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The simplest way to build scheduling in .NET with AWS

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This video is sponsored by AWS
Hello everybody I'm Nick and in this video I will show you how you can leverage AWS cloud technolgy to implement scalable, serverless and reliable scheduling in .NET and C#. In this video I am going to use AWS EventBridge and AWS Lambda to create scheduled executions of lambdas that allow us to build scheduling with minimal cost and without having to host and run any service ourselves.
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Опубликовано:

26 авг 2024

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Комментарии : 61

@mihainicula2418 2 года назад

Hey Nick, real appreciate your videos. Keep it up! Can you please make a video about Dapr?

@naftalyweinberger7892 6 месяцев назад

nick don't get discouraged by ppl bashing about sponsored stuff, do it more often AWS is great

@user-ff7ei4ob8b 2 года назад

thanks for the new knowledge, but when I entered, I did not expect that the "simplest" method would be attracted specifically to AWS, since this is a direct dependence on whether the customer will work with it or not

@nickchapsas 2 года назад

I don't know why you assumed that. This is the same as the simplest way to do something else being tied into a Nuget package. It's the same idea. There would be a dependency, there would probably be a license (like with Hangfire) or there would be something else. The simplest doesn't mean vanilla.

@_Aarius_ 2 года назад

I had to build essentially the same thing at work, event bridge on a 1 minute cycle to a c# lambda, get current time and find all pending events in a db that need to run, calculate next run on an associated cron per event, update db, repeat. Worked really well, really cheap, had no issues with it running nonstop for over a year. Using a db to to store the actual cron rules avoided the issues of maximum event bridge rules (300 I think?)

@klausjensen2978 2 года назад

I don't use AWS, so this is not for me, but I am very curious about a future video about an alternative to Hangfire! Keep up the good work, Nick!

@mbv401920150 Год назад

I love the video, I have troubles using the plugin in Rider (AWS ToolKit) to debug my code locally. I will save the video for reference! Thanks a lot to share!

@HogneVevle 2 года назад

Great content, thank you so much! I've played around with Lambda in the past, but never really grasped how to efficiently use them in a multi-environment setup (dev, test, prod etc). If you're taking requests on future videos, this is for sure something I'd love to learn more about from a pro :)

@ThisIsThe123 2 года назад

AWS sponsorship - i understand that it's new for you and you get money, but seem that i'm fading away from this channel. Liked how you work with native .net built in things. Was expecting like IHostedService or smth described here

@nickchapsas 2 года назад

I'm all about pragmatic solutions and always have been. Building your own long running service for simple scheduling like the one shown in the video is a haste of compute, time and money and not something I would recommend, so making a video showing how you can do that using IHostedService, would be harming my viewers. Cloud experience will also take you way further in your career than just .NET experience. At the end of the day you watch my videos because you want to know how I would do things. This is how I would do this one.

@mattix18 2 года назад

@@nickchapsas I would love to see IHostedService in action made by You, just to have comparison.

@nickchapsas 2 года назад

Not something I would make a video about. It's very tricky to get working reliably and at scale. I only show and recommend things I have personally used in production in my videos. I've never been crazy enough to make my own scheduler. I've used Hangfire in the past, which worked for a while but I ended up using differnet cloud tech after all, to implement scalable high throughput scheduling, which I might make a video about in the future.

@thomas.leitner 2 года назад

@@nickchapsas Hmm I guess he means "build scheduling" can be interpreted as "building an own scheduler". Probably the title should be more like "The simplest way to schedule .NET functions".

@nickchapsas 2 года назад

I can't title things for what people assume the title should me. For me it's pretty clear that we are not building a scheduler. If we were then it wouldn't be simple.

@RandalGJunior 2 года назад

Could you please make more videos about c# and aws? That is a very interesting and hard to find topic. Perhaps with apis and grpc.

@vabaku7913 10 месяцев назад

Thanks, NIck, it was really interesting and helpful 💪

@stevojohn 2 года назад

Have used this method, can confirm it's a good, reliable approach.

