API Design, Development

This COURSE will NOT teach coding of REST API from scratch. Please do NOT enroll if that is your objective/Goal. Please check the audio of preview lectures before purchasing as some students have complained about low volume (fix is in works) Today Enterprises are using REST APIs for not just building mobile applications but also for: Creating new channels for partnership Building new revenue streams & business models Promoting their brands Just creating the API does not guarantee that the enterprise will be able to achieve the desired goals from API perspective. Adoption of API by developers depend on multiple aspects such as its utility, ease of use, performance, scalability, security. The API provider must apply best practices throughout the lifecycle of an API.

Please note that this course will NOT teach how to code REST API in NodeJS. Course is divided into 6 sections:

Lectures in this section will provide the outline of the course, discuss a case study (ACME Travel) that will be used as an example through the course, provide a list of tools used in the course.
2. REST API Concepts

Lectures in this section will cover the foundational concepts such as the evolution of RESTful API and the 6 architectural constraints.
3. Designing the REST API

Focus in this section is on best practices for designing the REST API. The approach taken in this section is to show how some of the popular API providers (E.g., Twitter, Facebook, Twilio ...) have designed their REST API. Some of the RESTful design aspect covered in this section are: Resources, CRUD implementation Error Handling, HTTP status codes Change management & Versioning Pagination, Partial responses To demonstrate the implementation aspects, a set of NodeJS based API is also implemented for a fictitious enterprise ACME Travels.

Commonly used BasicAuth standard is not the best way to implement API security. In this section student will learn the commonly adopted Authentication and Authorization schemes used for REST API Tokens (Jason Web Tokens or JWT) Key/Secret OAuth 2.0 (Using Spotify implementation as a reference) When an API is exposed by an enterprise to the public internet, it poses a risk to the enterprise as hackers may use the vulnerabilities in the API to launch attacks against the enterprise. There are multiple types of such Functional attacks that the API provider must consider. You will learn about the common attacks and the best practices for protecting the API.

This section will begin with the description of Collaborative specifications development process & benefits of adopting contract first approach. Students will learn Swagger 2.0 specification standard How to create REST API specifications in YAML format Tools options for Swagger specs editing Benefits of Swagger 2.0 Demonstration of how specifications are leveraged by common platforms such as Apigee, Mulesoft & IBM API Connect As part of the lectures, a complete specification will be created for ACME Vacations. At the end of this section student will be able to write Swagger/OAI specifications for their own API.

API management is the process of publishing, documenting and overseeing application programming interfaces (APIs) in a secure, scalable environment. Lectures in this section cover the details of the following activities that an API provider carry out within the scope of API management. Lifecycle management Developer productivity Developer portal Security Traffic management Analytics Productization Monetization (API Economy) APIgee, IBM API Connect & Mulesoft platforms will be used for demonstrating the various API management aspects discussed in the lectures. Students are encouraged to try out these platforms on their own to get a good feel of what API management platforms bring to table. The three platforms offer a free trial version that can be used for testing.

Design and Develop RESTful API by applying the best practices & REST constraints Create practices for API security, versioning, lifecycle management, documentation and other important aspects Write specifications in Swagger2.0/OAI specifications in YAML format Create an API management strategy for your enterprise Leverage some of the common API management platforms for building API proxies (APIGEE, IBM API Connect, Mulesoft Anypoint)

Introduction to the Author and the Course Summary decks download link for the course ACME Travels - Case study Tools for Design, Development,Testing and Management or REST API Crash course on MongoLabs

What is an API Evolution of REST/JSON API Introduction to RESTful API API 101 Private, Public and Partner API

Introduction to REST Architecture Constraints REST API Architectural Constraint - Client Server REST API Architectural Constraint - Uniform Interface REST API Architectural Constraint - Statelessness REST API Architectural Constraint - Caching REST API Architectural Constraint - Layered System REST API Architectural Constraint - Code On Demand Richardson Maturity Model for REST API REST API Architectural Constraints

API Value Chain Practices for Resource Names, Actions & Associations Implementing REST API CRUD operations Walkthrough: Creating a Vacations API in Node JS REST API Error Handling Practices Implement REST API Walkthrough: Implementation of error handling for POST API REST API Error Handling Handling changes to API Versioning the API API Caching (1 of 2) Concepts & Design decisions API Caching (2 of 2) Cache Control Directive Demo - API Caching using Cache-Control Directives API Caching Building support for Partial Responses Building support for Pagination Building support for Partial Responses & Pagination

REST API Security - Introduction Securing API with Basic Authentication API Basic Authentication Securing API with Tokens & JWT API Token based Authentication & JWT Securing API with API Key & Secret API Keys and Secret API Authorization using OAuth2.0 API Authorization OAuth2.0 API Security - Functional Attack

Requirements Analysis Process & Intro to REST Specifications REST API Specifications Swagger/OAI Specifications Walkthrough Introduction to Swagger/OAI specifications Swagger/OAI Specifications, Part 1 of 3 Structure & Elements of Swagger/OAI specifications Swagger/OAI Specifications, Part 2 of 3 Structure & Elements of Swagger/OAI specifications (2/3) Swagger/OAI Specifications, Part 3 of 3 Structure & Elements of Swagger/OAI specifications (3/3)

Introduction to API Management API Lifecycle & Developer Productivity API Developer Portal API Security Management API Traffic Management API Analytics API Product and API Monetization