TL;DR. golang.org/x/net/idna.Lookup.ToASCII runs UTS-46 NFKC mapping 0-9. A pre-IDNA net.ParseIP check rejects the NO_PROXY lists, TLS-SNI routers, and cookie-domain validators that TrimRight + ParseAddr golang.org/x/net/http/httpproxy, the canonical safe pattern, and two I ran into this one while writing a Go HTTP client for a private project. I idna.Lookup.ToASCII canonicalising the host The sha
Some time ago, I was building a chat application using AWS Websocket API gateway. Things were going smoothly. I created a WebSocket API Gateway, added $connect, $disconnect, and sendMessage/addGroup routes. From the frontend (React) side, everything was fire-and-forget. You send a message, and the onMessageHandler takes care of it 💪🏼 But then a new requirement of uploading files using S3 signed
Best Crypto Trading Bot API in 2026: Binance, CoinGecko, CoinGlass, and Regime Compared Building a crypto trading bot in 2026 means choosing from dozens of APIs. Some give you raw market data. Some give you derivatives analytics. Very few tell you whether you should actually be trading right now. This guide compares the four APIs that matter most for bot builders: Binance, CoinGecko, CoinGlass,