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