The FastAPI example

A whole shop on FastAPI, in the package examples/fastapi: sign in as Ann (support), Ben (a customer) or Cara (the warehouse), each in a browser of their own, and try everything this guide covers.

On the page	What makes it
The order of Ben follows as Ann moves it on, and Ben alone gets a notice	the order:{id} room, sent to by POST /orders/{pk}/status with aemit() and except_tab, and to_user (sending)
The chat of Ann and Ben, with typing, reactions and read ticks	<wordplus-chat> on the chat:{a}:{b} room, which lets pages send them. The server keeps the conversation from the webhook and gives it back from GET /chat/messages (keeping the conversation). The name and picture of the other side above it from the directory
Who is in the shop, with a call button for each	<wordplus-online> on the shop presence room, the name and role of each member
The daily meeting	<wordplus-room>, a group call
The order timeline, and what the cloud carried of it	the order room history. GET /orders/{pk}/wire seals the update as the server sends it, with the room key (encryption)
How many are looking at the mugs	the product:{id} room, public and counted
The webhooks the server got	realtime.on("*", …), which sends each on to the shop webhooks room (webhooks)

Try it online at fastapi.docs.wordplus.cloud: this example as a demo, where every visitor gets a shop of their own for a day, and its links open Ben and Cara in windows of their own. Its calls end after 10 minutes and its meetings after 15 (limits in the demo part, which the page keeps to).

Run it

cd examples/fastapi
cp .env.example .env              # the key and secret of your app, with http://localhost:8000 among its addresses, and a local key
python -m venv .venv && .venv/bin/pip install -r requirements.txt
npm install                       # bundles the page, and copies the worker, the room client and the components into static/
.venv/bin/uvicorn app:app --port 8000

Open it in two browsers (or a private window), sign in as Ann in one and Ben in the other, and move the order on, chat, and call.

Its files

File
app.py	the realtime server part and its router, the rooms and calls it declares, sessions, signing in, the order route, and the page
templates/page.html	the page, with the settings and the shop data through tojson
demo.py	the demo part alone (WORDPLUS_DEMO=1), the same file in the three Python examples: a shop for each visitor, its windows, and the frame around the page
shop/shop.js	the page script: connect(), the order, the product, the chat, who is in the shop, the webhooks, the meeting and the call screen. The same file runs the shop in every example