Webrequest issue : "Timestamp for this request is outside of the recvWindow."

[mehmetisl]

Hello, First of all i would like to thank you for the API, it is really useful.

There is no problem with websocket, but when I run the Asynchronous example you mentioned.

int main() {
    const std::string pk = "xxx";
    const std::string sk = "xxx";

    boost::asio::io_context ioctx;
    binapi::rest::api api(
        ioctx
        , "api.binance.com"
        , "443"
        , pk
        , sk
        , 10000 // recvWindow
    );

    auto account = api.account_info();
    if (!account) {
        std::cerr << "account info error: " << account.errmsg << std::endl;
        return EXIT_FAILURE;
    }

    std::cout << "account info: " << account.v << std::endl << std::endl;

    return EXIT_SUCCESS;
}

I get the following error. "Timestamp for this request is outside of the recvWindow." I have tried with different recvWindow values (20000,60000) but the result was the same. Is there a way that i can control what is the created timestamp on the request ? or any other way to change created timestamp ?

[niXman]

hi,

can you please show me the content of the data string at this line?: https://github.com/niXman/binapi/blob/master/src/api.cpp#L231

[mehmetisl]

hi, get_current_ms_epoch() content is : 1641313662795 data content is : timestamp=636155723&recvWindow=60000

[mehmetisl]

I have tried to use data+= std::to_string( get_current_ms_epoch()); instead of local to_string lambda expression but, then program is crashing with out exception.

[niXman]

get_current_ms_epoch() content is : 1641313662795

did you mean the return value?

data content is : timestamp=636155723&recvWindow=60000

I don't understand how this can be... if the return value of get_current_ms_epoch() is 1641313662795, then the data should have timestamp=1641313662795&recvWindow=60000

[niXman]

which compiler and OS are you using?

[mehmetisl]

OS : Windows 10 , Compiler : VS 2022 Preview , C++20, x86

[mehmetisl]

did you mean the return value?

Yes

I don't understand how this can be... if the return value of get_current_ms_epoch() is 1641313662795, then the data should have timestamp=1641313662795&recvWindow=60000

Yes you are right but it seems it is not. Do you have any comment why program is crashing when the time stamp is correct value on data string. I mean when data is like this timestamp=1641313662795&recvWindow=60000 it is crashing, and there is no any exception

[niXman]

hmm... maybe this problem only concerns the MSVC compiler and its snprintf() implementation features... I've never built this project using MSVC.

I have tried to use data+= std::to_string( get_current_ms_epoch()); instead of local to_string lambda expression but, then program is crashing with out exception.

very strange... does the MSVC compiler support using std::to_string() with an argument of type std::uint64_t ?

[niXman]

Yes you are right but it seems it is not. Do you have any comment why program is crashing when the time stamp is correct value on data string. I mean when data is like this timestamp=1641313662795&recvWindow=60000 it is crashing, and there is no any exception

that is, does the program crash not on the std::to_string(get_current_ms_epoch()) line?

[niXman]

could you tell me which line the program is crashing on?

[mehmetisl]

it is compiling without any problem, exe is crashing.

[niXman]

then just run the program in debug mode.

[mehmetisl]

very strange... does the MSVC compiler support using std::to_string() with an argument of type std::uint64_t ?

yes MSVC supports it.

[mehmetisl]

then just run the program in debug mode.

Assertion failed: json.is_valid(), file C:\Users\Jho\source\repos\Binapi\Binapi\api.cpp, line 266

[niXman]

great!

please show me the content of the strbuf var on this line: https://github.com/niXman/binapi/blob/master/src/api.cpp#L260

[mehmetisl]

strbuf = 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[niXman]

very strange because this JSON is valid...

I need to think...

[mehmetisl]

I`m not sure it is related with the issue but. I just removed the "-" from the code , otherwise it wasn't compiled at all: https://github.com/niXman/binapi/blob/master/include/binapi/flatjson.hpp#L309

conv_to(const char *ptr, std::size_t len) {
    if ( *ptr == '-' ) {
        ++ptr;
        return -conv_to<typename std::make_unsigned<To>::type>(ptr, len - 1);
    }

    return conv_to<typename std::make_unsigned<To>::type>(ptr, len);
}

[mehmetisl]

Hi again, I just tried find out where the exception is throwing and this is what i found:

[niXman]

I`m not sure it is related with the issue but. I just removed the "-" from the code , otherwise it wasn't compiled at all: https://github.com/niXman/binapi/blob/master/include/binapi/flatjson.hpp#L309

conv_to(const char *ptr, std::size_t len) {
    if ( *ptr == '-' ) {
        ++ptr;
        return -conv_to<typename std::make_unsigned<To>::type>(ptr, len - 1);
    }

    return conv_to<typename std::make_unsigned<To>::type>(ptr, len);
}

if you get an exception, then the code compiled successfully.

