Datetime format to "\/Date(1213131)\/"

Question

I'm trying to call a Webservice with a DateTime format like this : "\/Date(x)\/" where x is the millisecond value since 1970.

How can I generate a DateTime in this format?

Here is what i've done :

dateValidation_long = dateValidation_string.getTime();
String a = '\\/Date(';
String b = ')\\/';
modifierEntiteDeFacturation3C_request.dateValidation = a + dateValidation_long + b;

Here is the result in my console :

\/Date(1505904139000)\/

Then, i'm trying to JSON.serialize this date, to send it via a Webservice, and this is the result :

dateValidation":"\\/Date(1505904534000)\\/"

The webservice response is not OK because the format is different as expected :

DateTime content '\/Date(1505904139000)\/' does not start with '\/Date(' and end with ')\/' as required for JSON.

Answer 1

To make my code working, here is what i've done :

String envelop     = JSON.serialize(modifierEntiteDeFacturation3C_request);
envelop = envelop.replace('\\\\', '\\');

Before : dateValidation":"\\/Date(1505904534000)\\/"

After dateValidation":"\/Date(1505904534000)\/"