Microservices Tutorial for Beginners | Building Microservices with ASP.NET Core

[@abhishektenneti1604]

A zero knowledge .Net guy can come directly here and learn a lot about it. So helpful!Thank you!

[@ScholarHat]

Important Note: If you are using Ocelot 16.0.0 or higher, you should change the key name from "ReRoutes" to "Routes", else you'll keep getting 404 error.

[@sumangeorge7]

i was wondering why i was receiving 400... Thank you for the help!!

[@saikat114433]

I have spent 1 hour to resolve this and found this comment. Thanks!

[@chetankawale6601]

Thanks Sir. I am also facing same issue in latest version Ocelot

[@interviewhappy]

Superb

[@ramachandranthangam6421]

Fantastic shailendra..hats off

[@ScholarHat]

Hey Ramachandran, You are most Welcome! We are glad to be a part of your learning journey. Do subscribe the channel for more updates Hit the bell icon to never miss an update from our channel!

[@tarunsharma8633]

Where did you implement communication b/w two api

[@rbogdan8980]

why you don't use swagger?

[@girdhargopasingh337]

Thanks for your suggestions

[@ScholarHat]

In this scenario it is not required. Swagger, we use for API management.

[@karimalaa9050]

Shall I have to specify all my microservices routes in the ocelot.json, or should be handled dynamically in each microservice itself.

[@ScholarHat]

Yes, you need to define all microservices routes in oceot.json to provide common interface to outer world.

[@nehasa302]

Very very nicely explained

[@hidenseek0654]

Can you show the Put method. I have tried several way...but donno why it's not working

[@Axstrus]

Nice video... Completed end to end video for a beginner...

[@ScholarHat]

Glad you liked it. Keep learning with Dot Net Tricks

[@mohsinshaikh8363]

How to do communications in between services?

[@ScholarHat]

You have to implement communication patterns: request-reply, message or event-based.

[@BendaoudAbdelmounaim]

good work friend thank you

[@gurpreetsingharora8018]

Step by step nice explanation. ☺️☺️

[@ScholarHat]

Glad you liked it

[@avolamedia]

Thank you It is helpful.

[@manishroy1372]

Really Nice. Step by step explained the entire implementation. Thanks

[@ScholarHat]

Thanks you liked it.

[@srinu702]

Thank You This Video cleared out Microservice

[@raagasongs]

Very nice and easily understandable..

[@Kaushik-RoyChowdhury]

Good one Shailendra. Learnt about Ocelot Gateway mate.

[@NethiestChannel]

Having a single API Gateway for the whole service implements SPoF. What you want for the highest reliability is a dedicated API gateway per service that needs it. e.g. userservice, orderservice, productservice would all have separate APIs just in case gateway dies.

[@ScholarHat]

This sample is to understand the concepts. In reality, you have to use multiple API gateways to achieve High Availability.

[@dearalok11]

Very informational video .Just a suggestion ... avoid repetitions to make it shorter .

[@namanvohra8262]

Thanks for the video, you gained a new subscriber. Could you please add a more complex example of how two microservices that are interrelated can interact with one another? For instance if the client needs data from the two microservices. Thank you again for this video.

[@sushmajaarumalla474]

I also need this scenario... do you got any such example @naman

[@namanvohra8262]

@@sushmajaarumalla474 Hey, u can check out request and custom aggregation in Ocelot, basically it combines responses from two microservices and u can edit the combined response before returning to client

[@dsmercy9506]

Thanks for sharing

[@teja6124]

Hello Sir, How do you we mange microservices when a lot of applications are running?

[@sathieshkumarrajabaskaran5408]

Good content for beginners. Great!

[@supunsamarawickrama5495]

very useful and nice explanation. Thanks !!

[@venugopalkothuri9077]

Can we have the microservice hosting steps as well?

[@pgviyer]

I did follow all the steps and created the project. Though the API works fine. Getting a 404 error while trying to access the service through the Ocelot API Gateway. Is there any specific version of the Ocelot Gateway to be used for this example ? Kindly help.

[@pgviyer]

Well. I found a fix. I had installed the latest version of Ocelot gateway in the project. Instead, I uninstalled it and installed the version 13.8.0, that was used in the project. Things started working. Thank you.

[@jaicinds6623]

I faced the same issue with ocelot version 16.0.1. To fix change the ocelot.json "ReRoutes" tp "Routes". Refer ocelot.readthedocs.io/en/latest/features/routing.html

[@ScholarHat]

Please do refer this new video: kzbin.info/www/bejne/ZoOldaRjhtqmfpI

[@konathamnageswarrao7306]

Super for start up programmers.i have a question ,both the application should host in web server(IIS) to access both the URLs

[@ScholarHat]

yes, you can host them.

[@Narendrasanchi]

Great video. Do you have this code available on GIT. Could you share the link

[@petereikore3785]

Nice Tutorial

[@ScholarHat]

Thank you Peter

[@skmedia6890]

How to host microservices wit api gateway on IIS?

