Python Microservices Full Course - Event-Driven Architecture with RabbitMQ

👉 Check our website: scalablescripts.com
In this video, we will create a simple Microservices example with Python Django and Python Flask, We learn how to create an Event-Driven Architecture with RabbitMQ. The apps will use Python Pika to send events to the other apps and everything will seem to work as a Monolithic app but is actually a Microservices app.
Source Code: github.com/scalablescripts/py...
00:00:00 Introduction
00:04:05 Django Setup with Docker
00:11:08 Database and Migrations
00:20:17 Django Products CRUD
00:36:29 Flask Setup with Docker
00:50:21 RabbitMQ
00:58:01 Consumer Service
01:02:55 Data Consistency
01:10:37 Finishing the apps
#python #microservices #django #flask

[@cbaxtermusic]

Great Application, Very easy to follow, and an awesome example of using multiple technologies for a project.

[@brucehaskinvt]

Quality work. Greatly appreciate your efforts.

[@arturkabitcher]

great stuff! keep on going with materials like this one

[@saifgaida5872]

before even starting you know it's gonna be awsome!! thank you for sharing

[@henriquekubenda6063]

pretty straightforward, it was even fun to follow, thanks a lot!

[@ScalableScripts]

Glad you liked it!

[@astrolillo]

Excellent, no fluff, no idiotic remarks, no yelling, very refreshing, compared to most coding youtube "teachers"

[@kamaleshpramanik7645]

This is an awesome video. Thank you very much Sir.

[@ashokavanjare]

Thanks for your videos. Excellent Explaination.

[@yeabsiraashenafi3924]

Very helpful video, Thanks

[@wispawelwis38]

this is how you make tutorials, thanks

[@Raj0x01]

Basically 9:35 volumes of docker-compose work like synced directory with container and host application folder.

[@elsofernandes]

thanks a lot!

[@ScalableScripts]

Reminder that you can combine this video with other videos: React and Python Microservices: kzbin.info/aero/PLlameCF3cMEva65psDFX1y_gN2Tmh704t VueJS and Python Microservices: kzbin.info/aero/PLlameCF3cMEu_67Jy1HzqP97X4rmqr1wR Angular and Python Microservices: kzbin.info/aero/PLlameCF3cMEsKfHvtGOsioMOoS_oFicHr

[@shashankgehlot5683]

thankyou sir.

[@davitkvaratskhelia4033]

Happy 3 years anniversary to this video!

[@meoconhoccode]

thanks

[@natetolbert3671]

What is the point of creating a virtual environment inside a docker container? Seems a bit redundant...

[@natetolbert3671]

Regardless, great video.

[@zhunisali]

For vscode it's helpful.

[@inspisiavideos8542]

Probably a bit redundant. There are many companies that have their own way. Great video though

[@futhedude4848]

recap: this video is about 2 module: "product" and "main" "main" is like a client side where it will list the products and client can give it a "like", this service is by django "product" is like a admin side where admin can do CRUD for the products, this service is by flask the database is basically the same, except for the "like" behavior. this 2 service use rabbitMQ to sync data to each other. Ex: when admin do CRUD for the products in the "product" service, it will create message to sync to the "main" service as well. when client give product a "like", it will create message to sync to the "product" service as well.

[@snagendra5415]

good work,thanks for posting in youtube .as you said in description it seems monolythic but is not. can you/anyone say at where it is representing microservices.

[@TheAremoh]

Thanks for this tutorial. My question is, can I also create the consumer file in the product app of the admin?

[@vineethsai1575]

If anyone gets `OSError: mysql_config not found` when installing mysqlclient, Make sure to install this first `sudo apt-get install libmysqlclient-dev` For Linux users.

[@HARSHYADAV-wk2zb]

can the frontend directly interact with the rabbitmq. consider a scenario where there may be lot of api calls that might slow down the server so can we directly update the queue from frontend

[@juanandresrodriguezpedreir8922]

I´m unable to connect to the database at 14:44. Do I need any docker image configuration not mentioned?

[@sanathrao2009]

what are the pre-requisites in terms of tech language to start this video

[@abhishektiwari9561]

I am unable to edit files in products app after running startapp from container. Please help.

