Nest.js Microservices Tutorial in 20 Minutes
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- čas přidán 6. 01. 2022
- In this short tutorial, I show you how to create a Nest.js project with Microservices along with an API Gateway.
Github Repo: github.com/mguay22/nestjs-mic...
Nest.js Documentation: docs.nestjs.com/microservices...
Get my highly-rated Udemy courses at a discount here: michaelguay.dev/udemy/ - Věda a technologie
Great video and an amazing amount of practical info/learning packed into 18 minutes
Finally a good example of microservices using nestjs! Thank you very much.
First time stepping into the realm of microservices - I still had some questions after reading the NestJS documentation so I went to CZcams, found your video, and after watching I understand the fundamentals a lot better. Thanks so much for taking the time to make this!
Your examples communicated some key concepts and clarified nest js implementation options. Thanks
Wow! Great video. Really commendable! I mean, in literally 20 minutes I've gotten a detailed, conceptual image of the entire NestJS Microservice technique
Hmm I really didn't expect that it will be so easy explained. Great Job, a great developer understands he needs only to get the principles and basics right, the rest is his job and you delivered exactly that.
Great, thank you - a lot clearer to me now! You covered everything
I DOUBT
Thank you very much for sharing this tutorial. It's well explained and very helpful
Loved the pace of a video. Short and filled with information. 10/10
I think I've seen you somewhere
Awesome video, you made it so easy to understand
Amazing tutorial! Thanks for sharing
Thank you so much! Such a simple yet clear example.
Excellent vide Michael, love your content and way of explaining things. Keep it up
Thank you!
As always simple and clear explanation, thank you michael !
Thank you as always, Ayoub!
Awesome video!
Great video, thank you.
Thank you! Awesome video! In our company, someone was assigned to setup the microservices and I really did not mind to understand because I believed it was too complex for me. As long as the microservices were all set up, i just continued coding as usual.
This video made it very easy to understand and I can now see why the dev who setup the microservices decided to go with certain approach.
I'm curious about the authentication across different microservices, though. Can you make a video for that if possible? That would be amazing!
Thank you! Very good for me.
Great job!
wow! so simple lol.... You are a life saver bruh
Nice work!!
Amazing man 👌
that was so beautiful 🤯
thank you for record this video ♥
You're the best!
thank you a lot bro, it was really helpfull
Great, thanks.
I loved it !! Quick question, would this work the same with docker container?
Is there a way to use the TCP transport pattern with external apis that are not written with nestjs? And is it possible to use other TCP ports that are private to the microservices when dealing with TCP communication? Or must the traffic all go through the single "3000" port?
Great tutorial simple, and clear. Good job.
Btw can I ask what your vscode theme is ?
How do you effectively test automate these event / message based applications?
Get my highly-rated Udemy courses at a discount here: michaelguay.dev/udemy/
thanks a lot. very helpful. is there a way to avoid duplicating CreateUserEvent in all microservices?
Great video. Question: I'm getting a "no elements in sequence" from the getAnalytics call ? I'm on version 9.x.x
Is there a way to grab any message pattern and put it into a variable?
Subscribed!
How can it handle parallel processing of requests in the backend, mostly i have seen people use Java /Python to work out the backend
i didn't understand how microservices get the event. http based api it is understood that port and ip is given but how does microservice listen to event
Great !
Would like seeing this deploy using severless framework and lambda
Hi... Thanks for your tutorial... Can you please clear my doubt?.. can we call api endpoint of communication or analytics microservices?
amazing
Hello Michael how can i use typescript in nestjs
Thanks from Brasil ! õ/
How is it different from with gateway api + createProxyMiddleware ?
Which one would you recommend between this pattern and the monorepo micro services pattern in your latest video and what’s the best practice in deployment and repo management? I think I like the monorepo more cos my team is small but I have no idea on the deployment. Thanks a lot!
Really it depends on the differences between Kafka and RabbitMQ. I would also recommend a monorepo for smaller teams as it is easier to work with, but it is also makes deployment easier.
I have a doubt
Is there another way to consume mi grpc service without an api gateway?
What's the point in using the event-based communication pattern if we have to declare / inject all the subscriber microservices (sample-analytics, sample-communication) within the publisher microservice (sample-backend)? Isn't one of the primary advantages of event-based communication the fact that the service publishing the event doesn't know / care about any downstream services that may subscribe to it? This seems like there's still tight coupling between services. For example, what happens if I want to add another service that cares about the user_created event -- will I have to modify the sample-backend to allow this? Seems like an antipattern. This isn't a criticism of you or the tutorial -- thank you for sharing! It's more a criticism of NestJS if this is how the expect you to handle event-based communication.
This is a great criticism and I wholly agree. I’m making a new Microservices video that uses RabitMQ as the messaging broker which allows us to remedy a lot of these concerns around tight coupling. Thanks for watching!
@@mguay Thanks for the reply, looking forward to the updated video!
but this is good for communication between servers no?
thank you Michael for everything,
well how do you compare this approach adopted by you, where you have added multiple nestjs projects to one aorkspace, which i found flexible, VS or compared to the one adopted by nestjs monorepo (apps)?
well honestly i find this approach more flexible as i have said above for many reasons:
- Scalability.
