feat(Supabase Node): Add support for database schema (#13339)

Co-authored-by: Dana <152518854+dana-gill@users.noreply.github.com>
Co-authored-by: Dana Lee <dana@n8n.io>

packages/nodes-base/nodes/Supabase/GenericFunctions.ts

@@ -28,6 +28,15 @@ export async function supabaseApiRequest(
 		serviceRole: string;
 	}>('supabaseApi');
 
+	if (this.getNodeParameter('useCustomSchema', false)) {
+		const schema = this.getNodeParameter('schema', 'public');
+		if (['POST', 'PATCH', 'PUT', 'DELETE'].includes(method)) {
+			headers['Content-Profile'] = schema;
+		} else if (['GET', 'HEAD'].includes(method)) {
+			headers['Accept-Profile'] = schema;
+		}
+	}
+
 	const options: IRequestOptions = {
 		headers: {
 			Prefer: 'return=representation',
@@ -35,18 +44,20 @@ export async function supabaseApiRequest(
 		method,
 		qs,
 		body,
-		uri: uri || `${credentials.host}/rest/v1${resource}`,
+		uri: uri ?? `${credentials.host}/rest/v1${resource}`,
 		json: true,
 	};
+
 	try {
-		if (Object.keys(headers).length !== 0) {
+		options.headers = Object.assign({}, options.headers, headers);
-			options.headers = Object.assign({}, options.headers, headers);
-		}
 		if (Object.keys(body).length === 0) {
 			delete options.body;
 		}
 		return await this.helpers.requestWithAuthentication.call(this, 'supabaseApi', options);
 	} catch (error) {
+		if (error.description) {
+			error.message = `${error.message}: ${error.description}`;
+		}
 		throw new NodeApiError(this.getNode(), error as JsonObject);
 	}
 }

packages/nodes-base/nodes/Supabase/RowDescription.ts

@@ -60,6 +60,7 @@ export const rowFields: INodeProperties[] = [
 		description:
 			'Choose from the list, or specify an ID using an <a href="https://docs.n8n.io/code/expressions/">expression</a>',
 		typeOptions: {
+			loadOptionsDependsOn: ['useCustomSchema', 'schema'],
 			loadOptionsMethod: 'getTables',
 		},
 		required: true,

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

@@ -51,6 +51,24 @@ export class Supabase implements INodeType {
 			},
 		],
 		properties: [
+			{
+				displayName: 'Use Custom Schema',
+				name: 'useCustomSchema',
+				type: 'boolean',
+				default: false,
+				noDataExpression: true,
+				description:
+					'Whether to use a database schema different from the default "public" schema (requires schema exposure in the <a href="https://supabase.com/docs/guides/api/using-custom-schemas?queryGroups=language&language=curl#exposing-custom-schemas">Supabase API</a>)',
+			},
+			{
+				displayName: 'Schema',
+				name: 'schema',
+				type: 'string',
+				default: 'public',
+				description: 'Name of database schema to use for table',
+				noDataExpression: false,
+				displayOptions: { show: { useCustomSchema: [true] } },
+			},
 			{
 				displayName: 'Resource',
 				name: 'resource',

packages/nodes-base/nodes/Supabase/tests/Supabase.node.test.ts

@@ -14,14 +14,22 @@ import { Supabase } from '../Supabase.node';
 
 describe('Test Supabase Node', () => {
 	const node = new Supabase();
-
 	const input = [{ json: {} }];
+	const mockRequestWithAuthentication = jest.fn().mockResolvedValue([]);
+
+	beforeEach(() => {
+		jest.clearAllMocks();
+	});
 
