This request creates a subscription for notifications to an event.

Create a subscription by selecting the event type, event version, and resource name, and also providing the event URL. You can subscribe to one or multiple notifications in a single subscription request.

Use the Retrieve event types request to get a list of event types, event versions, and resources name available for subscription. Configure an event URL to receive the notifications.

URL Authentication Options

AUTH Method as BASIC_AUTH

While making a notification request to endpoint URL, the Walmart system will pass the authentication header with a key as authHeaderName and a value as BASE64 encoding for the username and password.

AUTH Method as HMAC

While making a notification request to the endpoint URL, the Walmart system will pass the authentication header with a key as authHeaderName and a value as HMACSHA256 for a complete response, using the clientSecret as the key.

AUTH Method as OAUTH

The Walmart system will make a POST call to the OAUTH URL to generate a token with the request body as grant_type=client_credentials and headers as follows:

• Authorization header with the key as authHeaderName and value as BASE64 encoding for clientId and clientSecret
• Accept header as application/json
• Content-type header as application/x-www-form-urlencoded

Refer to the Create access token request page for more information.

Custom Headers

If custom headers are provided in the headers field and if the provided OAUTH URL return HTTPS status 200, the response has the access_token and expires_in fields. While making a notification request to the endpoint URL, the Walmart system will pass the access_token value in the headers with authHeaderName as key and value as Bearer, along with any other custom headers provided in the headers field.