vasilevkin

import os.log
import os.signpost

let networkLog = OSLog(subsystem: "com.example.app.reader", category: "Articles")
let signpostID = OSSignpostID(log: networkLog)

func loadArticles() throws -> [Article] {
    let decoder = JSONDecoder()

    return try files.map { file in

vasilevkin

os_signpost(type: .begin, log: networkLog, name: "Parse Article from File", 
            signpostID: signpostID,"%{public}s", file.path)

let data = try file.read()

os_signpost(type: .end, log: networkLog, name: "Parse Article from File", 
            signpostID: signpostID,"%{public}s", file.path)

vasilevkin

import os.log
import os.signpost

let networkLog = OSLog(subsystem: "com.example.app.reader", category: "Articles")
let signpostID = OSSignpostID(log: networkLog)

vasilevkin

func loadArticles() throws -> [Article] {
    let decoder = JSONDecoder()

    return try files.map { file in
        let data = try file.read()
        let article = try decoder.decode(Article.self, from: data)
        return article
    }
}

vasilevkin

let userLogin = "12345"

os_log("User login: %s", userLogin)

// In log
// User login:

vasilevkin

let userLogin = "12345"

os_log("User login: %{public}s", userLogin)

// In log
// User login: 12345

vasilevkin

os_log("Some message to log")

let errorMessage: StaticString = "404 - NOT FOUND"
os_log(errorMessage)


let responseCode = "404 - NOT FOUND"
os_log("HTTP response: %@", responseCode)

vasilevkin

import os.log
let networkLog = OSLog(subsystem: "com.example.app.network", category: "Backend")

vasilevkin

rm -rf "$(getconf DARWIN_USER_CACHE_DIR)/org.llvm.clang/ModuleCache"
rm -rf "$(getconf DARWIN_USER_CACHE_DIR)/org.llvm.clang.$(whoami)/ModuleCache"
echo "Module cache was deleted"
rm -rf ~/Library/Developer/Xcode/DerivedData/*
echo "Derived data has been deleted"
rm -rf ~/Library/Caches/com.apple.dt.Xcode/*
echo "Xcode cache has been deleted"

vasilevkin

protocol HTTPClientService {
    /**
     Sends a 'get' request to a specified URL
     
     - Parameter url: String of URL
     - Returns: Optional observable Data type
     */
    func get(url: String) -> Observable<Data?>
    
    /**