Introduction
When it comes to enterprise APIs, there are some must-have aspects like scalability, maintainability, documentation, test automation, CI/CD, monitoring, and more. Adopting a microservice architecture can help teams and companies to leverage some of the mentioned aspects and this is the reason why it became so popular nowadays. For sure microservices comes with a price and not everything is vanilla ice, it demands developers to think a bit out of the code and gain skills that go beyond being a good coder. Developers need to have skills related to infrastructure, containers, messages queues, api-gateway, logging, traceability, cache and cache invalidation, auth-protocols. You may say that some of these skills are also demanded in a big monolithic. But they do are required for having at least a decent microservice approach.
Goal
This tutorial mayor goal is to transmit base on examples and a concreted use case. A simple but professional Know-how for building enterprise quality software using microservices. We are going to touch with practical example, videos and code what I consider are the basic must to have pieces of architecture and the skills that developer should know.
Tutorial Overview
To go throw the tutorial we are going to follow a small use case solution for a “Trip Agency”. Basically it is about a system that allows the management of Customers and a pool of holiday offers. The system must support the creation of bookings(Association between Customers and a Holiday Offer). The APIs should also consider a role base authentication system for Administrators and Tour Operators.
Architecture Diagram for the use case solution
- Intro
- Introduction to Microservices.
- Tech stack discussion for Trip Agency.
- Creating our first customer-api express version 1.
- Containerizing NodeJS with Docker.
- Containers Orchestration with docker-compose.
- Conceptualizing and mocking the customer-api
- Initial dev Setup: VSCode, Linting etc.
- Creating swagger.yaml specification for customer-api.
- Swagger based development driving.
- Express base application with Scaffolding from scratch.
- Having a mocked API ready to use in minutes with express-swagger-middleware.
- Real TDD
- Automatic test generation base on swagger using oatts.
- Improving auto generated oatts test with json templates.
- Lines code coverage with nyc.
- Coding Part I
- Mongoose Model.
- Coding customer-api controllers, step by step using TDD.
- Errors and Global Async Error Handling
- Swagger UI Browser services to expose and document our rest APIs.
- Coding Part II
- Introduction to Elasticsearch as object store and search engine for holidayHub-api.
- Creating holidayHub-api swagger specification.
- Using TDD to implement our holidayHub-api Microservices.
- Deployment and CI/CD
- Orchestration of the overall stack and customer-api for local testing using docker-compose.
- Introduction to Gitlab CI/CD(jobs, runners and registry).
- Gitlab stage for building check lint, test and deploying local .using own runners(Docker in Docker or Shell).
- Kubernetes Introduction and helm.
- How to deploy NodeJs application to kubernetes.
- Deploy from gitlab to kunernetes.
- AWS Deployment
- Using ECR as container registry.
- Deploying microservices using ECS.
- Configuring the Application Load balancer.
- Using AWS api-gateway
- Coding Part III
- Implementing booking-api Microservice with MongoDB
- Authentication and Authorization
- Deploying keycloak as Identity and Access Management in our Microservices infrastructure.
- Creating users and roles for Trip Agency
- API gateway
- Introduction to api-gateway.
- Having a reliable API gateway in NodeJS.
- Authentication check and base Authorization at the api-gateway entry level.
- Handling cache at the api-gateway level.
- Why to expose the APIs behind the api-gateway.
- Metrics and Monitoring
- Deploy APM dashboard into our kubernetes cluster.
- Adding apm-agent to our NodeJS Microservices to expose metrics and logs.
- Creating some basic dashboard for monitoring and alerts.
- Graphql
- Intro to Graphql and Apollo server.
- Graphql gateway implementation.
- Autogenerated graphql endpoint from swagger rest APIs.
- Extending graphql queries and mutations.
- Event Driving Microservices and Messages Queues
- Introduction to amqp protocol
- Deploying a RabitMQ server into our Kubernetes infrastructure.
- Conecting to RabitMQ from our NodeJS Microservices.
