This is a full list of the Graph API root nodes such as comment, debug_token, post, profile and so on. The main difference between a root node and a non-root node is that root nodes can be queried directly, while non-root nodes can be queried via root nodes or edges. If you want to learn how to use the Graph API, read our Using Graph API guide, and if you want to know which APIs can solve some frequent issues, try our Common Scenarios guide.
We cover the basics of Graph API terminology and structure in the Graph API overview. This document goes into more detail about the results from your API requests.
The Page Public Content Access feature allows an app access to the Pages Search API and to read public data for Pages
The allowed usage for this feature is to analyze engagement with public Pages by viewing Like and follower counts, or aggregate public-facing About Page information from multiple, disparate pages.
The Page Mentioning feature allows your app mention any Facebook Page when publishing posts on the Pages managed by your app.
Apps request specific permissions to access specific parts of Facebook Graph data.
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A rate limit is the number of API calls an app or user can make within a given time period. If this limit is exceeded or if CPU or total time limits are exceeded, the app or user may be throttled. API requests made by a throttled user or app will fail.
Graph Api Explorer tool lets you make calls to Facebook's Graph API. Log into Facebook to use this tool.