feat: add nextPageCursor

src/Socket/business.ts

@@ -1,6 +1,6 @@
-import { ProductCreate, ProductUpdate, SocketConfig } from '../Types'
+import { CatalogCursor, ProductCreate, ProductUpdate, SocketConfig } from '../Types'
 import { parseCatalogNode, parseCollectionsNode, parseOrderDetailsNode, parseProductNode, toProductNode, uploadingNecessaryImagesOfProduct } from '../Utils/business'
-import { jidNormalizedUser, S_WHATSAPP_NET } from '../WABinary'
+import { BinaryNode, jidNormalizedUser, S_WHATSAPP_NET } from '../WABinary'
 import { getBinaryNodeChild } from '../WABinary/generic-utils'
 import { makeMessagesRecvSocket } from './messages-recv'
 
@@ -12,9 +12,40 @@ export const makeBusinessSocket = (config: SocketConfig) => {
 		waUploadToServer
 	} = sock
 
-	const getCatalog = async(jid?: string, limit = 10) => {
+	const getCatalog = async(
+		jid?: string,
+		limit = 10,
+		cursor?: CatalogCursor
+	) => {
 		jid = jid || authState.creds.me?.id
 		jid = jidNormalizedUser(jid!)
+
+		const queryParamNodes: BinaryNode[] = [
+			{
+				tag: 'limit',
+				attrs: { },
+				content: Buffer.from(limit.toString())
+			},
+			{
+				tag: 'width',
+				attrs: { },
+				content: Buffer.from('100')
+			},
+			{
+				tag: 'height',
+				attrs: { },
+				content: Buffer.from('100')
+			},
+		]
+
+		if(cursor) {
+			queryParamNodes.push({
+				tag: 'after',
+				attrs: { },
+				content: cursor
+			})
+		}
+
 		const result = await query({
 			tag: 'iq',
 			attrs: {
@@ -29,23 +60,7 @@ export const makeBusinessSocket = (config: SocketConfig) => {
 						jid,
 						allow_shop_source: 'true'
 					},
-					content: [
+					content: queryParamNodes
-						{
-							tag: 'limit',
-							attrs: { },
-							content: Buffer.from(limit.toString())
-						},
-						{
-							tag: 'width',
-							attrs: { },
-							content: Buffer.from('100')
-						},
-						{
-							tag: 'height',
-							attrs: { },
-							content: Buffer.from('100')
-						}
-					]
 				}
 			]
 		})

src/Types/Product.ts

@@ -70,4 +70,6 @@ export type OrderProduct = {
 export type OrderDetails = {
 	price: OrderPrice
 	products: OrderProduct[]
-}
+}
+
+export type CatalogCursor = string

src/Utils/business.ts

@@ -7,7 +7,14 @@ import { getStream, getUrlFromDirectPath, toReadable } from './messages-media'
 export const parseCatalogNode = (node: BinaryNode) => {
 	const catalogNode = getBinaryNodeChild(node, 'product_catalog')
 	const products = getBinaryNodeChildren(catalogNode, 'product').map(parseProductNode)
-	return { products }
+	const paging = getBinaryNodeChild(catalogNode, 'paging')
+
+	return {
+		products,
+		nextPageCursor: paging
+			? getBinaryNodeChildString(paging, 'after')
+			: undefined
+	}
 }
 
 export const parseCollectionsNode = (node: BinaryNode) => {