@node-scarlet/http
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Build APIs Instantly 🏋️♂️
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JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
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if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
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if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
var http = require("http");
var qs = require("querystring");
var UrlPattern = require("url-pattern");
var util_1 = require("util");
var stream_1 = require("stream");
exports.server = function () { return new HttpServer(); };
exports.response = function (options) {
if (options === void 0) { options = {}; }
return new HttpResponse(options);
};
var HttpServer = /** @class */ (function () {
function HttpServer() {
this.listen = listen.bind(this);
this.close = close.bind(this);
this.port = port.bind(this);
this.route = route.bind(this);
this.middlewares = {
GET: [],
PUT: [],
POST: [],
PATCH: [],
DELETE: [],
};
}
return HttpServer;
}());
/**
* Create an Http Server and start listening for requests
* Bound as a method to `HttpServer`
*/
function listen(port) {
var _this = this;
if (port === void 0) { port = 0; }
this._server = http.createServer(function (req, res) { return __awaiter(_this, void 0, void 0, function () {
var url, method, headers, _a, path, querystring, body, query, meta, request, _i, _b, m, match, response_1, adaptable, notFoundResponse, e_1;
return __generator(this, function (_c) {
switch (_c.label) {
case 0:
_c.trys.push([0, 6, , 7]);
url = req.url, method = req.method, headers = req.headers;
_a = url.split('?'), path = _a[0], querystring = _a[1];
return [4 /*yield*/, asyncBody(req)];
case 1:
body = _c.sent();
query = Object.assign({}, qs.decode(querystring));
// Try to parse JSON data
if (headers['content-type'] == 'application/json') {
try {
body = JSON.parse(body);
}
catch (e) { }
}
// Try to parse URL-Encoded data
else if (headers['content-type'] == 'application/x-www-form-urlencoded') {
body = Object.assign({}, qs.decode(body));
}
meta = {};
request = {
url: url,
method: method,
query: query,
headers: headers,
body: body,
};
_i = 0, _b = this.middlewares[method];
_c.label = 2;
case 2:
if (!(_i < _b.length)) return [3 /*break*/, 5];
m = _b[_i];
match = void 0;
try {
// Some urlpatterns will throw errors
match = m.match(path);
}
catch (e) {
return [3 /*break*/, 4];
}
if (!match) return [3 /*break*/, 4];
request.params = match;
return [4 /*yield*/, m.handler(request, meta)];
case 3:
response_1 = _c.sent();
if (response_1) {
adaptable = responseShorthand(response_1);
return [2 /*return*/, adaptResponse(adaptable, res)];
}
_c.label = 4;
case 4:
_i++;
return [3 /*break*/, 2];
case 5:
notFoundResponse = exports.response({ status: 404 });
adaptResponse(notFoundResponse, res);
return [3 /*break*/, 7];
case 6:
e_1 = _c.sent();
throw e_1;
case 7: return [2 /*return*/];
}
});
}); });
this._server.listen(port);
}
/**
* Stop listening for http requests
* Bound as a method to `HttpServer`
*/
function close() {
this._server.close();
}
/**
* Determine the port that's being listened over
* Bound as a method to `HttpServer`
*/
function port() {
return this._server.address().port;
}
/**
* Adapts `HttpResponse` it to its lower level counterpart`http.ServerResponse`.
* A helper function of `HttpServer.listen()`
*/
function adaptResponse(input, output) {
var status = input.status, headers = input.headers, body = input.body;
if (!(body instanceof stream_1.Readable))
headers['Content-Length'] = Buffer.byteLength(body);
output.writeHead(status, __assign({}, headers));
if (body instanceof stream_1.Readable) {
body.pipe(output);
}
else {
output.end(body);
}
}
/**
* Get stringified request body asyncronously
* @param {http.IncomingMessage} req
* @returns {Promise<string>}
*/
var asyncBody = util_1.promisify(function (req, callback) {
var body = '';
req.on('data', function (chunk) {
body += chunk.toString();
});
req.on('end', function () {
callback(null, body);
});
req.on('error', function (e) {
callback(e);
});
});
/**
* Convert primitive response types into intances of `HttpResponse`
* A helper function of `HttpServer.start()`
* A helper function of `HttpServer.listen()`
*/
function responseShorthand(response) {
if (typeof response == 'string') {
return {
status: 200,
headers: { 'content-type': 'text/html' },
body: response
};
}
else if (typeof response == 'number' && statusMessages[response]) {
return {
status: response,
headers: { 'content-type': 'text/plain' },
body: statusMessages[response]
};
}
else if (response instanceof stream_1.Readable) {
return { status: 200, body: response };
}
else if (typeof response == 'object' && !(response instanceof HttpResponse)) {
return {
status: 200,
headers: { 'content-type': 'application/json' },
body: JSON.stringify(response),
};
}
else
return response;
}
var Middleware = /** @class */ (function () {
function Middleware(method, urlpattern, handler) {
this.method = method;
this.urlpattern = urlpattern;
this.handler = handler;
this.match = function (url) { return new UrlPattern(urlpattern).match(url); };
}
return Middleware;
}());
function route(method, urlpattern, handler) {
method = method.toUpperCase();
if (!exports.methods[method])
throw new Error("Unsupported verb \"" + method + "\".");
this.middlewares[method].push(new Middleware(method, urlpattern, handler));
}
var HttpResponse = /** @class */ (function () {
function HttpResponse(options) {
var status = options.status, headers = options.headers, body = options.body;
this.status = status ? status : 200;
this.headers = headers ? headers : {};
this.body = body != undefined ? body : '';
}
return HttpResponse;
}());
var statusMessages = {
200: 'OK',
201: 'Created',
400: 'Bad Request',
401: 'Unauthorized',
403: 'Forbidden',
404: 'Not Found',
409: 'Conflict',
500: 'Internal Server Error',
};
exports.methods = {
GET: 'GET',
PUT: 'PUT',
POST: 'POST',
DELETE: 'DELETE'
};
//# sourceMappingURL=http.js.map