Integrating HTTP and REST APIs with Atlas

This guide describes how to configure any HTTP API to work with Atlas.

Atlas can accept unauthenticated requests to any HTTP API, authenticate them, and forward them securely to that API.

You'll need to:

1. Add a new HTTP profile to the Atlas follower config file.

2. Specify the URL of the request.

3. Add any required headers, like authorization headers or API keys.

Add a new HTTP adapter

You can use the mom CLI to add new HTTP adapters to the Atlas configuration. Run this command, changing

• YOUR_ATLAS_CONFIG.yml with the path to your Atlas configuration file

• ADAPTER_TOKEN to the name of the environment variable you chose in the previous step

• ADAPTER_BASE_URL to the base URL you wish to use, e.g. https://api.github.com

• YOUR_ADAPTER_NAME to the name you want to use for the HTTP adapter in Atlas, e.g., github

mom atlas config add-http-adapter \
    -f YOUR_ATLAS_CONFIG.yml \
    --adapter-name YOUR_ADAPTER_NAME \
    --base-url ADAPTER_BASE_URL \
    -H 'Authorization: token ${{ ADAPTER_TOKEN }}'

For example, in the case of a Github adapter, you might have:

mom atlas config add-http-adapter \
    -f my_atlas.yml \
    --adapter-name github \
    --base-url https://api.github.com \
    -H 'Authorization: token ${{ GITHUB_TOKEN }}'

where my_atlas.yml is the yaml file you configured in Getting Started and GITHUB_TOKEN is saved as an environment variable. The last row might look slightly different depending on the type of token.

You should be able to check my_atlas.yml (or whatever you name your Atlas YAML) for the configuration.

Any value inside a set of ${{ dollar-and-double-curly-braces }} will be read as an environment variable from the current environment.

Apply your Kustomize overlay to your Kubernetes cluster

Follow the instructions in our installation guide to apply the Kustomize overlay that you've just modified.

Testing your adapter

Once your setup is done, you can use atlasProxyFetch with the name of your profile.

return await(atlasProxyFetch(“/v1/apis/http/my-rest-api/some/endpoint”)).json();

This will send the request with the authorization headers you've written.