Artifacts type missing from generated typings

I ran typechain --target=truffle-v5 --glob "build/contracts/*.json" and it generated all my typings:

ts-gen: Running TypeChain
ts-gen: build/contracts/*.json matched 2 files.
ts-gen: Processing build\contracts\Migrations.json
ts-gen: Writing file: types\truffle-contracts\Migrations.d.ts
ts-gen: Processing build\contracts\XXX.json
ts-gen: Writing file: types\truffle-contracts\XXX.d.ts
ts-gen: Writing file: types\truffle-contracts\index.d.ts
ts-gen: Writing file: types\truffle-contracts\types.d.ts
ts-gen: � All done! Generated files: 4

However in the generated types.d.ts it has this:

declare const artifacts: Truffle.Artifacts;

But there’s a red squiggle under Artifacts as it doesn’t seem to exist in the generated Truffle namespaces (it has many other definitions, like Accounts, TransactionDetails, TransactionLog).

Is this a bug, or is there something else I need to do? I thought maybe I need truffle-typings, however the readme says that’s deprecated and everything is generated here.

Thanks!

[DanTup]

Yeah, I was using that as a reference - but started from an empty project to make sure I understood everything I was adding. I’d been bitten by weird behaviour with no tsconfig.json in the past, so not sure why it hadn’t occurred to me earlier!

FWIW, on Windows, I found that using single quotes around the glob here didn’t work:

https://github.com/ethereum-ts/TypeChain/blob/849a90f81b0753def86c989e139138ea38f4721f/examples/truffle-v5/package.json#L8

If I ran the same command directly from a shell it was fine, but when running with npm run generate-types it would always say the glob matched nothing. Swapping the quotes to \" solved the issue. I’m not sure I understand that either, but if you can repro, it may be worth updating there for those using it as a reference on Windows 😃

Thanks!

[DanTup]

BTW:

You won’t find a sign of chai / mocha in generated typings.

These are coming from the types.d.ts file written by the target-truffle-v5 package:

https://github.com/ethereum-ts/TypeChain/blob/f63bbe3504bb82eec2d683850998d8547b05f825/packages/target-truffle-v5/static/types.d.ts#L4-L11

https://github.com/ethereum-ts/TypeChain/blob/f63bbe3504bb82eec2d683850998d8547b05f825/packages/target-truffle-v5/src/index.ts#L49-L60

This results in expect being a chai interface automatically in all test files.