How can I get the output of a function in dart

[simolus3]

How can I get the output of a function in dart

[liuyuejiang]

I saw the return value for send is a list of int, or call, is a list of dyamic, so in that case, I should use call. However, if I use call, there's no response for the request, why?

[liuyuejiang]

var response = await Transaction(keys: credentials, maximumGas: 0) .prepareForCall(contract, fnfetchdevicestatus, [bid]).call(ethClient); var kitty = new DeviceStatus.fromResponse(bid,response);

When I tried to send a call request, it is said that:
[ERROR:flutter/lib/ui/ui_dart_state.cc(148)] Unhandled Exception: RangeError: Value not in range: 64

[liuyuejiang]

I found the problem, because I use the wrong type of BigInt, I modified the BigInt number, then it works. Please close this issue, thank you.