Building dapps that interoperate between L1s and L2s can be difficult. Let's look at using the Optimism Bridge Truffle Box as a way to make things easier. - web3 truffle
After successfully signing up, the page redirects to the Infura dashboard where we can create a new API key, as shown below.After creating your API key, your project ID will be visible on your dashboard under the API KEY section, as shown below. Copy and keep it somewhere; you will need it later in this tutorial.. We can run the unbox command in any directory of your choice using the following command.Replace with the directory name of your choice.
var Greeter=artifacts.require; /** * Set L2 Greeting * Run this migration on L1 to update the L1 greeting. */ module.exports=async function { console.log; const instance=await Greeter.deployed; const tx=await instance.setGreeting; console.log; console.log; console.log; };contract sends a message in the other direction over the Optimism bridge.
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