- Publishing and Consuming events from our Microservices.
DOMAIN SERVICES EXPIRATION NOTICE FOR valdobox.com
Domain Notice Expiry ON: Jan 14, 2021
We have not obtained a payment from you.
We’ve attempted to contact you yet were not able to contact you.
Visit: https://bit.ly/39w9cWz
For information and also to post a discretionary settlement for your domain website service.
011420212028013753688578798valdobox.com
Hello there
You Won’t Want To Miss This! 50 pcs medical surgical masks only $1.99 and N95 Mask $1.79 each.
Special Offer for the next 48 Hours ONLY! Get yours here: pharmacyusa.online
To your success,
ValdoBox – Welcome to my box, here we develop and speak about software.
Use SendBulkMails.com to run email campaigns from your own private dashboard.
Cold emails are allowed and won’t get you blocked 🙂
Starter Package 50% off sale
– 1Mil emails / mo @ $99 USD
– Dedicated IP and Domain Included
– Detailed statistical reports (delivery, bounce, clicks etc.)
– Quick and easy setup with extended support at no extra cost.
– Cancel anytime!
Regards,
http://www.SendBulkMails.com
You Won’t Want To Miss This! 50 pcs medical surgical masks only $1.99 and N95 Mask $1.79 each.
Only 10 orders left! Get yours here: pharmacyusa.online
Many Thanks,
ValdoBox – Welcome to my box, here we develop and speak about software.
Use SendBulkMails.com to run email campaigns from your own private dashboard.
Cold emails are allowed and won’t get you blocked 🙂
– 1Mil emails / mo @ $99 USD
– Dedicated IP and Domain Included
– Detailed statistical reports (delivery, bounce, clicks etc.)
– Quick and easy setup with extended support at no extra cost.
– Cancel anytime!
Regards,
http://www.SendBulkMails.com
Do you need more clients?
We have amazing databases starting at $9.99 until the end of the Month!
Visit us at StarDataGroup.com
You Won’t Want To Miss This!
Buy N95 Mask only $1.69 each and get 10 pcs of medical surgical masks for FREE.
Limited Time Offer! + Fast Shipping! Get yours here: pharmacyusa.online
Regards,
ValdoBox – Welcome to my box, here we develop and speak about software.
SendBulkMails.com allows you to reach out to clients via cold email marketing.
– 1Mil emails starter package
– Dedicated IP and Domain Included
– Detailed statistical reports (delivery, bounce, clicks etc.)
– Quick and easy setup with extended support at no extra cost.
– Cancel anytime!
SendBulkMails.com
Hey there
Buy all styles of Oakley Sunglasses only 19.99 dollars. If interested, please visit our site: framesoutlet.online
Sincerely,
valdobox.com
Hey, Looking for the perfect bed for your dog or cat? This cozy fur bed is sooo comfy, and is designed specifically to calm and reduce your pet’s daily anxiety while providing better sleep, resulting in improved overall health, happiness and behavior!
(LAST DAY PROMOTION, SUPER SALE) GET YOURS HERE: dogloverclub.store
ValdoBox – Welcome to my box, here we develop and speak about software.
Hey there
Buy face mask to protect your loved ones from the deadly CoronaVirus. We wholesale N95 Masks and Surgical Masks for both adult and kids. The prices begin at $0.19 each. If interested, please visit our site: pharmacyoutlets.online
Kind Regards,
ValdoBox – Welcome to my box, here we develop and speak about software.
Hello
The complete selection of all Ray-Ban sunglasses styles available online and only 19.99 dollars.
Insanely special offer for the next 24 hours only! Get yours here: sunglassusa.online
You Won’t Want To Miss This!
Cheers,
Jeffrey
ValdoBox – Welcome to my box, here we develop and speak about software.
Good day
CAREDOGBEST™ – Personalized Dog Harness. All sizes from XS to XXL. Easy ON/OFF in just 2 seconds. LIFETIME WARRANTY.
