├── .gitignore
├── README.md
├── handler.js
├── layer
    └── nodejs
    │   └── package-lock.json
└── serverless.yml


/.gitignore:
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1 | # package directories
2 | node_modules
3 | jspm_packages
4 | 
5 | # Serverless directories
6 | .serverless


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/README.md:
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 1 | # Lodash and Moment Lambda layer
 2 | 
 3 | example of How To Add NodeJs Library Dependencies in a AWS Lambda Layer With Serverless Framework
 4 | https://medium.com/neami-apps/how-to-add-nodejs-library-dependencies-in-a-aws-lambda-layer-with-serverless-framework-d774cb867197
 5 | 
 6 | ## How to setup
 7 | 
 8 | ```
 9 | cd layer/nodejs
10 | npm install --save lodash moment
11 | ```
12 | 
13 | Go back to root directory
14 | 
15 | ```
16 | sls deploy
17 | ```
18 | 
19 | ## How to run
20 | 
21 | ```
22 | sls invoke --function hello --data=2
23 | ```
24 | 


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/handler.js:
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 1 | "use strict";
 2 | 
 3 | const _ = require("lodash");
 4 | const moment = require("moment");
 5 | 
 6 | module.exports.hello = async (event, context, callback) => {
 7 |   const curried = _.curry(calculateDate);
 8 |   callback(null, curried(moment().format())(event));
 9 | };
10 | 
11 | const calculateDate = function(datetime, days) {
12 |   return moment()
13 |     .add(days, "days")
14 |     .format("Do MMMM YYYY, h:mm:ss a");
15 | };
16 | 


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/layer/nodejs/package-lock.json:
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 1 | {
 2 |   "requires": true,
 3 |   "lockfileVersion": 1,
 4 |   "dependencies": {
 5 |     "lodash": {
 6 |       "version": "4.17.11",
 7 |       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
 8 |       "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg=="
 9 |     },
10 |     "moment": {
11 |       "version": "2.22.2",
12 |       "resolved": "https://registry.npmjs.org/moment/-/moment-2.22.2.tgz",
13 |       "integrity": "sha1-PCV/mDn8DpP/UxSWMiOeuQeD/2Y="
14 |     }
15 |   }
16 | }
17 | 


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/serverless.yml:
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 1 | service: myTestLayer # NOTE: update this with your service name
 2 | 
 3 | provider:
 4 |   name: aws
 5 |   runtime: nodejs8.10
 6 |   region: ap-southeast-2
 7 | 
 8 | 
 9 | functions:
10 |   hello:
11 |     handler: handler.hello
12 |     layers:
13 |         # Ref name is generated by TitleCasing the layer name & appending LambdaLayer
14 |       - {Ref: CommonLibsLambdaLayer}
15 | 
16 | layers:
17 |   commonLibs:
18 |     path: layer
19 |     compatibleRuntimes:
20 |       - nodejs8.10
21 | 


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