Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Real-time API's with GraphQL
Search
Sandeep Singh
October 14, 2018
Research
1
330
Real-time API's with GraphQL
Sandeep Singh
October 14, 2018
Tweet
Share
More Decks by Sandeep Singh
See All by Sandeep Singh
NDC OSLO 2017
initialspark
1
180
DDD 12 - Goodbye REST; Hello GraphQL
initialspark
0
1.2k
DDDSouthwest - JavascriptServices: Building Single Page Applications with ASP.NET Core
initialspark
0
84
NDC London 2017 - Bundling Your front end with webpack
initialspark
0
150
Other Decks in Research
See All in Research
研究テーマのデザインと研究遂行の方法論
hisashiishihara
5
1.5k
近似動的計画入門
mickey_kubo
4
990
GeoCLIP: Clip-Inspired Alignment between Locations and Images for Effective Worldwide Geo-localization
satai
3
250
2025年度人工知能学会全国大会チュートリアル講演「深層基盤モデルの数理」
taiji_suzuki
24
16k
Pix2Poly: A Sequence Prediction Method for End-to-end Polygonal Building Footprint Extraction from Remote Sensing Imagery
satai
3
500
定性データ、どう活かす? 〜定性データのための分析基盤、はじめました〜 / How to utilize qualitative data? ~We have launched an analysis platform for qualitative data~
kaminashi
7
1.1k
Self-supervised audiovisual representation learning for remote sensing data
satai
3
230
[CV勉強会@関東 CVPR2025] VLM自動運転model S4-Driver
shinkyoto
2
320
Principled AI ~深層学習時代における課題解決の方法論~
taniai
3
1.2k
ノンパラメトリック分布表現を用いた位置尤度場周辺化によるRTK-GNSSの整数アンビギュイティ推定
aoki_nosse
0
330
Ad-DS Paper Circle #1
ykaneko1992
0
5.6k
【緊急警告】日本の未来設計図 ~沈没か、再生か。国民と断行するラストチャンス~
yuutakasan
0
140
Featured
See All Featured
CSS Pre-Processors: Stylus, Less & Sass
bermonpainter
357
30k
The Language of Interfaces
destraynor
158
25k
The Pragmatic Product Professional
lauravandoore
35
6.7k
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
48
2.9k
The Art of Delivering Value - GDevCon NA Keynote
reverentgeek
15
1.6k
Six Lessons from altMBA
skipperchong
28
3.9k
Typedesign – Prime Four
hannesfritz
42
2.7k
jQuery: Nuts, Bolts and Bling
dougneiner
63
7.8k
Building Adaptive Systems
keathley
43
2.7k
Bootstrapping a Software Product
garrettdimon
PRO
307
110k
Done Done
chrislema
184
16k
Evolution of real-time – Irina Nazarova, EuRuKo, 2024
irinanazarova
8
830
Transcript
Real-Time API’s with GraphQL Sandeep Singh initialspark.co.uk @initial_spark
◦ What is GraphQL ? ◦ Why it exists and
the problems it aims to solve ? ◦ GraphQL core concepts ◦ Real-Time API’s – the what, why and how Agenda @initial_spark
GraphQL is a declarative query language for your API @initial_spark
@initial_spark
◦Built on specification ◦Hierarchical ◦Client‐driven ◦Strongly typed What is GraphQL?
@initial_spark
Q: Why GraphQL? @initial_spark
◦Efficiency ◦Predictability ◦Versioning ◦Caching ◦Security, tooling, documentation and more Modern
API considerations @initial_spark
Let’s look at an example… @initial_spark
@initial_spark
Efficiency @initial_spark
Efficiency @initial_spark GraphQL API Mongo DB AWS Lamba REST API
SOAP Service HTTP TCP/IP HTTP SOAP Optimisted data for each channel
Versioning Evolution @initial_spark
Tooling & DX @initial_spark
Introspection { __schema{ types{ name } } } • Query
schema, types and fields • Build tools o Auto complete / Validate (graphiql) o Code generation o Documentation @initial_spark
GraphQL Core Concepts @initial_spark
Schema Type System Query Language GraphQL Core Concepts @initial_spark
GraphQL Core Concepts - Resolvers @initial_spark
Schema Type System Query Language o Operations • Queries –
read • Mutations – write • Subscriptions – real-time o Alias o Fragments GraphQL Core Concepts @initial_spark
Lets build a GraphQL API! @initial_spark
@initial_spark
◦ Unpredictable Execution ◦ Handling File Upload ◦ Cache at
Network Level ◦ Authentication/Authorisation GraphQL - Challenges @initial_spark
Q:What about Real-time data? @initial_spark
@initial_spark Chat Notifications Live feed Collaborative
◦ Pull ◦ Polling - Short/Long - HTTP ◦ Push
◦ Subscriptions - Event driven ◦ Live queries - Infinitely fast/cheap polling (State driven) Real-Time API’s @initial_spark
◦ Real time events ◦ Idea: Server pushes data to
client when something ‘interesting’ occurs ◦ The client defines the shape of the data pushed to it Subscriptions – Event Based @initial_spark
◦ The initial state is large, but the incremental change
sets are small ◦ You care about low-latency updates in the case of specific events, e.g. chat application where users expect to receive new messages in a matter of seconds Subscriptions – When to use @initial_spark
Subscriptions Implementation @initial_spark
Subscriptions (Redis, Kafka, MQ, own?) @initial_spark Request / Response Bi-Directional
Transport (SSE, websockets etc) HTTP Subscription(s) GraphQL Domain Events Events
@initial_spark
Let’s look at another example… @initial_spark
@initial_spark GraphQL API Run Mutation Trigger Subscription subscription {patientDischarged{…}} PAS
View (Admin) Ward View (Nurse)
Lets have some fun with subscriptions @initial_spark
Advanced features – Enrich payload @initial_spark
@initial_spark There isn’t such thing as a free lunch…
◦ Scaling state is hard ◦ Who’s subscribed/ how do
we send messages etc ◦ QOS ◦ Throttling ◦ Buffering Subscriptions - Challenges @initial_spark
◦ http://graphql.org/learn/ ◦ https://www.youtube.com/watch?v=bn8qsi8jVew - Lee Byron ◦ https://github.com/apollographql/apollo-client ◦
https://github.com/initialspark/real-time-apis-graphql ◦ https://www.graphqlhub.com/ ◦ https://www.youtube.com/watch?v=4_Bcw7BULC8 - Authentication Resources @initial_spark
Thank you ! You can find me at @initial_spark &
initialspark.co.uk