Swift Moya自定义插件打印日志

如何用Moya自定义插件打印网络请求日志

Moya本身不提供详细的日志打印功能，但可以通过自定义插件来实现。以下步骤展示如何创建并配置一个日志插件。

创建自定义日志插件

定义一个遵守PluginType协议的插件类，实现必要的协议方法：

import Moyafinal class NetworkLoggerPlugin: PluginType {func willSend(_ request: RequestType, target: TargetType) {guard let urlRequest = request.request else { return }print("\n🚀 Request:")print("URL: \(urlRequest.url?.absoluteString ?? "")")print("Method: \(urlRequest.httpMethod ?? "")")print("Headers: \(urlRequest.allHTTPHeaderFields ?? [:])")if let body = urlRequest.httpBody, let bodyString = String(data: body, encoding: .utf8) {print("Body: \(bodyString)")}}func didReceive(_ result: Result<Response, MoyaError>, target: TargetType) {switch result {case .success(let response):print("\n✅ Response:")print("Status Code: \(response.statusCode)")print("Headers: \(response.response?.allHeaderFields ?? [:])")if let json = try? response.mapJSON() {print("Response Data: \(json)")} else if let string = try? response.mapString() {print("Response Data: \(string)")}case .failure(let error):print("\n❌ Error:")print("Error: \(error.localizedDescription)")}}
}

将插件添加到Moya Provider

创建Moya Provider实例时，将自定义插件添加到plugins数组中：

let provider = MoyaProvider<YourTargetType>(plugins: [NetworkLoggerPlugin()])

优化日志输出格式

如果需要更美观的日志输出，可以改进打印格式：

func willSend(_ request: RequestType, target: TargetType) {guard let urlRequest = request.request else { return }let output = """\n╔═══════════════════════════════════════════════════════════║ 🚀 Request║ URL: \(urlRequest.url?.absoluteString ?? "")║ Method: \(urlRequest.httpMethod ?? "")║ Headers: \(urlRequest.allHTTPHeaderFields ?? [:])║ Body: \(urlRequest.httpBody.flatMap { String(data: $0, encoding: .utf8) } ?? "None")╚═══════════════════════════════════════════════════════════"""print(output)
}

使用第三方日志库

对于更专业的日志记录，可以集成CocoaLumberjack等日志库：

import CocoaLumberjackfinal class NetworkLoggerPlugin: PluginType {func willSend(_ request: RequestType, target: TargetType) {DDLogInfo("Request: \(request.request?.url?.absoluteString ?? "")")}func didReceive(_ result: Result<Response, MoyaError>, target: TargetType) {switch result {case .success(let response):DDLogInfo("Response: \(response.statusCode)")case .failure(let error):DDLogError("Error: \(error.localizedDescription)")}}
}

过滤敏感信息

在打印日志时，建议过滤掉授权头等敏感信息：

func willSend(_ request: RequestType, target: TargetType) {guard let urlRequest = request.request else { return }var headers = urlRequest.allHTTPHeaderFields ?? [:]headers["Authorization"] = headers["Authorization"] != nil ? "*****" : nilprint("Headers: \(headers)")
}