pybind11 VS capacitor

I'm investigating using C++ to build a REST server, and would love to know of people's experiences with Crow-- or whether they would recommend something else as a "medium-level" abstraction C++ web server. As background, I started off experimenting with Python/FastAPI, which is great, but there is too much friction to translate from pybind11-exported C++ objects to the format that FastAPI expects, and, of course, there are inherent performance limitations using Python, which could impact scaling up if the project were to be successful.

I have a C++ function computing a large tensor which I would like to return to Python as a NumPy array via pybind11.

This is based on the Google Ink Stroke Modeler C++ library, and using pybind11 to make it available on python.

pybind11 makes it easy to call C++ from Python if you want to mix.

If you've never used Pybind before these pybind tests[1] and this repo[2] have good examples you can crib to get started (in addition to the docs). Once you handle passing/returning/creating the main data types (list, tuple, dict, set, numpy array) the first time, then it's mostly smooth sailing.

Pybind offers a lot of functionality, but core "good parts" I've found useful are (a) use a numpy array in Python and pass it to a C++ method to work on, (b) pass your python data structure to pybind and then do work on it in C++ (some copy overhead), and (c) Make a class/struct in C++ and expose it to Python (so no copying overhead and you can create nice cache-aware structs, etc.).

[1] https://github.com/pybind/pybind11/blob/master/tests/test_py...

I have a python module for which the logic is written in C++ and I use pybind11 to expose the objects and functions to Python.

Reading from Python requires a wrapper, using pybind11 this is fairly done.

Also I can highly recommend starting using C++ to augment your Python code, i.e. find the parts that are slow or undoable in Python and write those in C++ then expose them as Python functions. You can use https://github.com/pybind/pybind11 to call C++ code from Python.

It should also be mentioned that the official VSCode Ionic Plugin is also capable of migrating your existing application. Capacitor v6 now also supports bun as a package manager.

> PWA optionally bundled with some native components for filing the gaps, as in Tauri.

Isn't that essentially Capacitor?

https://capacitorjs.com

Have you experienced slow scrolling issues?

https://github.com/ionic-team/capacitor/issues/4187

Project: Build This Webpage (just this one page, make sure it is responsive (useful on all screen sizes)) => https://capacitorjs.com/

Capacitor

For the longest time, building desktop apps was a daunting task to web developers. That is, until technologies like Electron made creating these apps more approachable to a wider audience. Today, we’ve got a wide array of native applications built with solutions like Electron, Tauri, Capacitor, and many more. While these are great solutions, sometimes configuration can be tricky and the applications we create can become somewhat bloated in terms of memory usage.

The traditional alternative to Electon on mobile platforms is Capacitor (which uses the system webview):

https://capacitorjs.com/

(fka Apache Cordova, fka PhoneGap)

Ionic Framework UI Components are used to build a website and then a mobile application is built using Ionic Capacitor. Ionic UI components are not required but are used for UX. The vue js code presented here will work fine in a separate application.

Welcome to Part Two of this four-part series on building a mobile game using open source technologies. We'll be using Phaser, along with Ionic, Capacitor, and Vue.

Turns out, it's easier than I expected! Thanks to Phaser, along with Ionic, Capacitor, and Vue, I was able to get a mobile game up and running on an iOS device working only a few hours here and there over two weeks.