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apitally

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Simple API monitoring & analytics for REST APIs built with Express, Fastify, Hono, Koa, and NestJS.

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{"version":3,"sources":["../../src/express/utils.js"],"sourcesContent":["// Adapted from https://github.com/AlbertoFdzM/express-list-endpoints/blob/305535d43008b46f34e18b01947762e039af6d2d/src/index.js\n// and also incorporated changes from https://github.com/AlbertoFdzM/express-list-endpoints/pull/96\n\n/**\n * @typedef {Object} Route\n * @property {Object} methods\n * @property {string | string[]} path\n * @property {any[]} stack\n *\n * @typedef {Object} Endpoint\n * @property {string} path Path name\n * @property {string[]} methods Methods handled\n * @property {string[]} middlewares Mounted middlewares\n */\n\nconst regExpToParseExpressPathRegExp =\n /^\\/\\^\\\\?\\/?(?:(:?[\\w\\\\.-]*(?:\\\\\\/:?[\\w\\\\.-]*)*)|(\\(\\?:\\\\?\\/?\\([^)]+\\)\\)))\\\\\\/.*/;\nconst regExpToReplaceExpressPathRegExpParams = /\\(\\?:\\\\?\\/?\\([^)]+\\)\\)/;\nconst regexpExpressParamRegexp = /\\(\\?:\\\\?\\\\?\\/?\\([^)]+\\)\\)/g;\nconst regexpExpressPathParamRegexp = /(:[^)]+)\\([^)]+\\)/g;\n\nconst EXPRESS_ROOT_PATH_REGEXP_VALUE = \"/^\\\\/?(?=\\\\/|$)/i\";\nconst STACK_ITEM_VALID_NAMES = [\"router\", \"bound dispatch\", \"mounted_app\"];\n\n/**\n * Returns all the verbs detected for the passed route\n * @param {Route} route\n */\nconst getRouteMethods = function (route) {\n let methods = Object.keys(route.methods);\n\n methods = methods.filter((method) => method !== \"_all\");\n methods = methods.map((method) => method.toUpperCase());\n\n return methods;\n};\n\n/**\n * Returns the names (or anonymous) of all the middlewares attached to the\n * passed route\n * @param {Route} route\n * @returns {string[]}\n */\nconst getRouteMiddlewares = function (route) {\n return route.stack.map((item) => {\n return item.handle.name || \"anonymous\";\n });\n};\n\n/**\n * Returns true if found regexp related with express params\n * @param {string} expressPathRegExp\n * @returns {boolean}\n */\nconst hasParams = function (expressPathRegExp) {\n return regexpExpressParamRegexp.test(expressPathRegExp);\n};\n\n/**\n * @param {Route} route Express route object to be parsed\n * @param {string} basePath The basePath the route is on\n * @return {Endpoint[]} Endpoints info\n */\nconst parseExpressRoute = function (route, basePath) {\n const paths = [];\n\n if (Array.isArray(route.path)) {\n paths.push(...route.path);\n } else {\n paths.push(route.path);\n }\n\n /** @type {Endpoint[]} */\n const endpoints = paths.map((path) => {\n const completePath =\n basePath && path === \"/\" ? basePath : `${basePath}${path}`;\n\n /** @type {Endpoint} */\n const endpoint = {\n path: completePath.replace(regexpExpressPathParamRegexp, \"$1\"),\n methods: getRouteMethods(route),\n middlewares: getRouteMiddlewares(route),\n };\n\n return endpoint;\n });\n\n return endpoints;\n};\n\n/**\n * @param {RegExp} expressPathRegExp\n * @param {any[]} params\n * @returns {string}\n */\nexport const parseExpressPath = function (expressPathRegExp, params) {\n let parsedRegExp = expressPathRegExp.toString();\n let expressPathRegExpExec = regExpToParseExpressPathRegExp.exec(parsedRegExp);\n let paramIndex = 0;\n\n while (hasParams(parsedRegExp)) {\n const paramName = params[paramIndex].name;\n const paramId = `:${paramName}`;\n\n parsedRegExp = parsedRegExp.replace(\n regExpToReplaceExpressPathRegExpParams,\n (str) => {\n // Express >= 4.20.0 uses a different RegExp for parameters: it\n // captures the slash as part of the parameter. 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