Square
Square 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/square-ui |
npm install @particle-academy/square-ui |
| Node | @particle-academy/square-js |
npm install @particle-academy/square-js |
| PHP 8.4+ | particle-academy/square-php |
composer require particle-academy/square-php |
| Python 3.11+ | fancy-square |
pip install fancy-square |
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 Square 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 Square connection holds 1 value.
Every value here is account scope: one per connected account, not one per installation.
| Field | Scope | Secret | Where it comes from |
|---|---|---|---|
| Access token | per connected account | secret | From the Square developer dashboard. SANDBOX and PRODUCTION tokens are different values for different hosts -- a sandbox token is refused by the production host rather than accepted, which is the whole reason this provider's estates cannot be confused. |
The estate
Square has a separate test host. Selecting sandbox mode changes the base URL.
The one sandbox kind that is genuinely a DIFFERENT PLACE. Stripe's estate is chosen by the key, Telegram's and HubSpot's by the account, SES's not at all -- Square's is another host, with its own data and its own credentials. A sandbox access token sent to the production host is refused rather than silently reaching the real ledger, which makes this the SAFEST of the four kinds and worth saying so: the failure mode is a 401, not a charge.
What it can do
Actions
payment_create — Take payment
Take a payment through Square.
POST /v2/payments · unsafe to replay — a retried durable run does it TWICE
| Input | Required | What it is |
|---|---|---|
sourceId |
yes | A payment token from the Web Payments SDK, a saved card id, or CASH / EXTERNAL. Square calls it source_id. |
amount |
yes | In the currency's smallest unit — 1000 is $10.00. Square has no decimal amounts, exactly like Stripe. |
currency |
no | Three-letter ISO code. Square wants it UPPERCASE, where Stripe wants it lowercase — the same field, opposite conventions. |
locationId |
no | Which of the seller's locations the payment belongs to. Square scopes almost everything by location. |
customerId |
no | Customer |
referenceId |
no | Your own id for this payment. The usual way to find it again later. |
note |
no | Note |
Run it before you have credentials
Every operation ships a faker, whether or not Square has a sandbox. Set a
node's mode to fake and it returns the shape Square 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/square; 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.
1 maintainer
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