SEO/AEO, Farb schema, breadcrumbs

bizmatch-server/src/sitemap/sitemap.controller.ts

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+import { Controller, Get, Header, Param, ParseIntPipe } from '@nestjs/common';
+import { SitemapService } from './sitemap.service';
+
+@Controller()
+export class SitemapController {
+  constructor(private readonly sitemapService: SitemapService) {}
+
+  /**
+   * Main sitemap index - lists all sitemap files
+   * Route: /sitemap.xml
+   */
+  @Get('sitemap.xml')
+  @Header('Content-Type', 'application/xml')
+  @Header('Cache-Control', 'public, max-age=3600')
+  async getSitemapIndex(): Promise<string> {
+    return await this.sitemapService.generateSitemapIndex();
+  }
+
+  /**
+   * Static pages sitemap
+   * Route: /sitemap/static.xml
+   */
+  @Get('sitemap/static.xml')
+  @Header('Content-Type', 'application/xml')
+  @Header('Cache-Control', 'public, max-age=3600')
+  async getStaticSitemap(): Promise<string> {
+    return await this.sitemapService.generateStaticSitemap();
+  }
+
+  /**
+   * Business listings sitemap (paginated)
+   * Route: /sitemap/business-1.xml, /sitemap/business-2.xml, etc.
+   */
+  @Get('sitemap/business-:page.xml')
+  @Header('Content-Type', 'application/xml')
+  @Header('Cache-Control', 'public, max-age=3600')
+  async getBusinessSitemap(@Param('page', ParseIntPipe) page: number): Promise<string> {
+    return await this.sitemapService.generateBusinessSitemap(page);
+  }
+
+  /**
+   * Commercial property sitemap (paginated)
+   * Route: /sitemap/commercial-1.xml, /sitemap/commercial-2.xml, etc.
+   */
+  @Get('sitemap/commercial-:page.xml')
+  @Header('Content-Type', 'application/xml')
+  @Header('Cache-Control', 'public, max-age=3600')
+  async getCommercialSitemap(@Param('page', ParseIntPipe) page: number): Promise<string> {
+    return await this.sitemapService.generateCommercialSitemap(page);
+  }
+}

bizmatch-server/src/sitemap/sitemap.module.ts

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+import { Module } from '@nestjs/common';
+import { SitemapController } from './sitemap.controller';
+import { SitemapService } from './sitemap.service';
+import { DrizzleModule } from '../drizzle/drizzle.module';
+
+@Module({
+  imports: [DrizzleModule],
+  controllers: [SitemapController],
+  providers: [SitemapService],
+  exports: [SitemapService],
+})
+export class SitemapModule {}

