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Infura support #1

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Infura support #1

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d7a37ba
Update .env.example
eabdelmoneim Sep 2, 2021
620bef9
Update hardhat.config.ts
eabdelmoneim Sep 2, 2021
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2 changes: 2 additions & 0 deletions .env.example
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Original file line number Diff line number Diff line change
Expand Up @@ -2,4 +2,6 @@ TEST_PRIVATE_KEY=

ALCHEMY_KEY=

INFURA_KEY=

ETHERSCAN_API_KEY=
27 changes: 21 additions & 6 deletions hardhat.config.ts
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Expand Up @@ -25,18 +25,33 @@ let testPrivateKey: string = process.env.TEST_PRIVATE_KEY || "";
let alchemyKey: string = process.env.ALCHEMY_KEY || "";
let etherscanKey: string = process.env.ETHERSCAN_API_KEY || "";
let polygonscanKey: string = process.env.POLYGONSCAN_API_KEY || "";
let infuraKey: string = process.env.INFURA_KEY || "";

function createTestnetConfig(network: keyof typeof chainIds): NetworkUserConfig {
if (!alchemyKey) {
throw new Error("Missing ALCHEMY_KEY");

// if not using infura there better be an alchemy key or else fail
if(!infuraKey) {
if (!alchemyKey) {
throw new Error("Either ALCHEMY_KEY or INFURA_KEY must be defined");
}
}

const polygonNetworkName = network === "polygon" ? "mainnet" : "mumbai";

let nodeUrl =
chainIds[network] == 137 || chainIds[network] == 80001
? `https://polygon-${polygonNetworkName}.g.alchemy.com/v2/${alchemyKey}`
: `https://eth-${network}.alchemyapi.io/v2/${alchemyKey}`;
let nodeUrl;

// if polygon network then use appropriate alchemy/infura URL
if(chainIds[network] == 137 || chainIds[network] == 80001) {
if(alchemyKey) {
nodeUrl = `https://polygon-${polygonNetworkName}.g.alchemy.com/v2/${alchemyKey}`;
} else if(infuraKey){
nodeUrl = `https://polygon-${polygonNetworkName}.infura.io/v3/${infuraKey}`;
}
} else if(alchemyKey) {
nodeUrl = `https://eth-${network}.alchemyapi.io/v2/${alchemyKey}`;
} else if(infuraKey){
nodeUrl = `https://${network}.infura.io/v3/${infuraKey}`
};

return {
chainId: chainIds[network],
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