chore(pricefeed) Add morpho guide (#622)

* chore(pricefeed) Add morpho guide

* update

* update

Author: aditya520

pages/price-feeds/_meta.json

@@ -27,6 +27,7 @@
   "fetch-price-updates": "Fetch Price Updates",
   "schedule-price-updates": "Schedule Price Updates",
   "migrate-an-app-to-pyth": "Migrate an App to Pyth",
+  "use-pyth-for-morpho": "Use Pyth for Morpho Markets",
   "publish-data": "Publish Data",
   "troubleshoot": "Troubleshoot Errors",
 

pages/price-feeds/use-pyth-for-morpho.mdx

@@ -0,0 +1,52 @@
+import { Steps } from "nextra/components";
+
+# How to use Pyth for Morpho Markets
+
+This guide will show how you can leverage Pyth real time price data to power Morpho markets.
+
+At the time of writing, Morpho supports an [oracle interface](https://github.com/morpho-org/morpho-blue-oracles/tree/main/src) similar to [ChainlinkAggregatorV3Interface](https://github.com/smartcontractkit/chainlink/blob/develop/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol).
+We need to wrap the Pyth oracle with this interface to use it with Morpho.
+
+There are three steps to use Pyth price feeds for Morpho markets:
+
+1. Deploy the [`PythAggregatorV3`](https://github.com/pyth-network/pyth-crosschain/blob/main/target_chains/ethereum/sdk/solidity/PythAggregatorV3.sol) contract to provide a Chainlink-compatible feed interface.
+2. Run the price pusher or scheduler.
+3. Deploy the Morpho oracle contract.
+
+<Steps>
+
+### Deploy the `PythAggregatorV3` contract
+
+Pyth provides a wrapper called `PythAggregatorV3` that implements the ChainlinkAggregatorV3Interface.
+This wrapper allows you to use Pyth price feeds with Morpho markets.
+[Migrate from Chainlink to Pyth](./migrate-an-app-to-pyth/chainlink.md) explains how to deploy the `PythAggregatorV3` contract.
+
+You can use the forge [script](https://github.com/pyth-network/pyth-examples/blob/main/price_feeds/evm/chainlink_migration/script/PythAggregatorV3Deployment.s.sol) from the [pyth-examples](https://github.com/pyth-network/pyth-examples/tree/main/price_feeds/evm/chainlink_migration) directory to deploy the `PythAggregatorV3` contract.
+
+```bash copy
+forge script script/PythAggregatorV3Deployment.s.sol --rpc-url $RPC_URL --broadcast --verify
+```
+
+This script will deploy the `PythAggregatorV3` contract and verify it on the target chain.
+You have to run the script for both `BASE` and `QUOTE` price feeds.
+
+### Run the price pusher or scheduler
+
+As a pull oracle, Pyth's users are typically responsible for updating the state of on-chain feeds.
+Please see [What is a Pull Oracle?](/price-feeds/pull-updates) to learn more about pull updates.
+
+If you are using the `PythAggregatorV3` contract, you must push price updates to the contract at regular intervals.
+The Pyth Data Association sponsors regular on-chain updates for some price feeds.
+See [Sponsored Feeds](./sponsored-feeds.mdx) for the current list of feeds and their update parameters.
+
+If you don't find relevant price IDs in the [Sponsored Feeds](./sponsored-feeds.mdx) list, you can run the scheduler/price pusher for the price feed you need.
+
+Please see [Schedule Price Updates](./schedule-price-updates.mdx) for more information on how to schedule price updates.
+
+### Deploy the Morpho oracle contract
+
+After deploying the `PythAggregatorV3` contract and scheduling price updates, you can deploy the Morpho oracle contract with the address of the `PythAggregatorV3` contract deployed in the first step.
+
+Please refer to the [Morpho documentation](https://docs.morpho.org/morpho/tutorials/deploy-an-oracle/) for more information on how to deploy the Morpho oracle contract.
+
+</Steps>