ganache EthereumProvider typescript error

[zjiekai]

Here is my main.ts script:

import Ganache, {Ethereum, EthereumProvider, ProviderOptions} from "ganache";

// https://github.com/trufflesuite/ganache/pull/2527
async function getLatestBlock(provider: EthereumProvider): Promise<Ethereum.Block> {
  return await provider.request({method: "eth_getBlockByNumber", params: ["latest"]});
}

async function main() {
  const options: ProviderOptions = {
    fork: { network: "mainnet" }
  };
  const provider: EthereumProvider = Ganache.provider(options);
  const block = await getLatestBlock(provider);
  console.log(block.number);
}

main().then(
  () => { console.log('done'); },
  (err) => { console.log(err); },
);

When run with npx ts-node main.ts it gives errors

/home/zjk/prjs/eth/eth-notes-code/ganache-trace/node_modules/ts-node/src/index.ts:859
    return new TSError(diagnosticText, diagnosticCodes, diagnostics);
           ^
TSError: ⨯ Unable to compile TypeScript:
main.ts:5:3 - error TS2322: Type '{ hash: string; size: string; transactions: string[] | ({ hash: string; type?: string | undefined; nonce: string; blockHash: string; blockNumber: string; transactionIndex: string; from: string; ... 7 more ...; s: string; } | { ...; } | { ...; } | { ...; })[]; ... 17 more ...; baseFeePerGas?: string | undefined; } | ...' is not assignable to type '{ hash: string; size: string; transactions: string[] | ({ hash: string; type?: string | undefined; nonce: string; blockHash: string; blockNumber: string; transactionIndex: string; from: string; ... 7 more ...; s: string; } | { ...; } | { ...; } | { ...; })[]; ... 17 more ...; baseFeePerGas?: string | undefined; }'.
  Type 'null' is not assignable to type '{ hash: string; size: string; transactions: string[] | ({ hash: string; type?: string | undefined; nonce: string; blockHash: string; blockNumber: string; transactionIndex: string; from: string; ... 7 more ...; s: string; } | { ...; } | { ...; } | { ...; })[]; ... 17 more ...; baseFeePerGas?: string | undefined; }'.

5   return await provider.request({method: "eth_getBlockByNumber", params: ["latest"]});
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
main.ts:12:9 - error TS2322: Type 'EthereumProvider | FilecoinProvider_2<JsonRpcRequest<FilecoinApi, "xrpc.ch.close" | "initialize" | "stop" | "Filecoin.Version" | "Filecoin.ID" | "Filecoin.ChainGetGenesis" | ... 45 more ... | "Ganache.GetDealById">>' is not assignable to type 'EthereumProvider'.
  Type 'FilecoinProvider_2<JsonRpcRequest<FilecoinApi, "xrpc.ch.close" | "initialize" | "stop" | "Filecoin.Version" | "Filecoin.ID" | "Filecoin.ChainGetGenesis" | "Filecoin.ChainHead" | "Filecoin.ChainNotify" | ... 43 more ... | "Ganache.GetDealById">>' is not assignable to type 'EthereumProvider'.
    Property '#private' in type 'FilecoinProvider_2' refers to a different member that cannot be accessed from within type 'EthereumProvider'.

12   const provider: EthereumProvider = Ganache.provider(options);
           ~~~~~~~~

    at createTSError (/home/zjk/prjs/eth/eth-notes-code/ganache-trace/node_modules/ts-node/src/index.ts:859:12)
    at reportTSError (/home/zjk/prjs/eth/eth-notes-code/ganache-trace/node_modules/ts-node/src/index.ts:863:19)
    at getOutput (/home/zjk/prjs/eth/eth-notes-code/ganache-trace/node_modules/ts-node/src/index.ts:1077:36)
    at Object.compile (/home/zjk/prjs/eth/eth-notes-code/ganache-trace/node_modules/ts-node/src/index.ts:1433:41)
    at Module.m._compile (/home/zjk/prjs/eth/eth-notes-code/ganache-trace/node_modules/ts-node/src/index.ts:1617:30)
    at Module._extensions..js (node:internal/modules/cjs/loader:1157:10)
    at Object.require.extensions.<computed> [as .ts] (/home/zjk/prjs/eth/eth-notes-code/ganache-trace/node_modules/ts-node/src/index.ts:1621:12)
    at Module.load (node:internal/modules/cjs/loader:981:32)
    at Function.Module._load (node:internal/modules/cjs/loader:822:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:77:12) {
  diagnosticCodes: [ 2322, 2322 ]
}

Here is my package.json:

{
  "name": "ganache-trace",
  "version": "1.0.0",
  "main": "index.js",
  "license": "MIT",
  "devDependencies": {
    "@types/node": "^18.7.23",
    "ganache": "^7.4.3",
    "ts-node": "^10.9.1",
    "typescript": "^4.8.3"
  }
}

And where should I put the infura/alchemy RPC URL in the option?

[apdan510]

Hey @zjiekai

In your repo, do you have a file called truffleconfig.js or networkconfig.js? Should be located in the same directory as your package.json Any chance you can share a repo with us?

Thanks!

[zjiekai]

Oh I don't have these config files. All my files are

main.ts  node_modules  package.json  yarn.lock

Should I move the discussion to ganache?