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Analytics

Analytics and normalized metrics for Facebook Page posts.

Read performance metrics for a published Facebook Page post. Requires read_insights on the connection. Pass post as described in Analytics. Use the internal id for Onepostly posts. Use the native post id plus accountId for outside posts.

Request

import { Configuration, AnalyticsApi } from "@onepostly/sdk";

const analyticsApi = new AnalyticsApi(
  new Configuration({ apiKey: process.env.ONEPOSTLY_API_KEY }),
);

const { analytics } = await analyticsApi.getAnalytics({ post: postId });
console.log(analytics.subjects);

Response

{
  "analytics": {
    "post": "POST_ID",
    "status": "ready",
    "fetchedAt": "2026-08-25T10:00:00.000Z",
    "subjects": [
      {
        "scope": "destination",
        "subjectId": "DEST_ID",
        "accountId": "ACCOUNT_ID",
        "platform": "facebook",
        "externalPostId": "123456789_987654321",
        "status": "ready",
        "metrics": {
          "impressions": 8500,
          "reach": 6200,
          "likes": 210,
          "comments": 18,
          "shares": 7,
          "saves": null,
          "plays": null,
          "engagement": 410
        },
        "fetchedAt": "2026-08-25T10:00:00.000Z",
        "expiresAt": "2026-08-25T11:00:00.000Z",
        "error": null
      }
    ]
  }
}

Daily timeline

Day by day cumulative metrics per subject. Optional from and to bound the inclusive UTC date range. The default window covers the last 366 days.

const { timeline } = await analyticsApi.getAnalyticsTimeline({
  post: postId,
  from: "2026-08-01",
  to: "2026-08-28",
});
// timeline.subjects[].points[].day, metrics, delta

Each metrics object holds cumulative totals as captured on that UTC day. delta compares them against the previous stored day. A delta entry stays null when either side has no value. Days without a stored snapshot have no data. The API does not backfill them.

Outside posts

Posts published outside Onepostly work the same way once they are synced. Sync by URL then read analytics with the native id plus accountId. Omit url and postId to refresh the recent posts of the account in bulk.

const { found, post } = await posts.syncExternal({
  syncExternalBody: { accountId, url: "https://www.facebook.com/YourPage/posts/123456789" },
});
if (!found || !post) throw new Error("Post not found on the account.");

const { analytics } = await analyticsApi.getAnalytics({
  post: post.externalPostId,
  accountId,
});

Normalized fields

FieldMeaning on Facebook
impressionsPost impressions
reachUnique users reached. Unique video views for videos
likesReaction count
commentsComment count
sharesShare count
savesAlways null. Facebook does not expose it
playsVideo views, when available
engagementEngaged users or clicks, or the sum of likes plus comments plus shares

Missing values stay null.

Pending semantics

Errors

CodeCauseFix
NOT_PUBLISHEDDestination not published yetWait for publish
ANALYTICS_PERMISSIONConnection lacks analytics permissionReconnect the Page
ANALYTICS_PENDINGMetrics not ready yetRetry later
ANALYTICS_FAILEDHard failure fetching metricsRetry. Contact support if it persists

See also