57 lines
2.2 KiB
Markdown
57 lines
2.2 KiB
Markdown
# Pyth SDK CW
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This crate exposes utilities to interact with the contract on the CosmWasm ecosystem.
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You can also look at the [example contract](../examples/cw-contract/) which demonstrates how to read price feeds from on-chain CosmWasm applications.
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## Installation
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Add this crate to the dependencies section of your CosmWasm contract's `Cargo.toml` file:
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```
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[dependencies]
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pyth-sdk-cw = "1.0.0"
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```
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## Usage
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Simply import the structs exposed by the crate and use them while interacting with the pyth contract. For example:
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```rust
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// to query Pyth contract
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use pyth_sdk_cw::{
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PriceFeedResponse,
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query_price_feed,
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};
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... {
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let price_feed_response: PriceFeedResponse = query_price_feed(&deps.querier, state.pyth_contract_addr, state.price_feed_id)?;
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let price_feed = price_feed_response.price_feed;
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}
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....
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```
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This snippet returns a `PriceFeed` struct which exposes methods for reading the current price along with other useful functionality.
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See the [Pyth common SDK documentation](https://github.com/pyth-network/pyth-sdk-rs/tree/main/pyth-sdk#pyth-network-common-rust-sdk) for more information
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about this struct.
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The common SDK also provides methods for combining price feeds in several useful ways.
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These methods allow you to derive prices for alternative quote currencies -- for example, to derive the BTC/ETH price from
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the BTC/USD and ETH/USD price feeds -- and to price baskets of currencies.
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## Contracts and Price Feeds
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Pyth is currently available on the following cosmwasm chains:
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### Testnet
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| Network | Contract address |
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| --------- | -------------------------------------------- |
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| Injective | `inj1z60tg0tekdzcasenhuuwq3htjcd5slmgf7gpez` |
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Available price feeds on these networks can be find below:
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### Price Feeds
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| Network | Available Price Feeds |
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| ----------------- | ------------------------------------------------------------------------------------------------------------------------------------ |
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| Injective Testnet | [https://pyth.network/developers/price-feed-ids#injective-testnet](https://pyth.network/developers/price-feed-ids#injective-testnet) |
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