Watch this episode on YouTube: https://youtu.be/hFGrKjtWsQg
Transcript:
ON BEST PRACTICES...
Episode #1: Alex DeBrie
Asking about best practices and the reality of implementing them...
@4:24
Alex: I think it's pretty fascinating to see. Like you say, if you're on Twitter and you're following a lot of the big time people doing serverless architectures in this space, they have a lot of great tips around best practices, and this is what you should be doing, all that stuff. But I find, as I'm building serverless applications or as I'm talking to customers and users that are building serverless applications, there are times when there's tension between what the best practices are and what their circumstances are. This could be because maybe they're not coming in with a green field application, or maybe they have a data model that doesn't fit DynamoDB or something like that. It's difficult on how you sort of square that with recommending something that you know isn't the best practice or the most pure serverless application, but you also gotta help people ship products, right? I think balancing that tension can be tough at times.
Episodes #18 & #19: Michael Hart
@30:25 (Ep. 19)
Michael: There's nothing special about Lambda in this respect. It's like, this is just sort of best practices if you were calling any API or if you're writing any API that if you're waiting for many, many, many, many seconds, then you might want to deal with that. And those are the sorts of use cases where I think, okay, fine, that's perhaps not a good practice. You actually, you asked me. We use this at Bustle. So we have a Lambda that renders our frontend HTML code. It's a preact app. It does service side rendering of the HTML, but it delivers to the, you know, to the browser via API Gateway and a CDN and things like that. But it calls our other Lambda directly, which is a GraphQL backend. It calls that to pull in the data that it needs to render the HTML page. Now in the browser, it also will call that GraphQL backend , but it will do it via API Gateway. Because it's coming from the browser, so it needs to make some an authenticated HTTP request into the function. But when you're in the Lambda world, well, that Lambda can just call that Lambda directly, and call the GraphQL Lambda, and that goes to Redis and Elasticsearch wherever it needs to pull the data and send it back. And we just make sure we have the timeouts tuned such that, you know, I mean it responds within milliseconds. It’s not even a thing we would really run into.
ON INSTRUMENTATION...
Episode #2: Nitzan Shapira
Asking about the need to automate instrumentation...
@29:35
Nitzan: Yeah, by the way, it's not just worrying. It's not just the fact that you can forget. It's also just going to take you a certain amount of time - always - that you're going to basically waste instead of writing your own business software. Even if you do remember to do it every time, it's still going to take you some time. Some ways that can work [are] in embedded in your standard libraries that you work with. If you have a library that is commonly used to communicate between services, you want to embed that tracing information or extra information there, so it will always be there. This will kind of automate a lot of the work for you. That's just a matter of what type of tool do you use. If you use X-Ray you're still going have to do some kind of manual work. And it's fine, at first. The problem is when you suddenly grow from 100 functions to 1000 functions — that's where you're going to be probably a little bit annoyed or even lost, because it's going to be just a lot of work and doesn't seem like something that really scales. Anything manual doesn't really scale. This is why you use serverless, because you don't want to scale service manually.
ON APPSYNC DATA OWNERSHIP...
Episode #3: Marcia Villalba
Asking about what service owns the data when using AppSync...
@36:20
Marcia: Well, then, it's the question on who owns the data, and that's something, at least with AppSync, I'm still trying to figure out how to really architect my application, my graph qualifications, because I've been using GraphQL with microservices, and usually I do the filtering in the microservice because the microservice knows the data, knows who can see it, and I don't want to leak that information out. But with AppSync, at least applications and have been building, they are mostly contained into Dynamo tables and Lambdas. So I think when I'm coding this that AppSync is the owner of this data and, then I do the filtering in the resolvers. So I think it's always a question of who owns the data and who is able —where is the level that you w
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