PowerSync is a Postgres-SQLite sync layer, which helps developers to create local-first real-time reactive apps that work seamlessly both online and offline.

PowerSync Service

powersync-service is the monorepo for the core PowerSync service.

The service can be started using the public Docker image. See the image notes

Monorepo Structure: Packages

• packages/service-core

  • Core logic for the PowerSync backend server

• packages/jpgwire

  • Customized version of pgwire

• packages/jsonbig

  • Custom JSON and BigInt parser

• packages/rsocket-router

  • Router for reactive streams using RSocket

• packages/sync-rules

  • Library containing logic for PowerSync sync rules

• packages/types

  • Type definitions for the PowerSync service

Monorepo Structure: Libraries

• libs/lib-services

  • A light-weight set of definitions and utilities for micro services

Service

The PowerSync service code is located in the service folder. This project is used to build the journeyapps/powersync-service Docker image.

Developing

See the notes for local development instructions.