feat(Shopify Node): Add OAuth support (#3389)

* ⚡ wip

* ⚡ Add includeAccessTokenInHeader option to OAuth2

* 🔨 fixed build error, fixed trigger node when using token auth

* 🔨 fixed trigger when using oauth2

* 🔨 changed default auth method to access token

* ⚡ Improvements

* ⚡ Improvements

* ⚡ Improvements

* ⚡ Rename includeAccessTokenInHeader to keyToIncludeInAccessTokenHeader

* ⚡ Assign values to only header property

* 🔥 Remove unreachable code

* ⚡ Add keyToIncludeInAccessTokenHeader when isN8nRequest

* ⚡ Add CC grant type when isN8nRequest

Co-authored-by: Ricardo Espinoza <ricardo@n8n.io>
Co-authored-by: ricardo <ricardoespinoza105@gmail.com>
Co-authored-by: Jan Oberhauser <janober@users.noreply.github.com>

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

@@ -57,9 +57,58 @@ export class Shopify implements INodeType {
 			{
 				name: 'shopifyApi',
 				required: true,
+				displayOptions: {
+					show: {
+						authentication: [
+							'apiKey',
+						],
+					},
+				},
+			},
+			{
+				name: 'shopifyAccessTokenApi',
+				required: true,
+				displayOptions: {
+					show: {
+						authentication: [
+							'accessToken',
+						],
+					},
+				},
+			},
+			{
+				name: 'shopifyOAuth2Api',
+				required: true,
+				displayOptions: {
+					show: {
+						authentication: [
+							'oAuth2',
+						],
+					},
+				},
 			},
 		],
 		properties: [
+			{
+				displayName: 'Authentication',
+				name: 'authentication',
+				type: 'options',
+				options: [
+					{
+						name: 'Access Token',
+						value: 'accessToken',
+					},
+					{
+						name: 'OAuth2',
+						value: 'oAuth2',
+					},
+					{
+						name: 'API Key',
+						value: 'apiKey',
+					},
+				],
+				default: 'apiKey',
+			},
 			{
 				displayName: 'Resource',
 				name: 'resource',