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
340
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
85
NDC London 2017 - Bundling Your front end with webpack
initialspark
0
160
Other Decks in Research
See All in Research
世界の人気アプリ100個を分析して見えたペイウォール設計の心得
akihiro_kokubo
PRO
62
32k
Google Agent Development Kit (ADK) 入門 🚀
mickey_kubo
2
2.1k
引力・斥力を制御可能なランダム部分集合の確率分布
wasyro
0
260
[輪講] SigLIP 2: Multilingual Vision-Language Encoders with Improved Semantic Understanding, Localization, and Dense Features
nk35jk
3
1.2k
日本語・韓国語オノマトペにおける意味的・音韻的類似ペア抽出のための言語埋め込みを用いた分析
shunnosukemotomura
0
100
PhD Defense 2025: Visual Understanding of Human Hands in Interactions
tkhkaeio
1
260
SNLP2025:Can Language Models Reason about Individualistic Human Values and Preferences?
yukizenimoto
0
190
不確実性下における目的と手段の統合的探索に向けた連続腕バンディットの応用 / iot70_gp_rff_mab
monochromegane
2
190
[CV勉強会@関東 CVPR2025] VLM自動運転model S4-Driver
shinkyoto
2
530
VectorLLM: Human-like Extraction of Structured Building Contours via Multimodal LLMs
satai
4
330
Submeter-level land cover mapping of Japan
satai
3
420
論文紹介:Not All Tokens Are What You Need for Pretraining
kosuken
0
200
Featured
See All Featured
Git: the NoSQL Database
bkeepers
PRO
431
66k
Code Reviewing Like a Champion
maltzj
526
40k
Gamification - CAS2011
davidbonilla
81
5.5k
GraphQLの誤解/rethinking-graphql
sonatard
73
11k
Product Roadmaps are Hard
iamctodd
PRO
54
11k
GraphQLとの向き合い方2022年版
quramy
49
14k
Rebuilding a faster, lazier Slack
samanthasiow
84
9.2k
ピンチをチャンスに:未来をつくるプロダクトロードマップ #pmconf2020
aki_iinuma
127
54k
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
194
16k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
34
2.5k
Fight the Zombie Pattern Library - RWD Summit 2016
marcelosomers
234
17k
Mobile First: as difficult as doing things right
swwweet
225
10k
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