Expanding your Application’s Audience with Jarvis

Jarvis is Dyalog’s APL-based API framework that enables developers to expose APL functionality as web services and APIs. Whether you’re building microservices, creating RESTful APIs, or exposing computational services, Jarvis provides the tools to make your APL code accessible.

JSON and REST support:

• JSON mode – expose APL functions directly as callable API endpoints with JSON payloads.
• REST mode – build resource-oriented APIs following REST principles. with full HTTP verb support.

A Jarvis API can be consumed by almost any type of client. For example:

• other microservices
• APL applications (using HttpCommand)
• JavaScript front ends
• directly from Python, C#, Java, and so on
• mobile apps and browser-based UIs
• CLI tools, for example, curl

UI-agnostic design:

• Jarvis doesn’t handle UI directly but rather it returns structured data, letting API consumers handle presentation.

With the release of JAWS (Jarvis and web sockets), Jarvis enables asynchronous delivery of services, making it even more flexible.

In this hands-on workshop you will:

• get an overview of Jarvis
• implement your own simple web service
• add an asynchronous aspect to your web service

Assumed knowledge: Working knowledge of APL (ideally, but not necessarily, Dyalog APL)