The data, as files

Every collection the APIs serve is a plain JSON array at https://api.sondahub.com/data/{api}/{collection}.json — the same rows, with the same ids, forever. Fetch them straight, or load them into Sonda's Echo as sample data and serve them yourself.

Generated deterministically at build time from one seed; a new build makes the same rows. manifest.json lists them all.

Store

An online shop: products, customers, orders, reviews and stock.

File	Rows	Size
categories.json	8 rows	2 KB
products.json	2,000 rows	1006 KB
customers.json	800 rows	310 KB
orders.json	3,000 rows	1767 KB
order_items.json	6,219 rows	1381 KB
reviews.json	2,500 rows	784 KB
warehouses.json	3 rows	1 KB
inventory.json	6,000 rows	1252 KB
carts.json	200 rows	100 KB

Fleet

An IoT fleet: sites, devices, telemetry and alerts — the MQTT one.

File	Rows	Size
sites.json	40 rows	14 KB
devices.json	500 rows	214 KB
readings.json	4,908 rows	1058 KB
alerts.json	500 rows	178 KB
commands.json	300 rows	82 KB

Bank

Retail banking: customers, accounts, cards, eight thousand transactions, transfers and FX rates.

File	Rows	Size
customers.json	400 rows	144 KB
accounts.json	640 rows	211 KB
cards.json	505 rows	151 KB
transactions.json	7,674 rows	2962 KB
transfers.json	800 rows	249 KB
fx_rates.json	28 rows	6 KB

Social

A social network: users, posts, comments, likes and follows — the GraphQL one.

File	Rows	Size
users.json	800 rows	334 KB
posts.json	4,000 rows	1543 KB
comments.json	8,000 rows	1534 KB
likes.json	8,000 rows	879 KB
follows.json	5,000 rows	778 KB

Helpdesk

A support desk: tickets, messages, agents, customers, SLAs — the state-machine one.

File	Rows	Size
teams.json	4 rows	1 KB
agents.json	25 rows	6 KB
customers.json	300 rows	86 KB
tickets.json	2,000 rows	1241 KB
messages.json	5,069 rows	1370 KB

Flights

Airports, airlines, two and a half thousand scheduled flights and their bookings — the live-board one.

File	Rows	Size
airports.json	50 rows	11 KB
airlines.json	6 rows	1 KB
flights.json	2,500 rows	1475 KB
bookings.json	3,500 rows	1473 KB