Click here: caredogbest.online
Many Thanks,
Roberta
ValdoBox – Welcome to my box, here we develop and speak about software.
Hey there
Wholesale Medical Surgical Masks for both adult and kids – Buy Now as Low as $0.19/mask
Shop now: pharmacyoutlets.online
All the best,
Dean
ValdoBox – Welcome to my box, here we develop and speak about software.
EASE YOUR PAIN IN 10 MINUTES EFFORTLESSLY
Be Free from Neck Pain
Try NeckFlexer & Relieve Neck Pain Effortlessly In 10 Min!
Save 50% OFF + FREE Worldwide Shipping
Shop Now: neckflexer.online
Elisa
Hi
Body Revolution – Medico Postura™ Body Posture Corrector
Improve Your Posture INSTANTLY!
Get it while it’s still 60% OFF! FREE Worldwide Shipping!
Get yours here: medicopostura.online
All the best,
Concetta
ValdoBox – Welcome to my box, here we develop and speak about software.
Hello,
BestLocalData.com has a special package you get any group of databases for $49 or $249 for all 16 databases and unlimited emails for a year(Domain, IP, Dashboard included).
You can purchase it on BestLocalData.com and see samples if you are interested.
bi-directional
Muchas gracias. ?Como puedo iniciar sesion?
Your All In One Solution For Creating All The Content You’ll Ever Need.
Proprietary AI Turns YouTube Videos Into Traffic Getting Articles At The Press Of A Button!
We’ve Been Getting Free Autopilot Traffic From Google Without SEO Experience For Over 2 Years By Converting Others YouTube Videos Into Articles…
https://warriorplus.com/o2/a/gmvfs/0
Need extra income?
A fully hosted, done for you content + monetisation and a stunning design web based software that creates a fully automated done for you cryptocurrency affiliate site,
Visit us: https://warriorplus.com/o2/a/f5s4y/0
Hey
Defrost frozen foods in minutes safely and naturally with our THAW KING™.
50% OFF for the next 24 Hours ONLY + FREE Worldwide Shipping for a LIMITED time
Buy now: thawking.online
Regards,
Chun
ValdoBox – Welcome to my box, here we develop and speak about software.
What is Link Bypass?
Link Bypass allows you to easily bypass any sales page and generate a new buy link with no coding required and just a few clicks of your mouse.
How does Link Bypass work?
Step #1 – Choose any sales page you want to bypass and link bypass with automatically create a custom payment link
Step #2 – Add your new link to any landing page, sales page, or email with a few clicks of your mouse (Use your favorite page-building software or simply ‘copy and paste’)
Step #3 – Boost conversions and make more money on affiliate promotions
Visit us: https://warriorplus.com/o2/a/q8rmt/0
Hey
Wear with intent, live with purpose. Fairly priced sunglasses with high quality UV400 lenses protection only $19.99 for the next 24 Hours ONLY.
Order here: kickshades.online
Kind Regards,
Ramon
ValdoBox – Welcome to my box, here we develop and speak about software.
Hi
World’s Best Neck Massager Get it Now 50% OFF + Free Shipping!
Wellness Enthusiasts! There has never been a better time to take care of your neck pain!
Our clinical-grade TENS technology will ensure you have neck relief in as little as 20 minutes.
Get Yours: hineck.online
Best Wishes,
Frances
ValdoBox – Welcome to my box, here we develop and speak about software.
demand-driven
Hey,
It was nice speaking to you the other day, this is the service I was telling you about that helped us boost our ROI almost 2000%
Its a company called Lifemail.studio sorry it took so long to get back to you. They allow you to send any email doesn’t matter what.
We dealt with a guy named Michael, he was friendly and got us setup really quickly.
Regards,
Warner
systems
Hello,
Send unlimited emails to unlimited lists with one click and no monthly fees!
$99 once off!
LifeMailNow.com
Hey there
Meet your best Buds – True Wireless Earbuds with amazing sound, convenience, portability, & affordability!
