feat(HTTP Request Node): Interval Between Requests option for paginat…

…ion (#8224)

## Summary
Option to add delay between request when using pagination

![image](https://github.com/n8n-io/n8n/assets/88898367/df93f9c7-2569-4d22-a719-494d9dfe8030)

## Related tickets and issues

https://linear.app/n8n/issue/NODE-1029/http-request-pagination-feature-doesnt-use-batch-settings
#8062

packages/core/src/NodeExecuteFunctions.ts

@@ -115,6 +115,7 @@ import {
 	ExecutionBaseError,
 	jsonParse,
 	ApplicationError,
+	sleep,
 } from 'n8n-workflow';
 import type { Token } from 'oauth-1.0a';
 import clientOAuth1 from 'oauth-1.0a';
@@ -2748,6 +2749,9 @@ const getRequestHelperFunctions = (
 				) as boolean;
 
 				if (makeAdditionalRequest) {
+					if (paginationOptions.requestInterval) {
+						await sleep(paginationOptions.requestInterval);
+					}
 					if (tempResponseData.statusCode < 200 || tempResponseData.statusCode >= 300) {
 						// We have it configured to let all requests pass no matter the response code
 						// via "requestOptions.simple = false" to not by default fail if it is for example

packages/nodes-base/nodes/HttpRequest/V3/HttpRequestV3.node.ts

@@ -1143,6 +1143,23 @@ export class HttpRequestV3 implements INodeType {
 											default: 100,
 											description: 'Maximum amount of request to be make',
 										},
+										{
+											// eslint-disable-next-line n8n-nodes-base/node-param-display-name-miscased
+											displayName: 'Interval Between Requests (ms)',
+											name: 'requestInterval',
+											type: 'number',
+											displayOptions: {
+												hide: {
+													paginationMode: ['off'],
+												},
+											},
+											default: 0,
+											description: 'Time in milliseconds to wait between requests',
+											hint: 'At 0 no delay will be added',
+											typeOptions: {
+												minValue: 0,
+											},
+										},
 									],
 								},
 							],
@@ -1272,6 +1289,7 @@ export class HttpRequestV3 implements INodeType {
 			completeExpression: string;
 			limitPagesFetched: boolean;
 			maxRequests: number;
+			requestInterval: number;
 		};
 
 		for (let itemIndex = 0; itemIndex < items.length; itemIndex++) {
@@ -1653,6 +1671,7 @@ export class HttpRequestV3 implements INodeType {
 				const paginationData: PaginationOptions = {
 					continue: continueExpression,
 					request: {},
+					requestInterval: pagination.requestInterval,
 				};
 
 				if (pagination.paginationMode === 'updateAParameterInEachRequest') {

packages/workflow/src/Interfaces.ts

@@ -526,6 +526,7 @@ export interface PaginationOptions {
 	binaryResult?: boolean;
 	continue: boolean | string;
 	request: IRequestOptionsSimplifiedAuth;
+	requestInterval: number;
 	maxRequests?: number;
 }