Our serverless API uses API Gateway and it gives us some auto-generated endpoints. We would like to configure them to use a scheme like api.my-domain.com or something similar. This can take a few different steps through the AWS Console, but it is pretty straightforward to configure through Seed.

Head over to our app settings.

Seed app pipeline screenshot

Here click on Edit Custom Domains.

Click Edit Custom Domains in app settings screenshot

And click Add for our production endpoint.

Click Add for production endpoint in custom domain settings

In the first part of the tutorial we had added our domain to Route 53. If you haven’t done so you can read more about it here. Hit Select a domain and you should see a list of all your Route 53 domains. Select the one you intend to use. And fill in the sub-domain and base path. For example, you could use api.my-domain.com/prod; where api is the sub-domain and prod is the base path.

And hit Add Custom Domain.

Click Add Custom Domain button for prod endpoint

Seed will now go through and configure the domain for this API Gateway endpoint, create the SSL certificate and attach it to the domain. This process can take up to 40 mins.

While we wait, we can do the same for our dev endpoint. Select the domain, sub-domain, and base path. In our case we’ll use something like api.my-domain.com/dev.

Click Add Custom Domain button for dev endpoint

Hit Add Custom Domain and wait for the changes to take place.

Once complete, we are ready to test our fully-configured serverless API backend!