Facebook Lead Ads

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

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 Lead Ads 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 Lead Ads 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.

Authorising

Facebook Lead Ads 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 — leads_retrieval, pages_manage_ads, pages_show_list, pages_read_engagement, pages_manage_metadata
• 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 Lead Ads has no test estate, and somebody checked. Everything this connector does is real. Use the faker to build against it.

Facebook Lead Ads has no sandbox. Meta's Lead Ads Testing Tool creates a test lead on the REAL form, which fires the real webhook and appears alongside real leads until somebody deletes it. Anything this reads is real customer data belonging to a real advertiser.

What it can do

Actions

lead_get — Facebook lead

Read one lead's answers by id. Pair this with the leadgen trigger, whose delivery carries only the id.

GET /{leadId} · reads only — safe to replay

Triggers

leadgen — Facebook lead

Start when somebody submits a Facebook lead form. The delivery carries only IDS -- pair this with the lead_get action to read the answers.

Delivered by webhook, and the signature is verified before anything runs.

You have to set this up with the provider first:

In the Meta app dashboard, add a Webhooks product, subscribe to the PAGE object and tick the leadgen field, and point the callback URL at the route your host mounts for this trigger. Meta first sends a GET carrying hub.mode=subscribe, hub.verify_token and hub.challenge -- the host must echo hub.challenge back as the body and check hub.verify_token against the value set in the dashboard, or the subscription is never activated. Then subscribe the app to each Page (POST /{pageId}/subscribed_apps with subscribed_fields=leadgen), which is a SEPARATE step: a webhook configured but not subscribed per Page delivers nothing and reports nothing.

Run it before you have credentials

Every operation ships a faker, whether or not Facebook Lead Ads has a sandbox. Set a node's mode to fake and it returns the shape Facebook Lead Ads 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-lead-ads; 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.