RafaelAPB / layerzero-set-oracle-tools

LayerZeroV2 Oracle Setup

This tool sets up the Blockdaemon oracle for an Oapp.

Requirements

This is a Typescript project. Npm as package manager and node. Tested with npm v10.2.4, node 21.5.0.

Getting started

The Blockdaemon DVN currently supports the following chains:

Chain	Endpoint ID	Env variable NETWORK	Oracle Address
Avalanche Fuji (testnet)	40106	fuji	0xe695699B08bdDd9922079332625e5Df265dEfA50
Ethereum Goerli (testnet)	40121	goerli	0xe695699B08bdDd9922079332625e5Df265dEfA50
Polygon Mumbai (testnet)	40109	mumbai	0x3c2269811836af69497E5F486A85D7316753cf62

1. Install node 21.5.0.

2. Install the dependencies with npm install.

3. Copy the environment variables with cp .env.example .env.

4. Populate the variables, including your Blockdaemon API Key (BLOCKDAEMON_API_KEY), the private key that you will be using to sign transactions (PRIVATE_KEY), the address of your LayerZero v2 application (OAPP_ADDRESS) and the network you are operating on (NETWORK). Make sure to choose a supported network, according to the above table.

5. Set the target chain endpoint ID (TARGET_CHAIN_ENDPOINT_ID). Check the endpoints here: https://docs.layerzero.network/contracts/endpoint-addresses. For example,the endpoint ID for Goerli is 40121and for Mumbai is 40109.

6. Set the message library address (MESSAGE_LIB_ADDRESS). Libraries here: https://docs.layerzero.network/contracts/messagelib-addresses. For example, for Goerli, the version 2 (uln302) message library is 0xb3f5e2ae7a0a7c4abc809730d8e5699020f466ef.

7. Run the main script with ts-node main.ts.

FAQ

Which chains does this tool support?

A: This tool supports Blockdaemon-powered oracles, deployed at Fuji, Goerli, and Mumbai.