To send a webhook from Ory Hydra with an API key in the HTTP header, you can use the Ory CLI to register your webhook endpoint. Here is an example of how to do this:

bash ory patch oauth2-config --project <project-id> --workspace <workspace-id> \     --add '/oauth2/token_hook/url="<https://my-example.app/token-hook>"' \     --add '/oauth2/token_hook/auth/type="api_key"' \     --add '/oauth2/token_hook/auth/config/in="header"' \     --add '/oauth2/token_hook/auth/config/name="X-API-Key"' \     --add '/oauth2/token_hook/auth/config/value="MY API KEY"' \     --format yaml

In this command, replace

<project-id>

and

<workspace-id>

with your project and workspace IDs. Also, replace

"<https://my-example.app/token-hook>"

with your webhook endpoint URL, and

"MY API KEY"

with your actual API key. This command will register your webhook endpoint with Ory Hydra, and configure it to send the API key in the HTTP header when making requests to your endpoint. For more information, refer to the [Ory Hydra documentation](https://www.ory.sh/docs/hydra/guides/claims-at-refresh#configuration).

To set environment variables for Ory Hydra, you can use the

export

command in Unix-based systems (like macOS and Linux) or the

set

command in Windows CMD. Here are examples for each: For macOS and Linux:

bash export ORY_SDK_URL=https://$<http://PROJECT_SLUG.projects.oryapis.com|PROJECT_SLUG.projects.oryapis.com>

For Windows CMD:

cmd set ORY_SDK_URL=https://$<http://PROJECT_SLUG.projects.oryapis.com|PROJECT_SLUG.projects.oryapis.com>

In these commands, replace

$PROJECT_SLUG

with your actual project slug. These commands will set the

ORY_SDK_URL

environment variable to the URL of your Ory project's APIs. For more information, refer to the [Ory documentation](https://www.ory.sh/docs/getting-started/integrate-auth/expressjs#run-your-expressjs-app).

To send an API key in HTTP headers from Hydra to a webhook URL, you don't directly set environment variables. Instead, you use the Ory CLI to configure the webhook endpoint with the API key in the HTTP header. Here is an example:

bash ory patch oauth2-config --project <project-id> --workspace <workspace-id> \     --add '/oauth2/token_hook/url="<https://my-example.app/token-hook>"' \     --add '/oauth2/token_hook/auth/type="api_key"' \     --add '/oauth2/token_hook/auth/config/in="header"' \     --add '/oauth2/token_hook/auth/config/name="X-API-Key"' \     --add '/oauth2/token_hook/auth/config/value="MY API KEY"' \     --format yaml

In this command, replace

<project-id>

and

<workspace-id>

with your project and workspace IDs. Also, replace

"<https://my-example.app/token-hook>"

with your webhook endpoint URL, and

"MY API KEY"

with your actual API key. This command will register your webhook endpoint with Ory Hydra, and configure it to send the API key in the HTTP header when making requests to your endpoint. For more information, refer to the [Ory Hydra documentation](https://www.ory.sh/docs/hydra/guides/claims-at-refresh#configuration).