I can not use my contract ? #43

wufeiafei · 2018-04-08T10:20:08Z

hi,
my contract is here:

but, when I use web3wift, the contract is not work.
this is my code:

I use the method"setFlagData" and "getFlagData", but no work.

the result like this:
the "setFlagData" result:
res:
.success([:])
and the "getFlagData" result:
get res:
.success(["0": ""])

what can I do?

shamatar · 2018-04-08T10:34:25Z

Hello @wufeiafei

Are you sure that "getFlagData" method doesn't return an empty string for this msg.sender? If it does, than your result is correct, you get a default (empty) value.

Regarding the "setFlagData" result: .success([:]) is a valid response if you "call" this method, since it returns nothing in your contract code. To send a transaction and mutate a state your should use a send() method of transaction intermediate

Sincerely, Alex

wufeiafei · 2018-04-08T14:14:43Z

the "getFlagData" method return: .success(["0": ""])
I think the result should be "hello", when I used "setFlagData" method input.
but not get.

shamatar · 2018-04-08T14:24:24Z

Can you use the latest version (0.4.1) and check the logs. When returned information is decoded there are log messages, it will help to trace a problem

…

________________________________ From: Kevin <[email protected]> Sent: Sunday, April 8, 2018 5:14:43 PM To: BANKEX/web3swift Cc: Alexander; Comment Subject: Re: [BANKEX/web3swift] I can not use my contract ? (#43) the "getFlagData" method return: .success(["0": ""]) I think the result should be "hello", when I used "setFlagData" method input. but not get. — You are receiving this because you commented. Reply to this email directly, view it on GitHub<#43 (comment)>, or mute the thread<https://github.com/notifications/unsubscribe-auth/AGKv98EHYRu5_urSEMmg5VbS2psl5Nywks5tmhtTgaJpZM4TLe2q>.

wufeiafei · 2018-04-09T01:52:39Z

hi, when I use the latest version (0.4.1),
the "setFlagData" method log message is:

and the "getFlagData" method log message is :

what is mistake？

shamatar · 2018-04-09T08:14:42Z

Hello @wufeiafei

I've created a similar contract

pragma solidity ^0.4.21;


contract Whisper {
    
    struct Friend {
        string flagData;
    }
    
    mapping (address => Friend) friends;
    
    function setFlagData(string data) public {
        friends[0].flagData = data;
    }
    
    function getFlagData() public view returns (string data) {
        return friends[0].flagData;
    }
    
}

and submitted some data to it using remix. Here is my response:

["0": testData, "data": testData]

You can find a code in test cases in developer branch, function

func testUserCase()

wufeiafei · 2018-04-09T11:01:22Z

yes, I test your code and get the"getFlagData" response like that: ["0": testData, "data": testData],when I submitted some data to it using remix.
But ,if I use "setFlagData" method by web3swift in iOS , the "setFlagData" method response is :
string
0000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000046874747000000000000000000000000000000000000000000000000000000000
Full data:

.success([:])

then, I use "getFlagData", the response is the old, not the new.

this is my code:

shamatar · 2018-04-09T11:40:56Z

You use mutating (not “view” and not “pure”) method “setFlagData”, so when you “call” it - you do not send a transaction, but try to call a function that returns nothing (“returns ()”). You should instead use send() method on intermediate and that a transaction will go into network and change a value in your contract

…

________________________________ From: Kevin <[email protected]> Sent: Monday, April 9, 2018 2:01:23 PM To: BANKEX/web3swift Cc: Alexander; Comment Subject: Re: [BANKEX/web3swift] I can not use my contract ? (#43) yes, I test your code and get the"getFlagData" response like that: ["0": testData, "data": testData],when I submitted some data to it using remix. But ,if I use "setFlagData" method by web3swift in iOS , the "setFlagData" method response is : string 0000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000046874747000000000000000000000000000000000000000000000000000000000 Full data: .success([:]) then, I use "getFlagData", the response is the old, not the new. this is my code: [1523271638574]<https://user-images.githubusercontent.com/3910941/38494380-5411fb3c-3c28-11e8-91dd-9624418708e6.jpg> — You are receiving this because you commented. Reply to this email directly, view it on GitHub<#43 (comment)>, or mute the thread<https://github.com/notifications/unsubscribe-auth/AGKv91OD0nOuwr4kRj5I3qRKGc3tnyJ3ks5tmz-DgaJpZM4TLe2q>.

wufeiafei · 2018-04-09T11:50:50Z

hi, I instead use send() method on intermediate,

but the result is fail.

string
0000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000968656c6c6f576562330000000000000000000000000000000000000000000000
Transaction
Nonce: 1
Gas price: 5000000000
Gas limit: 90000
To: 0xb6b34A03045D8Aa0D210788881bffEc10c4f166e
Value: 0
Data: 0xa46b5b6b0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000968656c6c6f576562330000000000000000000000000000000000000000000000
v: 1
r: 0
s: 0
Intrinsic chainID: Optional(95518)
Infered chainID: Optional(1)
sender: nil
hash: Optional("0xe1719833c6cc8ccca0af6e24a0be8cbdc93aeefbd17237d56bfc217705e5e777")

set result
.failure(transactionSerializationError)
transactionSerializationError

shamatar · 2018-04-09T16:34:31Z

I've found a bug in sending an unsigned transaction to external node. Fixed in #44

wufeiafei · 2018-04-10T02:53:10Z

hi， when I use the lastest code by pod 'web3swift', git: 'https://github.com/BANKEX/web3swift.git',:commit =>'782d5ee' ,
show the erros like this:

what can I do?

wufeiafei · 2018-04-11T05:43:07Z

hi,
I use the lastest code version 0.5.0.
but the use "setFlagData" method in contract, the result also is bad.

