How to programmatically deploy a process definition by rest api

mittalramsharan · February 16, 2022, 11:17am

I have created a spring-boot application from https://start.camunda.com/ . and I put the following class for a rest API in same code so that it can register process. I hit rest(/test) end and it should be showing process definition in cockpit but it is not working and also giving any error too when hitting same API again and again:

package com.example.workflow.rest;

import org.camunda.bpm.engine.ProcessEngines;
import org.camunda.bpm.model.bpmn.Bpmn;
import org.camunda.bpm.model.bpmn.BpmnModelInstance;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class ApplicationResource {


  @GetMapping("/test")
  public String restResource() {
    BpmnModelInstance modelInstance = Bpmn.createProcess()
        .name("Example process")
        .executable()
      .startEvent()
      .userTask()
        .name("Some work to do")
      .endEvent()
      .done();
    ProcessEngines.getDefaultProcessEngine().getRepositoryService().createDeployment()
    .addModelInstance("test", modelInstance).deploy();
    return "hi";
  }

}

mrdavoodi64 · February 16, 2022, 2:55pm

Hi @mittalramsharan

I read about it at the following link

github.com

camunda/camunda-bpm-examples/blob/master/bpmn-model-api/generate-process-fluent-api/src/test/java/org/camunda/bpm/quickstart/CreateInvoiceProcessTest.java

/*
 * Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
 * under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership. Camunda licenses this file to you under the Apache License,
 * Version 2.0; you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.camunda.bpm.quickstart;

import java.util.HashMap;
import java.util.Map;

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Hope this helps you

mittalramsharan · February 17, 2022, 5:34am

what I am missing here that after I run my rest end. I am not able to see process definition in Camunda’s cockpit.