How to generate wrapper code for existing contract with web3j?

Question

I have a contract which I have compiled into the .bin and .abi files. However, generating the wrapper code for the contract like so:

web3j solidity generate -b ./Creation.bin -a ./Creation.abi -o ../../../java/ -p com.humboi.smart.contract

I get the following:

Unknown options: '-b', './Creation.bin', '-a', './Creation.abi', '-o', '../../../java/', '-p', 'com.humboi.smart.contract'

How to fix this?

Answer 1

You have to switch generate and solidity. Then, there are three required arguments --abiFile, --outputDir and --package.

This gives:

web3j generate solidity --abiFile abi.json  --outputDir foo --package foo.bar