/// <summary>
/// Adds a number of <see cref="Claim"/> to the <see cref="JwtPayload"/> as JSON { name, value } pairs.
/// </summary>
/// <param name="claims">For each <see cref="Claim"/> a JSON pair { 'Claim.Type', 'Claim.Value' } is added. If duplicate claims are found then a { 'Claim.Type', List<object> } will be created to contain the duplicate values.</param>
/// <remarks>
/// <para>Any <see cref="Claim"/> in the <see cref="IEnumerable{Claim}"/> that is null, will be ignored.</para></remarks>
/// <exception cref="ArgumentNullException"><paramref name="claims"/> is null.</exception>
public void AddClaims(IEnumerable <Claim> claims)
{
if (claims == null)
{
throw LogHelper.LogExceptionMessage(new ArgumentNullException(nameof(claims)));
}
foreach (Claim claim in claims)
{
if (claim == null)
{
continue;
}
string jsonClaimType = claim.Type;
object jsonClaimValue = claim.ValueType.Equals(ClaimValueTypes.String) ? claim.Value : TokenUtilities.GetClaimValueUsingValueType(claim);
object existingValue;
// If there is an existing value, append to it.
// What to do if the 'ClaimValueType' is not the same.
if (TryGetValue(jsonClaimType, out existingValue))
{
IList <object> claimValues = existingValue as IList <object>;
if (claimValues == null)
{
claimValues = new List <object>();
claimValues.Add(existingValue);
this[jsonClaimType] = claimValues;
}
claimValues.Add(jsonClaimValue);
}
else
{
this[jsonClaimType] = jsonClaimValue;
}
}
}