INTERFACE by apidays_GrapqhQL for cities by Roy Derks

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INTERFACE by apidays GrapqhQL for cities Roy Derks, Senior Software Developer of the City of Amsterdam

Technologie

GraphQL for Cities
(And other public organizations)
APIDAYS INTERFACE 2020

A little bit about
myself ﬁrst…
@gethackteam

@gethackteam
- Since 1275
- Population: 860,000

@gethackteam
In 2017, approximately 60,000 people
were employed by more than 1,000
technology companies in Amsterdam,
representing 11% of the total
Amsterdam labour market.

@gethackteam
Even at our local
government

@gethackteam
We’re developing projects for
civil servants, researchers,
and civilians

@gethackteam
Or based on problems the city
is facing

@gethackteam
But also technology 👨💻
We have over 35 public APIs

Why?
@gethackteam
Collaboration
Transparency

Why?
@gethackteam
Collaboration
Reusability
Transparency

Why?
@gethackteam
Find out more at https://amsterdam.github.io
Collaboration
Reusability
Transparency

@gethackteam
Also, we follow European
guidelines for open standards

@gethackteam
Portal that combines (almost)
all open data of the city

@gethackteam
But how to build applications
around public APIs?

@gethackteam
GraphQL is all about graphs

@gethackteam
Public APIs can be wrapped to
represent a graph

A data access layer (DAL) in computer
software is a layer of a computer
program which provides simplified access
to data stored in persistent storage of
some kind.
- the internet
@gethackteam

@gethackteam
API B
A
P
I
Services
API A
A
P
I
Databases

@gethackteam
D
A
T
A
L
A
Y
E
R
API B
A
P
I
Services
API A
A
P
I
Databases

@gethackteam
This way we can tailor public
APIs to user needs

@gethackteam
Can’t this be done without
GraphQL?

Want to learn more?
Search: Roy Derks@gethackteam
https://amsterdam.github.io
https://github.com/amsterdam
https://npmjs.com/org/datapunt

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