Order yours now at 50% OFF with FREE Shipping: musicontrol.online
Many Thanks,
Moises
ValdoBox – Welcome to my box, here we develop and speak about software.
Hi there
Trim your dog’s nails safely from home.
Get it while it’s still 50% OFF + FREE Shipping
Buy here: pawsafer.shop
Sincerely,
Allison
ValdoBox – Welcome to my box, here we develop and speak about software.
Do you need clients?
We compiled some of the world’s top databases for you at ridiculous low prices. $49 for any of our databases or $99 for all 16 databases!
Visit BestLocalData.com
Regards,
Jessica
Hi There,
Are you operating WordPress/Woocommerce or maybe do you want to make use of it sooner or later ? We currently offer much more than 2500 premium plugins and themes to download : http://shortbg.buzz/fwzHI
Thank You,
Earnest
JBOD
Good day
The ultimate smashing machine! Grinding Coffee Beans, Nuts & Spices in seconds.
50% OFF for the next 24 Hours ONLY + FREE Worldwide Shipping for a LIMITED time
Order here: aromaonline.store
Kind Regards,
Faustino
ValdoBox – Welcome to my box, here we develop and speak about software.
Hey!
BestLocalData has an amazing special. 16 databases for $99.
LinkedIn(43million records) USA B2B (28 million companies), Australia, South Africa, UK, Germany and all of that included.
Instant delivery!
https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=7S34LZQSKKQHG
Or check out more on our website!
Regards,
Annabelle
Hey
Our Medical-Grade Toenail Clippers is the safest and especially recommended for those with troubles with winding nails, hard nails, two nails, nail cracks, deep nails, thickened nails etc..
Get yours: thepodiatrist.online
Best regards,
Maximilian
ValdoBox – Welcome to my box, here we develop and speak about software.
Hello
Household Mold Remover Gel
Quickly And Effortlessly Remove Stains And Mold From Crevices In Your Home!
Designed to tackle mold, bacteria, and fungus with gusto! Our formula cleans up the gunk!
Keep Your Home Away From The Mold.
PROMO BUY 2 FREE 1 FOR NEXT 24 HOURS ONLY!
Get it now: homegadget.work
Regards,
Dwayne
ValdoBox – Welcome to my box, here we develop and speak about software.
Hello from SendBulkMails.com,
We have a special limited offer for you to send unlimited emails.
We allow non-permission based emails and you won’t ever get blocked.
We also buy your domain for you and give you a clean IP and setup your DNS records.
Check us out on SendBulkMails.com
Hi there
Get The Worlds Greatest Magic Sand Free Beach Mat!
Watch sand, dirt & dust disappear right before your eyes!
Act Now And Receive A Special Discount For Our Magic Sand Free Beach Mat!
Get Yours Here: magicmat.shop
Sincerely,
Cecile
ValdoBox – Welcome to my box, here we develop and speak about software.
Hello from BestLocalData.com
Due to the pandemic BestLocalData.com is shutting down on the 14th of May.
We have more than a 100 million records of Key Executives all over the world.
We hope that this Data will serve other companies to succeed in their marketing efforts.
We have reduced all the prices to next to nothing on our website BestLocalData.com
We wish you the best in your future endeavours.
Hello
If you ever need Negative SEO to de-rank any site, you can hire us here
https://www.speed-seo.net/product/negative-seo-service/
Hey
Buy face mask to protect your loved ones from the deadly CoronaVirus. We wholesale N95 Masks and Surgical Masks for both adult and kids. The prices begin at $0.19 each. If interested, please visit our site: pharmacyoutlets.online
Kind Regards,
Adalberto
ValdoBox – Welcome to my box, here we develop and speak about software.
Hello
Body Revolution – Medico Postura™ Body Posture Corrector
Improve Your Posture INSTANTLY!
Get it while it’s still 60% OFF! FREE Worldwide Shipping!
