feat: HighLevel oauth2 api credentials (#9542)

packages/nodes-base/credentials/HighLevelOAuth2Api.credentials.ts

@@ -0,0 +1,65 @@
+import type { ICredentialType, INodeProperties } from 'n8n-workflow';
+
+export class HighLevelOAuth2Api implements ICredentialType {
+	name = 'highLevelOAuth2Api';
+
+	extends = ['oAuth2Api'];
+
+	displayName = 'HighLevel OAuth2 API';
+
+	documentationUrl = 'highLevel';
+
+	icon = 'file:icons/highLevel.svg';
+
+	properties: INodeProperties[] = [
+		{
+			displayName: 'Grant Type',
+			name: 'grantType',
+			type: 'hidden',
+			default: 'authorizationCode',
+		},
+		{
+			displayName: 'Authorization URL',
+			name: 'authUrl',
+			type: 'options',
+			default: 'https://marketplace.leadconnectorhq.com/oauth/chooselocation',
+			required: true,
+			options: [
+				{
+					name: 'White-Label',
+					value: 'https://marketplace.leadconnectorhq.com/oauth/chooselocation',
+				},
+				{
+					name: 'Standard',
+					value: 'https://marketplace.gohighlevel.com/oauth/chooselocation',
+				},
+			],
+		},
+		{
+			displayName: 'Scope',
+			name: 'scope',
+			type: 'string',
+			hint: 'Separate scopes by space',
+			default: '',
+			required: true,
+		},
+		{
+			displayName: 'Access Token URL',
+			name: 'accessTokenUrl',
+			type: 'hidden',
+			default: 'https://services.leadconnectorhq.com/oauth/token',
+		},
+		{
+			displayName: 'Auth URI Query Parameters',
+			name: 'authQueryParameters',
+			type: 'hidden',
+			default: '',
+		},
+		{
+			displayName: 'Authentication',
+			name: 'authentication',
+			type: 'hidden',
+			default: 'body',
+		},
+	];
+}