/// <summary>
/// Creates or updates a Gateway to be used in Api Management instance.
/// </summary>
/// <param name='operations'>
/// The operations group for this extension method.
/// </param>
/// <param name='resourceGroupName'>
/// The name of the resource group.
/// </param>
/// <param name='serviceName'>
/// The name of the API Management service.
/// </param>
/// <param name='gatewayId'>
/// Gateway entity identifier. Must be unique in the current API Management
/// service instance. Must not have value 'managed'
/// </param>
/// <param name='parameters'>
/// </param>
/// <param name='ifMatch'>
/// ETag of the Entity. Not required when creating an entity, but required when
/// updating an entity.
/// </param>
/// <param name='cancellationToken'>
/// The cancellation token.
/// </param>
public static async Task <GatewayContract> CreateOrUpdateAsync(this IGatewayOperations operations, string resourceGroupName, string serviceName, string gatewayId, GatewayContract parameters, string ifMatch = default(string), CancellationToken cancellationToken = default(CancellationToken))
{
using (var _result = await operations.CreateOrUpdateWithHttpMessagesAsync(resourceGroupName, serviceName, gatewayId, parameters, ifMatch, null, cancellationToken).ConfigureAwait(false))
{
return(_result.Body);
}
}