first commit

src/x-poster/facebook.api.ts

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+// src/modules/social/facebook-api.service.ts
+import {HttpException, HttpStatus, Injectable} from '@nestjs/common';
+import axios from 'axios';
+
+@Injectable()
+export class FacebookApi {
+    private readonly fbBaseUrl = 'https://graph.facebook.com/v19.0';
+    private readonly pageAccessToken = process.env.FB_PAGE_ACCESS_TOKEN;
+    private readonly pageId = process.env.FB_PAGE_ID;
+
+    async postToPage(content: string, imageUrl?: string) {
+        // console.log('postToPage==>', content, imageUrl);
+        try {
+            let url = `${this.fbBaseUrl}/${this.pageId}/feed`;
+            let params: any = {
+                message: content + `\n  Disclaimer: For reference only. AI content may have errors. Not liable for inaccuracies or damages. Verify from official sources.`,
+                access_token: this.pageAccessToken,
+            };
+
+            // Nếu có ảnh, chúng ta dùng endpoint /photos
+            if (imageUrl) {
+                url = `${this.fbBaseUrl}/${this.pageId}/photos`;
+                params.url = imageUrl;
+            }
+
+            const response = await axios.post(url, params);
+            //response.data= { id: '1010286162176053_122107818902775551' }
+            return response.data; // Trả về ID bài viết nếu thành công
+        } catch (error) {
+            console.log('Lỗi khi đăng bài lên FB');
+            console.log(error.message);
+            throw new HttpException(
+                error.response?.data || 'Lỗi khi đăng bài lên FB',
+                HttpStatus.BAD_REQUEST,
+            );
+        }
+    }
+}