Merge pull request #183 from wordpress-mobile/issue/12556-siwa_add_data_to_error

[SIWA] Return user's email in constructed Error

Author: ScoutHarris

WordPressKit.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name          = "WordPressKit"
-  s.version       = "4.5.0"
+  s.version       = "4.5.1-beta.1"
   s.summary       = "WordPressKit offers a clean and simple WordPress.com and WordPress.org API."
 
   s.description   = <<-DESC

WordPressKit/WordPressComRestApi.swift

@@ -34,6 +34,8 @@ open class WordPressComRestApi: NSObject {
 
     @objc public static let ErrorKeyErrorCode       = "WordPressComRestApiErrorCodeKey"
     @objc public static let ErrorKeyErrorMessage    = "WordPressComRestApiErrorMessageKey"
+    @objc public static let ErrorKeyErrorData       = "WordPressComRestApiErrorDataKey"
+    @objc public static let ErrorKeyErrorDataEmail  = "email"
 
     @objc public static let LocaleKeyDefault        = "locale"  // locale is specified with this for v1 endpoints
     @objc public static let LocaleKeyV2             = "_locale" // locale is prefixed with an underscore for v2
@@ -464,6 +466,11 @@ extension WordPressComRestApi {
         userInfo[WordPressComRestApi.ErrorKeyErrorCode] = errorCode
         userInfo[WordPressComRestApi.ErrorKeyErrorMessage] = errorDescription
         userInfo[NSLocalizedDescriptionKey] =  errorDescription
+
+        if let errorData = errorEntry["data"] {
+            userInfo[WordPressComRestApi.ErrorKeyErrorData] = errorData
+        }
+
         let nserror = mappedError as NSError
         let resultError = NSError(domain: nserror.domain,
                                code: nserror.code,