Feature/paired item support (#3869)

* Add paired item helper and implement it in some nodes

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

@@ -6,6 +6,7 @@ import {
 	INodePropertyOptions,
 	INodeType,
 	INodeTypeDescription,
+	JsonObject,
 } from 'n8n-workflow';
 
 import { directMessageFields, directMessageOperations } from './DirectMessageDescription';
@@ -91,7 +92,7 @@ export class Twitter implements INodeType {
 
 	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
 		const items = this.getInputData();
-		const returnData: IDataObject[] = [];
+		const returnData: INodeExecutionData[] = [];
 		const length = items.length;
 		let responseData;
 		const resource = this.getNodeParameter('resource', 0) as string;
@@ -312,19 +313,25 @@ export class Twitter implements INodeType {
 						);
 					}
 				}
-				if (Array.isArray(responseData)) {
-					returnData.push.apply(returnData, responseData as IDataObject[]);
-				} else if (responseData !== undefined) {
-					returnData.push(responseData as IDataObject);
-				}
+				const executionData = this.helpers.constructExecutionMetaData(
+					this.helpers.returnJsonArray(responseData),
+					{ itemData: { item: i } },
+				);
+				returnData.push(...executionData);
 			} catch (error) {
 				if (this.continueOnFail()) {
-					returnData.push({ error: error.message });
+					const executionErrorData = {
+						json: {
+							error: (error as JsonObject).message,
+						},
+					};
+					returnData.push(executionErrorData);
 					continue;
 				}
 				throw error;
 			}
 		}
-		return [this.helpers.returnJsonArray(returnData)];
+
+		return this.prepareOutputData(returnData);
 	}
 }