A code-first healthcare integration engine for Node.js. Channels are YAML files in git, transforms are TypeScript functions, and both are tested like any other code.
Pathways is early. We are building it in the open, and it is not released yet. The package is not on npm, and nothing here is ready to run.
- Channels in git. A channel is a YAML file that wires a source to its destinations. Its transform is a TypeScript file that receives the parsed message and returns what to send.
- Formats. HL7 v2, FHIR, X12, and C-CDA arrive parsed, through Cosyte's open-source
@cosyte/*libraries. Anything else passes through as text or JSON. - Connectors. MLLP, HTTP, and files, in and out.
- Nothing lost. Every message is stored before it is acknowledged. When a destination is down, Pathways retries and keeps that destination's messages in order. A failed message can be replayed once the transform is fixed.
- Storage. SQLite to start with no setup; PostgreSQL, MySQL or MariaDB, and SQL Server for production.
- Tests.
pathways testwill run synthetic messages through a channel and compare the output with saved snapshots. - Security controls. TLS in transit, encryption at rest, an audit log of operator actions, and no message contents in logs or errors. Compliance is a property of how an organization runs software, so we describe the controls Pathways provides rather than claim compliance for it.
Today the repository holds working slices; nothing is released yet:
- Sources and destinations for MLLP, HTTP, and files, over TLS by default, with a bearer token or mutual TLS on every endpoint that listens.
- HL7 v2, FHIR R4 JSON, X12, C-CDA, JSON, and text, each parsed for a TypeScript transform that runs in its own worker thread.
- Storage on SQLite, PostgreSQL, MySQL or MariaDB, and SQL Server, with every stored message encrypted at rest.
- An audit log of every operator action, and the commands to inspect, replay, and clear messages.
- Your own connectors, hooks, storage, and key providers, loaded from YAML.
- A health endpoint, a Docker image, and the
pathways init,pathways start, andpathways testcommands.
Watch or star the repository to follow along.