Merge pull request #27 from MaxenceLvl/master

Add the cURL command to the debug logs

Sources/Networking/Logging/NetworkingLogger.swift

@@ -20,6 +20,10 @@ class NetworkingLogger {
             print("\(verb) '\(url.absoluteString)'")
             logHeaders(request)
             logBody(request)
+
+        }
+        if logLevels == .debug {
+            logCurl(request)
         }
     }
 
@@ -55,4 +59,34 @@ class NetworkingLogger {
             print("\(urlResponse.statusCode) '\(url.absoluteString)'")
         }
     }
+
+    private func logCurl(_ urlRequest: URLRequest) {
+        print(urlRequest.toCurlCommand())
+    }
+}
+
+extension URLRequest {
+
+    /**
+        Heavily inspired from : https://gist.github.com/shaps80/ba6a1e2d477af0383e8f19b87f53661d
+     */
+    public func toCurlCommand() -> String {
+        guard let url = url else { return "" }
+        var command = ["curl \"\(url.absoluteString)\""]
+
+        if let method = httpMethod, method != "GET" && method != "HEAD" {
+            command.append("-X \(method)")
+        }
+
+        allHTTPHeaderFields?
+            .filter { $0.key != "Cookie" }
+            .forEach { command.append("-H '\($0.key): \($0.value)'")}
+
+        if let data = httpBody, let body = String(data: data, encoding: .utf8) {
+            command.append("-d '\(body)'")
+        }
+
+        return command.joined(separator: " \\\n\t")
+    }
+
 }

Tests/NetworkingTests/CurlLoggingTests.swift

@@ -0,0 +1,64 @@
+//
+//  CurlLoggingTests.swift
+//  
+//
+//  Created by Maxence Levelu on 25/01/2021.
+//
+
+import Foundation
+import XCTest
+
+final class CurlLoggingTests: XCTestCase {
+
+    func testLogGet() {
+        var urlRequest = URLRequest(url: URL(string: "https://jsonplaceholder.typicode.com")!)
+        urlRequest.httpMethod = "GET"
+        urlRequest.addValue("token", forHTTPHeaderField: "Authorization")
+        let result = urlRequest.toCurlCommand()
+        XCTAssertEqual(result, "curl \"https://jsonplaceholder.typicode.com\" \\\n\t-H 'Authorization: token'")
+    }
+
+    func testLogPost() {
+        var urlRequest = URLRequest(url: URL(string:
+            "https://jsonplaceholder.typicode.com/posts")!)
+        urlRequest.httpMethod = "POST"
+        let jsonString = """
+        {"title": "Hello world"}
+        """
+        urlRequest.httpBody = jsonString.data(using: .utf8)
+        let result = urlRequest.toCurlCommand()
+        XCTAssertEqual(result, "curl \"https://jsonplaceholder.typicode.com/posts\" \\\n\t-X POST \\\n\t-d '{\"title\": \"Hello world\"}'")
+    }
+
+    func testLogPut() {
+        var urlRequest = URLRequest(url: URL(string:
+            "https://jsonplaceholder.typicode.com/posts")!)
+        urlRequest.httpMethod = "PUT"
+        let jsonString = """
+        {"title": "Hello world"}
+        """
+        urlRequest.httpBody = jsonString.data(using: .utf8)
+        let result = urlRequest.toCurlCommand()
+        XCTAssertEqual(result, "curl \"https://jsonplaceholder.typicode.com/posts\" \\\n\t-X PUT \\\n\t-d '{\"title\": \"Hello world\"}'")
+    }
+
+    func testLogPatch() {
+        var urlRequest = URLRequest(url: URL(string:
+            "https://jsonplaceholder.typicode.com/posts")!)
+        urlRequest.httpMethod = "PATCH"
+        let jsonString = """
+        {"title": "Hello world"}
+        """
+        urlRequest.httpBody = jsonString.data(using: .utf8)
+        let result = urlRequest.toCurlCommand()
+        XCTAssertEqual(result, "curl \"https://jsonplaceholder.typicode.com/posts\" \\\n\t-X PATCH \\\n\t-d '{\"title\": \"Hello world\"}'")
+    }
+
+    func testLogDelete() {
+        var urlRequest = URLRequest(url: URL(string:
+            "https://jsonplaceholder.typicode.com/posts/1")!)
+        urlRequest.httpMethod = "DELETE"
+        let result = urlRequest.toCurlCommand()
+        XCTAssertEqual(result, "curl \"https://jsonplaceholder.typicode.com/posts/1\" \\\n\t-X DELETE")
+    }
+}