feat: Add SharePoint credentials (#11570)

packages/nodes-base/credentials/MicrosoftSharePointOAuth2Api.credentials.ts

@@ -0,0 +1,38 @@
+import type { Icon, ICredentialType, INodeProperties } from 'n8n-workflow';
+
+export class MicrosoftSharePointOAuth2Api implements ICredentialType {
+	name = 'microsoftSharePointOAuth2Api';
+
+	extends = ['microsoftOAuth2Api'];
+
+	icon: Icon = {
+		light: 'file:icons/SharePoint.svg',
+		dark: 'file:icons/SharePoint.svg',
+	};
+
+	displayName = 'Microsoft SharePoint OAuth2 API';
+
+	documentationUrl = 'microsoft';
+
+	httpRequestNode = {
+		name: 'Microsoft SharePoint',
+		docsUrl: 'https://learn.microsoft.com/en-us/sharepoint/dev/apis/sharepoint-rest-graph',
+		apiBaseUrlPlaceholder: 'https://{subdomain}.sharepoint.com/_api/v2.0/',
+	};
+
+	properties: INodeProperties[] = [
+		{
+			displayName: 'Scope',
+			name: 'scope',
+			type: 'hidden',
+			default: '=openid offline_access https://{{$self.subdomain}}.sharepoint.com/.default',
+		},
+		{
+			displayName: 'Subdomain',
+			name: 'subdomain',
+			type: 'string',
+			default: '',
+			hint: 'You can extract the subdomain from the URL. For example, in the URL "https://tenant123.sharepoint.com", the subdomain is "tenant123".',
+		},
+	];
+}