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Camunda Flow UI

Introduction

This frontend project is developed with React in Typescript. It uses material-ui components.

The main purpose is to create a generic user interface to run Camunda bpmn flows and interact with the buttons on the frontend to navigate through the defined process.

demo

BPMN file should be designed in a way that the frontend expects to find. For instance, user tasks should maintain 2 input parameters.

  • pageView : This should give the react component name to display. The react component must be located under src/process/${processDefinitionName}
  • options : This should give the button list to navigate in a comma separated format.

dns-issues-flow

If options are given empty, frontend displays a default button Next to move one.

How to run it

Download camunda 7 community edition from camunda website.

Untar downloaded file and update camunda-bpm-run-7.21.0/configuration/default.yaml to set camunda.bpm.run.cors parameters as below. This is required for running backend and frontend from different ports on localhost.

camunda.bpm:
  run:
    cors:
      enabled: true
      allowed-origins: "*"
      allowed-headers: "access-control-allow-methods, access-control-allow-origin, Origin, Accept, X-Requested-With, Content-Type, Access-Control-Request-Method, Access-Control-Request-Headers, Access-Control-Allow-Origin"
      preflight-maxage: 1800

Use the script in downloaded camunda folder to start camunda.

./start.sh

After cloning the project at your local, run below commands to start flow-ui.

cd camunda-flow-ui
npm install
npm start

You need to deploy the sample bpmn file in order to test it.

cd bpmn-flows
curl -H "Content-Type: multipart/form-data" -H "Connection: keep-alive" -F "deployment-name=dnsIssues" -F "deployment-source=dnsIssues" -F "*=@dnsIssues.bpmn" http://localhost:8080/engine-rest/deployment/create