CONSOLIDATING SERVICES WITH MIDDLEWARE

CHRISTIAN HORSDAL

HORSDAL CONSULT

@CHR_HORSDAL

Flexible

Componentized

Reusable

Testable

STUFF FROM THE REAL WORLD

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MICROSERVICES

WHY MICROSERVICES?

• ENABLES CONTINUOUS DELIVERY

• HIGHLY MAINTAINABLE SERVICES

• EFFICIENT DEVELOPER WORKFLOW

• ROBUST BY DESIGN

• FLEXIBLE SCALABILITY

ALL HTTP

Listing Store

Dealer App

Partner site

VerticalClassifieds

site

Classifieds site

Vertical Listing store

Search index

Search index

ALL HTTP

WHEN CAN YOU USE MICROSERVICE?

AUTOMATED DEPLOYS

FAST PROVISIONING

AUTOMATED BUILDS

AUTOMATED TESTS

LOGGING AND MONITORING

CLOSE DEV-OPS RELATIONSHIP

WEB APIS AND MIDDLEWARE

WEB APIS HANDLE HTTP REQUESTS

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ASP.NET CORE: PIPELINE

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Kestrel Application

ASP.NET CORE: PIPELINE

• USE PIPES AND FILTERS

• A CONTEXT IS PIPED THROUGH MIDDLEWARE

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ASP.NET CORE: PIPELINE

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KestrelThrottling

Middleware

OAuth

MiddlewareApplication

MIDDLEWARE

• MIDDLEWARE TRANSFORMS THE REQUEST AND RESPONSE

• TAKES A CONTEXT IN

• CAN CALL NEXT STEP IN PIPELINE

• OR NOT

• UNIFORM INTERFACE

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THINGS YOU MIGHT DO IN THE PIPELINE

• OPEN & DISPOSE RESOURCES

• LOGGING

• AUTHENTICATION

• AUTHORIZATION

• QUICK MONITORING ENDPOINTS

• SANITIZE INPUTS

• CONTENT NEGOTIATION

• CORS

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THINGS YOU MIGHT DO IN THE PIPELINE

• OPEN & DISPOSE RESOURCES

• LOGGING

• AUTHENTICATION

• AUTHORIZATION

• QUICK MONITORING ENDPOINTS

• SANITIZE INPUTS

• CONTENT NEGOTIATION

• CORS

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Cross-cutting concerns

Re-use

Test separately

Update separately

Distribute separately

A MICROSERVICE PLATFORM

Kestrel

Correlation Id

Request

Logging

Performance

Logging

Monitoring

endpoints

Authentication

Application

CODE

Flexible

Componentized

Reusable

Testable

ABOUT ME

Christian HorsdalIndependent Consultant

www.horsdal-consult.dk

c.horsdal@gmail.com

@chr_horsdal