How to use

ProcessEnv

function

in

1/process

factory.addResource('data-sources', `${tokenName}-token`)
   .withAttributes({
    'source-type': '@cardstack/ethereum',
    params: {
     jsonRpcUrls: process.env.JSON_RPC_URLS.split(',').map(i => i.trim()),
     contract: {
      abi: abi,
      address: address,
      eventContentTriggers: {
       Transfer: [`${tokenName}-token-balance-ofs`],
      }
     },
    },
   });

'source-type': '@cardstack/ethereum',
params: {
 jsonRpcUrls: process.env.JSON_RPC_URLS.split(',').map(i => i.trim()),
 addressIndexing: {
  trackedAddressContentType: 'assets',