web

Streamlet Web

The streamlet web project enables creating web services for streamlet BPMN processes. The goal is to enable out of the box web services for an executable BPMN process. Additionally, it should enable customization as needed for specific processes with additional backend, debugging, and other end points.

It provides backend APIs for the following:

• Starting process instances
• Listing running process instances
• Listings available tasks
• Completing tasks

It also provides a simple debug web interface for the following:

• Listing running process instances
• Listing available tasks
• Limited support for completing tasks

Getting Started

Streamlet web uses a command line tool to generate the go code for a streamlet web service.

1. Install the stream service strmsrv command:

go install gitlab.com/gostreamlet/web/app/cmd/strmsrv

1. Install dependencies:

go get gitlab.com/gostreamlet/web

1. From the root of a streamlet project:

strmsrv init

1. Start the web service for the process:

go run app\service\main.go

The service listens by default on localhost:8081

REST API

The following endpoints are exposed by default for each process definition id:

• Start a process instance: [POST]/[process definition id]/start
• Get a list of current process instances: [GET]/[process definition id]/processinstances
• Get a list of tasks: [GET]/[process definition id]/tasks
• Comple a task [POST]/[process definition id]/tasks/complete
• Debug page listing process instances: [GET]/[process definition id]/debug/processinstances
• Debug page listing tasks: [GET]/[process definition id]/debug/tasks

Examples

Detailed examples may be found in the examples project:

https://gitlab.com/gostreamlet/examples

License

License information to come.