[@ScholarHat]

Hosting the asp.net core based microservices on IIS is same as we host asp.net core web api.

[@skmedia6890]

@@ScholarHat can u please share in detail about it?

[@davewai7620]

thanks mate. Great video

[@swastikayadav6741]

I am getting 404 error while fetching microservices via ocelot web api?

[@sri_nainika]

Me too getting same 404 error... any idea?

[@pgviyer]

uninstalling the latest version of ocelot gateway and installing the version 13.8.0 made the things work for me. Just give a try.

[@pgviyer]

@@sri_nainika uninstalling the latest version of ocelot gateway and installing the version 13.8.0 made the things work for me. Just give a try.

[@danielbrandt874]

@@pgviyer Thank you so much! Worked for me too!

[@ScholarHat]

You can also try new video here: kzbin.info/www/bejne/ZoOldaRjhtqmfpI

[@jipsonettuthottiyil]

Good content. Thank you

[@samchoise]

Can you please create another video to communicate between microservices.

[@inkquillspublishinghouse]

I am too looking for this...

[@girdhargopasingh337]

Sure #SamirMistry

[@ganeshgite7701]

Really nice content, step by step explain properly. Thank you.

[@Gojam12]

My code is inheriting from ControllerBase like yours but there was no implementation or error from not having the implementation of the methods. I had to write them in. Why is that?

[@sampathchaganty8519]

For return user based upon I'd we use db.User.Find(Id) what if we return based on name like string we can use db.User.Find(name)?

[@nguyentam5030]

how to config ocelot run on swagger?? Thanks Sir

[@jamesgoddard1698]

Great video no errors untill i ran into this on the Program.cs file System.InvalidOperationException: 'A public method named 'ConfigureDevelopment' or 'Configure' could not be found in the 'APIFrontEnd.Startup' type.'

[@jawandsingh1464]

I do not agree with this video. People know how to create APIs. What you should have taught them is "what is mindset behind microservices". You must have used a kind of scenario where there is tight coupling between two tables and show them how to split them. That's real microservices.

[@Weblogic81]

I agree actually. This is just a normal api dev tutorial.

[@ScholarHat]

Please do refer this new video for understanding concepts behind it: kzbin.info/www/bejne/ZoOldaRjhtqmfpI

[@oudinia1]

The api gateway and use of ocelot is interesting for me. The rest, is classic, but we can simply skip to the gateway part. Still a good video, despite the non conceptual view of building a microservice, you do get a practical straightforward dev process on Visual Studio.

[@SuhasBharadwajK]

Important Note: If you are using Ocelot 16.0.0 or higher, you should change the key name from "ReRoutes" to "Routes", else you'll keep getting 404 error no matter what.

[@kakmca]

Thank you very much, Suhas. Your comment helped me to resolve the issue, which otherwise, I thought to give up.

[@SuhasBharadwajK]

@@kakmca you're welcome :)

[@ashutoshsoni3017]

Thank you very much, Suhas

[@karammotraji8966]

please if u could, i have a question if i started with the api project then created a model and scaffolded the api controller with actions using ef core and then dockeriyed the app and i already have an SQL Server Container how can i connect the two containers using docker compose what should i add to the yaml file for docker compose to connect the sql server container

[@ScholarHat]

Use docker stack for deployment so that they are deployed as service. Between services communication is easy.

[@DeepakKumar-df4ef]

i followed this video but my APIGateway isn't working, i have checked my code but still no idea what is the issue. any help will be appriciated.

[@ScholarHat]

make sure you have configured the routes at right place :)

[@DeepakKumar-df4ef]

@@ScholarHat it was related to Reroute keyword

[@manishjawarkar84]

@@DeepakKumar-df4efI am also getting the same issue, could you please let me know the solution?

[@manishjawarkar84]

I got fix. For latest version of Ocelot, change "ReRoutes " to "Routes" in ocelot.json file and it will display the required result.

[@niroshanmanoharan4295]

Thanks a lot for the simple and informative explanation.

[@DuongNguyen-gg3uc]

You may want to enable the closed capture (CC) since it is hard to understand what you are saying.

[@khushalchouhan866]

If you picking any topic pls try to make complete video on that.

[@prateekkumar8887]

Please make one video on the Kestral server how work

[@bhavyar2986]

Nice tutorial. So microservices involves service1 having its own database1 and service2 having its own separate database2. Let's assume we already have an existing database where we have all related tables. In this case how to split existing monolithic application into microservices where each has its own database? Eg: shopping application We have orderservice and cartservice.. Do both have same database but different instance ? If separate databases then how's related data managed ?

[@trunghieudang4259]

Thank you very much! It's helpful

[@ScholarHat]

Glad you liked it. Keep learning with Dot Net Tricks

[@manojr40]

Simple and Excellent ❤️

[@ScholarHat]

Hey Manoj, You are most Welcome! We are glad to be a part of your learning journey. Do subscribe the channel for more updates Hit the bell icon to never miss an update from our channel!

