My FixedFloat API and Python Integration Experience

Today is . I’ve been working with cryptocurrency exchanges and APIs for a while now, and recently I delved into the FixedFloat API. I wanted to share my experience, specifically focusing on how I integrated it with Python. I’m calling myself Anya Petrova for the sake of this article, and I’ll detail my process from initial setup to actually executing trades.

What is FixedFloat and Why I Chose It?

FixedFloat, as I understand it, is a service that allows you to exchange cryptocurrencies. What initially attracted me was its focus on fixed exchange rates, which is crucial for building reliable trading bots or applications where predictable costs are essential. I was tired of dealing with fluctuating rates that could eat into profits unexpectedly. I needed something stable, and FixedFloat seemed to offer that.

Setting Up the Environment and the Python Wrapper

I started by setting up my Python environment. I’m using Python 3.11, but I believe it works well with earlier versions too, as I read about backports to 2.7.0. The first thing I did was search for a Python wrapper for the FixedFloat API. Luckily, one exists! I found it on a GitHub repository (I won’t link directly, as links can become outdated, but a quick search for “fixedfloat python” will lead you to it).

I installed it using pip:

pip install fixedfloat

The installation was straightforward. I did encounter a minor issue with dependencies initially – a missing version of `requests` – but `pip` resolved it quickly with an upgrade.

My First Interaction: Getting Exchange Rates

I wanted to test the API immediately. I started with a simple request to get the exchange rates. Here’s the code I used:

from fixedfloat.fixedfloat import FixedFloat


api = FixedFloat

try:
 rates = api.get_rates
 print(rates)
except Exception as e:
 print(f"Error getting rates: {e}")

This code snippet initializes the FixedFloat object and then calls the `get_rates` method. The output was a JSON object containing the exchange rates for various cryptocurrencies. I was pleased to see the data was well-structured and easy to parse. I spent some time examining the rates to understand the available pairs and their corresponding values.

Creating an Order: My First Trade

The real test, of course, was creating an order. I decided to exchange a small amount of Bitcoin (BTC) for Litecoin (LTC). Here’s the code I used to create the order:

from fixedfloat.fixedfloat import FixedFloat

api = FixedFloat

try:
 order = api.create_order(
 from_currency="BTC",
 to_currency="LTC",
 amount=0.001 # Small amount for testing
 )
 print(order)
except Exception as e:
 print(f"Error creating order: {e}")

I carefully reviewed the documentation to ensure I was providing the correct parameters. The `create_order` method takes the source currency, destination currency, and the amount to exchange. I started with a very small amount (0.001 BTC) to minimize risk during testing. The API returned an order object with details like the order ID, estimated amount, and status. I checked my FixedFloat account, and the order was indeed created and processed successfully!

Dealing with Floating Point Precision

I did run into a small issue related to floating-point precision. Sometimes, the amounts returned by the API weren’t exactly as expected due to the inherent limitations of floating-point numbers. I remembered reading about this and the recommendation to use the `round` function. I implemented this in my code to ensure accurate calculations:

amount = round(api.get_balance("BTC"), 8) # Round to 8 decimal places

Rounding to an appropriate number of decimal places solved the problem and ensured that my calculations were accurate.

Final Thoughts

Overall, my experience with the FixedFloat API and the Python wrapper has been positive. The API is well-documented, the wrapper is easy to use, and the fixed exchange rates provide the stability I was looking for. I’m now confident in using this API to build more complex trading applications. I’m Anya Petrova, and I hope my experience helps you on your journey with FixedFloat!