⚡ Clickup OAuth2 support (#649)

* OAuth2 credentials, genericFunctions needed config, UI options for oauth2 support

* ⚡ Added options to decide when to to send the bearer

* Fixed "undefined property split" issue

* ⚡ Small fix

* ⚡ Improvements to ClickUp-Node

* ⚡ Improvements

Co-authored-by: Rupenieks <ru@myos,co>
Co-authored-by: ricardo <ricardoespinoza105@gmail.com>
Co-authored-by: Ricardo Espinoza <ricardo@n8n.io>

packages/nodes-base/nodes/ClickUp/ClickUp.node.ts

@@ -99,9 +99,43 @@ export class ClickUp implements INodeType {
 			{
 				name: 'clickUpApi',
 				required: true,
+				displayOptions: {
+					show: {
+						authentication: [
+							'accessToken',
+						],
+					},
+				},
+			},
+			{
+				name: 'clickUpOAuth2Api',
+				required: true,
+				displayOptions: {
+					show: {
+						authentication: [
+							'oAuth2',
+						],
+					},
+				},
 			},
 		],
 		properties: [
+			{
+				displayName: 'Authentication',
+				name: 'authentication',
+				type: 'options',
+				options: [
+					{
+						name: 'Access Token',
+						value: 'accessToken',
+					},
+					{
+						name: 'OAuth2',
+						value: 'oAuth2',
+					},
+				],
+				default: 'accessToken',
+			},
 			{
 				displayName: 'Resource',
 				name: 'resource',