Function routeMatcher has a Cognitive Complexity of 24 (exceeds 5 allowed). Consider refactoring.

Open

export function routeMatcher(request, route) {
    // check if http method are equals
    if (route.method && route.method !== request.method) {
        return false;
    }

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Function routeMatcher has 41 lines of code (exceeds 25 allowed). Consider refactoring.

Open

export function routeMatcher(request, route) {
    // check if http method are equals
    if (route.method && route.method !== request.method) {
        return false;
    }

Function fetch has 39 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    fetch(request, resolve, reject) {
        const {method, uri, headers=[], data} = request;

        const fail = ({status, statusText, errorThrown}) => {
            reject(

Function _callMiddlewareMethod has 32 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    _callMiddlewareMethod(meth, currentRoutes, request, response) {
        if (meth === 'exited') {
            // currentRoutes, request, response params not needed
            this.routers.forEach((router) => {
                router.visited().forEach((route) => {

Function listen has 30 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    listen(callback=DEFAULT.callback) {
        const request = {method: 'GET', uri: window.location.pathname + window.location.search};
        const response = {status: 200, statusText: 'OK'};
        const currentRoutes = this._routes(request);

Function fetch has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

Open

    fetch(request, resolve, reject) {
        const {method, uri, headers=[], data} = request;

        const fail = ({status, statusText, errorThrown}) => {
            reject(

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Function uri has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

Open

    get uri() {
        if (!this.uriPart && !this.method) {
            return undefined;
        }

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Avoid too many return statements within this function.

Open

            return baseUri;

Avoid too many return statements within this function.

Open

        return true;

Avoid too many return statements within this function.

Open

        return this.uriPart;

Avoid too many return statements within this function.

Open

    return route.uri === baseUriToCheck;

Function use has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    use(...args) {
        let {baseUri, router, middleware, plugin} = toParameters(args);
        if (plugin) {
            this.plugins.push(plugin);
        } else {

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Function toParameters has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

export function toParameters(args) {
    let baseUri, middleware, router, plugin, which;

    args.length === 1 ? [which,] = args : [baseUri, which,] = args;

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