@hanchiang

Reverse engineering CoinMarketCap API

Jun 14, 2025 · 3 min read · Earlier, I discussed how to set up a TradingView webhook and send notifications to telegram for stocks. The full workflow looks something like this: Before the market opens, send a telegram notification with stock data from TradingView, VIX Central,...

Stocks notification: Building multi-arch docker image

Aug 11, 2024 · 3 min read · Last year, around the same time, I added a feature in market data notification to scrape the stocks fear greed index from https://edition.cnn.com/markets/fear-and-greed, with selenium and chrome webdriver. Difference in development and production The...

Reverse engineering CryptoPanic REST API

May 28, 2023 · 2 min read · CryptoPanic is a news aggregator website for trending news based on social sentiment. It's a good website for keeping up to date on the latest news, as well as using it as a trading signal. Its compact layout reminds me of hacker news. I was looking ...

Stocks notification: TradingView webhook to telegram

Apr 7, 2023 · 7 min read · At the start of the year, I worked on a telegram bot that sends market data of certain stocks for the previous day's close to a telegram channel. Features Basic info such as closing price, EMA20, difference between closing price and EMA20 Overexten...

Caching docker layers in github actions and retriggering workflow

Nov 1, 2022 · 2 min read · Following my previous post on automating infrastructure provisioning, configuration and application deployment, there are 2 areas that I wanted to improve. Cache docker layers in deploy workflow First, docker layers in the build step of the deploy wo...