writeJson for Array of Objects

[vapopov]

Test script:

pragma solidity 0.8.17;

import "forge-std/StdJson.sol";
import "forge-std/Script.sol";

contract JSONScript is Script {
    using stdJson for string;

    function run() public {

        string memory obj1 = "";
        vm.serializeUint(obj1, "number", uint256(342));
        string memory obj2 = "";
        vm.serializeUint(obj2, "number", uint256(342));

        string[] memory st2 = new string[](2);
        st2[0] = vm.serializeUint(obj1, "number2", uint256(55555));
        st2[1] = vm.serializeUint(obj2, "number2", uint256(55555));

        string memory json1 = "some key";
        vm.serializeBool(json1, "boolean", true);
        vm.serializeUint(json1, "number", uint256(342));
        vm.serializeUint(json1, "number2", uint256(55555));
        vm.serializeString(json1, "st2", st2);

        string memory json2 = "some other key";
        string memory output = vm.serializeString(json2, "title", "finally json serialization");
        string memory finalJson = vm.serializeString(json1, "object", output);

        console.logString(finalJson);

        string memory rt = vm.projectRoot();
        finalJson.write(string(abi.encodePacked(rt,"/export/exp.json")));
    }
}

which gives me current results:

{"object":{"title":"finally json serialization"},"number2":55555,"boolean":true,"number":342,"st2":"[\"{\"number\":342,\"number2\":55555}\",\"{\"number\":342,\"number2\":55555}\"]"}

so all objects which is added to array is serialized as escaped strings

[mds1]

cc @odyslam

[odyslam]

Ooof, I thought I ironed out all the kinks. Will look into it, thanks!

[mds1]

Also should we transfer this issue to the main foundry repo? cc @mattsse

[vapopov]

@odyslam another one issue:
if i try to convert number to string

vm.serializeString(result, "totalUsdgAmount", Strings.toString(TotalUsdgAmount));

as a result in json I still get numeric value

"usdgAmount":3.3428815122454733e24

[odyslam]

Irrelevant note: You can use vm.toString()

Interesting. Will create a master issue to keep track of it in forge