refactor(core): Deprecate prepareOutputData (no-changelog) (#7091)

packages/workflow/src/Interfaces.ts

@@ -741,6 +741,9 @@ export interface FunctionsBase {
 
 	getMode?: () => WorkflowExecuteMode;
 	getActivationMode?: () => WorkflowActivateMode;
+
+	/** @deprecated */
+	prepareOutputData(outputData: INodeExecutionData[]): Promise<INodeExecutionData[][]>;
 }
 
 type FunctionsBaseWithRequiredKeys<Keys extends keyof FunctionsBase> = FunctionsBase & {
@@ -763,10 +766,6 @@ export type IExecuteFunctions = ExecuteFunctions.GetNodeParameterFn &
 			inputData?: INodeExecutionData[],
 		): Promise<any>;
 		getInputData(inputIndex?: number, inputName?: string): INodeExecutionData[];
-		prepareOutputData(
-			outputData: INodeExecutionData[],
-			outputIndex?: number,
-		): Promise<INodeExecutionData[][]>;
 		putExecutionToWait(waitTill: Date): Promise<void>;
 		sendMessageToUI(message: any): void;
 		sendResponse(response: IExecuteResponsePromiseData): void;
@@ -890,10 +889,6 @@ export interface IWebhookFunctions extends FunctionsBaseWithRequiredKeys<'getMod
 	getRequestObject(): express.Request;
 	getResponseObject(): express.Response;
 	getWebhookName(): string;
-	prepareOutputData(
-		outputData: INodeExecutionData[],
-		outputIndex?: number,
-	): Promise<INodeExecutionData[][]>;
 	nodeHelpers: NodeHelperFunctions;
 	helpers: RequestHelperFunctions &
 		BaseHelperFunctions &

packages/workflow/src/NodeHelpers.ts

@@ -15,7 +15,6 @@ import type {
 	IContextObject,
 	INode,
 	INodeCredentialDescription,
-	INodeExecutionData,
 	INodeIssueObjectProperty,
 	INodeIssues,
 	INodeParameterResourceLocator,
@@ -847,27 +846,6 @@ export function getNodeParameters(
 	return nodeParameters;
 }
 
-/**
- * Brings the output data in a format that can be returned from a node
- *
- * @param {number} [outputIndex=0]
- */
-export async function prepareOutputData(
-	outputData: INodeExecutionData[],
-	outputIndex = 0,
-): Promise<INodeExecutionData[][]> {
-	// TODO: Check if node has output with that index
-	const returnData = [];
-
-	for (let i = 0; i < outputIndex; i++) {
-		returnData.push([]);
-	}
-
-	returnData.push(outputData);
-
-	return returnData;
-}
-
 /**
  * Returns all the webhooks which should be created for the give node
  */

packages/workflow/src/Workflow.ts

@@ -1362,8 +1362,6 @@ export class Workflow {
 				),
 			};
 		}
-
-		return { data: null };
 	}
 }