c# - Paypal Express Checkout: Error 10001 Timeout -

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so i'm trying implement paypal express checkout , keep recieving above error.

my nv follows:

method=setexpresscheckout& version=204.0& user=mylogicn& pwd=mypwd& signature=mysignature& paymentrequest_0_amt=26.65& paymentrequest_0_currencycode=gbp& returnurl=https://www.example.com/basket/notificationprocessor.ashx?type=paypalsuccess& cancelurl=https://www.example.com/basket/notificationprocessor.ashx?type=paypalfailure& paymentrequest_0_paymentaction=sale

obviously information changed. can't find particularly wrong request without fail returns 10001, timeout processing request.

i'm hoping here has encountered before , has solution.

edit: here's code puts request , retrieves response:

string[][,] nv = new string[11][,] {     new string[,]{{"method", "setexpresscheckout" }},     new string[,]{{"version", "204.0" }},      new string[,]{{"user", "myuser"}},     new string[,]{{"pwd", "mypwd"}},     new string[,]{{"signature","mysig"}},      new string[,]{{"paymentrequest_0_amt", "26.65"}},     new string[,]{{"paymentrequest_0_currencycode","gbp"}},      new string[,]{{"returnurl",  "https://www.example.com/basket/notificationprocessor.ashx?type=paypalsuccess"}},     new string[,]{{"cancelurl", "https://www.example.com/basket/notificationprocessor.ashx?type=paypalfailure"}},      new string[,]{{"paymentrequest_0_paymentaction", "sale"}},     new string[,]{{"noshipping", "1"}}, }; string q = "?"; foreach(string[,] s in nv) {     q += s[0,0] + "=" + s[0,1] + "&"; } q = q.trimend('&'); httpwebrequest req = (httpwebrequest)webrequest.create("https://api-3t.sandbox.paypal.com/nvp" + q); req.method = "post";  httpwebresponse response = (httpwebresponse)req.getresponse(); var encoding = asciiencoding.ascii; if (response.statuscode == httpstatuscode.ok) {     using (var reader = new system.io.streamreader(response.getresponsestream(), encoding))     {         string response = reader.readtoend();     } }

and paypals response:

timestamp=2016%2d07%2d11t11%3a10%3a55z& correlationid=dcd0f848a9bb9& ack=failure& l_errorcode0=10001& l_shortmessage0=internal%20error& l_longmessage0=timeout%20processing%20request

error 10001 unhandled exception means there's no better error message available.

as per paypal documentation

you must encode request field values in request paypal , decode field values in response. must encode , decode individual values; do not encode or decode entire message. browsers attempt encode , decode messages redirected or them; however, must verify encoding , decoding done correctly , field values.

it might happen due encoding. try rid of , see if helps.


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