Need to integrate flowable in existing web application

Step 1: Workflow Diagram is created in my own web app
Step 2: That needs to be converted to the flowable understandable format

Step 3: That needs to be deployed on flowable using Rest API
Step 4: deployment Id will be saved in our app

See: Flowable’s REST API - Part 1

Step 5: Once we start the process of flowable then flowable should able to communicate to our api to do some process

See: Http Task

Step 6: After first step execution our system will send response data to flowable api

See: Angular HttpClient

Step 7: Flowable api should able to communicate to our web api

See: REST API