Automatic wallet connect
async function addPolygonTestnetNetwork(){
try {
await ethereum.request({
method: 'wallet_switchEthereumChain',
params: [{ chainId: '0x13881' }], // Hexadecimal version of 80001, prefixed with 0x
});
} catch (error) {
if (error.code === 4902) {
try {
await ethereum.request({
method: 'wallet_addEthereumChain',
params: [{
chainId: '0x13881', // Hexadecimal version of 80001, prefixed with 0x
chainName: "POLYGON Mumbai",
nativeCurrency: {
name: "MATIC",
symbol: "MATIC",
decimals: 18,
},
rpcUrls: ["https://speedy-nodes-nyc.moralis.io/cebf590f4bcd4f12d78ee1d4/polygon/mumbai"],
blockExplorerUrls: ["https://explorer-mumbai.maticvigil.com/"],
iconUrls: [""],
}],
});
} catch (addError){
console.log('Did not add network');
}
}
}
}