BPMN for Node.js
source link: https://github.com/ralphhanna/bpmn-server
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bpmn-server
Introduction
BPMN 2.0 Modeling, Execution and Persistence, an open source Workflow Server for Node.js
Table of Contents
Documentation
Process modeller
A web based modeler is included based on http://bpmn.io , models definitions are saved at your server
Process Execution
bpmn-server provides an bpmnEngine to execute your workflow definition supporting most of BPMN 2.0 elements
Process Server
provides an environment to presist execution Instances while running and communicate with your application.
Applications can monitor and communicate to Instances whether they are running or offline, allowing user interface to query and process Workflow steps
Data Queries
Since instances are saved in MongoDB you can easily query your instances (running or completed)
Sample Web App
Included is a sample web application (running Node.js and Express.js) to allow you to visualize your workflow
Installation
This package requires Node.js and an access to MongoDB
- Create new Folder $ mkdir myBPMN $ cd myBPMN
- npm:
$ npm install bpmn-server 3) copy WebApp folder
$ cp node_modules/bpmn-server/WebApp/. ./ -r
-
Edit configuration file to have MongoDB point to your server or free cloud account
-
run the app
node app
Demo
a full demo site is available @ http://bpmn.omniworkflow.com
Example
import { BPMNServer } from '../src/BPMNServer'; const config = require('../configuration.js').configuration; test(); async function test() { let name = 'Buy Used Car'; server = new BPMNServer(config); let execution = await server.execute(name, {user:'rhanna'}, { caseId: 999 }); let instance = execution.instance; let items = execution.instance.items; console.log(items);
for more complete examples see Examples
Acknowledgments
The bpmn-server resides upon the excellent library bpmn-io/bpmn-moddle developed by bpmn.io
The bpmn-server is inspired by the library bpmn-engine
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