Microsoft OneDrive service root endpoint

packages/nodes-base/credentials/MicrosoftOneDriveOAuth2Api.credentials.ts

@@ -1,5 +1,19 @@
 import type { ICredentialType, INodeProperties } from 'n8n-workflow';
 
+const enum EndpointNames {
+	Global = 'Microsoft Graph global service',
+	GovCloud = 'Microsoft Graph for US Government L4',
+	DoDCloud = 'Microsoft Graph for US Government L5 (DOD)',
+	China = 'Microsoft Graph China operated by 21Vianet',
+}
+
+const endpoints: Record<EndpointNames, string> = {
+	[EndpointNames.Global]: 'https://graph.microsoft.com',
+	[EndpointNames.GovCloud]: 'https://graph.microsoft.us',
+	[EndpointNames.DoDCloud]: 'https://dod-graph.microsoft.us',
+	[EndpointNames.China]: 'https://microsoftgraph.chinacloudapi.cn',
+};
+
 export class MicrosoftOneDriveOAuth2Api implements ICredentialType {
 	name = 'microsoftOneDriveOAuth2Api';
 
@@ -17,5 +31,16 @@ export class MicrosoftOneDriveOAuth2Api implements ICredentialType {
 			type: 'hidden',
 			default: 'openid offline_access Files.ReadWrite.All',
 		},
+		{
+			displayName: 'Endpoint',
+			description: 'The service root endpoint to use when connecting to the Outlook API.',
+			name: 'graphEndpoint',
+			type: 'options',
+			default: endpoints[EndpointNames.Global],
+			options: Object.keys(endpoints).map((name) => ({
+				name,
+				value: endpoints[name as EndpointNames],
+			})),
+		},
 	];
 }

packages/nodes-base/nodes/Microsoft/OneDrive/GenericFunctions.ts

@@ -21,14 +21,15 @@ export async function microsoftApiRequest(
 	headers: IDataObject = {},
 	option: IDataObject = { json: true },
 ): Promise<any> {
+	const credentials = await this.getCredentials('microsoftOneDriveOAuth2Api');
 	const options: IRequestOptions = {
 		headers: {
 			'Content-Type': 'application/json',
 		},
 		method,
 		body,
 		qs,
-		uri: uri || `https://graph.microsoft.com/v1.0/me${resource}`,
+		uri: uri || `${credentials.graphEndpoint}/v1.0/me${resource}`,
 	};
 	try {
 		Object.assign(options, option);
@@ -145,13 +146,15 @@ export async function getPath(
 	this: IExecuteFunctions | ILoadOptionsFunctions | IPollFunctions,
 	itemId: string,
 ): Promise<string> {
+	const credentials = await this.getCredentials('microsoftOneDriveOAuth2Api');
+
 	const responseData = (await microsoftApiRequest.call(
 		this,
 		'GET',
 		'',
 		{},
 		{},
-		`https://graph.microsoft.com/v1.0/me/drive/items/${itemId}`,
+		`${credentials.graphEndpoint}/v1.0/me/drive/items/${itemId}`,
 	)) as IDataObject;
 	if (responseData.folder) {
 		return (responseData?.parentReference as IDataObject)?.path + `/${responseData?.name}`;

packages/nodes-base/nodes/Microsoft/OneDrive/MicrosoftOneDriveTrigger.node.ts

@@ -41,11 +41,13 @@ export class MicrosoftOneDriveTrigger implements INodeType {
 
 	async poll(this: IPollFunctions): Promise<INodeExecutionData[][] | null> {
 		const workflowData = this.getWorkflowStaticData('node');
+		const credentials = await this.getCredentials('microsoftOneDriveOAuth2Api');
+		const graphEndpoint = credentials.graphEndpoint as string;
+
 		let responseData: IDataObject[];
 
 		const lastLink: string =
-			(workflowData.LastLink as string) ||
-			'https://graph.microsoft.com/v1.0/me/drive/root/delta?token=latest';
+			(workflowData.LastLink as string) || `${graphEndpoint}/v1.0/me/drive/root/delta?token=latest`;
 
 		const now = DateTime.now().toUTC();
 		const start = DateTime.fromISO(workflowData.lastTimeChecked as string) || now;
@@ -72,7 +74,7 @@ export class MicrosoftOneDriveTrigger implements INodeType {
 						'',
 						{},
 						{},
-						'https://graph.microsoft.com/v1.0/me/drive/root/delta',
+						`${graphEndpoint}/v1.0/me/drive/root/delta`,
 					)
 				).value as IDataObject[];
 			} else {