HTTP Codes
All HTTP codes are separated in to five categories The first digit of the status code defines the class of response, while the last two digits don't have any classifying or categorization role.
- 1xx Informational Response - The request was received, continuing process.
- 2xx Successful - The request was successfully received, understood and accepted.
- 3xx Redirection - Further actions need to be taken in order to complete the request.
- 4xx Client Error - The request contains bad syntax or cannot be fulfilled.
- 5xx Server Error - The server failed to fulfil an apparently valid request.
Examples:
Reference:
https://www.restapitutorial.com/httpstatuscodes.html
https://en.wikipedia.org/wiki/List_of_HTTP_status_codes
- 1xx Informational Response - The request was received, continuing process.
- 2xx Successful - The request was successfully received, understood and accepted.
- 3xx Redirection - Further actions need to be taken in order to complete the request.
- 4xx Client Error - The request contains bad syntax or cannot be fulfilled.
- 5xx Server Error - The server failed to fulfil an apparently valid request.
Express.js
Express.js or Express is a web application framework for Node.js, released as free open source software under MIT license. It is used to design web applications and APIs. It has been called the de facto standard server framework for Node.js.
Reference: https://en.wikipedia.org/wiki/Express.js
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