bizmatch-server/src/sitemap/sitemap.service.ts

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+import { Inject, Injectable } from '@nestjs/common';
+import { eq, sql } from 'drizzle-orm';
+import { NodePgDatabase } from 'drizzle-orm/node-postgres';
+import * as schema from '../drizzle/schema';
+import { PG_CONNECTION } from '../drizzle/schema';
+
+interface SitemapUrl {
+  loc: string;
+  lastmod?: string;
+  changefreq?: 'always' | 'hourly' | 'daily' | 'weekly' | 'monthly' | 'yearly' | 'never';
+  priority?: number;
+}
+
+interface SitemapIndexEntry {
+  loc: string;
+  lastmod?: string;
+}
+
+@Injectable()
+export class SitemapService {
+  private readonly baseUrl = 'https://biz-match.com';
+  private readonly URLS_PER_SITEMAP = 10000; // Google best practice
+
+  constructor(@Inject(PG_CONNECTION) private readonly db: NodePgDatabase<typeof schema>) {}
+
+  /**
+   * Generate sitemap index (main sitemap.xml)
+   * Lists all sitemap files: static, business-1, business-2, commercial-1, etc.
+   */
+  async generateSitemapIndex(): Promise<string> {
+    const sitemaps: SitemapIndexEntry[] = [];
+
+    // Add static pages sitemap
+    sitemaps.push({
+      loc: `${this.baseUrl}/sitemap/static.xml`,
+      lastmod: this.formatDate(new Date()),
+    });
+
+    // Count business listings
+    const businessCount = await this.getBusinessListingsCount();
+    const businessPages = Math.ceil(businessCount / this.URLS_PER_SITEMAP);
+    for (let page = 1; page <= businessPages; page++) {
+      sitemaps.push({
+        loc: `${this.baseUrl}/sitemap/business-${page}.xml`,
+        lastmod: this.formatDate(new Date()),
+      });
+    }
+
+    // Count commercial property listings
+    const commercialCount = await this.getCommercialPropertiesCount();
+    const commercialPages = Math.ceil(commercialCount / this.URLS_PER_SITEMAP);
+    for (let page = 1; page <= commercialPages; page++) {
+      sitemaps.push({
+        loc: `${this.baseUrl}/sitemap/commercial-${page}.xml`,
+        lastmod: this.formatDate(new Date()),
+      });
+    }
+
+    return this.buildXmlSitemapIndex(sitemaps);
+  }
+
+  /**
+   * Generate static pages sitemap
+   */
+  async generateStaticSitemap(): Promise<string> {
+    const urls = this.getStaticPageUrls();
+    return this.buildXmlSitemap(urls);
+  }
+
+  /**
+   * Generate business listings sitemap (paginated)
+   */
+  async generateBusinessSitemap(page: number): Promise<string> {
+    const offset = (page - 1) * this.URLS_PER_SITEMAP;
+    const urls = await this.getBusinessListingUrls(offset, this.URLS_PER_SITEMAP);
+    return this.buildXmlSitemap(urls);
+  }
+
+  /**
+   * Generate commercial property sitemap (paginated)
+   */
+  async generateCommercialSitemap(page: number): Promise<string> {
+    const offset = (page - 1) * this.URLS_PER_SITEMAP;
+    const urls = await this.getCommercialPropertyUrls(offset, this.URLS_PER_SITEMAP);
+    return this.buildXmlSitemap(urls);
+  }
+
+  /**
+   * Build XML sitemap index
+   */
+  private buildXmlSitemapIndex(sitemaps: SitemapIndexEntry[]): string {
+    const sitemapElements = sitemaps
+      .map(sitemap => {
+        let element = `  <sitemap>\n    <loc>${sitemap.loc}</loc>`;
+        if (sitemap.lastmod) {
+          element += `\n    <lastmod>${sitemap.lastmod}</lastmod>`;
+        }
+        element += '\n  </sitemap>';
+        return element;
+      })
+      .join('\n');
+
+    return `<?xml version="1.0" encoding="UTF-8"?>
+<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+${sitemapElements}
+</sitemapindex>`;
+  }
+
+  /**
+   * Build XML sitemap string
+   */
+  private buildXmlSitemap(urls: SitemapUrl[]): string {
+    const urlElements = urls.map(url => this.buildUrlElement(url)).join('\n  ');
+
+    return `<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  ${urlElements}
+</urlset>`;
+  }
+
+  /**
+   * Build single URL element
+   */
+  private buildUrlElement(url: SitemapUrl): string {
+    let element = `<url>\n    <loc>${url.loc}</loc>`;
+
+    if (url.lastmod) {
+      element += `\n    <lastmod>${url.lastmod}</lastmod>`;
+    }
+
+    if (url.changefreq) {
+      element += `\n    <changefreq>${url.changefreq}</changefreq>`;
+    }
+
+    if (url.priority !== undefined) {
+      element += `\n    <priority>${url.priority.toFixed(1)}</priority>`;
+    }
+
+    element += '\n  </url>';
+    return element;
+  }
+
+  /**
+   * Get static page URLs
+   */
+  private getStaticPageUrls(): SitemapUrl[] {
+    return [
+      {
+        loc: `${this.baseUrl}/`,
