feat(Calendly Trigger Node): Add OAuth Credentials Support (#10251)

packages/nodes-base/credentials/CalendlyOAuth2Api.credentials.ts

@@ -0,0 +1,52 @@
+import type { ICredentialType, INodeProperties, Icon } from 'n8n-workflow';
+
+export class CalendlyOAuth2Api implements ICredentialType {
+	name = 'calendlyOAuth2Api';
+
+	extends = ['oAuth2Api'];
+
+	displayName = 'Calendly OAuth2 API';
+
+	documentationUrl = 'calendly';
+
+	icon: Icon = 'file:icons/Calendly.svg';
+
+	properties: INodeProperties[] = [
+		{
+			displayName: 'Grant Type',
+			name: 'grantType',
+			type: 'hidden',
+			default: 'authorizationCode',
+		},
+		{
+			displayName: 'Authorization URL',
+			name: 'authUrl',
+			type: 'hidden',
+			default: 'https://auth.calendly.com/oauth/authorize',
+		},
+		{
+			displayName: 'Access Token URL',
+			name: 'accessTokenUrl',
+			type: 'hidden',
+			default: 'https://auth.calendly.com/oauth/token',
+		},
+		{
+			displayName: 'Authentication',
+			name: 'authentication',
+			type: 'hidden',
+			default: 'header',
+		},
+		{
+			displayName: 'Auth URI Query Parameters',
+			name: 'authQueryParameters',
+			type: 'hidden',
+			default: '',
+		},
+		{
+			displayName: 'Scope',
+			name: 'scope',
+			type: 'hidden',
+			default: '',
+		},
+	];
+}