Get post performance data across all channels

const fetch = require('node-fetch'); // Only needed if using Node.js < 18

async function fetchPostMetrics({ brandId, token, platform, startDate, endDate }) {
  const baseUrl = `https://library-backend.dashsocial.com/brands/${brandId}/media/v2`;
  const body = {
    limit: 99,
    offset: 0,
    filters: {
      brand_media_types: [platform], // e.g., 'INSTAGRAM_OWNED'
      source_created_at: {
        start: startDate,
        end: endDate
      }
    }
  };

  const headers = {
    'Content-Type': 'application/json',
    'Authorization': `Bearer ${token}`
  };

  async function delay(ms) {
    return new Promise(resolve => setTimeout(resolve, ms));
  }

  let allData = [];
  let nextUrl = `${baseUrl}?limit=99`;

  while (nextUrl) {
    const response = await fetch(nextUrl, {
      method: 'PUT',
      headers,
      body: JSON.stringify(body)
    });

    if (!response.ok) {
      console.error(`Request failed: ${response.status} ${response.statusText}`);
      break;
    }

    const result = await response.json();
    allData = allData.concat(result.data || []);
    nextUrl = result?.paging?.next || null;

    if (nextUrl) {
      await delay(800); // Pause to avoid rate limits
    }
  }

  return allData.map(post => ({
    id: post.brand_media_id,
    predicted_engagement: post.predictions?.engagement,
    actual_engagement: post.instagram?.engagement,
    post_url: post.instagram?.url
  }));
}

// Example usage:
fetchPostMetrics({
  brandId: 'your_brand_id',
  token: 'your_access_token',
  platform: 'INSTAGRAM_OWNED',
  startDate: '2024-01-01',
  endDate: '2024-12-31'
}).then(data => console.log(data));

{
    "data": [
        {
            "brand_id": "{brand_id}",
            "brand_media_id": 822392549,
            "caption_question": {
                "is_question": false,
                "user_overridden": false
            },
            "caption_sentiment": {
                "is_negative": false,
                "is_neutral": true,
                "is_positive": false,
                "user_overridden": false
            },
            "collections": null,
            "comment_sentiment": {
                "is_negative": false,
                "is_neutral": false,
                "is_positive": true
            },
            "community_engagement": null,
            "content_tags": null,
            "created_at": "2025-04-28T17:30:48",
            "custom_metrics": [{"id": 78, "value": null}],
            "facebook": null,
            "id": 526519128,
            "instagram": {
                "caption": "Social media updates you might have missed this week",
                "comments_count": 1,
                "effectiveness": 0.024822695035460994,
                "emv": 473.083,
                "engagement": 0.0007613774009344178,
                "like_count": 18,
                "reach": 846,
                "saved": 2,
                "shares": 1,
                "sum_total_engagement": 22,
                "timestamp": "2025-04-28T17:30:29+00:00",
                "total_comments": 1,
                "total_likes": 18,
                "url": "https://www.instagram.com/p/DI_6vsqj/",
                "views": 1018
            },
            "source": "INSTAGRAM",
            "source_created_at": "2025-04-28T17:30:29",
            "source_type": "OWNED",
            "type": "IMAGE"
        }
    ],
    "paging": {
        "count": 8,
        "next": null,
        "previous": null
    }
}