[@learnhtml8852]

indicate whether to send a cookie in a cross-site request by specifying its SameSite attribute error

[@AbdulKareem-ve2yp]

Excellent

[@ScholarHat]

You are most welcome! Do subscribe to our channel to stay posted on upcoming tutorials.

[@avinashtippe1113]

Very good explanation. One question, can we have different ports for each route?

[@anilkanojia9961]

Nice Explained. Thank you

[@ScholarHat]

You are welcome

[@SAGARAUTE]

Thank you

[@seenuvasanmanoharan530]

very nice way of explanation end to end. can you also share some reference how this microservice is deployed in cloud and test using postman

[@redachouiba4862]

Great job

[@madhumishra8468]

Hi..while adding the migration command I am getting the error "Script halted"..What does this error mean?Can you please help.

[@ScholarHat]

Please do refer possible solution link : stackoverflow.com/questions/58643426/add-migration-command-only-prompt-scripthalted

[@madhumishra8468]

@@ScholarHat Thanks..I will Check

[@shyam15111986]

I followed this tutorial but my Gateway api does not work. I check for the code several times, and it is same as the video.

[@ScholarHat]

Please do refer this new video: kzbin.info/www/bejne/ZoOldaRjhtqmfpI

[@kakmca]

Hi Shyam, I am also pretty to Microservices like you. Hence, I followed this tutorial. Gateway API did not work for me as well. I followed comments, and I solved all the issues. I am pretty sure that users comments will definitely be helpful to you. Please give a try by following these comments.

[@nakibulshaki]

Thank you so much sir ! Nice job

[@girdhargopasingh337]

Pleasure #NakibulShaki

[@sanjaypakale6902]

Really great explanation.. Thanks for all the information..

[@girdhargopasingh337]

Thank You#Sanjay

[@N7CommanderJohnFETactician]

Awesome course, thanks!

[@GuerreroVicttor]

Awesome, thanks!!!

[@girdhargopasingh337]

Thank you Victor

[@tonifersil]

After follow this tutorial my api does not work. I check for the code several times, and he is equal as the video.

[@girdhargopasingh337]

Did you share your code with DotNet Tricks

[@adaptor700]

is there a github source?

[@WikkiOnIlluminati]

Thanks for very good video.

[@rupenanjaria]

GitHub path?

[@anuragvishnoi3921]

I get this error whole doing the update-database for database "A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)". Can you please help

[@NalinJ]

This is great, thanks 🙂

[@ScholarHat]

Thanks for the compliment! Keep learning with Dot Net Tricks

[@dineshkumarramasamy6237]

Thanks sir it is very useful.

[@rbogdan8980]

n-layer architecture it's not monolith

[@melk48111]

awesome. Thx

[@girdhargopasingh337]

Greta!

[@papputarun]

How to call multiple controllers in microservices

[@akak447]

Thanks, I found it very helpful

[@angmathew4377]

good stuff and well covered.

[@girdhargopasingh337]

Thank you

[@marwarimansa_it_baba5336]

Sure it's was very nice and worthy contain. Please creat event based communication between two microservices

[@abu7midan]

the best course and very clear , easy to understand

[@girdhargopasingh337]

Thank You Mohamad

[@krchandancs]

Very well explained sir 👏👍👌 👏 Can we get github of this demo if possible?

[@hiteshnirmal7350]

I am getting error 499 . please help me

[@Funkfreed]

Is it safe to put the database connection in the same project?

[@pawankumar-cn1ty]

1.Don't go from Blank Solution(waste of time, because Your Solution will not work), directly start from creating project and choose WEB API core 2.While add entity don't forget to Key attribute for the primary work other wise migration will not work

[@rush2112chile]

Thank you very much for this great tutorial. It's really usefull.

[@AnilKumar-xx1io]

Please Provide Source Code

[@TechhubIndia]

add-migration initial update-database -verbose

[@CyrixLord]

well, its not pretty but this video answered a lot of questions regarding how to approach building a simple API suited for microservices and using ocelet.

[@xyyx1001]

Where are the subtitles? Thumbs down.

[@HimalayaGarg]

This video do not mention whats the concept behind microservice, just explained api. Wasted whole time.

[@ScholarHat]

To know about the concept, please do refer this video kzbin.info/www/bejne/ZoOldaRjhtqmfpI

[@kuldeepgill2694]

All about very simple API, nothing about microservice! Don't waste your 50min.

[@rgubri3711]

This is the tutorial of simple webapi service with ef. You just hv created a service..do u mean it is the microservice architecture? its just waste of my time

[@ScholarHat]

It's a sample to create one microservice. Similar way you need to create others and do mapping with the help of ocelot and start implementing ocelot features like authentication, aggregation and others.

[@DebasmitSamal294]

Excellent

[@ScholarHat]

Hey Anshika, You are most Welcome! We are glad to be a part of your learning journey. Do subscribe the channel for more updates Hit the bell icon to never miss an update from our channel!