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Overview

The Boundless Market SDK offers high-level Rust APIs for interacting with the Boundless Market smart contracts, preparing and submitting ZK proofs, and handling relevant offchain data such as images and inputs. Crate Documentation

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Installation

cargo add boundless-market
or add manually to your Cargo.toml: 
[dependencies]
boundless-market = "X.X.X"
where X.X.X is the latest release specified on the Boundless GitHub Release page.

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SDK Workflow Overview

Below is an example of the Boundless end-to-end programmatic workflow:

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1. Initialize Client

use boundless_market::Client;
use alloy::signers::local::LocalSigner;
let client = Client::builder()
    .with_rpc_url(rpc_url)
    .with_private_key(LocalSigner::random())
    .build()
    .await?;

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2. Upload Program and Input

let program_url = client.upload_program(&std::fs::read("guest.bin")?).await?;
let input_url = client.upload_input(&[0x41, 0x42, 0x43]).await?;

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3. Submit Proof Request

let (request_id, expires_at) = client.submit_request_onchain(&request).await?;

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4. Await Fulfillment

let fulfillment = client
    .wait_for_request_fulfillment(request_id, Duration::from_secs(10), expires_at)
    .await?;

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5. Fetch Proof Results

// If not using wait_for_request_fulfillment:
let fulfillment = client.boundless_market.get_request_fulfillment(request_id).await?;

// Advanced: Set-Inclusion Receipt
let (journal, receipt) = client.fetch_set_inclusion_receipt(request_id, [0u8; 32].into()).await?;

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SDK Modules

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client

  • Client: Core struct for transactions, storage, and offchain interaction.

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contracts

  • BoundlessMarketService: Onchain interactions (requests, fulfillments, deposits).
  • SetVerifierService: Manages aggregated proof verifications.
  • Structures: ProofRequest, Offer, Fulfillment.

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input

  • GuestEnv: Environment for the guest, including input (e.g. stdin)

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order_stream_client

  • OrderStreamClient: Submit/fetch orders offchain via WebSocket.

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storage

  • Uploaders: S3, GCS, and Pinata for uploading program and input data.
  • Downloaders: HTTP, S3, GCS, and File for downloading programs and inputs (auto-selected based on URL scheme).

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selector

  • Utilities for tracking/verifying proof types.

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Example: Full Proof Submission

use boundless_market::{
  Client, StorageUploaderConfig,
  contracts::{FulfillmentData, RequestId, Requirements, Predicate, Offer},
  request_builder::OfferParams,
};
use alloy::signers::local::PrivateKeySigner;
use alloy::primitives::U256;
use std::time::Duration;
use url::Url;

async fn proof_submission(
    signer: &PrivateKeySigner,
    rpc_url: Url,
    storage_config: &StorageUploaderConfig,
) -> anyhow::Result<()> {
    let client = Client::builder()
        .with_rpc_url(rpc_url)
        .with_private_key(signer.clone())
        .with_uploader_config(storage_config)
        .await?
        .build()
        .await?;

    // Build the request.
    let request = client.new_request()
        .with_program(std::fs::read("guest.bin")?)
        .with_stdin(42u32.to_le_bytes());

    // Submit the request.
    let (request_id, expires_at) = client.submit(request).await?;

    let fulfillment = client
        .wait_for_request_fulfillment(request_id, Duration::from_secs(10), expires_at)
        .await?;
    println!("FulfillmentData: {:?}, Seal: {:?}", fulfillment.data()?, fulfillment.seal);

    Ok(())
}