Missing 'networks' in contract build files?

[simondlr]

To load a contract in the dapp, I usually rely on the 'networks' object in the contract's build file. It has worked consistently. However, recently, after a fresh re-install of my code, when deploying a regular contract, it doesn't write the address into the 'networks' object.

I've tried figuring out whether this is a bug, or whether I have incorrect assumptions about the build files? Unsure if whether something I changed stopped it from working? So, uncertain whether this is a bug or working-as-intended.

Is this Truffle? (which I'm not using).
Should it be happening without Truffle?

[simondlr]

Here's some additional information:

If I start with deploying it as 'ugpradeable', it does create the 'networks' object. Subsequently, deploying a regular version of the same contract overwrites this 'networks' object with the new deployment. BUT, if deploying a regular contract from scratch, it does not create the 'networks' object.

eg, assume contract 'A':

1. Deploy 'regular' A.

-> No 'networks' object in build file (contracts/build/A.json).

1. Deploy 'upgradeable' A. (creates 'networks' object for the proxy in build file).
2. Deploy 'regular' A. (Overwrites 'networks' object).

So, I have to do this work-around.

I'm not sure what the desired behaviour should be, but I've been relying on there being a 'networks' object.

I could use the network object (eg dev-31337.json) to get addresses, but this requires extra lift in the front-end, because you have to load additional files + also add in a prefix if you rely on getting the network id from the provider.

[abcoathup]

Hi @simondlr ! I’m sorry that you had this issue.

We have been able to reproduce this issue by following these steps:

1. Create contract A.sol

// contracts/A.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;

contract A {
}

2. Deploy contract A as a regular contract
   No network object in build/contracts/A.json

Thanks so much for reporting it! The project owner will review and triage this issue as soon as they can. In the meantime, you can try the following workaround:

1. Add the contract to your project using the add command.
   The contract will then be added to the contracts section of .openzeppelin/project.json

$ npx oz add A
✓ Compiled contracts with solc 0.6.10 (commit.00c0fcaf)
✓ Added contract A

2. Deploy as kind regular and the network object should be created.

$ npx oz deploy
Nothing to compile, all contracts are up to date.
? Choose the kind of deployment regular
? Pick a network development
? Pick a contract to deploy A
✓ Deployed instance of A
0xe78A0F7E598Cc8b0Bb87894B0F60dD2a88d6a8Ab

If you aren't already, I suggest including project.json in version control. (See the documentation on Configuration Files in Version Control)

[simondlr]

Thanks @abcoathup. This work-around works perfect. Appreciate the prompt response!