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* RPC GetPaymentsStream This introduces a new feature to the ArkService API that allows clients to subscribe to payment events. Here's a breakdown of the changes: 1. **OpenAPI Specification (`service.swagger.json`):** - A new endpoint `/v1/payments` is added to the API, supporting a `GET` operation for streaming payment events. - New definitions `v1GetPaymentsStreamResponse`, `v1RoundPayment`, and `v1AsyncPayment` are added to describe the structure of the streaming responses. 2. **Protobuf Definition (`service.proto`):** - Added a new RPC method `GetPaymentsStream` that streams `GetPaymentsStreamResponse` messages. - Defined new message types: `GetPaymentsStreamRequest`, `GetPaymentsStreamResponse`, `RoundPayment`, and `AsyncPayment`. 3. **Generated Protobuf Code (`service.pb.go`, `service.pb.gw.go`, `service_grpc.pb.go`):** - The generated code is updated to include the new RPC method and message types. - The gateway code includes functions to handle HTTP requests and responses for the new streaming endpoint. 4. **Application Logic (`covenant.go`, `covenantless.go`):** - New payment events channels are introduced (`paymentEventsCh`). - Payment events are propagated to these channels when a round is finalized or an async payment is completed. - New event types `RoundPaymentEvent` and `AsyncPaymentEvent` are defined, implementing a `PaymentEvent` interface. 5. **gRPC Handlers (`arkservice.go`):** - Added logic to handle `GetPaymentsStream` requests and manage payment listeners. - A new goroutine is started to listen to payment events and forward them to active listeners. Overall, this patch extends the ArkService to support real-time streaming of payment events, allowing clients to receive updates on both round payments and async payments as they occur. * Move emit events in updateVtxoSet & Use generics and parsers (#1) * Move sending event to updateVtxoSet * Use generics and parsers * pr review refactor * pr review refactor * fix --------- Co-authored-by: Pietralberto Mazza <18440657+altafan@users.noreply.github.com>