Thread by @marcfbe

You can run #ABAP applications in your browser 🤯

No #SAP system required ❗

Any questions, @SAP @SAPdevs @SAPcommunity ❓

Yeah, I thought so... You have your doubts 🤔 💭

We know. We surely must have a big server and an SAP Kernel 🖥️

Well... no 🚫

Here's how it works 🧵

TLDR: Our friend @LarsHvam has coded a #magic transpiler that takes #ABAP code as input and turns it into JavaScript. And that script runs in your browser. Viola!

There's a lot going on behind the scenes...

1.

#abaplint checks your code

There are 142 rules and you can use it for your open source projects, too

That by itself is impressive 😮

2.

If your code is well, #abaplint creates a syntax tree 🌳 which becomes the foundation for the next step

There's so much more it offers

Open the link in another window to check it out later

abaplint.org

3.

#ABAP isn't just "language". It's a platform that includes a lot of coded features (like libraries in other languages).

For example, running ABAP unit tests requires class cl_abap_unit_assert 🧪

This is where #openabap comes into play

github.com/open-abap/open…

4.

The #transpiler puts all the pieces together:

ABAP > lint > js + open-abap > run 🏃

OK, still skeptical?

#AprilFools ☠️

Why are you still here? 🤔

I hear you

You want proof

Alright, grab a drink and let's give it a try, together 🍹

#Wordle anyone? 💬

My wife 👩 has a better average than me.
I need help 🆘

@hugo_de_groot and his #ABAP Wordle Assistant to the rescue

It does wonders, #believeme

But it needs an SAP system...

github.com/hdegroot/zword…

Let's see if we can make this run in our browser 🖥️

No SAP system, I promise

5.

Ready? Start your engine 🏎️

Open transpiler.abaplint.org

6.

ABAP on the left ←

Transpiled JS in the middle

Output on the right →

Greeted by a friendly "hello" 👋

Nah, that's fake

#AprilFools 💣

I dare you to change the code 🎲

See, I told you it works 💫

Side note:

🚧 Seriously, this is mind blowing. Please consider that it's relatively new. Not everything is perfect and there are limits (i.e. no DDIC). Report bugs on GitHub. @LarsHvam will do his best to fix them. Or contribute yourself if you are able 🚧

This will grow and be unbelievable, IMHO 🚀

7.

Let's run an #ABAP app in the browser

Back to the Wordle Assistant

I adjusted it slightly to work in the transpiler. Still 💯 ABAP

Grab the code from GitHub

wordle.marcf.be

8.

Clear the window on the left ←

Paste the zwordle.abap code

Boom 💥

It already runs!

9.

Scroll to the end of the code

You find the method call and a few "letter" parameters

Take a Wordle after a guess or two 🧩

Plug your black ⬛, orange 🟧, and green 🟩 letters into the parameters

Watch the results change on the right →

10.

You will find the word with the highest probability to match on the top of the list 📜

Some words are pretty rare so I skip those

Picking something from the top 10 is the way to go 🔝

#awesome

PRO Tip 1️⃣

To avoid the real-time updates after each keystroke, compose the method call with parameters in a separate editor.

Then cut & paste it into the browser.

PRO Tip 2️⃣

If you don't enter anything for a letter place, all letters except the black ones will be allowed.

Fine-tune a letter parameter by using 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' minus all black AND minus all orange letters that occurred in that place.

That's it!

We have a winner 🏆

1100 lines of #ABAP code running in YOUR browser

Happy Weekend, Everyone 🏝️

#AprilGenius 🧠

I hope you've found this thread entertaining 🎈

Follow me @marcfbe for more

Like/Retweet the first tweet below if you can:

https://twitter.com/marcfbe/status/1509908472132894725