Working with DBaaS Redis Instance

Introduction

A serverless functions project to interact with a DBaaS Redis instance. This provides a Redis command line interface for your Redis instance to list keys, set/get/delete a key, expire a key or flush the Redis store. The list of available commands is available here.

You can deploy it as DigitalOcean Functions project. Documentation is available at https://docs.digitalocean.com/products/functions.

Requirements

• You need a DigitalOcean account. If you don't already have one, you can sign up at https://cloud.digitalocean.com/registrations/new.
• You will also need the DigitalOcean doctl CLI.

Deploying the Function

# clone this repo
git clone git@github.com:digitalocean/functions-redis.git

# deploy the project
> doctl serverless deploy functions-redis
Deploying 'functions-redis'
  to namespace 'fn-...'
  on host 'https://faas-...'
...
Deployed functions ('doctl sls fn get <funcName> --url' for URL):
  - redis/cli

Set a key

doctl serverless functions invoke redis/cli -p command:set -p key:mykey -p value:myval

{
  "value": "OK"
}

List all keys

doctl serverless functions invoke redis/cli -p command:keys

{
  "value": [
    "mykey"
  ]
}

Get a key

doctl serverless functions invoke redis/cli -p command:get -p key:mykey

{
  "value": "myval"
}

Flush all keys

doctl serverless functions invoke redis/cli -p command:flush -p flush:true

{
  "value": true
}

Note the CLI command can be abbreviated as doctl sls fn invoke redis/cli.