@utsabshrestha277 2 года назад

Hey Nick, yo mentioned the better scheduling tool than hangfire, could you tell us which one is it ?

@francismarasigan3671 2 года назад

Yes. I'm also interested about what is better than hangfire. The issue with Amazon Event Bridge is the serverless nature of it. The Task we want to execute has some dependencies that only available on our internal network and can't be hosted to AWS.

@sodreigor 2 года назад

Great video Nick! Love the AWS content. Keep them coming

@briangrange 2 года назад

It should be mentioned that this approach can have some severe limitations if you want to create a lot of schedules for your application. Reason: EventBridge only supports 300 rules (schedules) per region by default. This 300 limit can be increased and in fact AWS has bumped to 1000 for one of my projects to get me over the line.. I do however have concerns if it's going to scale well and I'm probably going to have to look for an alternate solution, a default of 300 tells me it was never designed to have thousands of schedules. If we ignore this limitation it works really well in my experience.

@nickchapsas 2 года назад

That's true but I personally never reached anything close that number and I am working in a pretty big company. That's probably because I have few rules running multiple times rather than many rules running once. Solid point though thanks for raising it.

@briangrange 2 года назад

@@nickchapsas Agree, for most applications it's probably fine as you say; in my case I needed to let my SaaS customers schedule business processes it adds up quickly.

@nickchapsas 2 года назад

Ah yeah in SaaS scenarios that's a completely different scaling use-case

@wh33lers 2 года назад

Thanks for this video. Like the idea of using event bridge this way. Also happy to see the short warmup time. Keep AWS content coming.

@callindrill 2 года назад

Would love to see the azure alternative, too. Thanks for the video!

@nickchapsas 2 года назад

Azure is pretty good at this type of scheduling too with their Timer Triggers. I find it a bit less flexible because you can't pass a custom payload though.

@callindrill 2 года назад

@@nickchapsas makes sense. Having two functions, e.g. Timer Trigger and Event Trigger, allow for one to have a custom payload and the other to be set up on a timer.

@willinton06 2 года назад

I usually do Azure for everything but I have a little job I need to run once a minute, I’ll give it a try on AWS for the sake of experimentation

@anreton 2 года назад

Great work! Please make video with Quartz too.

@Bennevisie 2 года назад

Hangfire is the G.O.A.T. as you will not be locked in to a specific cloud vendor.

@nickchapsas 2 года назад

Hangfire is good, but the usecase of the video it is orders of magnitute more expensive, it needs a database unless you hardcode the events and it needs to be hosted. It is not bad, it's just way more upkeep for something that could be way simpler and free.

@jodyscheckter11 Год назад

What do you suggest if the lambda execution takes an hour? I have a batch job which loads rows from a database and processes each in turn. I think the processing of the item should be in a lambda, and the database access and loop hosted somewhere else, but I'm not sure where in AWS.

@joshstather3543 2 года назад

Hi Nick, big fan of your videos! Quick note on event bridge though... if you're receiving a matched event, don't you just need to receive an object of type CloudWatchEvent as opposed to CloudWatchEvent ? Also, if you're receiving and handling events through event bridge (I.e posting an event to event bridge directly instead of through a scheduled rule), is it not better to use MatchedEvents and to receive an event like CloudWatchEvent @event instead of just YourEventType @event? That way you still have access to the useful properties exposed on the CloudWatchEvent type, such as Version, Id, Time and DetailType. Time and Id are useful for logging, Version is useful for handling different event versions, and detail-type is useful for various design and naming reasons. Sorry if any typos I typed this on my phone 😄

@nickchapsas 2 года назад

Unfortunately if you specify a custom payload in Scheduled Event on EventBridge then you no longer get the full cloudwatchevent but rather just the details object. The normal matched event logic or cherry picking properties thing just don’t worn like it does when you’re using it like a regular event bus. At least I haven’t found a way to get it to work like that and I tried a lot of stuff

@MohammadGabr 2 года назад

Great video , please make a AWS + .net Series :)

@thekingofmountains 2 года назад

Great content Nick! can you please talk about C# expersion?

