---
title: "#fx articles | Hashnode"
description: "Explore 1 articles tagged #fx on Hashnode. Tutorials, guides, and how-tos from the community."
url: "https://hashnode.com/tag/fx"
---

Tag

# #fx

1 posts · 0 followers

[Sohag Hasan](https://hashnode.com/@sohag) · [Jul 12](https://hashnode.com/posts/fx-rates-as-live-admin-config/6a5365631bb35bd68bedd1c4)

### [The Exchange Rate Was Hiding in an Environment Variable](https://notes.sohag.pro/fx-rates-as-live-admin-config?utm_source=hashnode&utm_medium=feed)

Every time I wanted to change an FX rate I had to edit a file on the server and restart the app. So I moved rates and markup into a live admin API, and then audited it hard enough to find the bug that quietly undid the whole thing.

9 min read · [notes.sohag.pro](https://notes.sohag.pro/fx-rates-as-live-admin-config?utm_source=hashnode&utm_medium=feed)