Add `getNetworkFromAddress` method

[janniks]

It might make sense to add network mode that determines how addresses are encoded.
This is used in the explorer
Like a getNetworkFromAddress? It would result in Testnet for Devnet/Mocknet addresses, since there's no difference. Is that acceptable?

Issue brought up by @friedger in #1470

[ri-dev-git]

Hi @janniks! can you explain what needs to be done with an example?

[janniks]

Hi, would you like to contribute? ✨

In short I would:
Add a function networkFromAddress(address: string) to the transactions package (packages/transactions/src/utils.ts) which decodes the given address (using c32addressDecode) and compares the version (of the address) to mainnet vs testnet, then returns a new instance of that network.
Add some simple test cases (to utils.test.ts) which cover an address for each network (devnet/mocknet also just use testnet address versions)

pseudo example

const network = networkFromAddress("SP8931298312");
    //^? instance of StacksMainnet()

Although maybe it's better to add other helpers like isMainnet(address) which could be combined easily. 🤷‍♂

[friedger]

How can you differentiate between devnet, testnet, etc when they all use the same address

[janniks]

Exactly, that doesn’t work and why I believe some other method might be better suited. 😕
The network would have the correct version, but shouldn’t be used for broadcast etc.

[ri-dev-git]

hey @janniks! i have implemented it as something like this:

export const networkFromAddress=(address: string): {network:string,address:string} =>{
  try {
    const decode=c32addressDecode(address);
    if(isTestnetAddress(decode)){
      return {
        network:"Testnet",
        address: address
      }
    }else{
      return{
        network:"Testnet",
        address: address
      }
    }
  }
  catch(e){
    return e
  }
}

[janniks]

Hi, maybe we should instead add a new method like isMainnet(address: string) which can easily be combined with others -- let's hold off on the actual implementation and gather some feedback? 🤔

e.g. easy use of isMainnet to create new helpers

const networkFromAddress = (address: string) => (isMainnet(address) ? new StacksMainnet() : new StacksTestnet());

[ri-dev-git]

Yeah ok works!