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, deltaEach 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
| Field | Meaning on Facebook |
|---|---|
impressions | Post impressions |
reach | Unique users reached. Unique video views for videos |
likes | Reaction count |
comments | Comment count |
shares | Share count |
saves | Always null. Facebook does not expose it |
plays | Video views, when available |
engagement | Engaged users or clicks, or the sum of likes plus comments plus shares |
Missing values stay null.
Pending semantics
Errors
| Code | Cause | Fix |
|---|---|---|
NOT_PUBLISHED | Destination not published yet | Wait for publish |
ANALYTICS_PERMISSION | Connection lacks analytics permission | Reconnect the Page |
ANALYTICS_PENDING | Metrics not ready yet | Retry later |
ANALYTICS_FAILED | Hard failure fetching metrics | Retry. Contact support if it persists |