Get yours here: medicopostura.online
Enjoy,
Emerson
ValdoBox – Welcome to my box, here we develop and speak about software.
Are you looking for the best way to market your business?
FbCourses.net has the answer..
Not sure where to start, or what to do?
Why not learn from the best. All of the best.
We are offering at never before seen prices all of the top courses for one insanely low price.
If you have been thinking of how to generate more leads, website traffic or sales today is the day.
All courses are available in full with immediate download on FbCourses.net
Not sure which one you like, for the next 24 hours we are offering the entire suite of courses for the lowest amount you could possible imagine.
Check us out : FbCourses.net
You could be driving new income or starting the new side hustle today!
Good Morning
Be Buzz Free! The Original Mosquito Trap.
60% OFF for the next 24 Hours ONLY + FREE Worldwide Shipping
✔️LED Bionic Wave Technology
✔️Eco-Friendly
✔️15 Day Money-Back Guarantee
Shop Now: mosquitotrap.online
Best,
Erica
ValdoBox – Welcome to my box, here we develop and speak about software.
Hello,
It is with sad regret to inform you that BestLocalData.com is shutting down.
We have made all our databases for sale for a once-off price.
Visit our website to get the best bargain of your life. BestLocalData.com
Regards,
Beatriz
Morning
CAREDOGBEST™ – Personalized Dog Harness. All sizes from XS to XXL. Easy ON/OFF in just 2 seconds. LIFETIME WARRANTY.
Click here: caredogbest.online
All the best,
Iris
ValdoBox – Welcome to my box, here we develop and speak about software.
Hello there
Providing Premium sunglasses only $19.99 for the next 24 Hours ONLY. 60% OFF today with free worldwide shipping.
Get Yours: trendshades.online
Sincerely,
Derick
ValdoBox – Welcome to my box, here we develop and speak about software.
Hello,
It is with sad regret to inform you that BestLocalData.com is shutting down.
We have made all our databases for sale for a once-off price.
Visit our website to get the best bargain of your life. BestLocalData.com
Regards,
Alina
Hi there
The complete selection of all Ray-Ban sunglasses styles available online and only 24.99 dollars.
Insanely special offer for the next 24 hours only! Get yours here: lensoutlet.online
You Won’t Want To Miss This!
To your success,
Shelli
ValdoBox – Welcome to my box, here we develop and speak about software.
application
We at BestLocalData.com has been hit badly by Covid-19 and as a result BestLocalData.com is shutting down.
We provided the best data to companies to find their right customer base, we don’t want other companies to go down the same path we went and go out of business.
As a result we are providing our data till the end of the week at the lowest possible prices.
BestLocalData.com
Ngultrum
Hi there
If you ever need Negative SEO to de-rank any site, you can hire us here
https://www.speed-seo.net/product/negative-seo-service/
Money Market Account
Hello from FbCourses.net
Want to pay $0.01 a click? We got you covered.
A great team of Global Digital Marketing experts have compiled this list of 13 Best + Free Facebook Advertising Training, Classes and Courses to help you learn and excel at Facebook Ads & Marketing.
Thousands of professionals have already benefited from this list on Facebook Training.
Regards,
Mireya
Color-changing swimshorts
Dive into the ocean and your swimshorts suddenly change color! These swimshorts ara AMAZING!
Hurry! 50% Off Worldwide For Limited Time Only!
Get it here: coolshorts.online
Many Thanks,
Clarita
ValdoBox – Welcome to my box, here we develop and speak about software.
The plug welcomes you with a super discount of 15% on every product for a limited period of time! (Promo code: THEPLUG)
We offer the largest assortment of private databases! Such as:
– The Largest collection of Linkedin Databases!
– Forex Consumers (worldwide)
– Casino Consumers (worldwide)
– Business Databases (worldwide)
– Cryptocurrency consumers (worldwide)
– many more..
And the best part of it! We are the only source you will ever need! We have the largest database on the market with the greatest prices and team.
Visit us: https://silent-plug.com/