Hi,

I try to describe the two types with starting with a scenario:

-I need to retrieve a user's information through an exposed API. The user has several related entities ( Work experience,education,hobbies)

In a normalized API,I have multiple endpoint foreach set of information:

1. /api/user/{:id}
2. /api/user/{:id}/work
3. /api/user/{:id}/education
4. /api/user/{:id}/hobbies

To retrieve all the information the client must execute four different api invoke.

In a denormalized API, i have a single endpoint that assemble all the need information:

1. /api/user/{:id}/detail

To retrieve all the information the must execute one api invoke.

The typical usage for denormalized api is when the client is an enduser layer (web or mobile).

DISCLAIMER : This is a basic example with a basic explaination the "Normalize/Denormalize" topic is bigger than his.

Br,

AL