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Author:
Ajeet Raina, Former Developer Growth Manager at Redis

Create a Redis database on Heroku

Heroku is a cloud Platform as a Service (PaaS) supporting multiple programming languages that is used as a web application deployment model. Heroku lets the developer build, run and scale applications in a similar manner across all the languages(Java, Node.js, Scala, Clojure, Python, PHP, Ruby and Go).

Using Redis Enterprise Cloud directly​

Redis is an open source, in-memory, key-value data store most commonly used as a primary database, cache, message broker, and queue. Redis cache delivers sub-millisecond response times, enabling fast and powerful real-time applications in industries such as gaming, fintech, ad-tech, social media, healthcare, and IoT.

Redis Cloud is a fully-managed cloud service for hosting and running your Redis dataset in a highly-available and scalable manner, with predictable and stable top performance. Redis Enterprise cloud allows you to run Redis server over the Cloud and access instance via multiple ways like RedisInsight, redis command line as well as client tools. You can quickly and easily get your apps up and running with Redis Cloud through its Redis Heroku addons , just tell us how much memory you need and get started instantly with your first Redis database. You can then add more Redis databases (each running in a dedicated process, in a non-blocking manner) and increase or decrease the memory size of your plan without affecting your existing data.

::tip INFO Heroku addons are set of tools and services for developing, extending, and operating your app. :::

You can quickly and easily get your apps up and running with Redis Enterprise Cloud directly. Follow the below steps:

Step 1. Create Redis Enterprise Cloud​

Create your free Redis Enterprise Cloud account by visiting this link

TIP

For a limited time, use TIGER200 to get $200 credits on Redis Enterprise Cloud and try all the advanced capabilities!

πŸŽ‰ Click here to sign up

recloud

Follow this link to create a Redis Enterprise Cloud subscription and database. Once you create the database, you will be provisioned with a unique database endpoint URL, port and password. Save these for future reference.

Before you proceed with heroku redis, ensure that you can connect to Redis instance and verify if it is accessible via redis-cli command. You can run info command that is available in redis client software to see the version, memory usage, stats, and modules enabled in the Redis cloud database.

Step 2. Create a Heroku account​

If you are using Heroku for the first time, create your new Heroku account through this link.

heroku

Step 3. Install Heroku CLI on your system​

 brew install heroku

Step 4. Login to Heroku​

 heroku login
heroku: Press any key to open up the browser to login or q to exit:
Opening browser to https://cli-auth.heroku.com/auth/cli/browser/XXXXXXXXXXA
Logging in... done
Logged in as your_email_address

Step 5. Connect your application to Redis Enterprise Cloud​

For this demonstration, we will be using a Sample Rate Limiting application.

Clone the repository​

 git clone https://github.com/redis-developer/basic-rate-limiting-demo-python

Run the commands below to get a functioning Git repository that contains a simple application as well as a package.json file.

 heroku create
Creating app... done, β¬’ lit-bayou-75670
https://lit-bayou-75670.herokuapp.com/ | https://git.heroku.com/lit-bayou-75670.git

heroku

Step 6. Setting up environment variables​

Follow this link to create a Redis Enterprise Cloud subscription and database connection as shown below: Go to the Heroku dashboard, click "Settings" and set REDIS_URL and REDIS_PASSWORD under the Config Vars. (Please note that the Redis URL endpoint is unique and might be different in your case. Please enter the values accordingly)

Refer to Step 1 for the correct values to use.

heroku

Step 7. Pushing the code to Git​

 git push heroku
remote: -----> Build succeeded!
remote: -----> Discovering process types
remote: Procfile declares types -> web
remote:
remote: -----> Compressing...
remote: Done: 32.9M
remote: -----> Launching...
remote: Released v5
remote: https://lit-bayou-75670.herokuapp.com/ deployed to Heroku
remote:
remote: Verifying deploy... done.
To https://git.heroku.com/lit-bayou-75670.git
* [new branch] main -> main

Check the logs:

 heroku logs --tail
2021-03-27T03:48:30.000000+00:00 app[api]: Build succeeded
2021-03-27T03:48:33.956884+00:00 heroku[web.1]: Starting process with command `node server/index.js`
2021-03-27T03:48:36.196827+00:00 app[web.1]: App listening on port 11893

Step 8. Accessing the app​

heroku

Next Steps​