.render("testPage",{ });
});
exports.handler = async (event, context, callback) =>{
try
{
console.log("CREATING SERVER");
let server = awsServerlessExpress.createServer(app);
await awsServerlessExpress.proxy(server, event, context);
console.log("after call to awsserverless");
}catch(e){
console.log("ALERT: 500 error " + e);
}
}
這是 output
2022-03-14T13:29:02.142-04:00 2022-03-14T17:29:02.124Z ddde0b20-2700-470a-bcff-af81aec74f61 INFO CREATING SERVER
2022-03-14T13:29:02.223-04:00 2022-03-14T17:29:02.185Z ddde0b20-2700-470a-bcff-af81aec74f61 INFO after call to awsserverless
2022-03-14T13:29:02.286-04:00 END RequestId: ddde0b20-2700-470a-bcff-af81aec74f61
2022-03-14T13:29:02.286-04:00 REPORT RequestId: ddde0b20-2700-470a-bcff-af81aec74f61 Duration: 191.47 ms Billed Duration: 192 ms Memory Size
我想到了。 我在這樣一個簡單的錯誤上浪費了很多時間。 我需要將“返回”添加到 awsServerlessExpress.proxy 行。
return awsServerlessExpress.proxy(server, event, context,'PROMISE').promise;
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