Useful Resources

API / RESTful Design

Roy Fielding, "Architectural Styles and the Design of Network-based Software Architectures "

REST API Design Guide, National Bank Belgium

Simple Rails JSON API (incl. many-to-many relationships)

Many-to-Many Relationships in Rails (Jeff Thomas)

Authentication

Token-Based Authentication in Rails

Angular

Rails

APIs on Rails by Abraham Kuri (Rails 4)

General (Domain knowledge, etc.)

Oracle: Defining Units of Measure Classes