Graph based customized application development and management system

A computing apparatus comprising:

• a processor;
• and
• a memory storing instructions that, when executed by the processor, configure the apparatus to perform a workflow represented by a directed graph, the instructions being generated by:
• providing the directed graph having vertices and directed edges connecting respective pairs of the vertices, the directed graph representing the workflow, the vertices being associated with respective predefined tasks in the workflow, and the directed edges representing transitions and/or dataflow between the predefined tasks;
• modifying the predefined tasks based on parameters received from a developer to customize implementations of the predefined tasks;
• retrieving application programming interfaces (APIs) that implement the predefined tasks;
• and
• integrating the APIs using a workflow orchestration engine to provide executable instructions,
• wherein the workflow orchestration engine further coordinates:
• dynamically rendering, during execution of a user task, a user interface (UI) generated by reconstructing a schema via a renderer library,
• publishing granular execution events corresponding to state transitions of the workflow to an event broker and consuming the granular execution events at a data consumer, and
• monitoring execution of the executable instructions to generate performance data associated with individual vertices of the directed graph,
• wherein each granular execution event reflects execution of a vertex within the workflow.