🐙 Minimal, elegant, fast, async Kraken exchange REST API client | Written in Rust

Description

polipo library aims to interface your software with the Kraken exchange REST API in no time.

Prerequisites

The Kraken exchange allows REST API interaction with both public and private data.

Only for the private one, you need to issue an API-Key and an API-Secret to the polipo library, in order to generate authentication strings for signed requests.

If you are not familiar with, please have a look at API basics documentation for a general overview, or at Generate API keys document.

Implementation

Add this to your Cargo.toml:

[dependencies]
polipo = {version = 0.2.5}

and then add this to your code:

use polipo;

Methods

polipo::print_crate_info();

Description: prints crate information (name, description, version, author and repository).

polipo::set_kraken_api_credentials(api_key: String, api_secret: String);

Description: sets Kraken API credentials for private data access.

Required:

• api_key: String
• api_secret: String

polipo::get_kraken_api_response(method: String, url_encoded_body: String).await;

Description: performs public or private requests, according to issued method and url_encoded_body data.

Required:

• method: String (eg: "public" or "private")
• url_encoded_body: String (eg: "pair=ethusd&since=1574067140000000000")

Output: any response is in stringified JSON format (parse accordingly with the outcome shape).

Example

The example below shows how easy is to implement polipo from zero knowledge.

use polipo;

async fn query(method: &str, url_encoded_body: &str) -> String {
    polipo::get_kraken_api_response(method.to_string(), url_encoded_body.to_string()).await
}

#[tokio::main]
async fn main() {
    
    // printing crate information
    polipo::print_crate_info();

    // performing some queries on public data
    println!("public/Assets: {}", query("Assets", "").await);
    println!("public/Ticker: {}", query("Ticker", "pair=xdgeur").await);

    // issuing credentials enables private data requests
    polipo::set_kraken_api_credentials(
        "YOUR_KRAKEN_API_KEY_HERE".to_string(),
        "YOUR_KRAKEN_API_SECRET".to_string(),
    );

    // performing some queries on private data
    println!("private/Balance: {}", query("Balance", "").await);
    println!("private/TradeBalance: {}", query("TradeBalance","asset=ada").await);
    println!("private/Trades: {}", query("Trades", "pair=ethusd&since=1574067140000000000").await);
}

Disclaimer

This software comes without any kind of warranties.

I will not be liable for any damages related to the use or the misuse of this software.

You are the sole responsible.