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Oliver Jumpertz

@oliverjumpertz

30 May

AWS Lambda added container support some time ago.

We're going to look into what this offer actually includes and how we could build a containerized Lambda function ourselves. 👨🏻‍🏫

Start your IDEs and open your AWS consoles because we're going in!

🧵👇🏻

1️⃣ AWS Lambda Previous To Container Image Support

Until recently, AWS Lambda only allowed you to write some code and upload a zip archive containing all files necessary to run your function.

Some frameworks eased up this process, but that's how it went.

Lambda also imposed some pretty strict limits, especially the 50MB default deployment size limit.

You could technically circumvent this limit by pulling more deployment dependencies from S3 or issuing an AWS Service Limits support request. But this wasn't the most...

Read 32 tweets

Oliver Jumpertz

@oliverjumpertz

29 May

I love AWS Lambda. It's so easy to get a function up and running while AWS handles everything other than the code for you.

But where is your code actually executed? How does AWS do it?

Well, I took a deeper look and this is what Lambda's foundation is!

🧵👇🏻

1️⃣ Thinking about Lambda

We know that we can write a script that looks like below and then upload it to AWS while they take care of everything else.

And from simply looking at the code, it doesn't look like the usual API method we'd implement in Express.

We're exporting a function, so something else must take our code, import it, and handle everything else. 🤔

Conclusion number one:
Something must run our code.

Read 28 tweets

Oliver Jumpertz

@oliverjumpertz

26 May

There are alternatives out there but Git is by far the most used version control management tool which makes it essential for most software developers.

This justifies taking a look at _some_ of the most essential git operations you will need as a developer!

🧵👇🏻

1️⃣ Create A New Repository

This is the most basic command you'll need. When you start a repository locally, your start with git init.

2️⃣ Clone A Repository

You can clone a remote repository to get a local copy of it. Your local repository is connected to the remote one, so you can pull in changes and push yours to it

Read 15 tweets

Oliver Jumpertz

@oliverjumpertz

25 May

I wanted to quickly share my perspective as an interviewer when it comes to portfolio projects.

I see many people thinking way too long about what to build, which quickly becomes an issue for them.

They spend way longer thinking than actually building.

👇🏻

I'd rather see the same ToDo app over and over again, well-executed with everything I'd like such a project to have, than twenty exotic apps that you could well have started your own company with.

I don't know whether I'm a minority here, but as a developer, you are not ...

...a product designer. Your day job won't be to come up with new ideas. It's, of course, highly appreciated if you supply your ideas for the product we might be working on, but never mandatory.

So, what I try to say is: Spend more time executing and building.

Read 4 tweets

Oliver Jumpertz

@oliverjumpertz

23 May

If you want to become a Web 3.0 developer, a structured approach can leverage your learning by a lot.

Let me give you a roadmap that will definitely lead you towards your goal!

🧵👇🏻

0️⃣ Prerequisites

You should know JavaScript and web development in general.

If you don't, you should take a step back at this point and learn about web development first.

There are so many awesome courses and tutorials out there. You won't have a hard time finding good ones.

1️⃣ Learn The Basics Of Blockchain

You need to know what you work with. Blockchains are an incredible piece of technology, but they also aren't trivial to learn.

You'll have to put some time into it to understand what you will later build on.

Read 22 tweets

Oliver Jumpertz

@oliverjumpertz

22 May

If you want to get hired, become an expert in one thing first before you try to learn everything across the board.

There must be a reason someone wants to work with you or you to work for them. Someone needs to have a demand for your expertise.

1/4

The thing is that "expertise" or "being an expert" is often misunderstood.

It doesn't mean knowing everything in and out. It means that you have a level of knowledge in something that helps you to solve problems.

2/4

People need those problems solved, and they will happily pay you to do it for them.

If you can do this with some HTML and CSS knowledge and build what they need, you are indeed an expert.

3/4

Read 4 tweets

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