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Microservices: What, Why, When and HowAndrej Koelewijn // Product Manager // MendixWill Ma // Director Solutions Architecture // MendixRom van Arendonk // Architect // Timeseries

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Agenda

• Why microservices• How do you use microservices• Case study: Enexis Aansluitingen• Remote Entities & Data Hub

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What starts with architecture…

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Often ends in spaghetti chaos…

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Usually due to necessary shortcuts…

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Increasing cost of change…

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Almost impossible to repair…

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How do you to ensure long term agile architecture?

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Start with productized components…

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Add small autonomous teams…

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Not building architecture…

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But city planning…

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Teams/components

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Releases

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Independent Components

Standardized Interfaces

Independent Roadmap

Autonomous Teams

Independent Solution Architecture

REST APIs

Project Team

Sprint backlog

Independent App including database

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Scale Development… And Infrastructure

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Manage shop

products

Contractconfirmation

Declare Expense

s

Validate expense

declarationReimburseShop

WebshopProduct

Management tool

Contract confirmation

AppExpenses App

SmartExpenses Rules App

Reimbursement

App

CRM FinanceProducts

Design thinking to determine components

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Microservices @

Enexis• Grid operator

• Provides infrastructure for gas and electricity

• Process Redesign

• Case Management system to manage infrastructure projects

• Transitional architecture

• Time-to-market

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Intake Engineering Project preparation

Execute project Finalize

Customer Engineer Engineer Contractors Engineers

RiskIntake Estimation Materials PaymentPlanning

Internal view

External view

SAP GIS DWH

Projects Activities Organization Migration

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Results

• 12 Devs, 9 business product owners

• 3 months to deliver MVP

• Decentralized ownership led to best possible applications

• Small, clean apps which are easy to adapt and extend

• Independent scaling proved valuable

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REST = HTTP• Polling sync based on change

date

• Custom change date to enable aggregates

• Automatic swagger contracts + example data• Developers• API Gateway

• Understand how to build REST• Resource first• Verbs

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Versioning• Versioning facilities in Mx

• Cross team orchestration

• Only consume production APIs

• N-2 API versions in production

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Summary

• Basics for building microservices with Mendix are good

• Hardest parts:

• Building the technical integration using rest or webservices

• Knowing what is available for reuse

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Simplifying data sharing

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No-code Integration

Out-of-the-box integration patterns -drag and drop data into your app andretrieve remote data like local data in widgets and microflows.

Anybody can use Enterprise Data

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No-code Integration Discoverable enterprise

Out-of-the-box integration patterns -drag and drop data into your app andretrieve remote data like local data in widgets and microflows.

Find any enterprise data you need fromthe comfort of the Mendix Studio Pro

Anybody can use Enterprise Data

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No-code Integration Discoverable enterprise Up-to-date catalog

Out-of-the-box integration patterns -drag and drop data into your app andretrieve remote data like local data in widgets and microflows.

Find any enterprise data you need fromthe comfort of the Mendix Studio Pro

All published and consumed API automatically registered in the Mendix Data Hub

Anybody can use Enterprise Data

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Enterprise Hub Mendix Studios

Environments Services

Data Events

APIs Deeplinks

Discover

Discoverable Enterprise

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Enterprise Hub

Enterprise deployment environments

Mendix

Deployed AppDeployed App

Mendix Studios

Deployed App

Data Events APIs Links

Environments Services

Data Events

APIs Deeplinks

Discover

Deploy

Discoverable Enterprise

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Enterprise Hub

Enterprise deployment environments

Mendix

Deployed AppDeployed App

Mendix Studios

Deployed App

Data Events APIs Links

Environments Services

Data Events

APIs Deeplinks

Discover

Deploy

Reg

iste

r

Discoverable Enterprise

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Enterprise Hub

Enterprise deployment environments

Mendix

Deployed AppDeployed App

Mendix Studios

Deployed App

Data Events APIs Links

Environments Services

Data Events

APIs Deeplinks

Discover

Deploy

Reg

iste

r

Curate

Discoverable Enterprise

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Remote entities

• Retrieve remote data with xpath

• Uses REST/OData

• No need for integration microflows

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Link app and remote data• Remote data is read only

• App data can be linked to remote data using associations

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How do you use it?

Publish data APIs using

ODataDeploy your

appConnect anduse your data

Findenterprise

data

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Consuming App Publishing App

How does it work?

Xpath

OData retrieve

Xpath

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Target use cases

Show remote data

Fastest way to buildpages on data in other apps, just dragand drop remote objects on widgets and pages.

Enrich data

Workflow apps caneasily associateremote data withlocal data to store enrichments

Microservices

Build autonomousmicro-services usingcacheable remote objects

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Why is it awesome?

Searching, paging and sorting out of the boxSupported in microflow retrieve

activities

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Demo time

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No-code Integration Discoverable enterprise Up-to-date catalog

Out-of-the-box integration patterns -drag and drop data into your app andretrieve remote data like local data in widgets and microflows.

Find any enterprise data you need fromthe comfort of the Mendix Studio Pro

All published and consumed API automatically registered in the Mendix Data Hub

Anybody can use Enterprise Data

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Q&A