diff --git a/Sources/Entities/AuthorisationRequestObject.swift b/Sources/Entities/AuthorisationRequestObject.swift
index 2cf6c40..fd06f83 100644
--- a/Sources/Entities/AuthorisationRequestObject.swift
+++ b/Sources/Entities/AuthorisationRequestObject.swift
@@ -27,6 +27,7 @@ public struct AuthorisationRequestObject: Codable {
   public let presentationDefinitionUri: String?
   public let request: String?
   public let requestUri: String?
+  public let requestUriMethod: String?
   public let clientMetaData: String?
   public let clientId: String?
   public let clientMetadataUri: String?
@@ -45,7 +46,7 @@ public struct AuthorisationRequestObject: Codable {
     case presentationDefinition = "presentation_definition"
     case presentationDefinitionUri = "presentation_definition_uri"
     case clientId = "client_id"
-    case clientMetaData = "client_meta_data"
+    case clientMetaData = "client_metadata"
     case clientMetadataUri = "client_metadata_uri"
     case clientIdScheme = "client_id_scheme"
     case nonce
@@ -55,6 +56,7 @@ public struct AuthorisationRequestObject: Codable {
     case idTokenType = "id_token_type"
     case request
     case requestUri = "request_uri"
+    case requestUriMethod = "request_uri_method"
     case supportedAlgorithm = "supported_algorithm"
   }
 
@@ -66,6 +68,7 @@ public struct AuthorisationRequestObject: Codable {
     presentationDefinitionUri: String? = nil,
     request: String? = nil,
     requestUri: String? = nil,
+    requestUriMethod: String? = nil,
     clientMetaData: String? = nil,
     clientId: String? = nil,
     clientMetadataUri: String? = nil,
@@ -84,6 +87,7 @@ public struct AuthorisationRequestObject: Codable {
     self.presentationDefinitionUri = presentationDefinitionUri
     self.request = request
     self.requestUri = requestUri
+    self.requestUriMethod = requestUriMethod
     self.clientMetaData = clientMetaData
     self.clientId = clientId
     self.clientMetadataUri = clientMetadataUri
@@ -119,7 +123,8 @@ public struct AuthorisationRequestObject: Codable {
 
     request = try? container.decode(String.self, forKey: .request)
     requestUri = try? container.decode(String.self, forKey: .requestUri)
-
+    requestUriMethod = try? container.decode(String.self, forKey: .requestUriMethod)
+    
     supportedAlgorithm = try? container.decode(String.self, forKey: .supportedAlgorithm)
   }
 
@@ -147,7 +152,8 @@ public struct AuthorisationRequestObject: Codable {
 
     try? container.encode(request, forKey: .request)
     try? container.encode(requestUri, forKey: .requestUri)
-
+    try? container.encode(requestUriMethod, forKey: .requestUriMethod)
+    
     try? container.encode(supportedAlgorithm, forKey: .supportedAlgorithm)
   }
 }
@@ -177,7 +183,8 @@ public extension AuthorisationRequestObject {
 
     request = parameters?[CodingKeys.request.rawValue] as? String
     requestUri = parameters?[CodingKeys.requestUri.rawValue] as? String
-
+    requestUriMethod = parameters?[CodingKeys.requestUriMethod.rawValue] as? String
+    
     supportedAlgorithm = parameters?[CodingKeys.supportedAlgorithm.rawValue] as? String
   }
 }
diff --git a/Sources/PresentationDefinition/PresentationDefinitionSource.swift b/Sources/PresentationDefinition/PresentationDefinitionSource.swift
index 7cab246..48c83d7 100644
--- a/Sources/PresentationDefinition/PresentationDefinitionSource.swift
+++ b/Sources/PresentationDefinition/PresentationDefinitionSource.swift
@@ -33,6 +33,19 @@ public extension PresentationDefinitionSource {
     } else if let uri = authorizationRequestObject[Constants.PRESENTATION_DEFINITION_URI].string,
               let uri = URL(string: uri) {
       self = .fetchByReference(url: uri)
+    } else if let presentationDefinitionString = authorizationRequestObject[Constants.PRESENTATION_DEFINITION].string {
+      
+      guard let jsonData = presentationDefinitionString.data(using: .utf8) else {
+        throw PresentationError.invalidPresentationDefinition
+      }
+      
+      if let container = try? JSONDecoder().decode(PresentationDefinitionContainer.self, from: jsonData) {
+        self = .passByValue(presentationDefinition: container.definition)
+      } else {
+        let definition = try JSONDecoder().decode(PresentationDefinition.self, from: jsonData)
+        self = .passByValue(presentationDefinition: definition)
+      }
+      
     } else if let scope = authorizationRequestObject[Constants.SCOPE].string,
               !scope.components(separatedBy: " ").isEmpty {
       self = .implied(scope: scope.components(separatedBy: " "))
diff --git a/Tests/EntitiesTests.swift b/Tests/EntitiesTests.swift
index ae61c77..99e4415 100644
--- a/Tests/EntitiesTests.swift
+++ b/Tests/EntitiesTests.swift
@@ -201,7 +201,7 @@ class AuthorizationRequestUnprocessedDataTests: XCTestCase {
         "presentation_definition_uri": "https://example.com/definition",
         "request": "request",
         "request_uri": "https://example.com/request",
-        "client_meta_data": "clientMetaData",
+        "client_metadata": "clientMetaData",
         "client_id": "clientId",
         "client_metadata_uri": "https://example.com/metadata",
         "client_id_scheme": "clientScheme",
@@ -237,7 +237,7 @@ class AuthorizationRequestUnprocessedDataTests: XCTestCase {
   }
   
   func testInitFromURL() {
-    let url = URL(string: "https://example.com?response_type=code&response_uri=https%3A%2F%2Fexample.com%2Fresponse&redirect_uri=https%3A%2F%2Fexample.com%2Fredirect&presentation_definition=presentationDefinition&presentation_definition_uri=https%3A%2F%2Fexample.com%2Fdefinition&request=request&request_uri=https%3A%2F%2Fexample.com%2Frequest&client_meta_data=clientMetaData&client_id=clientId&client_metadata_uri=https%3A%2F%2Fexample.com%2Fmetadata&client_id_scheme=clientScheme&nonce=nonce&scope=scope&response_mode=responseMode&state=state&id_token_type=idTokenType")!
+    let url = URL(string: "https://example.com?response_type=code&response_uri=https%3A%2F%2Fexample.com%2Fresponse&redirect_uri=https%3A%2F%2Fexample.com%2Fredirect&presentation_definition=presentationDefinition&presentation_definition_uri=https%3A%2F%2Fexample.com%2Fdefinition&request=request&request_uri=https%3A%2F%2Fexample.com%2Frequest&client_metadata=clientMetaData&client_id=clientId&client_metadata_uri=https%3A%2F%2Fexample.com%2Fmetadata&client_id_scheme=clientScheme&nonce=nonce&scope=scope&response_mode=responseMode&state=state&id_token_type=idTokenType")!
     
     let data = AuthorisationRequestObject(from: url)
     
diff --git a/Tests/TestsConstants.swift b/Tests/TestsConstants.swift
index ae7dc58..7a18a7d 100644
--- a/Tests/TestsConstants.swift
+++ b/Tests/TestsConstants.swift
@@ -18,8 +18,6 @@ import Foundation
 
 struct TestsConstants {
   
-  // MARK: - Claims
-  
   static let testClaimsBankAndPassport = [
     Claim(
       id: "samplePassport",