tzJacky – Medium

Apr 18, 2021

SwiftUI: how to send local notifications

This post shows you how to send local notifications. What’s in a local notification? The local notification includes two main parts: Content: the content of a notification. It includes title, body, user info, etc. Trigger: when to send a notification. It can be time, calendar, and location triggers. After that, you wrap these two parts…

Swiftui

3 min read

Swiftui

3 min read

Apr 13, 2021

A short introduction about Raft: a distributed consensus algorithm

What is a distributed consensus algorithm? In a distributed system, there are many nodes in one cluster. We need to have an algorithm to ensure a consensus of data among those nodes or reach an agreement on a proposal. The algorithm is called a distributed consensus algorithm. What is Raft? Raft is an understandable distributed consensus algorithm that is…

Raft

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Raft

3 min read

Apr 4, 2021

Use Github as your storage

Last time we talked about Use Azure File Share to back up your data, and this time I’m going to share how to use Github as your storage by leveraging the Github content APIs. Prerequisites A Github repository A Github token Go lang With the Github contents APIs, you can download…

Storage

2 min read

Storage

2 min read

Mar 30, 2021

Use Azure File Share to back up your data

As an alternative to Google Drive/One Drive/Dropbox, we can use Azure storage to back up our personal data on Windows or on macOS. This article shows how to use Azure Files, a Microsoft cloud file system, on Windows and macOS in a few steps. …

Azure

3 min read

Azure

3 min read

Dec 30, 2018

Java Annotations in 10 minutes

In this tutorial, I’m trying to give a simple introduction to Java Annotations with less words and simple examples. In 10 minutes, you’ll learn what is Annotations, how to use Annotations, and how to create custom Annotations. Annotations, a form of metadata, like tags, alternative to configuration files, provide extra…

Java

3 min read

Java

3 min read