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https://github.com/186526/handlers.js
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Added NodePlatformAdapter and fixed bug in platform independent functions and added Demo.
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141
demo/errorHandler.ts
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141
demo/errorHandler.ts
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// From https://gist.github.com/186526/82b7372619fb4b029568040ee4a4aa44, Open source with MIT license
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import { response, request } from "..";
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import { defaultHeaders } from "../src/interface/response";
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function uuid(): string {
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const s: any[] = [];
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const hexDigits = "0123456789abcdef";
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for (let i = 0; i < 36; i++) {
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s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1);
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}
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s[14] = "4"; // bits 12-15 of the time_hi_and_version field to 0010
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s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1); // bits 6-7 of the clock_seq_hi_and_reserved to 01
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s[8] = s[13] = s[18] = s[23] = "-";
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const uuid = s.join("");
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return uuid;
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}
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const codeAlternative = {
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100: "Continue",
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101: "Switching Protocols",
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102: "Processing",
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103: "Early Hints",
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200: "OK",
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201: "Created",
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202: "Accepted",
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203: "Non-Authoritative Information",
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204: "No Content",
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205: "Reset Content",
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206: "Partial Content",
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207: "Multi Status",
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208: "Already Reported",
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226: "IM Used",
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300: "Multiple Choices",
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301: "Moved Permanently",
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302: "Found",
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303: "See Other",
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304: "Not Modified",
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305: "Use Proxy",
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306: "Switch Proxy",
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307: "Temporary Redirect",
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308: "Permanent Redirect",
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400: "Bad Request",
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401: "Unauthorized",
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402: "Payment Required",
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403: "Forbidden",
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404: "Not Found",
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405: "Method Not Allowed",
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406: "Not Acceptable",
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407: "Proxy Authentication Required",
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408: "Request Time-out",
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409: "Conflict",
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410: "Gone",
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411: "Length Required",
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412: "Precondition Failed",
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413: "Request Entity Too Large",
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414: "Request-URI Too Large",
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415: "Unsupported Media Type",
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416: "Requested Range not Satisfiable",
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417: "Expectation Failed",
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418: "I'm a teapot",
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421: "Misdirected Request",
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422: "Unprocessable Entity",
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423: "Locked",
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424: "Failed Dependency",
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426: "Upgrade Required",
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428: "Precondition Required", // RFC 6585
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429: "Too Many Requests",
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431: "Request Header Fields Too Large", // RFC 6585
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451: "Unavailable For Legal Reasons",
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500: "Internal Server Error",
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501: "Not Implemented",
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502: "Bad Gateway",
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503: "Service Unavailable",
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504: "Gateway Time-out",
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505: "HTTP Version not Supported",
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506: "Variant Also Negotiates",
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507: "Insufficient Storage",
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508: "Loop Detected",
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510: "Not Extended",
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511: "Network Authentication Required",
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};
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const template: string =
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'<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1" /><meta name="renderer" content="webkit" /><meta name="force-rendering" content="webkit" /><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" /><link rel="preconnect" href="https://fonts.gstatic.com"><link href="https://fonts.googleapis.com/css2?family=Google+Sans&family=Fira+Mono&family=Ubuntu&display=swap" rel="stylesheet"><title>${statusCode} | ${codeAlternative}</title><link href="https://fonts.googleapis.com/icon?family=Material+Icons+Outlined" rel="stylesheet"><style type="text/css">:root{ --background-color: #fff; --font-color: #000; --font-color-lighter: rgb(87, 89, 88); --font-size-main: 3.545rem; --font-size-description: 1.245rem; --box-color: #F2F2F2; --working-color: #137333; --working-color-background: #e6f4ea; --error-color-background: #fce8e6; --error-color: #c5221f; --working-with-error-color: #b05a00; --working-with-error-color-background: #fef7e0; --icon-size: 48px;} body{ margin: 2rem 2rem; font-family: Google Sans, Ubuntu, Roboto, Noto Sans SC, sans-serif; color: var(--font-color); background-color: var(--background-color);} nav{ margin-left: 1rem;} nav description{ font-family: Ubuntu, Roboto, Noto Sans SC, sans-serif; font-size: var(--font-size-description); line-height: var(--fonr-size-description); color: var(--font-color-lighter);} nav main{ font-size: var(--font-size-main); line-height: var(--font-size-main); font-family: Fira Mono, Ubuntu, monospace;} code{ font-family: Fira Mono, monospace;} status{ margin-top: 2.5rem; display: flex; flex-direction: row; flex-wrap: wrap; justify-content: center; align-items: center;} status block.status-block{ background-color: var(--box-color); padding: 2rem; margin: 1rem 1rem; min-height: 3rem; border-radius: 9px; flex-grow: 1;} status block.status-block.working-block{ background-color: var(--working-color-background);} status block.status-block.error-block{ background-color: var(--error-color-background);} status block.status-block.working-with-error-block{ background-color: var(--working-with-error-color-background);} .status-block main{ font-size: calc(var(--font-size-description) + 0.1rem);} .status-working{ color: var(--working-color);} .status-error{ color: var(--error-color);} .status-working-with-error{ color: var(--working-with-error-color);} icon{ font-size: var(--icon-size) !important;} a{ text-decoration: none; color: #1967d2;} reason{ display: flex; flex-direction: row; flex-wrap: wrap; justify-content: space-between; align-items: center;} reason>*{ display: block; margin: 1rem; flex-grow: 1; max-width: 40%;} reason main{ font-size: calc(var(--font-size-description) + 0.2rem); font-weight: 550;} footer{ margin: 1rem; color: var(--font-color-lighter); font-size: calc(var(--font-size-description) - 0.4rem);} footer>request-status{ font-size: calc(var(--font-size-description) - 0.6rem);} footer>*{ display: block;} @media screen and (max-width:480px){ body{ margin: 6rem 2rem;} :root{ --font-size-main: 3.0rem; --font-size-description: 1.045rem;} reason>*{ max-width: 100%;} footer{ font-size: calc(var(--font-size-description) - 0.2rem);} footer>request-status{ font-size: calc(var(--font-size-description) - 0.4rem);}} @media screen and (min-width: 768px){ body{ margin: 8% 10%;} nav *{ display: inline-block; margin-left: 1%;}} @media (prefers-color-scheme: dark){ :root{ --font-color: rgba(255, 255, 255, 0.86); --font-color-lighter: rgba(255, 255, 255, 0.4); --background-color: rgb(0, 0, 0); --box-color: rgb(40 40 40 / 73%); --working-color-background: #07220f; --error-color-background: #270501; --working-with-error-color-background: #392605;}} </style></head><body><nav><main>${statusCode}</main><description>${codeAlternative}</description></nav><status><block class="status-block ${clientStatusShort}-block" id="client-status-block"><icon class="material-icons-outlined status-${clientStatusShort}">web</icon><main>Your Client</main><status-text class="status-${clientStatusShort}">${clientStatus}</status-text></block><block class="status-block working-block" id="edge-status-block"><icon class="material-icons-outlined status-working">alt_route</icon><main>Handlers.JS</main><status-text class="status-working">Working </block><block class="status-block ${ServerStatusLowerCase}-block" id="website-status-block"><icon class="material-icons-outlined status-${ServerStatusLowerCase}">widgets</icon><main>Route</main><status-text class="status-${ServerStatusLowerCase}">${ServerStatus}</status-text></block></status><reason><explain><main>${codeAlternative}</main><p>${explain} </p></explain><howto><main>What can I do?