using (client = new DocumentClient(new Uri(endpointUrl), authorizationKey, connectionPolicy))
            {
                //this is where the magic is happening.
                //define a collection of UniqueKeys, which are in themselves a collection of Paths.
                var uniqueKeyPolicy = new UniqueKeyPolicy {UniqueKeys = new Collection<UniqueKey>{ new UniqueKey { Paths = new Collection<string> { "/name" } } }};

                var db = await client.CreateDatabaseIfNotExistsAsync(new Database { Id = DatabaseName });
                var coll = await client.CreateDocumentCollectionIfNotExistsAsync(
                    UriFactory.CreateDatabaseUri(DatabaseName),
                    new DocumentCollection { Id = CollectionName, UniqueKeyPolicy = uniqueKeyPolicy }
                );
                Console.WriteLine("\n1.1. Created Collection \n{0}", coll);


                var doc1 = await client.CreateDocumentAsync(
                    UriFactory.CreateDocumentCollectionUri(DatabaseName, CollectionName), new { name = "Ryan" }
                );

                Console.WriteLine("\n1.1. Doc1 Created\n{0}", doc1);


                var doc2 = await client.CreateDocumentAsync(
                    UriFactory.CreateDocumentCollectionUri(DatabaseName, CollectionName), new { name = "Ryan" }
                );

                Console.WriteLine("\n1.1. Doc2 Created\n{0}", doc2);
            }