├── .gitignore
├── diagram
├── create_zip.png
├── invoke-url.png
├── architecture.png
├── create_method.png
└── create_resource.png
├── sample_code
├── lambda.js
├── package.json
├── app.js
└── index.html
├── CODE_OF_CONDUCT.md
├── LICENSE
├── README.md
└── CONTRIBUTING.md
/.gitignore:
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1 | node_modules
2 | build
3 | npm-debug.log
4 | .env
5 | .gitignore
6 | .DS_Store
7 |
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/diagram/create_zip.png:
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https://raw.githubusercontent.com/aws-samples/aws-lambda-demo-with-node-express/HEAD/diagram/create_zip.png
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/diagram/invoke-url.png:
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https://raw.githubusercontent.com/aws-samples/aws-lambda-demo-with-node-express/HEAD/diagram/invoke-url.png
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/diagram/architecture.png:
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https://raw.githubusercontent.com/aws-samples/aws-lambda-demo-with-node-express/HEAD/diagram/architecture.png
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/diagram/create_method.png:
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https://raw.githubusercontent.com/aws-samples/aws-lambda-demo-with-node-express/HEAD/diagram/create_method.png
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/diagram/create_resource.png:
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https://raw.githubusercontent.com/aws-samples/aws-lambda-demo-with-node-express/HEAD/diagram/create_resource.png
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/sample_code/lambda.js:
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1 | "use strict";
2 | const awsServerlessExpress = require("aws-serverless-express")
3 | const app = require("./app")
4 | const server = awsServerlessExpress.createServer(app)
5 |
6 | exports.handler = (event, context) => {
7 | awsServerlessExpress.proxy(server, event, context);
8 | };
9 |
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/CODE_OF_CONDUCT.md:
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1 | ## Code of Conduct
2 | This project has adopted the [Amazon Open Source Code of Conduct](https://aws.github.io/code-of-conduct).
3 | For more information see the [Code of Conduct FAQ](https://aws.github.io/code-of-conduct-faq) or contact
4 | opensource-codeofconduct@amazon.com with any additional questions or comments.
5 |
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/sample_code/package.json:
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1 | {
2 | "name": "simple-calculator",
3 | "version": "1.0.0",
4 | "description": "Sample Node-Express app running on AWS Lambda",
5 | "main": "calculator.js",
6 | "scripts": {
7 | "test": "echo \"Error: no test specified\" && exit 1"
8 | },
9 | "author": "buraku",
10 | "license": "MIT-O",
11 | "dependencies": {
12 | "aws-serverless-express": "^3.3.8",
13 | "express": "^4.17.1"
14 | }
15 | }
16 |
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/LICENSE:
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1 | Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
2 |
3 | Permission is hereby granted, free of charge, to any person obtaining a copy of
4 | this software and associated documentation files (the "Software"), to deal in
5 | the Software without restriction, including without limitation the rights to
6 | use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
7 | the Software, and to permit persons to whom the Software is furnished to do so.
8 |
9 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
10 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
11 | FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
12 | COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
13 | IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
14 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
15 |
16 |
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/sample_code/app.js:
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1 | // jshint esversion: 6
2 |
3 | const express = require("express");
4 | var bodyParser = require("body-parser");
5 | const app = express();
6 | const port =3000
7 | app.use(
8 | bodyParser.urlencoded({
9 | extended: true,
10 | })
11 | );
12 |
13 | app.get("/", function (req, res) {
14 | res.sendFile(__dirname + "/index.html");
15 | });
16 |
17 | app.post("/", function (req, res) {
18 | let num1 = Number(req.body.num1);
19 | let num2 = Number(req.body["num2"]);
20 | let operator = "";
21 | switch (req.body.operator) {
22 | case "+":
23 | operator = add;
24 | break;
25 | case "x":
26 | operator = multiply;
27 | break;
28 | case "-":
29 | operator = subtract;
30 | break;
31 | case "/":
32 | operator = divide;
33 | break;
34 | }
35 | console.log(calculator(num1, num2, operator));
36 | res.send(`
37 |
38 | That was easy, your result is: ${calculator(num1, num2, operator)}
39 |
40 | 
41 |
42 | There's no need for compliments
43 | I already know i'm the smartest app in the world hahaha ;)
44 |
45 | By the way I'm running on a Lambda Function
46 |
47 |
48 | ` );
49 | });
50 |
51 |
52 | function add(num1, num2) {
53 | return num1 + num2;
54 | }
55 |
56 | function subtract(num1, num2) {
57 | return num1 - num2;
58 | }
59 |
60 | function multiply(num1, num2) {
61 | return num1 * num2;
62 | }
63 | function divide(num1, num2) {
64 | return num1 / num2;
65 | }
66 | function calculator(num1, num2, operator) {
67 | return operator(num1, num2);
68 | }
69 |
70 | app.listen(port, () => console.log(`calculator listening on port {port}!`))
71 |
72 | module.exports = app
73 |
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/sample_code/index.html:
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1 |
2 |
3 |
4 |
5 |
6 | Simple Calculator
7 |
46 |
47 |
48 |
49 |
50 |
Some Simple Math on Lambda
51 |
52 |
65 |
66 |
67 | 
68 |
69 |
70 |
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/README.md:
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1 | # How to Deploy a Node-Express App on AWS Lambda
2 |
3 | The purpose of this repository is to demonstrate how to deploy a simple web
4 | application built by Express - Node.js web application framework on AWS Lambda.
5 |
6 |
7 | ### Requirements
8 | - `Node.js with Node Package Manager(npm)` should be installed on your local system.
9 |
10 |
11 | ### Architecture
12 |
13 | **Request Response Cycle :**
14 |
15 |
16 | 
17 |
18 |
19 |
20 | ### Prepare the code
21 |
22 | - Download the `sample_code` directory to your local system.
23 |
24 | - Run `npm install` command in the same directory of the downladed folder. `package.json` file includes necessary dependencies to generate `node_modules/`
25 |
26 | - Create a zip file that will include all files in the directory.
27 |
28 |
29 | **Note:** Don't zip the folder itself, but select all files individually. Refer to below image if needed:
30 |
31 |
32 | 
33 |
34 |
35 |
36 | ### Create a Lambda function
37 |
38 | - Give your function a name like "aws-lambda-demo-with-node-express". Basic permissions will be sufficient for the purpose of this demonstration
39 |
40 | - Upload zip file created on previous step through the console and click DEPLOY
41 |
42 | - Rename your handler as "lambda.handler". It is the main module that uses [`aws-serverless-express`](https://github.com/awslabs/aws-serverless-express) package to easily get the event object Lambda receives from API Gateway
43 |
44 |
45 | ### Integration with API Gateway
46 |
47 | - Create a new REST API and name it "aws-lambda-demo-with-node-express"
48 |
49 | - Create a method with ANY, use Lambda Proxy integration and select your function. Refer to below image if needed:
50 |
51 |
52 | 
53 |
54 |
55 |
56 | - Create a resource, configure as proxy resource. Refer to below image if needed:
57 |
58 |
59 | 
60 |
61 |
62 | - Use Lambda Function Proxy and select your function.
63 |
64 | - Deploy your API and name the stage "calculator".
65 |
66 | **Note:** This will be URL extension for our API, which needs to match with the html form inside our code.
67 |
68 | `