Workflow ES

Workflow ES is a workflow / saga library for Node.js (or modern browsers). It supports pluggable persistence and concurrency providers to allow for multi-node clusters.

Installing

Install the core npm package "workflow-es"

npm install workflow-es --save

Guides

• Javascript (ES6)
• Typescript

Persistence

Since workflows are typically long running processes, they will need to be persisted to storage between steps. There are several persistence providers available as seperate npm packages.

• Memory Persistence Provider (Default provider, for demo and testing purposes)
• MongoDB
• (more to come soon...)

Multi-node clusters

By default, the WorkflowHost service will run as a single node using the built-in queue and locking providers for a single node configuration. Should you wish to run a multi-node cluster, you will need to configure an external queueing mechanism and a distributed lock manager to co-ordinate the cluster. These are the providers that are currently available.

Queue Providers

• SingleNodeQueueProvider (Default built-in provider)
• Azure
• Redis

Distributed lock managers

• SingleNodeLockProvider (Default built-in provider)
• Azure
• Redis Redlock

Authors

• Daniel Gerlag - Initial work

License

This project is licensed under the MIT License - see the LICENSE.md file for details