 	const createMockExecuteFunction = (
 		nodeParameters: IDataObject,
 		continueOnFail: boolean = false,
 	) => {
 		const fakeExecuteFunction = {
+			getCredentials: jest.fn().mockResolvedValue({
+				host: 'https://api.supabase.io',
+				serviceRole: 'service_role',
+			}),
 			getNodeParameter(
 				parameterName: string,
 				itemIndex: number,
@@ -29,13 +37,10 @@ describe('Test Supabase Node', () => {
 				options?: IGetNodeParameterOptions | undefined,
 			) {
 				const parameter = options?.extractValue ? `${parameterName}.value` : parameterName;
-
 				const parameterValue = get(nodeParameters, parameter, fallbackValue);
-
 				if ((parameterValue as IDataObject)?.nodeOperationError) {
 					throw new NodeOperationError(mock(), 'Get Options Error', { itemIndex });
 				}
-
 				return parameterValue;
 			},
 			getNode() {
@@ -44,6 +49,7 @@ describe('Test Supabase Node', () => {
 			continueOnFail: () => continueOnFail,
 			getInputData: () => input,
 			helpers: {
+				requestWithAuthentication: mockRequestWithAuthentication,
 				constructExecutionMetaData: (
 					_inputData: INodeExecutionData[],
 					_options: { itemData: IPairedItemData | IPairedItemData[] },
@@ -95,5 +101,102 @@ describe('Test Supabase Node', () => {
 				offset: 0,
 			},
 		);
+
+		supabaseApiRequest.mockRestore();
+	});
+
+	it('should not set schema headers if no custom schema is used', async () => {
+		const fakeExecuteFunction = createMockExecuteFunction({
+			resource: 'row',
+			operation: 'getAll',
+			returnAll: true,
+			useCustomSchema: false,
+			schema: 'public',
+			tableId: 'my_table',
+		});
+
+		await node.execute.call(fakeExecuteFunction);
+
+		expect(mockRequestWithAuthentication).toHaveBeenCalledWith(
+			'supabaseApi',
+			expect.objectContaining({
+				method: 'GET',
+				headers: expect.objectContaining({
+					Prefer: 'return=representation',
+				}),
+				uri: 'https://api.supabase.io/rest/v1/my_table',
+			}),
+		);
+	});
+
+	it('should set the schema headers for GET calls if custom schema is used', async () => {
+		const fakeExecuteFunction = createMockExecuteFunction({
+			resource: 'row',
+			operation: 'getAll',
+			returnAll: true,
+			useCustomSchema: true,
+			schema: 'custom_schema',
+			tableId: 'my_table',
+		});
+
+		await node.execute.call(fakeExecuteFunction);
+
+		expect(mockRequestWithAuthentication).toHaveBeenCalledWith(
+			'supabaseApi',
+			expect.objectContaining({
+				method: 'GET',
+				headers: expect.objectContaining({
+					'Accept-Profile': 'custom_schema',
+					Prefer: 'return=representation',
+				}),
+				uri: 'https://api.supabase.io/rest/v1/my_table',
+			}),
+		);
+	});
+
+	it('should set the schema headers for POST calls if custom schema is used', async () => {
+		const fakeExecuteFunction = createMockExecuteFunction({
+			resource: 'row',
+			operation: 'create',
+			returnAll: true,
+			useCustomSchema: true,
+			schema: 'custom_schema',
+			tableId: 'my_table',
+		});
+
+		await node.execute.call(fakeExecuteFunction);
+
+		expect(mockRequestWithAuthentication).toHaveBeenCalledWith(
+			'supabaseApi',
+			expect.objectContaining({
+				method: 'POST',
+				headers: expect.objectContaining({
+					'Content-Profile': 'custom_schema',
+					Prefer: 'return=representation',
+				}),
+				uri: 'https://api.supabase.io/rest/v1/my_table',
+			}),
+		);
+	});
+
+	it('should show descriptive message when error is caught', async () => {
+		const fakeExecuteFunction = createMockExecuteFunction({
+			resource: 'row',
+			operation: 'create',
+			returnAll: true,
+			useCustomSchema: true,
+			schema: '',
+			tableId: 'my_table',
+		});
+
+		fakeExecuteFunction.helpers.requestWithAuthentication = jest.fn().mockRejectedValue({
+			description: 'Something when wrong',
+			message: 'error',
+		});
+
+		await expect(node.execute.call(fakeExecuteFunction)).rejects.toHaveProperty(
+			'message',
+			'error: Something when wrong',
+		);
 	});
 });