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Getting Read Access to Contracts

Our contracts are read-protected by a whitelist, meaning you won't be able to read them on-chain without your address being added to the whitelist.

info

On Testnet, the SelfKisser contract allows users to whitelist themselves, whimsically termed 'kiss' themselves.

On Mainnet, to get access to production Oracles, please open a ticket on Discord via the πŸ†˜ο½œsupport channel.

Whitelisting Yourself on Testnet and Reading from Smart Contracts

Option 1: Using the CLI with cast​

Whitelisting Using the CLI​

Cast is a command-line interface (CLI) tool developed by the Foundry team to streamline interactions with Ethereum and other EVM-based chains. Whether you're making smart contract calls, sending transactions, or retrieving chain data, Cast can help you with that.

$ cast send 0x0dcc19657007713483a5ca76e6a7bbe5f56ea37d "selfKiss(address)()" <oracle address you want you use> --rpc-url $rpc

This will whitelist the address that sends the request. Alternatively, when you want to whitelist a different address than the one sending the request, you can use:

$ cast send 0x0dcc19657007713483a5ca76e6a7bbe5f56ea37d "selfKiss(address, address)()" <oracle address you want you use> <contract address to be whitelisted> --rpc-url $rpc

0x0dcc19657007713483a5ca76e6a7bbe5f56ea37d is the SelfKisser contract address.

If you are looking for an Oracle address to quickly test out, feel free to use: Chronicle_ETH_USD_3 0xdd6D76262Fd7BdDe428dcfCd94386EbAe0151603.

You can then verify your whitelist status by running:

$ cast call <oracle address> "tolled(address)(bool)" <your address> --rpc-url $rpc

A response of true confirms your whitelisted status.

Reading from Smart Contracts using the CLI​

Once you are whitelisted, interacting with the oracle is easy. The read() function returns a uint value representing the data you are trying to get:

$ cast call 0xc8A1F9461115EF3C1E84Da6515A88Ea49CA97660 "read()(uint)" --rpc-url $rpc

Response: 1656870000000000045440

Option 2: Using Etherscan​

Whitelisting Using Etherscan​

If you do not want to use the CLI, you can whitelist yourself directly on Etherscan.

  1. Navigate to the SelfKisser contract address on Etherscan: 0x0Dcc19657007713483A5cA76e6A7bbe5f56EA37d

  2. Click on the Contract tab and then on Write Contract

  3. You'll have to hit the Connect to Web3 button to connect your wallet.

Example of Connect to Web3 button

  1. Scroll down to the selfKiss() function and enter the Oracle address you wish to interact with in the oracle (address) field. Then, click Write. You will see that there are two selfKiss() functions (overloads). One of them takes two parameters (oracle (address), who (address)), and the other only one parameter (oracle (address)).

    • When you want to whitelist your own address (msg.sender), you can use selfKiss(address oracle).
    • In contrast, when you need to specify a different address to perform the whitelist on, you should use selfKiss(address oracle, address who).
tip

Make sure you have enough native tokens of the network where you want to use the Oracle to cover the gas for your request.

Make sure you are connected to the correct network corresponding to the contract you are interacting with.

Checking if Your Address Was Successfully Whitelisted/Kissed on Etherscan​

In the contract that you wan to read, go to the Read Contract tab and locate the tolled function. Enter your wallet address in the who (address) field. Hit Query. The data returned should look like this:

Tolled

Once you verify that you are whitelisted, you are ready to read from smart contracts.