Is it just me or did the "metadata": {"address: Pubkey} key-value pair from the generated json disappear when running anchor build?

  • Never mind, I think it is a false alarm
    – Burger Bob
    Commented Oct 17, 2022 at 14:04
  • 2
    It's not a false alarm. It reminds you to deploy Solana Program first before using idl.json file somewhere else such as with the frontend code. Commented Oct 17, 2022 at 16:13

2 Answers 2


"metadata": {"address": "pubKey"} may disappear when running anchor build you will get it back once you run anchor deploy.


Running anchor build will remove the "metadata": {"address: Pubkey} from the bridge_program.json.

Running anchor test will under the hood build and deploy your program, so it will remove the field from bridge_program.json. If you want to skip deployment when running anchor test you will need to pass --skip-deployment and --skip-build.

anchor test --skip-build --skip-deploy   

Writing this as it can be a fix of another related problem.

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