Una función Lambda es un trocito de código que AWS ejecuta cuando hace falta, sin servidor que mantener: el aviso que se manda cada noche, la imagen que se redimensiona al subirla, el formulario que se procesa. Son baratas y útiles, y la consola de AWS las rodea de conceptos (roles de ejecución, capas, desencadenadores, grupos de registros de CloudWatch) que hacen que tocar una línea de código parezca una operación de riesgo.
En Simplio cada función es una tarjeta con su código en un editor, un botón "Probar ahora", los registros de la última ejecución, la memoria y el tiempo máximo, y una URL pública que activas o quitas con un clic y el código del móvil. Se edita código en Python, Node.js y Ruby; en otros lenguajes se ve y se prueba, pero no se modifica. Subir código pide siempre el doble factor.
How it works
You open the function
Code, configuration (memory, maximum time, variables) and the logs of the last run, on the same screen.
You change and test
You edit the code, press "Test now" with whatever input data you like and see the response and the logs immediately. Uploading the new code asks for the code from your phone.
You give it a public URL if you need one
One click and two-factor: AWS assigns it an https address that you can call from anywhere. Another click removes it.
How secure it is
Uploading code asks for two-factor
Always. Changing the code of a function that is in production isn't done with a mistaken click.
The public URL is enabled deliberately
Enabling it asks for the phone code, because a public URL is an open door to the internet. Removing it is just as easy.
Separate permission
Functions is an action of its own; it is granted per person and per account.
The same task, in AWS and in Simplio
| On your own in AWS | In Simplio | |
|---|---|---|
| Change a line and test | Console → Lambda → function → editor → Deploy → Test → configure test event → view in CloudWatch | Edit, "Test now", see result and logs |
| Give it a URL | Configuration → Function URL → create → authentication type → CORS | One click and the phone code |
| See what happened in the last run | CloudWatch → log groups → stream → search | On the card |
Frequently asked questions
Which languages can be edited?
Python, Node.js and Ruby, which are deployed as source code. Functions in other languages or packaged as a container can be viewed and tested, but not edited from Simplio.
Can I schedule it to run every night?
Scheduling is done in AWS (EventBridge) and the relevant guide explains it step by step. From Simplio you view the function, test it and change it.