Prodaxis Print Quote

This plugin authenticates against the Atom API gateway with a per-company API key
and exposes the [prodaxis_print_quote] shortcode, which lets a visitor upload an
STL model, choose a material, color and template, and get an estimated print
price, time and filament length.

Because the gateway derives the company from the API key, one WordPress site
quotes against exactly one company’s print options: whichever key you configure
under Settings -> Print Quote.

How it works

1. Every request to the gateway is sent server-side with an X-API-Key header
   carrying the configured key. The gateway resolves the key to its company and
   scopes the response accordingly.
2. It calls GET /print/options to read the company’s materials, colors and
   templates.
3. The result is cached (configurable lifetime) and used to populate the quote
   tool’s material, color and template controls.

The API key never reaches the browser — all requests happen on the WordPress
server.

External service

This plugin is an interface to the Prodaxis (Atom) API gateway, a third-party
service that holds your company’s 3D-print materials and performs the price
calculations. The plugin has no use without access to that service, and no data
is sent anywhere until you configure the gateway URL and an API key under
Settings -> Print Quote.

Once configured, when a visitor requests a quote the plugin sends the following
to the gateway URL you configured, server-side (never from the visitor’s
browser):

• the uploaded STL model,
• the selected material, color and template,
• your company API key, as the X-API-Key request header.

The gateway returns the estimated price, print time and filament length. The
uploaded model and selections are transmitted to your configured gateway solely
to produce the quote.

• Service provider: Prodaxis — https://prodaxis.io/
• Terms of Service: https://www.prodaxis.io/legal/terms
• Privacy Policy: https://www.prodaxis.io/legal/privacy

Shortcode

[prodaxis_print_quote]

Renders an interactive quote tool. A visitor:

1. Uploads an STL model.
2. Picks a material, then a color and template available for that material
   (the dropdowns are built from the same /print/options catalog).
3. Clicks “Calculate price” to get an estimated price, print time and filament
   length.

The browser never talks to the gateway directly. The file and selections are
sent to WordPress (admin-ajax), which proxies them server-side using the same
cached service-account token:

• POST /slicer/upload – uploads the STL and returns its print reference.
• POST /print/calculate/async – starts the calculation and returns immediately
  with a calculationId (status IN_PROGRESS); slicing runs in the background.
• GET /calculation/{id} – polled until the status becomes COMPLETED (with
  the price, print time and filament length) or FAILED.

Because slicing is asynchronous, the widget shows a “calculating” state and
polls every couple of seconds, giving up after about three minutes.

Changing the material and recalculating reuses the already-uploaded file;
choosing a different file re-uploads. Requests are protected with a WordPress
nonce.

Optional attributes:

• accent – hex accent color for the widget (default #1976d2)
• template_style – cards (default) or compact template selector
• powered_by – brand shown in the footer line; omitted hides it

Example: [prodaxis_print_quote accent="#0f9d6b" template_style="compact"]

Notes

• The WordPress server must be able to reach the API gateway URL. localhost
  works only when WordPress runs on the same machine as the gateway; inside a
  Docker container use http://host.docker.internal:8086 instead, since
  localhost there points at the container, not the host.
• The API key is stored in the WordPress options table and sent as the
  X-API-Key header. It is scoped to one company and limited to the print
  read/quote operations the widget needs; if it leaks, regenerate it in the
  company dashboard (which immediately invalidates the old one).
• STL upload size is bounded by two limits: PHP’s upload_max_filesize /
  post_max_size on the WordPress server (raise these for large models) and the
  gateway’s authoritative per-company limit, which is enforced server-side.

Third-party libraries

The print-quote widget’s 3D preview is powered by Three.js (r185 / 0.185.0),
bundled locally under assets/js/vendor/ so the widget needs no external
requests:

• three.module.min.js, STLLoader.js, OrbitControls.js — Three.js r185, MIT
  license, Copyright Three.js Authors.
  Source: https://github.com/mrdoob/three.js/tree/r185

These are loaded as ES modules: the viewer script imports the bundled build and
its STLLoader / OrbitControls addons directly. The MIT license is
GPL-compatible. No other external scripts or services are loaded in the browser.