[niXman]

Hi again, I just tried find out where the exception is throwing and this is what i found:

please show the backtrace

[red-angry-bird]

Hi there, maybe i can help. I also got that exactly same problem on windows and solved it. Only problem is I can't remember how.. but I don't think this problem comes from the underlying library. One important thing that comes first in my mind is that the windows time server is really thrashy. So you need synchronize it like once a day manually. See my screenshot for further information

If I remember more details, I'll let you know.

[mehmetisl]

These are the const flatjson::fjson json object values __vfptr = 0x0028f318 {Binance.exe!void(* flatjson::fjson::vftable'[2])()} {0x00241d90 {Binance.exe!flatjson::fjson::scalar deleting destructor'(unsigned int)}} m_storage = shared_ptr { size=2452 } [1 strong ref] [{_Storage={_Value={ size=2452 } } }] m_src_beg = 0x00c17000 "{\"makerCommission\":10,\"takerCommission\":10,\"buyerCommission\":0,\"sellerCommission\":0,\"canTrade\":true,\"canWithdraw\":true,\"canDeposit\":true,\"updateTime\":1641352875207,\"accountType\":\"SPOT\",\"balances\":[{\"a... m_src_end = 0x00c1e09e "" m_beg = 0x00000000 m_end = 0x00000000 m_err = FJ_EC_CHILDS_OVERFLOW (-6)

[mehmetisl]

@red-angry-bird Thank you for the information , i have tried it but the result is same.

[niXman]

These are the const flatjson::fjson json object values __vfptr = 0x0028f318 {Binance.exe!void(* flatjson::fjson::vftable'[2])()} {0x00241d90 {Binance.exe!flatjson::fjson::scalar deleting destructor'(unsigned int)}} m_storage = shared_ptr { size=2452 } [1 strong ref] [{_Storage={_Value={ size=2452 } } }] m_src_beg = 0x00c17000 "{"makerCommission":10,"takerCommission":10,"buyerCommission":0,"sellerCommission":0,"canTrade":true,"canWithdraw":true,"canDeposit":true,"updateTime":1641352875207,"accountType":"SPOT","balances":[{"a... m_src_end = 0x00c1e09e "" m_beg = 0x00000000 m_end = 0x00000000 m_err = FJ_EC_CHILDS_OVERFLOW (-6)

do you use any of my CMakelists files from examples to build your project?

[niXman]

I will rewrite this line (https://github.com/niXman/binapi/blob/master/src/api.cpp#L262) soon so the code can report errors on parsing.

[mehmetisl]

do you use any of my CMakelists files from examples to build your project?

No i'm not using your CMakelists files to build the project. Actually i`m not sure how to use it properly.

[niXman]

so you haven't added those definitions to your project?: https://github.com/niXman/binapi/blob/master/examples/asynchronous/CMakeLists.txt#L10

[mehmetisl]

so you haven't added those definitions to your project?: https://github.com/niXman/binapi/blob/master/examples/asynchronous/CMakeLists.txt#L10

No i haven`t added them. Do you have any instruction documentation or guidance about how to build the project with CMake

[niXman]

just add the following definitions:

__FLATJSON__CHILDS_TYPE=std::uint32_t
__FLATJSON__VLEN_TYPE=std::uint32_t

[niXman]

I will rewrite this line (https://github.com/niXman/binapi/blob/master/src/api.cpp#L262) soon so the code can report errors on parsing.

also I will make changes to the flatjson project so the __FLATJSON__KLEN_TYPE / __ FLATJSON__VLEN_TYPE / __ FLATJSON__CHILDS_TYPE macros have the uint32_t type by default.

[mehmetisl]

just add the following definitions:

It worked! Thank you.

[niXman]

I will rewrite this line (https://github.com/niXman/binapi/blob/master/src/api.cpp#L262) soon so the code can report errors on parsing.

also I will make changes to the flatjson project so the __FLATJSON__KLEN_TYPE / __ FLATJSON__VLEN_TYPE / __ FLATJSON__CHILDS_TYPE macros have the uint32_t type by default.

done: https://github.com/niXman/binapi/commit/6ae48b18ce790931e7324c4ff040b90158517abb

[niXman]

I will rewrite this line (https://github.com/niXman/binapi/blob/master/src/api.cpp#L262) soon so the code can report errors on parsing.

done: https://github.com/niXman/binapi/commit/923bec4d9bc4c344b15d2da3e06b2808bd64f16e

[niXman]

@mehmetisl @red-angry-bird could you test please? :)

[red-angry-bird]

@niXman tested receiving error messages in that specific case and stopped using those definitions in my CMakefile. Works!

[niXman]

@mehmetisl please confirm and close.

[mehmetisl]

Tested. Works!