chore: created WechatSearchService

src/api/searcher-serper.ts

@@ -22,6 +22,7 @@ import { JinaEmbeddingsAuthDTO } from '../dto/jina-embeddings-auth';
 import { InsufficientBalanceError } from '../services/errors';
 import { SerperImageSearchResponse, SerperNewsSearchResponse, SerperSearchQueryParams, SerperSearchResponse, SerperWebSearchResponse, WORLD_COUNTRIES, WORLD_LANGUAGES } from '../shared/3rd-party/serper-search';
 import { toAsyncGenerator } from '../utils/misc';
+import { WechatSearchService } from '../services/wechat-search';
 
 const WORLD_COUNTRY_CODES = Object.keys(WORLD_COUNTRIES).map((x) => x.toLowerCase());
 
@@ -49,6 +50,7 @@ export class SearcherHost extends RPCHost {
         protected serperSearchService: SerperSearchService,
         protected crawler: CrawlerHost,
         protected snapshotFormatter: SnapshotFormatter,
+        protected wechatSearchService: WechatSearchService,
     ) {
         super(...arguments);
     }
@@ -88,10 +90,10 @@ export class SearcherHost extends RPCHost {
         searchExplicitOperators: GoogleSearchExplicitOperatorsDto,
         @Param('count', { validate: (v: number) => v >= 0 && v <= 20 })
         count: number,
-        @Param('type', { type: new Set(['web', 'images', 'news']), default: 'web' })
-        variant: 'web' | 'images' | 'news',
-        @Param('provider', { type: new Set(['google', 'bing', 'wechat']), default: 'google' })
-        searchEngine: 'google' | 'bing' | 'wechat',
+        @Param('type', { type: new Set(['web', 'images', 'news', 'wechat']), default: 'web' })
+        variant: 'web' | 'images' | 'news' | 'wechat',
+        @Param('provider', { type: new Set(['google', 'bing']), default: 'google' })
+        searchEngine: 'google' | 'bing',
         @Param('num', { validate: (v: number) => v >= 0 && v <= 20 })
         num?: number,
         @Param('gl', { validate: (v: string) => WORLD_COUNTRY_CODES.includes(v?.toLowerCase()) }) gl?: string,
@@ -171,9 +173,6 @@ export class SearcherHost extends RPCHost {
         }
 
         let chargeAmountScaler = 1;
-        if (searchEngine === 'wechat') {
-            this.threadLocal.set('wechat-preferred', true);
-        }
         if (searchEngine === 'bing') {
             this.threadLocal.set('bing-preferred', true);
             chargeAmountScaler = 3;
@@ -203,6 +202,10 @@ export class SearcherHost extends RPCHost {
                 results = (r as SerperNewsSearchResponse).news;
                 break;
             }
+            case 'wechat': {
+                results = (r as unknown as SerperWebSearchResponse['organic']);
+                break;
+            }
             case 'web':
             default: {
                 results = (r as SerperWebSearchResponse).organic;
@@ -510,7 +513,7 @@ export class SearcherHost extends RPCHost {
         }
     }
 
-    async cachedSearch(query: SerperSearchQueryParams & { variant: 'web' | 'images' | 'news'; provider?: string; }, noCache: boolean = false) {
+    async cachedSearch(query: SerperSearchQueryParams & { variant: 'web' | 'images' | 'news' | 'wechat'; provider?: string; }, noCache: boolean = false) {
         const queryDigest = objHashMd5B64Of(query);
         Reflect.deleteProperty(query, 'provider');
         let cache;
@@ -546,6 +549,13 @@ export class SearcherHost extends RPCHost {
                     r = await this.serperSearchService.newsSearch(query);
                     break;
                 }
+                case 'wechat':{
+                    r = await this.wechatSearchService.search({
+                        kw: query.q,
+                        page: query.page,
+                    });
+                    break;
+                }
                 case 'web':
                 default: {
                     r = await this.serperSearchService.webSearch(query);

src/services/serper-search.ts

@@ -7,7 +7,6 @@ import { SerperBingHTTP, SerperGoogleHTTP, SerperImageSearchResponse, SerperNews
 import { BlackHoleDetector } from './blackhole-detector';
 import { Context } from './registry';
 import { ServiceBadAttemptError } from '../shared';
-import { WechatSearchHTTP } from '../shared/3rd-party/wechat-search';
 
