Route Shadow traffic from banners queries

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+### Changed
+
+- Start testing 10% of the fetchBanners traffic to intsch and compare the result against the VTEX /IO version.
+
 ## [1.82.0] - 2025-10-01
 
 ### Changed

node/clients/intelligent-search-api.ts

@@ -2,7 +2,7 @@ import type { InstanceOptions, IOContext } from '@vtex/api'
 import { ExternalClient } from '@vtex/api'
 
 import { parseState } from '../utils/searchState'
-import type { IIntelligentSearchClient } from './intsch/types'
+import type { FetchBannersArgs, IIntelligentSearchClient } from './intsch/types'
 
 const isPathTraversal = (str: string) => str.indexOf('..') >= 0
 
@@ -18,9 +18,6 @@ interface AutocompleteSearchSuggestionsParams {
   query: string
 }
 
-interface BannersArgs {
-  query: string
-}
 
 interface FacetsArgs {
   query?: string
@@ -103,13 +100,13 @@ export class IntelligentSearchApi
     })
   }
 
-  public async banners(params: BannersArgs, path: string) {
-    if (isPathTraversal(path)) {
+  public async fetchBanners(params: FetchBannersArgs) {
+    if (isPathTraversal(params.path)) {
       throw new Error('Malformed URL')
     }
 
-    return this.http.get(`/banners/${path}`, {
-      params: { ...params, query: params.query, locale: this.locale },
+    return this.http.get(`/banners/${params.path}`, {
+      params: { query: params.query, locale: this.locale },
       metric: 'banners',
     })
   }

node/clients/intsch/index.ts

@@ -5,6 +5,8 @@ import {
   AutocompleteSuggestionsResponse,
   CorrectionArgs,
   CorrectionResponse,
+  FetchBannersArgs,
+  FetchBannersResponse,
   IIntelligentSearchClient,
   SearchSuggestionsArgs,
   SearchSuggestionsResponse,
@@ -58,4 +60,11 @@ export class Intsch extends JanusClient implements IIntelligentSearchClient {
       metric: 'correction-new',
     })
   }
+
+  public fetchBanners(args: FetchBannersArgs): Promise<FetchBannersResponse> {
+    return this.http.get(`/api/intelligent-search/v0/banners/${args.path}`, {
+      params: { query: args.query, locale: this.locale },
+      metric: 'banners-new',
+    })
+  }
 }

node/clients/intsch/types.ts

@@ -18,7 +18,7 @@ export type AutocompleteSuggestionsResponse = {
 }
 
 export type TopSearchesResponse = {
-  searches:  {
+  searches: {
     term: string
     count: number
   }[]
@@ -48,12 +48,29 @@ export type CorrectionResponse = {
   }
 }
 
+export type FetchBannersArgs = {
+  query: string
+  path: string
+}
+
+export type FetchBannersResponse = {
+  banners: {
+    id: string
+    name: string
+    area: string
+    html: string
+  }[]
+}
+
 // eslint-disable-next-line @typescript-eslint/interface-name-prefix
 export interface IIntelligentSearchClient {
   fetchAutocompleteSuggestions(
     args: AutocompleteSuggestionsArgs
   ): Promise<AutocompleteSuggestionsResponse>
   fetchTopSearches(): Promise<TopSearchesResponse>
-  fetchSearchSuggestions(args: SearchSuggestionsArgs): Promise<SearchSuggestionsResponse>
+  fetchSearchSuggestions(
+    args: SearchSuggestionsArgs
+  ): Promise<SearchSuggestionsResponse>
   fetchCorrection(args: CorrectionArgs): Promise<CorrectionResponse>
+  fetchBanners(args: FetchBannersArgs): Promise<FetchBannersResponse>
 }

node/mocks/intsch.ts

@@ -4,6 +4,7 @@ import type {
   TopSearchesResponse,
   SearchSuggestionsResponse,
   CorrectionResponse,
+  FetchBannersResponse,
 } from '../clients/intsch/types'
 
 export class MockedIntschClient implements IIntelligentSearchClient {
@@ -37,17 +38,25 @@ export class MockedIntschClient implements IIntelligentSearchClient {
     } else {
       this.fetchCorrection.mockResolvedValue(args?.fetchCorrection ?? null)
     }
+
+    if (args?.fetchBanners instanceof Error) {
+      this.fetchBanners.mockRejectedValue(args.fetchBanners)
+    } else {
+      this.fetchBanners.mockResolvedValue(args?.fetchBanners ?? null)
+    }
   }
 
   public fetchAutocompleteSuggestions = jest.fn()
   public fetchTopSearches = jest.fn()
   public fetchSearchSuggestions = jest.fn()
   public fetchCorrection = jest.fn()
+  public fetchBanners = jest.fn()
 }
 
