Feature/paired item support (#3869)

* Add paired item helper and implement it in some nodes

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

@@ -153,7 +153,7 @@ export class Zoom implements INodeType {
 
 	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
 		const items = this.getInputData();
-		const returnData: IDataObject[] = [];
+		const returnData: INodeExecutionData[] = [];
 		let qs: IDataObject = {};
 		let responseData;
 		const resource = this.getNodeParameter('resource', 0) as string;
@@ -202,6 +202,10 @@ export class Zoom implements INodeType {
 							responseData = await zoomApiRequest.call(this, 'GET', '/users/me/meetings', {}, qs);
 							responseData = responseData.meetings;
 						}
+						responseData = this.helpers.constructExecutionMetaData(
+							this.helpers.returnJsonArray(responseData),
+							{ itemData: { item: i } },
+						);
 					}
 					if (operation === 'delete') {
 						//https://marketplace.zoom.us/docs/api-reference/zoom-api/meetings/meetingdelete
@@ -773,20 +777,25 @@ export class Zoom implements INodeType {
 				// 		);
 				// 	}
 				// }
-				if (Array.isArray(responseData)) {
-					returnData.push.apply(returnData, responseData as IDataObject[]);
-				} else {
-					returnData.push(responseData as IDataObject);
-				}
+				const executionData = this.helpers.constructExecutionMetaData(
+					this.helpers.returnJsonArray(returnData),
+					{ itemData: { item: i } },
+				);
+				returnData.push(...executionData);
 			} catch (error) {
 				if (this.continueOnFail()) {
-					returnData.push({ error: error.message });
+					const executionErrorData = {
+						json: {} as IDataObject,
+						error: error.message,
+						itemIndex: i,
+					};
+					returnData.push(executionErrorData as INodeExecutionData);
 					continue;
 				}
 				throw error;
 			}
 		}
 
-		return [this.helpers.returnJsonArray(returnData)];
+		return this.prepareOutputData(returnData);
 	}
 }