Initial commit to release

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

@@ -0,0 +1,71 @@
+import { IExecuteFunctions } from 'n8n-core';
+import {
+	INodeExecutionData,
+	INodeType,
+	INodeTypeDescription,
+} from 'n8n-workflow';
+
+
+export class SplitInBatches implements INodeType {
+	description: INodeTypeDescription = {
+		displayName: 'Split In Batches',
+		name: 'splitInBatches',
+		group: ['organization'],
+		version: 1,
+		description: 'Saves the originally incoming data and with each itteration it returns a predefined amount of them.',
+		defaults: {
+			name: 'SplitInBatches',
+			color: '#007755',
+		},
+		inputs: ['main'],
+		outputs: ['main'],
+		properties: [
+			{
+				displayName: 'Batch Size',
+				name: 'batchSize',
+				type: 'number',
+				typeOptions: {
+					minValue: 1,
+				},
+				default: 10,
+				description: 'The number of items to return with each call.',
+			},
+		],
+	};
+
+	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][] | null> {
+		const items = this.getInputData();
+
+		const nodeContext = this.getContext('node');
+
+		const batchSize = this.getNodeParameter('batchSize', 0) as number;
+
+		const returnItems: INodeExecutionData[] = [];
+
+		if (nodeContext.items === undefined) {
+			// Is the first time the node runs
+
+			nodeContext.currentRunIndex = 0;
+			nodeContext.maxRunIndex = Math.ceil(items.length / batchSize);
+
+			// Get the items which should be returned
+			returnItems.push.apply(returnItems, items.splice(0, batchSize));
+
+			// Set the other items to be saved in the context to return at later runs
+			nodeContext.items = items;
+		}  else {
+			// The node has been called before. So return the next batch of items.
+			nodeContext.currentRunIndex += 1;
+			returnItems.push.apply(returnItems, nodeContext.items.splice(0, batchSize));
+		}
+
+		nodeContext.noItemsLeft = nodeContext.items.length === 0;
+
+		if (returnItems.length === 0) {
+			// No data left to return so stop execution of the branch
+			return null;
+		}
+
+		return this.prepareOutputData(returnItems);
+	}
+}