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Express JS Rest API Tutorial
The document introduces Express.js as a high-performance Node.js framework for building APIs and web applications, emphasizing its flexibility and lightweight nature. It explains REST APIs as a widely used architecture for web services that facilitates data exchange between applications through standard HTTP request types like GET, POST, PATCH, and DELETE. The content is aimed at helping users understand the creation and functionality of RESTful APIs.
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This slide introduces REST APIs as a standard for data exchange in web services and covers the flexibility and popularity of RESTful API.
Explains REST APIs, highlighting their standard role in web services for data exchange and their flexibility to handle various call types.
Defines Express JS, emphasizing it as a Node.js framework for building APIs and web applications, noting its performance and lightweight nature.
Describes REST as an architecture for web services and explains APIs as software enabling communication between applications.
Details the four main HTTP request types: GET, PATCH, POST, and DELETE, and explains their purposes in data handling.
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Express JS Rest API Tutorial
- 2. What's in itfor you? • Introduction • What is Express JS? • What is REST API? • HTTP request types • Building RESTful API
- 3. Introduction • REST APIsare the standard way to send and receive data for web services • Rest API is flexible and can handle multiple types of calls • RESTful API is very popular and very commonly used to create APIs for web- based applications Client REST API DATABASE
- 4. What is ExpressJS? Express is a Node.js framework designed for building APIs, web applications and cross-platform mobile apps, It is used as a server- side scripting language. Express is high performance, fast, lightweight, and unopinionated
- 5. What is RESTAPI? • REpresentational State Transfer (REST) is a popular architecture which is used to create web services • Application Program Interface (API) is a code that allows two software programs to communicate with each other It is a software that allows two applications to communicate with each other with the help of internet and various devices
- 6. HTTP Request types GET– It is used to request data from the server but mainly this method is used to read data PATCH – It is used to update the data, or to change/replace it POST – Post method is used to create new or to edit already existing data DELETE – It is used to delete the data completely from the server GET PATCH POST DELETE CLIENT sends a request Server sends a response HTTP JSON