https://github.com/geovanisouza92/cycle-lambda

AWS Lambda function written using Cycle.js
https://github.com/geovanisouza92/cycle-lambda

cyclejs lambda reactive reactive-programming

Last synced: 15 days ago
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AWS Lambda function written using Cycle.js

• Host: GitHub
• URL: https://github.com/geovanisouza92/cycle-lambda
• Owner: geovanisouza92
• Created: 2017-02-07T15:52:46.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2017-02-07T22:46:09.000Z (almost 8 years ago)
• Last Synced: 2023-03-22T20:53:27.505Z (almost 2 years ago)
• Topics: cyclejs, lambda, reactive, reactive-programming
• Language: JavaScript
• Size: 5.86 KB
• Stars: 3
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# cycle-lambda

A tiny example about how to write a [Cycle.js](https://cycle.js.org/) app that runs inside a AWS Lambda function.

The idea is really simple: Use a driver to input Lambda event and context for the **main** function as a *source*, and use the *sink* to send back the result.

All the logic/behavior (and other side-effects like querying a RDS database or making an HTTP call) is handled inside **main** function with the help of other drivers. Note that the Lambda function must have the correct permissions on its role to execute such tasks.

# NPM Scripts

## npm test

Emulates a Lambda handler invocation.

If you want to provide a sample test event, configure it inside `functions//config.json`.

## npm deploy

Deploys a functions as per `functions//config.json` configurations on the target environment.

You must provide three environment variables (could be in a `.env` file): `REGION`, `AWS_ACCESS_KEY` and `AWS_SECRET_ACCESS_KEY` with permissions to put objects on S3 and update function code on Lambda.

# Helper scripts

## `.scripts/emulate.js`

Emulates a Lambda handler invocation. *It does not provide a context object for now.*

## `.scripts/deploy.js`

Deploys a function to Lambda.

## `.scripts/archive.js`

Used by `.scripts/deploy.js` to create a package with function code and `node_modules` dependencies.

## `.scripts/link-functions.js`

Used to link `lib/` code inside the function's folder, allowing emulation and packaging.