Programming

Poetry is a great build system. And in 2023, I believe, no one should use the pip for a private Python codebase. Getting it right inside Docker is a different issue, however. Consider a simple Flask-based web server as an example Bash 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 # Install poetry $ pip3 install poetry==1.7.1 $ poetry --version Poetry (version 1.7.1) # Create a sample package $ poetry init --python=~3.10 --name=src --description='Flask Hello world' --dependency=Flask@3.0.0 --author='Ashish' --license='Apache 2.0' --no-interaction $ poetry install $ touch README.md $ mkdir src # Create a file src/server.py in your favorite editor $ cat src/server.py from flask import Flask app = Flask(__name__) @app.route("/") def hello_world(): return "<p>Hello, World!</p>" if __name__ == "__main__": app.run() Let’s finish the build process Now, let’s add a simple Dockerfile titled Dockerfile1 ...

I recently added adb-enhanced to the Homebrew package manager . Here are some of my learnings and future tips to smoothen up the process.

Let’s say you want to have two Go packages pkg1 and pkg2 in a monorepo setup. Here’s what a good project structure would look like.

I used to call Toast#show() on the UI thread. Then one day, I received notifications related to an ANR (Application Not Responding) error in one of my Android apps . Java 1 2 3 4 5 6 7 8 9 10 11 at android.os.BinderProxy.transactNative(BinderProxy.java) at android.os.BinderProxy.transact(BinderProxy.java:605) at android.view.accessibility.IAccessibilityManager$Stub$Proxy.addClient(IAccessibilityManager.java:1207) at android.view.accessibility.AccessibilityManager.tryConnectToServiceLocked(AccessibilityManager.java:1804) at android.view.accessibility.AccessibilityManager.(AccessibilityManager.java:606) at android.widget.ToastPresenter.(ToastPresenter.java:138) at android.widget.Toast$TN.(Toast.java:1151) at android.widget.Toast.(Toast.java:259) at android.widget.Toast.makeText(Toast.java:891) at android.widget.Toast.makeText(Toast.java:879) at net.ashishb.androidmusicplayer.util.UiHelper.showToast(UiHelper.java:111) Programmers on StackOverflow are confused about whether it is OK to call Toasts on the background threads. Just like me, they think that Toast must be displayed from the UI thread. Even though there is no reason. ...

There are several ways to deploy Docker images on Microsoft Azure. My favorite one is Azure App Service/Web Application for Containers . This is the closest to Google Cloud Run .

Google released a new version of the Google Auth library. It had a bug that broke Google Login on Android for API 26 and earlier. This impacted my small but popular Music Player app in Google Play. It reveals the kind of problem, I have alluded to in end-to-end testing . The only way to avoid such problems is by end-to-end testing. However, I find all Android testing frameworks to be terrible. ...

Data Loaders allow transparent batching of requests to a data provider (e.g. database). More often than not, this leads to reduced latency and better performance without forcing an explicit batching of requests for the API users, for example, your frontend developers. Many programmers relate data loaders to Graph QL for N+1 query patterns . I believe data loaders are a great idea any time you are building an API backend. Let me illustrate the concept with a simple example. And while I am using Go as an example , data loader implementations are available in many languages .

Generics in Go were added about a year back in Go 1.18. In my experience they are great and they fix one of the biggest roadblocks in terms of writing reusable code in Go. I’ll illustrate that with an example. First, do ensure that you have at least Go 1.18 Bash 1 2 $ go version go version go1.19.1 darwin/amd64 Let’s consider a simple case of implementing a Map function in Go that maps an array (well, a slice) to another array (again, actually, a slice). ...

If you create GitHub Actions via GitHub’s UI by going to the URL of the form `https://github.com///actions/new`, it provides templates for setting up the build. However, the template is broken. There are four problems with the default template

Go language does not have the concept of a class directly. It, however, has a concept of an interface as well as a struct. I’ll illustrate how this can be used to build most of the inheritance constructs that a language like Java or C++ offers.