truffle-interface-adapter/lib/fabric-evm-overloads.ts

A library that provides an adapter layer for Truffle to interace with different types of networks/ledgers.

import { Web3Shim } from "./web3-shim";

export const FabricEvmDefinition = {
  async initNetworkType (web3: Web3Shim) {
    // web3 expects getId to return a hexString convertible to a number
    // for fabric-evm we ignore the hexToNumber output formatter
    overrides.getId(web3);
  }
}

const overrides = {
// The ts-ignores are ignoring the checks that are
// saying that web3.eth.net.getId is a function and doesn't
// have a `method` property, which it does
  "getId": (web3: Web3Shim) => {
  // @ts-ignore
  const _oldGetIdFormatter = web3.eth.net.getId.method.outputFormatter;
  // @ts-ignore
  web3.eth.net.getId.method.outputFormatter = (hexId: any) => {
    // chaincode-fabric-evm currently returns a "fabric-evm" string
    // instead of a hex networkID. Instead of trying to decode the hexToNumber,
    // let's just accept `fabric-evm` as a valid networkID for now.
    return hexId;
  };
  }
}