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
Building reliable APIs
Search
mattheath
July 10, 2018
Programming
0
330
Building reliable APIs
mattheath
July 10, 2018
Tweet
Share
More Decks by mattheath
See All by mattheath
Breaking down problems
mattheath
2
380
Contexts in Context
mattheath
0
230
A guided journey of Cloud Native
mattheath
1
180
Modelling prototypes to critical systems with Cassandra
mattheath
0
270
Building a Cloud Native Bank
mattheath
1
240
Building a Cloud Native Bank
mattheath
0
390
Go and Microservices - NDC London 2018
mattheath
0
280
Architecting a Bank from scratch
mattheath
1
840
Kubernetes in Context
mattheath
0
270
Other Decks in Programming
See All in Programming
ファインチューニングせずメインコンペを解く方法
pokutuna
0
210
Laravel Nightwatchの裏側 - Laravel公式Observabilityツールを支える設計と実装
avosalmon
1
260
生成 AI 時代のスナップショットテストってやつを見せてあげますよ(α版)
ojun9
0
310
我々はなぜ「層」を分けるのか〜「関心の分離」と「抽象化」で手に入れる変更に強いシンプルな設計〜 #phperkaigi / PHPerKaigi 2026
shogogg
2
660
それはエンジニアリングの糧である:AI開発のためにAIのOSSを開発する現場より / It serves as fuel for engineering: insights from the field of developing open-source AI for AI development.
nrslib
1
620
Angular-Apps smarter machen mit Gen AI: Lokal und offlinefähig - Hands-on Workshop!
christianliebel
PRO
0
140
ネイティブアプリとWebフロントエンドのAPI通信ラッパーにおける共通化の勘所
suguruooki
0
210
2026-03-27 #terminalnight 変数展開とコマンド展開でターミナル作業をスマートにする方法
masasuzu
0
220
AI Assistants for Your Angular Solutions
manfredsteyer
PRO
0
160
ポーリング処理廃止によるイベント駆動アーキテクチャへの移行
seitarof
3
1.3k
「接続」—パフォーマンスチューニングの最後の一手 〜点と点を結ぶ、その一瞬のために〜
kentaroutakeda
4
2.1k
AIコードレビューの導入・運用と AI駆動開発における「AI4QA」の取り組みについて
hagevvashi
0
570
Featured
See All Featured
How To Speak Unicorn (iThemes Webinar)
marktimemedia
1
420
jQuery: Nuts, Bolts and Bling
dougneiner
66
8.4k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
32
2.8k
Prompt Engineering for Job Search
mfonobong
0
240
A brief & incomplete history of UX Design for the World Wide Web: 1989–2019
jct
1
330
Building an army of robots
kneath
306
46k
Paper Plane (Part 1)
katiecoart
PRO
0
6.1k
Joys of Absence: A Defence of Solitary Play
codingconduct
1
330
[Rails World 2023 - Day 1 Closing Keynote] - The Magic of Rails
eileencodes
38
2.8k
Java REST API Framework Comparison - PWX 2021
mraible
34
9.2k
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
68
38k
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
12
1.5k
Transcript
Building Reliable APIs Matt Heath, Monzo
Matt Heath, Monzo @mattheath
None
None
monoliths traditional dev
None
What do we mean by “reliable”?
None
Contacting us Using your debit card Making payments Freezing your
card Viewing your balance Viewing recent transactions Sending emoji reactions Setting your profile picture Viewing merchant logos
Contacting us Using your debit card Making payments Freezing your
card Viewing your balance Viewing recent transactions Sending emoji reactions Setting your profile picture Viewing merchant logos
?
Application
Application
APPLICATION Application
None
None
?
None
API
API
API Gateway API Service API Service API Service API Service
API Service API Service API Service API Service
None
None
None
API Gateway Accounts Cards Pots Emojis Payments …
API Gateway Accounts Cards Pots Emojis Payments … New Exciting
API!!
Cards Pots Emojis Payments … API Gateway Accounts New Exciting
API!!
Cards Pots Emojis Payments … API Gateway Accounts New Exciting
API!!
API Gateway Accounts Cards Pots Emojis Payments … New Exciting
API!!
None
pod
pod container container container
pod API service
pod
pod
pods replica set
replica set pods deployment
pods replica set deployment
pods replica set deployment change
deployment change old pods old replica set
deployment change old pods old replica set new replica set
deployment change old pods old replica set new replica set
new pod
deployment change old pods old replica set new replica set
new pod
deployment change old replica set new pods new replica set
deployment change new replica set new pods
deployment replica set pods
pods
pods service
pods service kubedns
pods service routing - static cluster IP managed replicas resource
allocations rollout strategies liveness checks anti-affinity, etc kubedns routing - “service name”
?
machine
machine machine
machine machine machine machine machine machine
machine machine machine machine machine machine Kubernetes
machine machine machine machine machine kubelet
kubelet kubelet kubelet kubelet kubelet kubelet
kubelet kubelet kubelet kubelet kubelet kubelet Kubernetes Master
kubelet kubelet kubelet kubelet kubelet kubelet Kubernetes Master etcd
kubernetes
kubernetes service service service service service service service service service
service
kubernetes service service service service service service service service service
service
kubernetes service service service service service service service service service
service
kubernetes service service service service service service service service service
service
kubernetes service service service service service service service service service
service service service service
kubernetes service service service service service service service service service
service
Reliable inter-service communication
Service Service
Service Service Service Service
Service Service Service Service Kubernetes Service
Service Discovery Load Balancing Timeouts and Expirations Retries Rate Limiting
Connection Pooling Circuit Breaking Failure Detection Metrics and Tracing Interrupts Context Propagation
Service Discovery Load Balancing Timeouts and Expirations Retries Rate Limiting
Connection Pooling Circuit Breaking Failure Detection Metrics and Tracing Interrupts Context Propagation
Service Service Service Service ?
Service Service Service Service linkerd
Service linkerd
Service linkerd service discovery
Service Service Service Service linkerd service discovery
Service Service Service Service linkerd
Service Service Service Service linkerd
Service Service Service Service linkerd
Service Service Service Service linkerd
Event Driven Architecture
Service A Service B Load Balancer Edge Gateway API Service
API Service Service A Service B Load Balancer Edge Gateway
API Service Service A Service B Load Balancer Edge Gateway
Service D Service E
API Service Service A Service B Load Balancer Edge Gateway
Service C Service D Service E
API Service Service A Service B Load Balancer Edge Gateway
Service C Service D Service E
API Service Service A Service B Load Balancer Edge Gateway
Service C Service D Service E
API Service Service A Service B Load Balancer Edge Gateway
Service C Service D Service E
API Service Service A Service B Load Balancer Edge Gateway
Service C Service D Service E Service D
API Service Service A Service B Load Balancer Edge Gateway
Service C Service D Service E Service D
API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed
apns API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns
API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed
apns API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns
API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed
apns API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns
API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed
apns API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns
API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed
apns API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns
API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed
apns API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns
None
API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed
apns API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns
None
Critical Path
How do we make systems reliable?
Masterless systems No single points of failure Simple / small
components Minimise critical path Queue deferrable tasks Automated failure correction
None
None
None