haveno/docs/developer-guide.md
2021-11-22 08:02:24 -05:00

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# Developer Guide
This document is a guide for Haveno development.
## Installing Haveno
In order to develop for Haveno, first [install and run a local Haveno test network](installing.md).
## Running the UI proof of concept
Follow [instructions](https://github.com/haveno-dex/haveno-ui-poc#run-in-a-browser) to run Haveno's UI proof of concept in a browser.
This proof of concept demonstrates using Haveno's gRPC server with a web frontend (react and typescript) instead of Bisq's JFX application.
## Importing Haveno into development environment
Follow [instructions](import-haveno.md) to import Haveno into a development environment.
## Running end-to-end API tests
Follow [instructions](https://github.com/haveno-dex/haveno-ui-poc#run-tests) to run end-to-end API tests in the UI project.
## Adding new API functions and tests
1. Follow [instructions](https://github.com/haveno-dex/haveno-ui-poc#run-tests) to run Haveno's existing API tests successfully.
2. Define the new service or message in Haveno's [protobuf definition](../proto/src/main/proto/grpc.proto).
3. Clean and build Haveno after modifying the protobuf definition: `make clean && make`
4. Implement the new service in Haveno's backend, following existing patterns.<br>
For example, the gRPC function to get offers is implemented by [`GrpcServer`](https://github.com/haveno-dex/haveno/blob/master/daemon/src/main/java/bisq/daemon/grpc/GrpcServer.java) > [`GrpcOffersService.getOffers(...)`](https://github.com/haveno-dex/haveno/blob/b761dbfd378faf49d95090c126318b419af7926b/daemon/src/main/java/bisq/daemon/grpc/GrpcOffersService.java#L104) > [`CoreApi.getOffers(...)`](https://github.com/haveno-dex/haveno/blob/b761dbfd378faf49d95090c126318b419af7926b/core/src/main/java/bisq/core/api/CoreApi.java#L128) > [`CoreOffersService.getOffers(...)`](https://github.com/haveno-dex/haveno/blob/b761dbfd378faf49d95090c126318b419af7926b/core/src/main/java/bisq/core/api/CoreOffersService.java#L126) > [`OfferBookService.getOffers()`](https://github.com/haveno-dex/haveno/blob/b761dbfd378faf49d95090c126318b419af7926b/core/src/main/java/bisq/core/offer/OfferBookService.java#L193).
5. Build Haveno: `make`
6. Update the gRPC client in haveno-ui-poc: `npm install`
7. Add the corresponding typescript method(s) to [HavenoDaemon.ts](https://github.com/haveno-dex/haveno-ui-poc/blob/master/src/HavenoDaemon.ts) with clear and concise documentation.
8. Add clean and comprehensive tests to [HavenoDaemon.test.ts](https://github.com/haveno-dex/haveno-ui-poc/blob/master/src/HavenoDaemon.test.ts), following existing patterns.
9. Verify the tests with `npm run test -- -t 'my test'` to run tests by name and `npm test` to run all tests together.
10. Open a pull request for review.
## Trade Protocol
For documentation of the trade protocol, see [trade protocol](trade_protocol/trade-protocol.pdf).