extension MockerTemplateViewController: HttpMockerDelegate {
    // 根据拦截到的URLRequest，返回本地假数据。
    func httpMocker(request: URLRequest) -> HttpMocker {
        guard let url = request.url else { fatalError() }
        switch url {
        case jsonURL:
            let jsonUrl = Bundle(for: MockerTemplateViewController.self).url(forResource: "mock_json", withExtension: "json")!
            let mocker = HttpMocker(dataType: .json, mockData: jsonUrl.data, statusCode: 200, httpVer: .http1_1)
            return mocker
        default:
            fatalError()
二，Intercept Request (拦截请求)
        let url = URL(string: "https://www.baidu.com/")
        webview.load(URLRequest(url: url!))
    func registerInterceptor() {
        // 定义拦截条件，根据URLRequest参数来进行判断，是否需要拦截此Request，返回Bool告诉HTTPInterceptor。
        let condition = HttpIntercepCondition(schemeType: .all) { (request) -> Bool in
            // 拦截逻辑，这里是要拦截host带有ss和timgmb和结尾是 gif，jpeg，png，svg，jpg的Request。
            // 大家可以根据自己的需求来定义这个条件。
            guard let pathExtensionStr = request.url?.pathExtension,
                  let host = request.url?.host else {
                return false
            if host.contains("ss") || host.contains("timgmb") {
                return true
            let pathExtension = WKViewController.PathExtension(rawValue: pathExtensionStr)
            switch pathExtension {
            case .gif,.jpeg,.png,.svg,.jpg:
                return true
            case .none:
                return false
        interceptor = HttpInterceptor(condition: condition, interceptorDelegate: self)
        // 开始注册
        interceptor?.register()
    deinit {
        print("WKViewController deinit")
        // 取消注册
        interceptor?.unregister()
2.实现 HttpInterceptDelegate 代理
extension WKViewController: HttpInterceptDelegate {
    // Replace Request URL
    func httpRequest(request: URLRequest) -> URLRequest {
        // 将拦截到的Request，换成我们新的Request。 
        var newRequest = request
        newRequest.url = URL(string: "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1577182928067&di=4a039119f074e775880d33ee7589e556&imgtype=0&src=http%3A%2F%2Fimg.mp.itc.cn%2Fupload%2F20170307%2Fc1529f8154f949ef83abee83f6d5ece7.jpg")!
        return newRequest
Features
 Create mocked data requests based on an URL
 Supports popular frameworks like Alamofire
 WKWebView, UIWebView, URLSession, URLConnection, all network http(s) requests can be intercepted.
 Cannot intercept HTTPBody in WKWebView Post request.
 Custom filter URLRequest.
 Can intercept and replace URLRequest, URLResponse, Data.
Usage
一，Mock Data (Mock数据)
1.Define intercept condition
let condition = HttpIntercepCondition(schemeType: .all) { (request) -> Bool in
    return true
2.New a interceptor instance
let interceptor = HttpInterceptor(condition: condition, mockerDelegate: self)
3.Start register
interceptor.register()
4.Cancel register
interceptor.unregister()
5.Implement HttpMockerDelegate delegate, callback to you
extension MockerTemplateViewController: HttpMockerDelegate {
    // 例子
    // Example
    func httpMocker(request: URLRequest) -> HttpMocker {
        let jsonUrl = Bundle(for: MockerTemplateViewController.self).url(forResource: "mock_json", withExtension: "json")!
        let mocker = HttpMocker(dataType: .json, mockData: jsonUrl.data, statusCode: 200, httpVer: .http1_1)
        return mocker
二，Intercept Request (拦截请求)
1.Define intercept condition
let condition = HttpIntercepCondition(schemeType: .all) { (request) -> Bool in
    return true
2.New a interceptor instance
let interceptor = HttpInterceptor(condition: condition, interceptorDelegate: self)
3.Start register
interceptor.register()
4.Cancel register
interceptor.unregister()
5.Implement HttpInterceptorDelegate delegate, callback to you
extension SomeClass: HttpInterceptDelegate {
    // Intercept http request then return a new request 
    func httpRequest(request: URLRequest) -> URLRequest {
        return request
    // Intercept http response then return a new response 
    func httpRequest(response: URLResponse) -> URLResponse {
        return response
    // Intercept http response data then return a new response data
    func httpRequest(request: URLRequest, data: Data) -> Data {
        return data
    // When the request is complete call this api
    func httpRequest(request: URLRequest, didCompleteWithError error: Error?) {
    func httpRequest(request: URLRequest, didFinishCollecting metrics: URLSessionTaskMetrics) {
Requirements
iOS 10+
Installation
HttpInterceptor is available through CocoaPods. To install
it, simply add the following line to your Podfile:
pod 'BestHttpInterceptor'
if you want use it with Debug
pod 'BestHttpInterceptor',:configurations => ['Debug']