Status Code Classes

/**
 * Status classes object providing classification for HTTP status codes
 */
interface StatusClasses {
  // Class identifiers - return class names
  "1xx": "Informational";
  "2xx": "Successful";
  "3xx": "Redirection";
  "4xx": "Client Error";
  "5xx": "Server Error";
  
  // Class name constants - return class identifiers
  INFORMATIONAL: "1xx";
  SUCCESSFUL: "2xx";
  REDIRECTION: "3xx";
  CLIENT_ERROR: "4xx";
  SERVER_ERROR: "5xx";
  
  // Class names - return uppercase constant names
  "1xx_NAME": "INFORMATIONAL";
  "2xx_NAME": "SUCCESSFUL";
  "3xx_NAME": "REDIRECTION";
  "4xx_NAME": "CLIENT_ERROR";
  "5xx_NAME": "SERVER_ERROR";
  
  // Class messages - return descriptive messages
  "1xx_MESSAGE": "Indicates an interim response for communicating connection status or request progress prior to completing the requested action and sending a final response.";
  "2xx_MESSAGE": "Indicates that the client's request was successfully received, understood, and accepted.";
  "3xx_MESSAGE": "Indicates that further action needs to be taken by the user agent in order to fulfill the request.";
  "4xx_MESSAGE": "Indicates that the client seems to have erred.";
  "5xx_MESSAGE": "Indicates that the server is aware that it has erred or is incapable of performing the requested method.";
}

import status from "http-status";

// Access class information
console.log(status.classes["2xx"]); // "Successful"
console.log(status.classes.SUCCESSFUL); // "2xx"
console.log(status.classes["2xx_NAME"]); // "SUCCESSFUL"
console.log(status.classes["2xx_MESSAGE"]); // "Indicates that the client's request was successfully received..."

// Use in switch statements for status code classification
const responseCode = 404;
const statusClass = status[`${responseCode}_CLASS`];

switch (statusClass) {
  case status.classes.INFORMATIONAL:
    console.log("Informational response");
    break;
  case status.classes.SUCCESSFUL:
    console.log("Success");
    break;
  case status.classes.REDIRECTION:
    console.log("Redirection required");
    break;
  case status.classes.CLIENT_ERROR:
    console.log("Client error");
    break;
  case status.classes.SERVER_ERROR:
    console.log("Server error");
    break;
}

interface InformationalClass {
  "1xx": "Informational";
  INFORMATIONAL: "1xx";
  "1xx_NAME": "INFORMATIONAL";
  "1xx_MESSAGE": "Indicates an interim response for communicating connection status or request progress prior to completing the requested action and sending a final response.";
}

interface SuccessfulClass {
  "2xx": "Successful";
  SUCCESSFUL: "2xx";
  "2xx_NAME": "SUCCESSFUL";
  "2xx_MESSAGE": "Indicates that the client's request was successfully received, understood, and accepted.";
}

interface RedirectionClass {
  "3xx": "Redirection";
  REDIRECTION: "3xx";
  "3xx_NAME": "REDIRECTION";
  "3xx_MESSAGE": "Indicates that further action needs to be taken by the user agent in order to fulfill the request.";
}

interface ClientErrorClass {
  "4xx": "Client Error";
  CLIENT_ERROR: "4xx";
  "4xx_NAME": "CLIENT_ERROR";
  "4xx_MESSAGE": "Indicates that the client seems to have erred.";
}

interface ServerErrorClass {
  "5xx": "Server Error";
  SERVER_ERROR: "5xx";
  "5xx_NAME": "SERVER_ERROR";
  "5xx_MESSAGE": "Indicates that the server is aware that it has erred or is incapable of performing the requested method.";
}