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I made the function non-constant, and it still did not return the msg.sender. How can I utilize the msg.sender value in a non-transaction function? I wish to get data without paying gas, and I only want that function accessible to the creator. If a non-transaction function can't return the msg.sender value, how can it utilize it within the function's logic?

Tester
– Tester

2017-09-04 21:58:14 +00:00
Commented Sep 4, 2017 at 21:58
You use contract storage to store the owner address

libertylocked
– libertylocked

2017-09-04 22:14:50 +00:00
Commented Sep 4, 2017 at 22:14
I want to compare the owner's address to the current user's address. If a non-transaction function can't return the msg.sender value, how can it utilize it within the function's logic (to compare the owner address to the current user's address)?

Tester
– Tester

2017-09-04 22:22:04 +00:00
Commented Sep 4, 2017 at 22:22
Can't you just do myContractInstance.owner() === userAddress? You can get user's accounts in web3.eth.accounts.

libertylocked
– libertylocked

2017-09-04 22:25:34 +00:00
Commented Sep 4, 2017 at 22:25
What is the specific contract method that returns the address of the person that called a non-transaction function? This needs to be accessible from within the contract (not from JS), because that is where the logic needs to compare to the owner's address..

Tester
– Tester

2017-09-04 22:30:12 +00:00
Commented Sep 4, 2017 at 22:30

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