digota

Built on gRPC and Protocol Buffers, it supports multiple languages like Go, Java, and Python, making it easy to integrate with diverse tech stacks, as highlighted in the 'Cross languages' section.

Uses TLS for end-to-end encryption and certificate-based authentication with a whitelist approach for revocation, detailed in the 'Auth & Security' section with step-by-step CA setup.

Implements distributed locking via servers like Zookeeper or Redis to prevent data races across nodes, ensuring exclusive access for critical operations as explained in the 'Distributed lock' section.

Represents currency in the smallest unit (e.g., cents for dollars) to avoid floating-point errors, following Martin Fowler's Money pattern for precise transactions.

Supports multiple payment gateways like Stripe and Braintree through a configurable interface, allowing easy addition of new providers by implementing a simple Go interface.