As we have seen throughout this book, we can build integration workflows powered by Logic Apps, Microsoft Flow, or Power Apps without having any hand in the code. In this section, we will discuss how we can leverage existing APIs and make standard custom connectors to connect integration platforms and services, whether they are cloud resources or on-premises applications.
To get started with the custom connector, we have created a Gremlin API to connect with a Cosmos graph database using the Gremlin.Net library. To find out more about graph databases and the Gremlin query language, you can read through the Cosmos DB documentation available at https://docs.microsoft.com/en-us/azure/cosmos-db/graph-introduction.
The Gremlin custom API performs create, retrieve, update, and delete (CRUD) operations on graph nodes (documents) with the Gremlin...