Data flow - Format
JSON
(JavaScript Object Notation)
A simple text format used to organise and exchange data between systems
What's it for?
Gives programs a simple text format for exchanging organised information.
For example…
An API replies with `{"name": "Alex", "role": "analyst"}` so another system can store those fields without guessing the layout.
An API returns `{"customerId":123,"status":"active"}` as JSON so another application can read the values reliably
Think of it like…
Standardised packing slip inside a parcel: both sender and receiver know where to look for each field