Factom Rust API Client

Installation

Add to cargo.toml:

[dependencies]
factom = "^2"

Quickstart

use factom::*;
// Get current block height from open node
#[tokio::main]
async fn main() {
  //Create a re-usable client
  let client = Factom::open_node();
  // Call the heights function, handle the request result
  let response = factomd::heights(&client).await.expect("Network Request");
  assert!(response.result.leaderheight > 0);
}

Usage

See the examples folder for common workflows, or use cargo run --example to view all those you can run.

Configuration

// Default settings
// factomd: http://localhost:8088
// factom-walletd: http://localhost:8089
let client = Factom::new();

// Using open node
// factomd: https://api.factomd.net/v2
let client = Factom::open_node();

// Using the tesnet open node
// factomd: https://dev.factomd.net/v2
let client = Factom::testnet_node();

// Using custom node locations
let factomd = "https://api.factomd.net/";
let factom_walletd = "http://192.168.1.42:18089";
let client = Factom::custom_node(factomd, factom_walletd)

Retrieve a Balance

let client = factom::testnet_node();
let testnet_address = "FA2jK2HcLnRdS94dEcU27rF3meoJfpUcZPSinpb7AwQvPRY6RL1Q";
let response = balance::factoid_balance(&client, testnet_address).await.unwrap();
// factoid balance returns factoshis, convert
let factoids = utils::factoshis_to_fct(response.result.balance);
println!("The testnet balance of {} is {} factoids", FCT_PUB, factoids);

Get Entry Data

let client = factom::testnet_node();
let hash = "97c4e7adce9ed277b62adfb9fb7a31ca4778181e49dcdfebca967102dd424fbc";
let response = entry::entry(hash).await.unwrap();
dbg!(response);

Traverse a Chain

 let client = Factom::open_node();
 let chain = "843dbee7a49a9b9510d399759fbce24b1f700268c94508085abce352d70ed1f6";
 // traverse_chain is a utility that returns Vec<Entry>, the number of blocks to
 // parse can be specified, to traverse the entire chain use a depth of 0, here
 // only 1 block,the chainhead itself, will be retrieved.
 let response = utils::traverse_chain(&client, chain, 1).await;
 dbg!(response);

Runtime

This library re-exports the tokio runtime and executor by default, to disable this and use a different runtime modify your cargo.toml with a feature flag:

[dependencies]
factom = {version="^2", default-features=false}

Testing

Most of the functions are covered by the test modules along with all the documentation examples. Beware that running cargo test with nocapture will produce a huge amount of output. For many of the tests to pass you will need to be running factom-walletd, any test transactions or addresses are cleaned up afterward.

See the tests readme for instructions.

Benchmarking

A criterion benching harness is provided, if gnuplot is installed it will also automatically generate plots for any benchmarks run, they can be found at <LIBRARY>/target/criterion/report/index.html. This can be used to test the performance of factomd, factom-walletd, network connections and the library functions themselves.

Fuzzing

A fuzzing suite is provided using the rust implementation of American Fuzzy Lop, with appropriate setup this can be used to fuzz both the Factom rust library along with a simulated Factom network and factom-walletd. See the fuzz folder readme for more information.

Learn

• Accessing the Factom blockchain from different programming languages
• Building simple blockchain game with Factom

Contributions

The Library developed by Kompendium, LLC in partnership with Mitchell Berry, Sergey Bushnyak, Kelecorix, Inc and for the good of the Factom community.

If you're an active user or find it useful we strongly encourage you to support our efforts and ensure long maintenance by contributing a small donation to one of the following cryptocurrency addresses:

• BTC: 39oVXpsgsyW8ZgzsnX3sV7HLdtXWfT96qN
• ETH: 0x9cDBA6bb44772259B3A3fb89cf233A147a720f34
• FCT: FA38cwer93mmPw1HxjScLmK1yF9iJTu5P87T2vdkbuLovm2YXyss