Multiple SPDX licenses

Support Contracts
1

Hi,
There are multiple SPDX licenses into my token smart contract, UNLICENSED and MIT(due to Openzeppelin contracts).
When i flattened the token contract, which license should i use?
Because only one SPDX license is acceptable.
Thanks!

2

As far as I can tell flattening is incompatible with multiple licenses.

You can find relevant discussion here:

1 Like
3

Thanks for your reply but Etherscan API only supports single file verification.
If i have multiple solidity files(which i have), how can i verify contract source code from frontend?
Without flattening of course...

4

Their warning;

"Contracts that use "imports" will need to have the code concatenated into one file as we do not support "imports" in separate files."

5

The Etherscan API definitely supports verifying multiple files. You should submit the JSON input for the Solidity compiler.

1 Like
6

Thanks but when i have multiple files/imports which JSON Input should i submit?
Every abstract contract or library etc. has their own JSON file after the compile process...
I'm confused about this part...
If you can give me a basic example i'll be grateful !!

7

You are probably looking at the output JSON artifacts. The JSON input is just one. If you're using Hardhat, it's located under artifacts/build-info in the input field of each build info file.

1 Like
8

Thank you very much :slight_smile: I figured it out with your help!