MICROSERVICES

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http://rockalabs.com

xergioalex

Sergio A. Florez

TECH LEAD && FULL STACK DEVELOPER

LET'S BUILD TOGETHER

DIVIDE AND CONQUER

LET'S BUILD TOGETHER

DIVIDE AND CONQUER

LET'S BUILD TOGETHER

Microservice is that it does one thing and it does it very well.

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It’s autonomous: self-contained unit of functionality. A unique location (URL) identifies it.

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It’s isolated, so we can modify it, test it and deploy it without impacting other areas of the solution

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It’s elastic. Can be scaled independently of other services.

Vertical

Escaling

Horizontal

Escaling

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It’s resilient. Is fault tolerant and highly available.

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It’s responsive, it responds to requests in a reasonable amount of time.

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It’s message oriented. Rely on asynchronous message-passing to establish a boundary between components.

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It’s programmable. Thanks to API’s for access by developers and administrators and Applications are composed from multiple microservices.

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It’s automated, the lifecycle of a microservice is managed through automation that includes dev, build, test, staging, production and distribution.

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Are Microservices the silver bullet for all your problems?

NO

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Scalable

PROS

CONS

Network latency increased by the messages interchange.

Reduce deployment costs

Deployment and testing complexity increase exponentially based on the number of interaction between services.

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Can be developed by a small team.

PROS

CONS

Too fine grained microservices may create an overhead that outweighs its utility.

Team only has to be aware of the business logic that represents the service and its interactions.

Message formats, restrictions, and interactions knowledge is needed.

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Continuous deployment.

PROS

CONS

Must pay lot of attention in versioning because of the interaction with older version of other services.

Use the technology you prefer to create it.

Transactional operations that goes through the boundaries of many microservices increase the logic complexity.

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DEMO CODE

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ARE YOU A HIPSTER?

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REST?

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It was created by Facebook in 2012, driven by the mobile team

The beginning

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GraphQL Especificación

(http://facebook.github.io/graphql/October2016/)

Implementación de referencia en js:

https://github.com/graphql/graphql-js

The beginning

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Graphql is query language designed to communicate clients and servers.

A complete alternative to REST.

What is it?

GraphQL is not like SQL.

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Platform agnostic (implemented in 20 languages)

What is it?

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It's just a convention

{REST}

VS

It is a typed language

The server exposes

resources.

The client defines

what receives

Usually send more

information than necessary.

Only what is necessary

is sent

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Multiple requests per

view or custom

{REST}

VS

One request per view

Documentation foreign to development.

Documented by

definition.

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Only one endpoint is required

/graphql

{REST}

VS

Multiples endpoints exposed

/puppies

/puppies/:id

/puppies/update/:id

/puppies/delete/:id

MICROSERVICES

LET'S BUILD TOGETHER

Sergio A. Florez

TECH LEAD && FULL STACK DEVELOPER

LET'S BUILD TOGETHER

DIVIDE AND CONQUER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

DIVIDE AND CONQUER

LET'S BUILD TOGETHER

Microservice is that it does one thing and it does it very well.

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

Are Microservices the silver bullet for all your problems?

NO

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

ARE YOU A HIPSTER?

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

LET'S BUILD TOGETHER

REST?

LET'S BUILD TOGETHER

The beginning

LET'S BUILD TOGETHER

The beginning

LET'S BUILD TOGETHER

What is it?

LET'S BUILD TOGETHER

What is it?

LET'S BUILD TOGETHER

{REST}

VS

LET'S BUILD TOGETHER

{REST}

VS

LET'S BUILD TOGETHER

/graphql

{REST}

VS

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Schema

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Types

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Mutations

Querys

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Resolvers

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Example

SWAPI

Links

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Links

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