Added LoggingURLEncodedFormDecoder

Sources/Postie/Decoder/ResponseDecoding.swift

@@ -98,7 +98,7 @@ internal struct ResponseDecoding: Decoder {
     }
 
     private func createFormURLEncodedDecoder() -> URLEncodedFormDecoder {
-        let decoder = URLEncodedFormDecoder()
+        let decoder = LoggingURLEncodedFormDecoder()
         decoder.keyDecodingStrategy = .convertFromSnakeCase
         return decoder
     }

Sources/Postie/Utils/LoggingJSONDecoder.swift

@@ -12,3 +12,4 @@ class LoggingJSONDecoder: JSONDecoder {
         }
     }
 }
+

Sources/Postie/Utils/LoggingURLEncodedFormDecoder.swift

@@ -0,0 +1,15 @@
+import Foundation
+import os.log
+import URLEncodedFormCoding
+
+class LoggingURLEncodedFormDecoder: URLEncodedFormDecoder {
+
+    override func decode<T>(_ type: T.Type, from data: Data) throws -> T where T: Decodable {
+        do {
+            return try super.decode(type, from: data)
+        } catch {
+            os_log("Failed to decode form-url-encoded data: %@\nReason: %@\nDetails: %@", type: .error, String(data: data, encoding: .utf8) ?? "nil", error.localizedDescription, String(describing: error))
+            throw error
+        }
+    }
+}

Sources/URLEncodedFormCoding/URLEncodedFormDecoder.swift

@@ -2,7 +2,7 @@ import Foundation
 import Combine
 import PostieUtils
 
-public final class URLEncodedFormDecoder: TopLevelDecoder {
+open class URLEncodedFormDecoder: TopLevelDecoder {
 
     public enum DecodingError: Error {
         case invalidData
@@ -17,7 +17,7 @@ public final class URLEncodedFormDecoder: TopLevelDecoder {
 
     public init() {}
 
-    public func decode<D>(_ decodable: D.Type, from data: Data) throws -> D where D: Decodable {
+    open func decode<D>(_ decodable: D.Type, from data: Data) throws -> D where D: Decodable {
         let urlEncodedFormData = String(data: data, encoding: .utf8) ?? ""
         let context = URLEncodedFormDataContext()