Uniswap on Testnet

[nitika-goel]

Hi,
Great work @Uniswap! Tried writing a mail but did not get a response there. Hence, trying to reach out here.

We are interested in integrating Uniswap for our project Nexus Mutual. Just 2 quick questions here:

1. Which testnet are you guys on?
2. We are interested in an exchange between ETH and DAI and vice versa. What is the best way to implement this?

[rossbulat]

Hi Nitika,

To answer your questions:

1. The front end app can be run on Rinkeby. But you can also redeploy the contracts using Ganache or other testnet tools too.

I have tested both swaps and liquidity functions using Rinkeby. Just fork https://github.com/Uniswap/uniswap-frontend and run it with yarn start:rinkeby.

2. Calling the createExchange method from the Factory contract.

[BlinkyStitt]

@rossbulat , can you provide more detail on how to compile and deploy the contracts to ganache?

[haydenadams]

@wysenynja my testnet deploy steps were:

1. Install uniswap as specified in the README. Make sure to switch to the Vyper compiler version specified.
2. use vyper uniswap_factory.vy to get bytecode and vyper -f abi uniswap_factory.vy to get the ABI. Do the same for uniswap_exchange.vy
3. Deploy both contracts separately from their bytecode using https://mycrypto.com/contracts/deploy
4. Use factory ABI (step 2) + factory address (step 3) and https://mycrypto.com/contracts/interact to open an interface to the uniswap factory
5. call initializeFactory(templateAddress) and pass in the address of the deployed uniswap_exchange.vy contract (step 2)

[bboynam99]

Hello, in step 5,
when i choose initializeFactory(templateAddress)
and paste exchange deploy address, and about Value, what i should input in Value??

[haydenadams]

@bboynam99

leave it at 0

[bboynam99]

thank you

[bboynam99]

@haydenadams
i don't understand which address in step 4 and step 5,
4.Use factory ABI (step 2) + factory address (step 3) and https://mycrypto.com/contracts/interact to open an interface to the uniswap factory
==> [factory address] means the [factory contract address] or [factory address] use to deploy contract?
5.call initializeFactory(templateAddress) and pass in the address of the deployed uniswap_exchange.vy contract (step 2)
==>what is [address of the deployed]? the [exchange contract address] or [exchange address]?

[haydenadams]

@bboynam99

4. factory contract address
5. exchange contract address

[bboynam99]

@haydenadams
i will replace with my contracts here in addesses.js right?

const MAIN = { factoryAddress: '0xc0a47dFe034B400B47bDaD5FecDa2621de6c4d95', exchangeAddresses: { addresses: [ ['BNB', '0x255e60c9d597dCAA66006A904eD36424F7B26286'], ['DAI', '0x09cabEC1eAd1c0Ba254B09efb3EE13841712bE14'], ['KNC', '0x49c4f9bc14884f6210F28342ceD592A633801a8b'], ...

if it is, i wondering why so many exchange contract addresses for each tokens like that? is it ok if i use same 1 exchange contract address for those tokens??

[shakeib98]

https://github.com/shakeib98/uniswap-exchange-setup

This is the script to setup uniswap on testnet. :)