GetResult.Expiry is always null

.NET SDK
1

On 3.0.3 lib I noticed that GetResult.Expiry is always null, no matter how long the object lives.

2

Hi Artem,

The SDK needs a hint that you’re interested in the expiry, otherwise it won’t fetch it from the server. I’m not fluent in C#, but I think this is how you do it:

collection.Get("document-key", options => {
    options.Expiry();
});

Thanks,
David

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3

@david.nault is correct, and though he claims that he’s “not fluent in C#”, he taught me something new today about the Couchbase C# SDK :slight_smile:

Here’s a full example:

using System;
using System.Threading.Tasks;
using Couchbase;
using Couchbase.KeyValue;

namespace ForumQuestions
{
    class Program
    {
        static async Task Main(string[] args)
        {
            var cluster = await Cluster.ConnectAsync("couchbase://localhost", "Administrator", "password");

            var bucket = await cluster.BucketAsync("tests");
            var coll = bucket.DefaultCollection();

            var key = Guid.NewGuid().ToString();
            await coll.InsertAsync(key, new {foo = "bar"}, new InsertOptions().Expiry(new TimeSpan(0, 1, 0)));

            var docWithoutExpiry = await coll.GetAsync(key);
            Console.WriteLine($"DocWithoutExpiry: {docWithoutExpiry.Expiry}");

            var docWithExpiry = await coll.GetAsync(key, options => options.Expiry());
            Console.WriteLine($"DocWithExpiry: {docWithExpiry.Expiry}");

            cluster.Dispose();
        }
    }
}

And here’s a screenshot of the output:

2020-07-20 16_08_08-Microsoft Visual Studio Debug Console

2 Likes