How to Wrap dynamic string variables in double quoutes - json

Question

I have static body which works great. But how I can wrap the same dynamic strings with double quotes - >""
Static Body
var body = #"{" + "\n" +
#" ""profile"": {" + "\n" +
#" ""firstName"": ""Isaac1""," + "\n" +
#" ""lastName"": ""Brock1""," + "\n" +
#" ""email"": ""isaac1.brock#example.com""," + "\n" +
#" ""login"": ""isaac1.brock#example.com""," + "\n" +
#" ""mobilePhone"": ""555-415-1337""" + "\n" +
#" }" + "\n" +
#"}";
Dyanmic Content (FirstName, LastName, Email, MobilePhone should all be wrapped with "")
var body1 = #"{" + "\n" +
#" ""profile"": {" + "\n" +
#" ""firstName"": "+ firstName + "," + "\n" +
#" ""lastName"": "+lastName+"," + "\n" +
#" ""email"": "+email+"," + "\n" +
#" ""login"": "+email+"," + "\n" +
#" ""mobilePhone"": "+mobilePhone+"" + "\n" +
#" }" + "\n" +
#"}";

Answer 1

you can wrap a variable using string escape syntax " \ ""
var body1 = #"{" + "\n" +
#" ""profile"": {" + "\n" +
#" ""firstName"": " + "\"" + firstName + "\"" + "," + "\n" +
#" ""lastName"": " + "\"" + lastName + "\"" + "," + "\n" +
//.....
#" }" + "\n" +
#"}";
but IMHO it is more safe to create a json object and after this to serialize it to a json string , using Newtonsoft.Json for example
var body = new JObject {
["profile"]=new JObject {
["firstName"] = firstName,
["lastName"] = lastName
//...
}
}.ToString();
or you can replace JObject with an anonymos class and serialize after creaing.
var body = JsonConvert.SerializeObject(new
{
profile = new
{
firstName = firstName,
lastName = lastName
//...
}
}, Newtonsoft.Json.Formatting.Indented);