- Teams and colaboration.
- Multi-lang dev environment.
- Database per microservice and the hustle of dealing with monorepos setup and configs for shared files and packages like prisma for example.
- Avoiding limitations by any given framework, which makes you finding yourself dealing with solving problems by the same language often with the help of the same tools which results at the end of the same results, thats what stand agains the microservices principle and patterns.
How to implement multiple messagepatterns?
how do I do if I made the microservice apart
What is that theme? pllz
How does the "sample-backend" knows that "COMMUNICATION" refers to the "sample-communication" microservice? As far as I saw the "COMMUNICATION" token is only at the "sample-communication" microsservice
by using ClientProxy, sample-backend which acts as gateway is basically the one who reach out to the other services.
Nice example
I would suggest you to use monorepos feature that Nestjs provides, quite smooth microservices architecture at the end, plus gives you ability to clean your codebase from code duplication such as dto's you're using across the services
best regards
Hi but I'm quite struggle to exclude unnecessary dependency for each app, for example we add a new dependency for ervice A, but we don't need it in service B, when building docker image we are include all this dependencies, how we can exclude them to reduce docker image size ?
@@uchihaashura5021 having a monorepo doesn't mean that you have a single docker image i guess.
Does this mean that I can share models across services? Do you have any recommendations for tutorials about this?
@@sndro1 Model should not be shared to the others services. They should be domain specific to their own service. So that you have to attach service related domain object to your service
@@aungmyatmoemakescodework I do understand that but how do I share typescript types for these models/services (so that the consuming service knows what it gets)?
Brother. Can we have a multi tenant example with nest js ?
Thanks for the video. Loved it. It would be good if you could do a video on microservices and monorepo in nestjs. I mean how do you create a monorepo microservices project in nestjs where we have one API gateway for http requests and all the other microservices listens to events sent by API gateway without allowing http requests on their own.
My new Ultimate Nest.js Microservices course will cover this! Stay tuned for its release in May.
Hi Micheal, have you used any backend framework in the past? Like Fastapi etc.
Just wondering what’s the pros and cons of using Nestjs.
Thank you so much for the video!
Good idea for a future video!
i learn a lota from this tutorial,, can you give litle bit explanation about how to get some return result about using this method,, if we using try catch in controller,, thx
At what situations we should go for a microservice architecture ? I am basically developing rest apis .So how can we make a decision on building a micro service ?
Microservices help you manage complexity as the size of your application + team grows. For simple projects with one developer, they're not as necessary in my opinion.
@@mguay ok got it
When i run 'sample-communication' app (after 'sample-backend' is running) - i got an error that port 3000 already in use...Could anyone give me an idea?
As the communication microservice by default listens to 3000 port, we need to make backend server listen to another port(eg: 3001). Then we can run both service
How to use request body in services? without passing the body in functions in controllers
I may make a video on it in the future, but check out github.com/nestjs-steroids/async-context
Hey guys, What is the difference between emit and send methods?
I believe emit actually sends a request to the ms but send just proxies the entire request to ms, correct me if im wrong
Could all these services be split into their own repo?
Sure you could but I’d say that typically doesn’t follow the standard practice of micro services. At the end of the day though do what best fits your needs.
🎉🎉🎉cool
This is good but this is gonna take a lot spaces, why not using nestjs workspaces?
what do you think about using prisma package for handling databases queries? did you ever use it ?
Next, you show how to do it using a message broker
I am unable to get the output can u guide me or respond to my comment. Plz
Do you know that Guay is a very common 80's spanish expresión that means "cool"?
At first it didn't work for me, after a while I understood that I needed to establish the host and port when registering the ClientsModule, after that it worked correctly, tks
please How did you do that, I am facing the same challenge here. I
please never mind, I have figured it out.
Why I am getting listen EADDRINUSE : address already in use error.
same problem, that's because both servers are trying to run on the same port (3000)
@@foued619 As the communication microservice by default listens to 3000 port, we need to make backend server listen to another port(eg: 3001). Then we can run both service
when starting the communication server after running sample-backend. it is giving error that port 3000 already in use
I also cloned your github project. it is still giving the same error
Me too!
Please how did you resolve this?
Still facing the issue after changing the PORTs.
on sample-backend in main.ts file . await app.listen(3001) and on sample-communication main.ts file - Transport.TCP, options:{port:3000} . use postman to send request in localhost:3001
me too, i don't know why it can work on his machine @@
Do not use a stupid max. Get on Windows.
Please some question.
- Why did you choose use TCP instead of GRPC and what are the benefits?
- How do you host something like this 🥲🥲
- Is it possible to share code between services, like types or DTOs?
Thank you for this video BTW, I've been struggling with this concept and you just simplified it in one short video. 👏🏽👏🏽
+1
Hi Michael Guay, what's your twitter handle. Nice job!
Thank you! I don't have a Twitter though.