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Version: v2.x

Connecting Hasura to an Aiven Postgres Database


This guide explains how to connect a new or existing Aiven Postgres database to a Hasura instance, either on Hasura Cloud or via one of our self-hosted solutions. If you're exploring Aiven and are interested in migrating an existing Postgres database - such as from Heroku - check out their docs before continuing below.


If you plan on using Hasura Cloud, which we recommend, follow steps 1 and 2 below. If you're self-hosting a Hasura instance and already have a project running, skip to step 3.

Step 1: Sign up or log in to Hasura Cloud

Navigate to Hasura Cloud and sign up or log in.

Step 2: Create a Hasura Cloud project

On the Hasura Cloud dashboard, create a new project:

Create Hasura Cloud project

After the project is initialized successfully, click on Launch Console to open the Hasura Console in your browser.

On the Hasura Console, navigate to the Data tab and choose Connect Existing Database. Hasura will prompt you for a Postgres Database URL. We'll create this in the next step and then come back here.

Hasura Cloud database setup

Step 3: Create a Postgres DB on Aiven


If you have an existing Aiven Postgres database, you can skip this step and move on to step 4.

Log into the Aiven console.

On the Aiven console, click + Create a new service:

Create a new service on Aiven

Select Postgres:

Select Postgres on Aiven

Scroll down and select the Cloud Provider, Region and Service Plan based on your requirements.

In the end, enter a Name for the service:

Create a service on Aiven

Then click Create service.


If you're using a database user other than the default one, make sure to give it the right Postgres permissions.

Step 4: Allow connections to your DB from Hasura

On the Services dashboard, click on your DB:

Select DB on Aiven

Scroll down to Allowed IP Addresses and click on Change:

Change allowed IP addresses on Aiven

If you're using Hasura Cloud, you can quickly find your IP address from the Hasura Cloud IP field on the project's details view:

Hasura Cloud IP field

If you're using a self-hosted solution, you'll need to determine the IP address manually depending on your hosting service.

Add the Hasura IP address that you copied, click on the +:

Add the Hasura IP on Aiven

Then click on Save changes.

Step 5: Get the database connection URL

The structure of the database connection URL looks as follows:


To get it, navigate to the Overview tab of your database dashboard and copy the Service URI:

Copy the service URI on Aiven

Step 6: Finish connecting the database

Back on the Hasura Console, enter the database URL that we retrieved in step 5:

Database setup

Then click Connect Database.


For security reasons, it is recommended to set database URLs as env vars and using the env vars to connect to the databases in place of the raw database URLs.

Voilà. You are ready to start developing.

Hasura Console

Next steps

Project actions

For more information on which Postgres features we support, check out this page.