+        changefreq: 'daily',
+        priority: 1.0,
+      },
+      {
+        loc: `${this.baseUrl}/home`,
+        changefreq: 'daily',
+        priority: 1.0,
+      },
+      {
+        loc: `${this.baseUrl}/businessListings`,
+        changefreq: 'daily',
+        priority: 0.9,
+      },
+      {
+        loc: `${this.baseUrl}/commercialPropertyListings`,
+        changefreq: 'daily',
+        priority: 0.9,
+      },
+      {
+        loc: `${this.baseUrl}/brokerListings`,
+        changefreq: 'daily',
+        priority: 0.8,
+      },
+      {
+        loc: `${this.baseUrl}/terms-of-use`,
+        changefreq: 'monthly',
+        priority: 0.5,
+      },
+      {
+        loc: `${this.baseUrl}/privacy-statement`,
+        changefreq: 'monthly',
+        priority: 0.5,
+      },
+    ];
+  }
+
+  /**
+   * Count business listings (non-draft)
+   */
+  private async getBusinessListingsCount(): Promise<number> {
+    try {
+      const result = await this.db
+        .select({ count: sql<number>`count(*)` })
+        .from(schema.businesses_json)
+        .where(sql`(${schema.businesses_json.data}->>'draft')::boolean IS NOT TRUE`);
+
+      return Number(result[0]?.count || 0);
+    } catch (error) {
+      console.error('Error counting business listings:', error);
+      return 0;
+    }
+  }
+
+  /**
+   * Count commercial properties (non-draft)
+   */
+  private async getCommercialPropertiesCount(): Promise<number> {
+    try {
+      const result = await this.db
+        .select({ count: sql<number>`count(*)` })
+        .from(schema.commercials_json)
+        .where(sql`(${schema.commercials_json.data}->>'draft')::boolean IS NOT TRUE`);
+
+      return Number(result[0]?.count || 0);
+    } catch (error) {
+      console.error('Error counting commercial properties:', error);
+      return 0;
+    }
+  }
+
+  /**
+   * Get business listing URLs from database (paginated, slug-based)
+   */
+  private async getBusinessListingUrls(offset: number, limit: number): Promise<SitemapUrl[]> {
+    try {
+      const listings = await this.db
+        .select({
+          id: schema.businesses_json.id,
+          slug: sql<string>`${schema.businesses_json.data}->>'slug'`,
+          updated: sql<Date>`(${schema.businesses_json.data}->>'updated')::timestamptz`,
+          created: sql<Date>`(${schema.businesses_json.data}->>'created')::timestamptz`,
+        })
+        .from(schema.businesses_json)
+        .where(sql`(${schema.businesses_json.data}->>'draft')::boolean IS NOT TRUE`)
+        .limit(limit)
+        .offset(offset);
+
+      return listings.map(listing => {
+        const urlSlug = listing.slug || listing.id;
+        return {
+          loc: `${this.baseUrl}/business/${urlSlug}`,
+          lastmod: this.formatDate(listing.updated || listing.created),
+          changefreq: 'weekly' as const,
+          priority: 0.8,
+        };
+      });
+    } catch (error) {
+      console.error('Error fetching business listings for sitemap:', error);
+      return [];
+    }
+  }
+
+  /**
+   * Get commercial property URLs from database (paginated, slug-based)
+   */
+  private async getCommercialPropertyUrls(offset: number, limit: number): Promise<SitemapUrl[]> {
+    try {
+      const properties = await this.db
+        .select({
+          id: schema.commercials_json.id,
+          slug: sql<string>`${schema.commercials_json.data}->>'slug'`,
+          updated: sql<Date>`(${schema.commercials_json.data}->>'updated')::timestamptz`,
+          created: sql<Date>`(${schema.commercials_json.data}->>'created')::timestamptz`,
+        })
+        .from(schema.commercials_json)
+        .where(sql`(${schema.commercials_json.data}->>'draft')::boolean IS NOT TRUE`)
+        .limit(limit)
+        .offset(offset);
+
+      return properties.map(property => {
+        const urlSlug = property.slug || property.id;
+        return {
+          loc: `${this.baseUrl}/commercial-property/${urlSlug}`,
+          lastmod: this.formatDate(property.updated || property.created),
+          changefreq: 'weekly' as const,
+          priority: 0.8,
+        };
+      });
+    } catch (error) {
+      console.error('Error fetching commercial properties for sitemap:', error);
+      return [];
+    }
+  }
+
+  /**
+   * Format date to ISO 8601 format (YYYY-MM-DD)
+   */
+  private formatDate(date: Date | string): string {
+    if (!date) return new Date().toISOString().split('T')[0];
+    const d = typeof date === 'string' ? new Date(date) : date;
+    return d.toISOString().split('T')[0];
+  }
+}