[@abhipatel8510]

Docker-compose up giving me docker excption: docker.errors.DockerException: Error while fetching server API version: (2, 'CreateFile', 'The system cannot find the file specified.') I have the file but it stills shows this. can anyone help?

[@bonfimjustino3455]

Very good video, any way to consume messages from rabbitmq in a websocket client?

[@3elasm]

Basically same question here, I’m using a producer class which is inherit of thread to keep the WS alive and every single message i receive on my WS callback is sent to rabbit

[@chihabahmed5207]

Hi there, Do you think its a good idea to have auth service, account service in a microservices or just one of them responsible for login , logout, register, delete account, forgot password etc etc at the moment I have two service, auth and account account is responsible for adding user and other user profile features. the auth is only responsible for issuing token when the user tries to request. so it only has one function at the moment but thinking about this, I realized that I am over doing things, I could include anything to do with user in one service and thats it instead of having account service talking to auth service about a new user added. do you get my point ? what is your input on this ? do you think its a good idea to have auth service and account service or the account service alone should be enough and later I can create a service that will responsible for controlling users settings as an example. so basically what I mean, I should have one service called "account service" and that service is responsible for adding user, login, logout etc etc just like in a monlith app or two services, one responsible for generating token and checking if users is banned, not verified. so for example, if I ban a user , I only need to switch that isBanned to true from the auth. well I could do the same in account service. what do you think a good option to have or both are valid thanks

[@jorisjansen2892]

Hi Chihab, I was wondering if you al ready did some research or finished something in the mean time? I’m thinking about creating multiple different Django application connected to each other, but I can’t find any about this. Thanks!

[@chihabahmed5207]

@@jorisjansen2892 I created a service called Auth and another one called account The account is responsible for all account stuff, profile update, create account, forget password etc etc The Auth is responsible for issuing jwt on login success I went with this choice, although you can merge all of them in one.. As for the lang, j used node js, nats streaming for communication between services like rabbitmq and kubernetes to control all services

[@jorisjansen2892]

@@chihabahmed5207 thanks for the response. Do you check the JWT on every request on the auth microservice before you handle the request?

[@chihabahmed5207]

@@jorisjansen2892 I have actually watched a really nice lecture regarding this but I forgot what it was But basically on you tube check for how to secure microservices or something like that There many security practices you can take into consider At the moment my app is not secure enough So I need to implement refresh token strategy At the moment, share jwt with all services in kubernetes, because kubernetes have a jwt key variable so you can use it in all services. Basically the service would connect via process.env in node js and it will get the jwt key In regards to using it in every request, yes at the moment I am doing that but I need to rewatch that lecture again because it's really helpful. So I can't give an actual answer because I am not done yet

[@chihabahmed5207]

@@jorisjansen2892 sorry for the confusion Basically, at the moment the Auth service gives you token if login pass okay Then j have react native app would store that key, so the next request should be to private or secure endpoint it would send the token in header Since that service has access to jwt secret in kubernetes then it can verify if that token is valid or not This what i have so far Here is lecture kzbin.info/www/bejne/iX3GZJaKod6jra8

[@cando_jo]

why did you have to copy requirements.txt first in the Dockerfile? Aren't you copying everything anyways?

[@brucebatmanwayne8514]

is it difficult to answer "why" before just copy pasting the code? eg: at 27:53, couldn't you have mentioned why you are copy pasting the code? it's a "python microservice course" not a Django course. It is bad teaching habit in my opinion to assume the learner would be familiar with Django

[@ilhanmertalan640]

when i try to connect main app's mysql, getting 'Communications link failure' err ? anyone get & fixed or any idea

[@joaorenatomendes2200]

me too... could you find an answer?

[@iansabi4935]

This error occurs because tag for mysql mentioned in the video is not supported anymore In the docke-compose.yml file, change the MySQL image tag example, db: image: mysql:5.7.44

[@cursedgrape1247]

am I missing the microservices part?

[@varadaamrutharatna9116]

Which application are you using to do this all code?

[@vineethsai1575]

Looks like PyCharm.

[@varadaamrutharatna9116]

@@vineethsai1575 Yes. Thank you

[@doloreslaflipoflopo2746]

are you Albanian?

[@sridhar7251]

the simplest fucking thing you couldve done is tell what all softwares are supposed to be pre-installed for this project, for beginners like us