Facebook Pages

Facebook Pages for fancy-flow — as four imported, versioned packages, one per runtime. Not vendored source: a copy cannot be upgraded, and third-party APIs change.

| Runtime | Package | Install | |---|---|---| | Authoring surface (every host) | @particle-academy/facebook-pages-ui | npm install @particle-academy/facebook-pages-ui | | Node | @particle-academy/facebook-pages-js | npm install @particle-academy/facebook-pages-js | | PHP 8.4+ | particle-academy/facebook-pages-php | composer require particle-academy/facebook-pages-php | | Python 3.11+ | fancy-facebook-pages | pip install fancy-facebook-pages |

The ui package is the editor surface and is React on every host — a PHP or Python project installs it and its own runtime package, and never the js one.

What it costs you

One dependency: @particle-academy/fancy-connector-core (or particle-academy/fancy-connector-core on Composer), which the js and php packages pull in themselves. The Python package has zero runtime dependencies.

No Facebook Pages SDK. Plain HTTP, deliberately: a vendor SDK is third-party code subject to the kit's full approval bar, and one per provider is hundreds of dependencies nobody is tracking.

Setting it up

Everything below is generated from provider/manifest.json, so it cannot disagree with what the packages do.

Credentials

A Facebook Pages connection holds 4 values.

Two kinds of value, and mixing them up matters. A provider credential is ONE value for the whole installation — an OAuth app's client secret serves every connected account. An account credential is one per connected account. A host that stores the second where it stores the first lets one account's credentials reach another's.

| Field | Scope | Secret | Where it comes from | |---|---|---|---| | App ID | per installation | not secret | From the Meta app dashboard. ONE value for the whole installation. | | App secret (OAuth) | per installation | secret | The same app's client secret, used to exchange the authorization code. | | App secret (proof) | per installation | secret | Keys the appsecret_proof HMAC. It is never sent -- it proves the token rather than accompanying it. For a standard Meta app this is the same value as the OAuth client secret; it is declared separately because they are different ROLES, and an app that rotates one without the other should not silently break the other. | | Page access token | per connected account | secret | PER PAGE, not per user. Obtained by exchanging a user token for a page token; a long-lived one lasts about 60 days and is re-authorised rather than refreshed. |

Authorising

Facebook Pages uses OAuth2 (authorization_code). The package DECLARES the exchange; the HOST performs it — a consent screen needs a browser, a redirect URI and somewhere to persist the result, and all three belong to the host.

• Authorize URL — https://www.facebook.com/v25.0/dialog/oauth
• Token URL — https://graph.facebook.com/v25.0/oauth/access_token
• Scopes — pages_manage_posts, pages_read_engagement, pages_show_list
• Access token lifetime — 5184000 seconds (60 days). A host that never refreshes works all afternoon and is broken by morning.

This flow issues NO refresh token. A connection is RE-AUTHORISED rather than refreshed when the access token expires — checked, not assumed.

The estate

Facebook Pages has no test estate, and somebody checked. Everything this connector does is real. Use the faker to build against it.

Facebook has no sandbox for Pages. Anything this publishes appears on a real Page to real followers, and deleting it afterwards does not un-notify them. Point it at a Page you own and have muted before pointing it at anything else.

What it can do

Actions

post_create — Facebook Page post

Publish a post to a Facebook Page.

POST /{pageId}/feed · unsafe to replay — a retried durable run does it TWICE

| Input | Required | What it is | |---|---|---| | pageId | yes | The numeric Page id. Find it under the Page's About section, or as the id on the /me/accounts response used to obtain the token. | | message | yes | The post text. Required unless a link is given -- and this connector always sends one, so it is required here. | | link | no | A URL to attach. Facebook fetches and renders its own preview, so the title and image come from the page's OpenGraph tags rather than from anything sent here. | | published | no | Turn this off to create the post UNPUBLISHED, visible only to Page admins. Useful for review before it goes out. |

Run it before you have credentials

Every operation ships a faker, whether or not Facebook Pages has a sandbox. Set a node's mode to fake and it returns the shape Facebook Pages actually publishes — the same field names, deterministically — so you can wire the downstream nodes before touching an account, a key, or a network.

This repository is generated

provider/ is the source. Everything under packages/ is emitted from it and must not be hand-edited — CI regenerates and diffs on every push, and the next protocol sync destroys anything it finds. See AGENTS.md.

Two namespaces, which do not match on purpose

The repo is github.com/Fancy-Friends/facebook-pages; the packages publish under particle-academy. Nothing derives one from the other — the names come from weaver's friends.json and nowhere else.

Licence

MIT.