How to call smart contract methods from transactions

Question

I want to know how I can call smart contract written in solidity methods from transactions using java or web3.

Answer 1

You can do this using a wrapper. To build a wrapper use the following code:

solc YourSmartContract.sol --bin --abi --optimize -o ./

web3j solidity generate YourSmartContract.bin YourSmartContract.abi -o /path/to/yourSrc/main/java -p your.application.id

After this, a java file will be created and then you can call the commands.

Comments

Hi, I tried this but I am getting many syntax errors.

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Yes, I have this feedback from many. It works fine on my system. Maybe the errors are because of different versions. Fixing these errors manually will make it work.