@impeRAtoR28161621 2 года назад

@nick which is better alternative to hangfire you mentioned in the beginning of video?

@AnotherFancyUser 2 года назад

Hey Nick, What books do you recommend to know and understand more profoundly the .net framework?

@hanspetervollhorst1 2 года назад

Thank you for mentioning that it is sponsored within the first minute. It would be even better if you could also mention that on the thumbnail. Please give it a thought

@nickchapsas 2 года назад

There is no reason having it on the thumbnail. Sponsored or not, the content is the same as the rest of my videos. I would create AWS content anyway

@hanspetervollhorst1 2 года назад

@@nickchapsas Had to think about it for a while, but the difference between a sponsored and a non-sponsored video is, that sponsoring introduces another interest group, which takes - however minor - influence. I am not saying that it is per-se good or bad, but personally, I would rather choose to opt out of sponsored content. Having purchased all your courses, I can confidently say that I would much rather pay for unaffected (non-sponsored) content.

@nickchapsas 2 года назад

@@hanspetervollhorst1 And you can. The disclaimer is in the first 30 seconds of the video. Worst case scenario you "wasted" 30 seconds. I disagree with your point still because I would still make the same video even if it wasn't sponsored and I have at least 30 more AWS and Azure related videos in the pipeline. The content is still the same. If you don't want sponsored content then assume that all the AWS and Azure videos are sponsored and don't click on them.

@dmitriypisarevskiy7200 2 года назад

You need to try AWS Batch service it is more helpfull than labmda.

@DrHeinzDoofenshmirtz 2 года назад

Hi Nick. I know you were sponsored by AWS, but you say many times this is your favorite approach. How does Azure Functions compare to Lambdas? I mostly have experience with Functions, and nothing here seemed too different.

@nickchapsas 2 года назад

Azure Functions Timer Triggers are really nice too. I think the biggest difference is that you don't need a separate event bus technology in Azure to have scheduling, however that in return prevents you form having any trigger payload customizability as I show in the video or the dead letter queue mechanism unless explicitly implemented within the lambda. So if you need that customizablity then AWS wins that one. If not then the Azure approach is a bit simpler.

@DrHeinzDoofenshmirtz 2 года назад

@@nickchapsas Thanks for taking the time to answer! I believe Azure has the event bus as well, if it is needed. Just wanted to hear your thoughts :)

@nickchapsas 2 года назад

@@DrHeinzDoofenshmirtz Oh that's true, Event Bus can be a trigger for Lambdas too. I haven't actually tried that in the past and I don't know how it works in that context but definately something to take a look at.

@raymondseah8499 2 года назад

Just a Question, i am currently trying figure out how to code one lambda function to handle event data from 2 event buses, with Different Data/Object Structure, is there a way to handle 2 different input without explicitly create 2 class to handle 2 different input?? Will ultimately manipulate to put into dynamoDB.

@nickchapsas 2 года назад

Technically you can yeah. You just need to pass the item as an object, and the serialise it to the type you want inside the handler

@mihaimyh 2 года назад

Any plans on a video onscheduling without a cloud based solution? Something like Hangfire?

@nickchapsas 2 года назад

No plans for a Hangfire video, no

@warrenbuckley3267 2 года назад

Are AWS Lambda functions equivalent to Azure functions?

@nickchapsas 2 года назад

They are AWS's equivalent, yes

@remi8118 2 года назад

I discovered Coravel last week, It's not cloud based but I found it way more simple. What your advice on it?

@nickchapsas 2 года назад

I actually came across Coravel last week to and I'm considering it for a video. However, this video is about managed reliable scheduling which is basically completely hands off so until I see similar stuff from Coravel, cloud based solutions are still my favourite.

@remi8118 2 года назад

@@nickchapsas I understand! Thanks for the quick answer!

@zlarak 2 года назад

I've had good experience with Coravel, but my only gripe is that it doesn't handle replicas. I have stuff I want executed once in a given time, but my app is replicated for high availability. So I either only activate scheduling on one node (losing my availability benefits), or have all nodes execute the action (which is not desired most times).