Refresh api token

WebAPI/Controllers/AuthController.cs

@@ -47,7 +47,7 @@ namespace WebAPI.Controllers
         private dynamic JWTGenerator(User user)
         {
             var key = Encoding.ASCII.GetBytes(configuration.GetValue<string>("Secret"));
-
+            var expirationTime = DateTime.UtcNow.AddMinutes(30);
             var tokenDescriptor = new SecurityTokenDescriptor
             {
                 Subject = new ClaimsIdentity(new[]
@@ -57,7 +57,7 @@ namespace WebAPI.Controllers
                 new Claim(JwtRegisteredClaimNames.Jti,
                 Guid.NewGuid().ToString())
              }),
-                Expires = DateTime.UtcNow.AddMinutes(30), // TODO: to long - to fix in the future
+                Expires = expirationTime,
                 SigningCredentials = new SigningCredentials
                 (new SymmetricSecurityKey(key),
                 SecurityAlgorithms.HmacSha512Signature)
@@ -66,7 +66,7 @@ namespace WebAPI.Controllers
             var token = tokenHandler.CreateToken(tokenDescriptor);
             var jwtToken = tokenHandler.WriteToken(token);
             var stringToken = tokenHandler.WriteToken(token);
-            return new { token = stringToken, id = user.Id };
+            return new { token = stringToken, id = user.Id, expirationTime };
         }
     }
 }