 @singleton()
 export class SerperSearchService extends AsyncService {
@@ -16,7 +15,6 @@ export class SerperSearchService extends AsyncService {
 
     serperGoogleSearchHTTP!: SerperGoogleHTTP;
     serperBingSearchHTTP!: SerperBingHTTP;
-    wechatSearchHTTP!: WechatSearchHTTP;
 
     constructor(
         protected globalLogger: GlobalLogger,
@@ -33,18 +31,13 @@ export class SerperSearchService extends AsyncService {
 
         this.serperGoogleSearchHTTP = new SerperGoogleHTTP(this.secretExposer.SERPER_SEARCH_API_KEY);
         this.serperBingSearchHTTP = new SerperBingHTTP(this.secretExposer.SERPER_SEARCH_API_KEY);
-        this.wechatSearchHTTP = new WechatSearchHTTP(this.secretExposer.WECHAT_SEARCH_API_KEY);
     }
 
     *iterClient() {
         const preferBingSearch = this.threadLocal.get('bing-preferred');
-        const preferWechatSearch = this.threadLocal.get('wechat-preferred');
         if (preferBingSearch) {
             yield this.serperBingSearchHTTP;
         }
-        if (preferWechatSearch) {
-            yield this.wechatSearchHTTP;
-        }
         while (true) {
             yield this.serperGoogleSearchHTTP;
         }
@@ -66,17 +59,6 @@ export class SerperSearchService extends AsyncService {
             try {
                 this.logger.debug(`Doing external search`, query);
                 let r;
-
-                if (client instanceof WechatSearchHTTP) {
-                    r = await client.blogSearch({
-                        kw: query.q,
-                        page: query.page
-                    });
-
-                    this.blackHoleDetector.itWorked();
-
-                    return r.parsed;
-                }
                 switch (variant) {
                     case 'images': {
                         r = await client.imageSearch(query);

src/services/wechat-search.ts

@@ -0,0 +1,56 @@
+import { singleton } from 'tsyringe';
+import { GlobalLogger } from './logger';
+import { AsyncService, DownstreamServiceFailureError, marshalErrorLike } from 'civkit';
+import { SecretExposer } from '../shared/services/secrets';
+import { WechatBlogQueryParams, WechatSearchHTTP } from '../shared/3rd-party/wechat-search';
+
+
+@singleton()
+export class WechatSearchService extends AsyncService {
+
+  logger = this.globalLogger.child({ service: this.constructor.name });
+
+  wechatSearchHTTP!: WechatSearchHTTP;
+
+  constructor(
+    protected globalLogger: GlobalLogger,
+    protected secretExposer: SecretExposer,
+  ) {
+    super(...arguments);
+  }
+
+  override async init() {
+    await this.dependencyReady();
+    this.emit('ready');
+
+    this.wechatSearchHTTP = new WechatSearchHTTP(this.secretExposer.WECHAT_SEARCH_API_KEY);
+  }
+
+  async search(query: WechatBlogQueryParams) {
+    this.logger.info('searching for official account blogs', query);
+
+    try {
+      // get wechat blog search results and convert format
+      const r = await this.wechatSearchHTTP.blogSearch(query);
+
+      if (r.parsed.code > 100 && r.parsed.code < 200) {
+        throw new DownstreamServiceFailureError({ message: `Search(wechat) failed` });
+      }
+
+      return r.parsed.data?.map((page: any) => {
+        return {
+          title: page.title,
+          link: page.url,
+          content: page.content,
+          snippet: '',
+          publishedTime: page.publish_time,
+          date: page.publish_time_str,
+        };
+      });
+
+    } catch (err: any) {
+      this.logger.error(`Wechat search failed: ${err?.message}`, { err: marshalErrorLike(err) });
+      throw new DownstreamServiceFailureError({ message: `Search(wechat) failed` });
+    }
+  }
+}

thinapps-shared

@@ -1 +1 @@
-Subproject commit 00717c3b08eeaf425d3a0d4880b05714051c01bd
+Subproject commit ba27f5425a0fce93bac00690a867dc97a19dccf3