Requirements before start

To ensure seamless integration and optimal performance of the webhook, it is crucial for clients to provide the following details. This information helps us configure and tailor the webhook service to meet your specific requirements effectively.

Required Information to be Provided by the Client:

1. Callback Webhook URL Endpoint
   URL: Provide the specific endpoint URL where the webhook notifications should be sent.
2. Authentication Model
   Method: Specify the authentication method used for secure communication (e.g., Basic Auth, OAuth2, API Key).
   Credentials/Tokens: Provide any necessary credentials or tokens required for authentication.
3. Retry Configuration
   Number of Retries: Indicate the number of retry attempts in case the initial webhook delivery fails.
   Interval Between Retries: Specify the time interval (in seconds) between each retry attempt.
4. Maximum Number of Simultaneous Requests (TPS)
   TPS (Transactions Per Second): Define the maximum number of simultaneous requests your endpoint can handle to ensure optimal performance.
5. Integration Model
   External – Internet: Specify if the integration will be accessible via the internet.
   Internal – VPN/Dedicated Link: Indicate if the integration will use an internal VPN or a dedicated link.
6. Firewall Rules
   Details: Provide any necessary information regarding firewall rules or IP whitelisting required to facilitate communication between Fiserv's systems and your endpoint.
7. Create Response for Fiserv POST Request
   Compliance with HTTP Protocols: Ensure that your endpoint can generate and send appropriate HTTP responses in compliance with standard HTTP protocols.

By providing this detailed information, Fiserv can accurately configure and optimize the webhook service for your specific use case, ensuring reliable and efficient data transmission. If you have any questions or need assistance with any of the required information, please do not hesitate to contact our support team.