</main><p>${howto} </p></howto></reason><footer><provider>Running with <a href="https://git.186526.xyz/186526/handlers.js">Handlers.JS</a>.</provider><br><request-status>Your IP is <code>${ip}</code><br>Request ID is <code>${id}</code></request-status></footer></body></html>';
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export default (
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errorCode: number,
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errorMessage: string = `The route you are trying access is error.`
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) =>
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async (request: request<any>) => {
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return new response(
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template
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.replaceAll("${statusCode}", errorCode.toString())
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.replaceAll("${codeAlternative}", codeAlternative[errorCode])
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.replaceAll("${explain}", errorMessage)
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.replaceAll(
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"${howto}",
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`You can go to the <a href="/">homepage</a> of the website.`
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)
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.replaceAll("${id}", uuid())
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.replaceAll(
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"${ServerStatus}",
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errorCode >= 500
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? "Error"
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: errorCode <= 500 && errorCode >= 400
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? `Working but ${codeAlternative[errorCode]}`
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: "Working"
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)
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.replaceAll(
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"${ServerStatusLowerCase}",
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errorCode >= 500
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? "error"
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: errorCode <= 500 && errorCode >= 400
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? `working-with-error`
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: "working"
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)
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.replaceAll("${ip}", request.ip)
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.replaceAll(
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"${clientStatus}",
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errorCode <= 500 && errorCode >= 400
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? `Working but receive ${codeAlternative[errorCode]}`
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: "Working"
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)
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.replaceAll(
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"${clientStatusShort}",
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errorCode <= 500 && errorCode >= 400
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? `working-with-error`
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: "working"
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),
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errorCode,
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(() => {
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const Headers = new defaultHeaders();
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Headers.set("Content-Type", "text/html; charset=utf-8");
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return Headers;
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})()
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);
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};
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66
demo/index.ts
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66
demo/index.ts
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import * as handlerJS from "..";
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import errorHandler from "./errorHandler";
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interface requestType {
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hood: boolean;
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id: number;
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}
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const App = new handlerJS.rootRouter<requestType, any>();
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App.binding(
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"/(.*)",
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new handlerJS.handler("ANY", [
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async (request, response) => {
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console.log(request);
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return undefined;
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},
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])
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);
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App.binding(
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"/",
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App.create(
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"ANY",
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(): Promise<string> =>
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new Promise((resolve) => {
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console.log("Hello World!");
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resolve("Hello World!");
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throw handlerJS.ChainInterrupted;
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})
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)
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);
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App.route("/v1/(.*)")
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.add(
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new handlerJS.route(
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["/echo", "/echo/(.*)"],
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[
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new handlerJS.handler(handlerJS.method["GET"], [
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async (request, response) => {
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response = response ?? new handlerJS.response("");
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response?.headers.set("Hello", "World");
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response.body = request.url.pathname;
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return response;
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},
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]),
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new handlerJS.handler(handlerJS.method["POST"], [
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async (request, response) => {
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response = response ?? new handlerJS.response("");
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response.body = request.body;
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return response;
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},
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]),
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]
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)
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)
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.binding(
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"/error",
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App.create(handlerJS.method["ANY"], async () => {
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throw new Error("Nothing will happen here.");
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})
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)
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.useErrorResponder(errorHandler);
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App.useAdapater(handlerJS.platformAdapater.NodePlatformAdapter);
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App.adapater.listen(8080);
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