Getting started

Environments

	Production	Test (sandbox)
API base URL	`https://notell-api.com`	`https://slots.justsaynot.ru`
Purpose	Live integration	Development and acceptance tests of your integration
Games, API, callbacks	Same API and contract	Same API and contract
Callback source IPs	`callbackSourceIps` of `GET /capabilities` (currently `212.192.5.4`)	Ask your account manager: `callbackSourceIps` of the sandbox `GET /capabilities` is currently empty
Project id (`partner`), `api_key`, IP allowlist	Issued for production	Issued separately; keys of one environment do not work in the other
Units	TEST_ONLY, non-withdrawable (Overview)	TEST_ONLY, non-withdrawable

Rules of thumb#

Same code, different base URL and credentials. Take the base URL, partner, api_key, callback URL and the IP allowlist from configuration per environment.
Allow the callback source IPs of the environment you call; production and test callbacks come from different servers.
The rate limits of an environment are in rateLimits of its GET /capabilities (Conventions). The cancel policy of an unconfirmed bet (10 minutes or 600 attempts, whichever comes first) is not exposed by the API; see Round cancel and refunds.
Test the failure paths before going live: a wallet timeout, a repeated bet, a refund, a wrong signature, 429. The admin panel's API Logs show every callback attempt.
The documentation and the OpenAPI document show the production address (https://notell-api.com); on the test environment substitute the base URL.

[ ] Production credentials received, the production callback URL set in the admin panel.
[ ] Production callback IPs allowed; signature verification on.
[ ] refund, idempotency, INSUFFICIENT_FUNDS and the HTTP 4xx rule behave as in the wallet contract.
[ ] The pages that embed the game are in the allowed iframe origins.
[ ] Reports reconcile with your ledger for a test period (Reporting).