About the Bounty

Your Mission:

The Pyth Solana Receiver is the main program to post Pyth price updates onto Solana. This program takes in a verifiable price update and posts it onto an account with struct PriceUpdateV2. Any account owned by the Pyth Solana Receiver is guaranteed to be a valid price update, that other programs can consume.

The problem is it’s hard to craft verifiable price updates on localnet so that consumer protocols can test their programs. This is because verifiable price updates are complicated and include merkle proofs and signatures.

One solution to this can be creating a stub Pyth Solana Receiver. This is a program that would get deployed on localnet at the same address as Pyth Solana Receiver. However, it doesn’t need to verify price updates to create PriceUpdateV2, instead anyone can call the program with the price update parameters they want (price, conf, exponent, feed_id, publish_time, prev_publish_time) and it will create a PriceUpdateV2 with those parameters.

This makes it easy for developers to test their protocol consuming PriceUpdateV2 accounts since they can create as many PriceUpdateV2 accounts as they want in localnet, with their desired parameters.

Implementation Suggestion

The source code of the Pyth Solana Receiver is here https://github.com/pyth-network/pyth-crosschain/tree/main/target_chains/solana . You should add your testing stub here. Please ensure that external developers can easily import your testing stub as a Cargo dependency.

A similar testing stub exists for EVM contracts. You may wish to consult its source code for inspiration: https://github.com/pyth-network/pyth-crosschain/blob/main/target_chains/ethereum/sdk/solidity/MockPyth.sol

About:

The Pyth Network is a first-party financial data oracle network that delivers on-demand, low-latency price data for over 500 assets on Solana and over 50 other chains. As of today, there are about $5B in Total Value Secured by the Pyth Price Feeds and the latter has facilitated more than $400B in total trading volume across since inception.

Most oracles today are push oracles where the oracle operator is responsible for submitting price updates to the blockchain. Pyth is different: it is a pull oracle where anyone can permissionlessly update the on-chain price.

Please note that the Pyth Pull Oracle has only been recently deployed on Solana mainnet — you can find the documentation here.

Submission Requirements:

• A pull request containing the implementation of both methods and the unit tests submitted via Superteam website.

Grading:

• Douro Labs engineers (Pyth Network contributors) will review all codes submitted within 5 days of the submission deadline.

• The winner of this bounty will be selected based on how elegant and secure is the code

Bounty Prizes:

• The developer with the best/selected code will be rewarded with 1,000 PYTH

Resources

• Explore Pyth

• Documentation

• Best Practices

• How Pull Oracles Work

• Pythnet Appchain

• Pyth on EVM

• Discord

• Telegram

Terms & Disclaimer:

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