How to connect to other testnets?

[leotianlizhan]

Is there a way to make a Rinkeby testnet provider?

[ricmoo]

Currently only Ropsten and Mainnet are part of the getDefaultProvider function, but for now you can use:

// Rinkeby Provider
var provider = new ethers.providers.JsonRpcProvider('https://rinkeby.infura.io', true, 4);

I will try to get proper Rinkeby/Kovan support added today/tomorrow. I have already added it to ethers.objc, and it was pretty painless, since the hostname and chain ID are the only things that needs to change. The bulk of time is adding test cases and updating the documentation.