the log and result is :

sender:
EthereumAddress(_address: "0x696e2405d2c914228e4409307372aacb470ad833")
Signature required 3 rounds
Transaction
Nonce: 0
Gas price: 5000000000
Gas limit: 90000
To: 0xb6b34A03045D8Aa0D210788881bffEc10c4f166e
Value: 0
Data: 0xa46b5b6b0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000968656c6c6f576562330000000000000000000000000000000000000000000000
v: 191071
r: 115484963803047457941187315055774630604535195829756633299156415369938984242572
s: 5606618538296490632424069479196750027399791712033427709004373420558424659314
Intrinsic chainID: Optional(95518)
Infered chainID: Optional(95518)
sender: Optional("0x696e2405d2C914228E4409307372aACb470aD833")
hash: Optional("0xe8677fee1e5c800b478330c2de6980daf28776a519e5eff1c941c66f94e5d67c")

Transaction
Nonce: 0
Gas price: 5000000000
Gas limit: 90000
To: 0xb6b34A03045D8Aa0D210788881bffEc10c4f166e
Value: 0
Data: 0xa46b5b6b0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000968656c6c6f576562330000000000000000000000000000000000000000000000
v: 191071
r: 115484963803047457941187315055774630604535195829756633299156415369938984242572
s: 5606618538296490632424069479196750027399791712033427709004373420558424659314
Intrinsic chainID: Optional(95518)
Infered chainID: Optional(95518)
sender: Optional("0x696e2405d2C914228E4409307372aACb470aD833")
hash: Optional("0xe8677fee1e5c800b478330c2de6980daf28776a519e5eff1c941c66f94e5d67c")

set result
.failure(nodeError("invalid sender"))
nodeError("invalid sender")

=========
can you help me check it?

shamatar · 2018-04-11T08:11:31Z

Are you using a parity node? Looks like a node doesn’t like EIP155 standard and can not check a signature with a high ChainID. Try to set web3.provider.network = nil and run the same code

…

________________________________ From: Kevin <[email protected]> Sent: Wednesday, April 11, 2018 8:43:08 AM To: BANKEX/web3swift Cc: Alexander; Comment Subject: Re: [BANKEX/web3swift] I can not use my contract ? (#43) hi, I use the lastest code version 0.5.0. but the use "setFlagData" method in contract, the result also is bad. [1523425045711]<https://user-images.githubusercontent.com/3910941/38598148-d49b11a6-3d8d-11e8-8ad1-57c0e9bab092.jpg> the log and result is : sender: EthereumAddress(_address: "0x696e2405d2c914228e4409307372aacb470ad833") Signature required 3 rounds Transaction Nonce: 0 Gas price: 5000000000 Gas limit: 90000 To: 0xb6b34A03045D8Aa0D210788881bffEc10c4f166e Value: 0 Data: 0xa46b5b6b0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000968656c6c6f576562330000000000000000000000000000000000000000000000 v: 191071 r: 115484963803047457941187315055774630604535195829756633299156415369938984242572 s: 5606618538296490632424069479196750027399791712033427709004373420558424659314 Intrinsic chainID: Optional(95518) Infered chainID: Optional(95518) sender: Optional("0x696e2405d2C914228E4409307372aACb470aD833") hash: Optional("0xe8677fee1e5c800b478330c2de6980daf28776a519e5eff1c941c66f94e5d67c") Transaction Nonce: 0 Gas price: 5000000000 Gas limit: 90000 To: 0xb6b34A03045D8Aa0D210788881bffEc10c4f166e Value: 0 Data: 0xa46b5b6b0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000968656c6c6f576562330000000000000000000000000000000000000000000000 v: 191071 r: 115484963803047457941187315055774630604535195829756633299156415369938984242572 s: 5606618538296490632424069479196750027399791712033427709004373420558424659314 Intrinsic chainID: Optional(95518) Infered chainID: Optional(95518) sender: Optional("0x696e2405d2C914228E4409307372aACb470aD833") hash: Optional("0xe8677fee1e5c800b478330c2de6980daf28776a519e5eff1c941c66f94e5d67c") set result .failure(nodeError("invalid sender")) nodeError("invalid sender") can you help me check it? — You are receiving this because you commented. Reply to this email directly, view it on GitHub<#43 (comment)>, or mute the thread<https://github.com/notifications/unsubscribe-auth/AGKv99wxsKgP567l6KjntTfqk1HDQnUKks5tnZfsgaJpZM4TLe2q>.

wufeiafei · 2018-04-11T08:47:57Z

hi,
I added "web3.provider.network = nil " to code,but has errior：Cannot assign to property: '' is a get-only property。

I see the code in Web3+Protocols.swift：

so can not set web3.provider.network = nil

shamatar · 2018-04-11T21:01:43Z

Hello @wufeiafei

Can you test agains the latest master? After #48 you can set a network to nil

skywinder · 2018-04-14T19:59:14Z

@wufeiafei Fixed by #48
Feel free to reopen the issue, if you still need help. 👍

zeroXBami · 2018-05-04T17:24:55Z

i have a question: I already have SmartContract in Solidity, how can i get contract ABI in json?

shamatar · 2018-05-04T17:27:04Z

If you use Remix, it’s in details on the first tab, near the “compile” button

shamatar added the bug label Apr 8, 2018

shamatar mentioned this issue Apr 9, 2018

Cannot send because of transactionSerializationError #36

Closed

shamatar mentioned this issue Apr 14, 2018

Contract deployment implementation #48

Merged

skywinder closed this as completed Apr 14, 2018

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I can not use my contract ? #43

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I can not use my contract ? #43

I can not use my contract ? #43

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