https://github.com/rohitpshelar/camunda8-gradle
Sample of camunda 8 with spring boot ( Gradle ), Java 21 and H2DB ( On Disk )
https://github.com/rohitpshelar/camunda8-gradle
camunda-8 docker gradle h2db java-21 spring-boot-3
Last synced: 3 months ago
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Sample of camunda 8 with spring boot ( Gradle ), Java 21 and H2DB ( On Disk )
- Host: GitHub
- URL: https://github.com/rohitpshelar/camunda8-gradle
- Owner: rohitpshelar
- Created: 2025-06-18T11:49:16.000Z (about 1 year ago)
- Default Branch: main
- Last Pushed: 2025-07-15T05:00:54.000Z (about 1 year ago)
- Last Synced: 2025-08-24T01:34:35.358Z (11 months ago)
- Topics: camunda-8, docker, gradle, h2db, java-21, spring-boot-3
- Language: Java
- Homepage:
- Size: 71.3 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Camunda 8 Gradle Integration
This project demonstrates how to integrate Camunda 8 with a Spring Boot application using Gradle. It covers both SaaS and self-managed deployments, task handling, variables, and connectors.
## Table of Contents
- [Deployment Options](#deployment-options)
- [SaaS (Cloud) Deployment](#saas-cloud-deployment)
- [Self-Managed Deployment](#self-managed-deployment)
- [Task Types](#task-types)
- [User Task](#user-task)
- [Service Task](#service-task)
- [Variables Handling](#variables-handling)
- [Connectors](#connectors)
- [Inbound Connectors](#inbound-connectors)
- [Outbound Connectors](#outbound-connectors)
## Deployment Options
### SaaS (Cloud) Deployment
1. **Set up Camunda Cloud**
- Go to [Camunda Get Started](https://camunda.com/fr/get-started/)
- Login at [Camunda Cloud Login](https://weblogin.cloud.camunda.io/)
- Create a new cluster and generate API credentials (Client ID and Secret)
2. **Create Spring Boot Application**
- Use [Spring Initializr](https://start.spring.io/)
- Add Camunda dependency:
```gradle
implementation 'io.camunda.spring:spring-boot-starter-camunda:8.5.19'
```
- Test with: `http://localhost:8080/actuator`
- Configure Camunda Module with your cluster credentials
### Self-Managed Deployment
1. **Install Docker**
- Download from [Docker Desktop for Windows](https://docs.docker.com/desktop/setup/install/windows-install/) (~500MB)
- Complete the installation process
2. **Set up Camunda**
- Choose a version from [Camunda Distributions](https://github.com/camunda/camunda-distributions/tree/main/docker-compose/versions)
- Run:
```bash
docker-compose -f docker-compose-core.yaml up -d
```
- Access components with default credentials:
- Username: `demo`
- Password: `demo`
## Task Types
### User Task
- Sample BPMN: [`sample.bpmn`](src/main/resources/sample.bpmn)
- Deployable via Camunda Modeler or programmatically
### Service Task
- Sample BPMN: [`service-task-session.bpmn`](src/main/resources/service-task-session.bpmn)
- Requires job type definition
- Implementation: [`ProductOrder.java`](src/main/java/com/example/camunda8_gradle/worker/ProductOrder.java)
- Automatically executes when task is completed
## Variables Handling
- Methods sending data to Camunda must have return types
- Methods reading data should use `@Variable` annotation
- Example in [`ProductOrder.java`](src/main/java/com/example/camunda8_gradle/worker/ProductOrder.java)
## Connectors
### Inbound Connectors (External System → Camunda)
- **Webhook Implementation**: [`webhook-inbound-connector.bpmn`](src/main/resources/webhook-inbound-connector.bpmn)
- Tested with Postman: [`Camunda8-Gradle.postman_collection.json`](Camunda8-Gradle.postman_collection.json)
##### URL Formats:
- **SaaS**:
`http(s)://.connectors.camunda.io/<..cloud.cluster-id>/inbound/`
- **Local**:
`http://localhost:8085/inbound/`
### Outbound Connectors (Camunda → External System)
---
For more information, visit the [official Camunda website](https://camunda.com/).