Azure-sdk-for-net: Azure Search: does it support deleting documents?

[philoushka]

I've searched but can't find any tests demonstrating that the .NET Azure SDK for Azure Search supports deleting documents in the search service index.

Using Microsoft Azure Search Library 0.9.7-preview .

Intellisense in VS doesn't show any operation/method other than Create.

Was expecting IndexBatch.Delete to be able to state:

await indexClient.Documents.IndexAsync(IndexBatch.Delete(myDocs.Select(doc => IndexAction.Delete(doc))));

[brjohnstmsft]

Yes. You can use IndexActionType.Delete for this:

var batch =
    IndexBatch.Create(
        new IndexAction(IndexActionType.Delete, new Document() { { "id", "123" } }),
        new IndexAction(IndexActionType.Delete, new Document() { { "id", "456" } }),
        new IndexAction(IndexActionType.Delete, new Document() { { "id", "789" } }));

indexClient.Documents.Index(batch);

[dreadeddev]

Urm...... not with the latest version of the .sdk you can't!!! Might need to update the code snippet above to something like
IndexBatch.Delete(
new Document() { { "id", "123" } },
new Document() { { "id", "456" } },
new Document() { { "id", "789" } });

[brjohnstmsft]

The answer was valid for the SDK version mentioned in the original issue. Then we changed the SDK to make things easier. :-)

Here is how you would delete a batch with version 1.0 or later:

var batch = IndexBatch.Delete("id", new[] { "123", "456", "789" });
indexClient.Documents.Index(batch);

Or, if you want to mix different operations in the same batch, you can do this:

var batch =
    IndexBatch.New(new[] {
        IndexAction.Delete("id", "123"),
        IndexAction.Delete("id", "456"),
        IndexAction.Delete("id", "789"),
        /* Put IndexAction.Upload, Merge, or MergeOrUpload here */
    });

indexClient.Documents.Index(batch);