 export type IntelligentSearchClientArgs = {
   fetchAutocompleteSuggestions?: AutocompleteSuggestionsResponse | Error
   fetchTopSearches?: TopSearchesResponse | Error
   fetchSearchSuggestions?: SearchSuggestionsResponse | Error
   fetchCorrection?: CorrectionResponse | Error
+  fetchBanners?: FetchBannersResponse | Error
 }

node/resolvers/search/index.ts

@@ -39,6 +39,7 @@ import {
   fetchSearchSuggestions,
   fetchCorrection,
 } from '../../services/autocomplete'
+import { fetchBanners } from '../../services/banners'
 interface ProductIndentifier {
   field: 'id' | 'slug' | 'ean' | 'reference' | 'sku'
   value: string
@@ -791,14 +792,7 @@ export const queries = {
     args: { fullText: string; selectedFacets: SelectedFacet[] },
     ctx: Context
   ) => {
-    const { intelligentSearchApi } = ctx.clients
-
-    return intelligentSearchApi.banners(
-      {
-        query: args.fullText,
-      },
-      buildAttributePath(args.selectedFacets)
-    )
+    return fetchBanners(ctx, args)
   },
   correction: (_: any, args: { fullText: string }, ctx: Context) => {
     return fetchCorrection(ctx, args.fullText)

node/services/autocomplete.ts

@@ -1,32 +1,8 @@
-import type { Context } from '@vtex/api'
 
-import type { Clients } from '../clients'
-
-/**
- * Helper function to execute intsch as primary with intelligentSearchApi as fallback
- */
-async function withFallback<T>(
-  primaryFn: () => Promise<T>,
-  fallbackFn: () => Promise<T>,
-  logger: any,
-  operationName: string,
-  args?: Record<string, unknown>
-): Promise<T> {
-  try {
-    return await primaryFn()
-  } catch (error) {
-    logger.warn({
-      message: `${operationName}: Primary call failed, using fallback`,
-      error: error.message,
-      args,
-    })
-
-    return fallbackFn()
-  }
-}
+import { withFallback } from '../utils/with-fallback'
 
 export function fetchAutocompleteSuggestions(
-  ctx: Context<Clients>,
+  ctx: Context,
   query: string
 ) {
   const { intelligentSearchApi, intsch } = ctx.clients
@@ -40,7 +16,7 @@ export function fetchAutocompleteSuggestions(
   )
 }
 
-export function fetchTopSearches(ctx: Context<Clients>) {
+export function fetchTopSearches(ctx: Context) {
   const { intelligentSearchApi, intsch } = ctx.clients
 
   return withFallback(
@@ -52,7 +28,7 @@ export function fetchTopSearches(ctx: Context<Clients>) {
   )
 }
 
-export function fetchSearchSuggestions(ctx: Context<Clients>, query: string) {
+export function fetchSearchSuggestions(ctx: Context, query: string) {
   const { intelligentSearchApi, intsch } = ctx.clients
 
   return withFallback(
@@ -64,7 +40,7 @@ export function fetchSearchSuggestions(ctx: Context<Clients>, query: string) {
   )
 }
 
-export function fetchCorrection(ctx: Context<Clients>, query: string) {
+export function fetchCorrection(ctx: Context, query: string) {
   const { intelligentSearchApi, intsch } = ctx.clients
 
   return withFallback(

node/services/banners.ts

@@ -0,0 +1,26 @@
+import { compareApiResults } from '../utils/compareResults'
+import { buildAttributePath } from '../commons/compatibility-layer';
+
+export async function fetchBanners(
+  ctx: Context,
+  args: { fullText: string; selectedFacets: SelectedFacet[] }
+) {
+  const { intelligentSearchApi, intsch } = ctx.clients
+
+  const argumentsToFetchBanners = {
+    query: args.fullText,
+    path: buildAttributePath(args.selectedFacets),
+  }
+
+  return compareApiResults(
+    () => intelligentSearchApi.fetchBanners(argumentsToFetchBanners),
+    () =>
+      intsch.fetchBanners(argumentsToFetchBanners),
+    ctx.vtex.production ? 10 : 100,
+    ctx.vtex.logger,
+    {
+      logPrefix: 'Banners',
+      args: argumentsToFetchBanners,
+    }
+  )
+}

node/utils/with-fallback.ts

@@ -0,0 +1,22 @@
+/**
+ * Helper function to execute intsch as primary with intelligentSearchApi as fallback
+ */
+export async function withFallback<T>(
+    primaryFn: () => Promise<T>,
+    fallbackFn: () => Promise<T>,
+    logger: any,
+    operationName: string,
+    args?: Record<string, unknown>
+  ): Promise<T> {
+    try {
+      return await primaryFn()
+    } catch (error) {
+      logger.warn({
+        message: `${operationName}: Primary call failed, using fallback`,
+        error: error.message,
+        args,
+      })
+
+      return fallbackFn()
+    }
+  }