Search commands (C#)

Message extension search commands allow users to search external systems and insert the results of that search into a message in the form of a card.

Search command invocation locations

There are three different areas search commands can be invoked from:

1. Compose Area
2. Compose Box

Compose Area and Box

Setting up your Teams app manifest

To use search commands you have define them in the Teams app manifest. Here is an example:

"composeExtensions": [
    {
        "botId": "${{BOT_ID}}",
        "commands": [
            {
                "id": "searchQuery",
                "context": [
                    "compose",
                    "commandBox"
                ],
                "description": "Test command to run query",
                "title": "Search query",
                "type": "query",
                "parameters": [
                    {
                        "name": "searchQuery",
                        "title": "Search Query",
                        "description": "Your search query",
                        "inputType": "text"
                    }
                ]
            }
        ]
    }
]

Here we are defining the searchQuery search (or query) command.

Handle submission

Handle query submission when the searchQuery search command is invoked.

using System.Text.Json;
using Microsoft.Teams.Api.Cards;
using Microsoft.Teams.Cards;

[MessageExtension.Query]
public Microsoft.Teams.Api.MessageExtensions.Response OnMessageExtensionQuery(
    [Context] Microsoft.Teams.Api.Activities.Invokes.MessageExtensions.QueryActivity activity,
    [Context] IContext.Client client,
    [Context] Microsoft.Teams.Common.Logging.ILogger log)
{
    log.Info("[MESSAGE_EXT_QUERY] Search query received");

    var commandId = activity.Value?.CommandId;
    var query = activity.Value?.Parameters?.FirstOrDefault(p => p.Name == "searchQuery")?.Value?.ToString() ?? "";

    log.Info($"[MESSAGE_EXT_QUERY] Command: {commandId}, Query: {query}");

    if (commandId == "searchQuery")
    {
        return CreateSearchResults(query, log);
    }

    return new Microsoft.Teams.Api.MessageExtensions.Response
    {
        ComposeExtension = new Microsoft.Teams.Api.MessageExtensions.Result
        {
            Type = Microsoft.Teams.Api.MessageExtensions.ResultType.Result,
            AttachmentLayout = Microsoft.Teams.Api.Attachment.Layout.List,
            Attachments = new List<Microsoft.Teams.Api.MessageExtensions.Attachment>()
        }
    };
}

CreateSearchResults() method

private static Microsoft.Teams.Api.MessageExtensions.Response CreateSearchResults(string query, Microsoft.Teams.Common.Logging.ILogger log)
{
    var attachments = new List<Microsoft.Teams.Api.MessageExtensions.Attachment>();

    // Create simple search results
    for (int i = 1; i <= 5; i++)
    {
        var card = new Microsoft.Teams.Cards.AdaptiveCard
        {
            Body = new List<CardElement>
            {
                new TextBlock($"Search Result {i}")
                {
                    Weight = TextWeight.Bolder,
                    Size = TextSize.Large
                },
                new TextBlock($"Query: '{query}' - Result description for item {i}")
                {
                    Wrap = true,
                    IsSubtle = true
                }
            }
        };

        var previewCard = new ThumbnailCard()
        {
            Title = $"Result {i}",
            Text = $"This is a preview of result {i} for query '{query}'."
        };

        var attachment = new Microsoft.Teams.Api.MessageExtensions.Attachment
        {
            ContentType = Microsoft.Teams.Api.ContentType.AdaptiveCard,
            Content = card,
            Preview = new Microsoft.Teams.Api.MessageExtensions.Attachment
            {
                ContentType = Microsoft.Teams.Api.ContentType.ThumbnailCard,
                Content = previewCard
            }
        };

        attachments.Add(attachment);
    }

    return new Microsoft.Teams.Api.MessageExtensions.Response
    {
        ComposeExtension = new Microsoft.Teams.Api.MessageExtensions.Result
        {
            Type = Microsoft.Teams.Api.MessageExtensions.ResultType.Result,
            AttachmentLayout = Microsoft.Teams.Api.Attachment.Layout.List,
            Attachments = attachments
        }
    };
}

The search results include both a full adaptive card and a preview card. The preview card appears as a list item in the search command area:

When a user clicks on a list item the dummy adaptive card is added to the compose box:

To implement custom actions when a user clicks on a search result item, you can handle the select item event:

[MessageExtension.SelectItem]
public Microsoft.Teams.Api.MessageExtensions.Response OnMessageExtensionSelectItem(
    [Context] Microsoft.Teams.Api.Activities.Invokes.MessageExtensions.SelectItemActivity activity,
    [Context] IContext.Client client,
    [Context] Microsoft.Teams.Common.Logging.ILogger log)
{
    log.Info("[MESSAGE_EXT_SELECT_ITEM] Item selection received");

    var selectedItem = activity.Value;
    log.Info($"[MESSAGE_EXT_SELECT_ITEM] Selected: {JsonSerializer.Serialize(selectedItem)}");

    return CreateItemSelectionResponse(selectedItem, log);
}

// Helper method to create item selection response
private static Microsoft.Teams.Api.MessageExtensions.Response CreateItemSelectionResponse(object? selectedItem, Microsoft.Teams.Common.Logging.ILogger log)
{
    var itemJson = JsonSerializer.Serialize(selectedItem);

    var card = new Microsoft.Teams.Cards.AdaptiveCard
    {
        Schema = "http://adaptivecards.io/schemas/adaptive-card.json",
        Body = new List<CardElement>
        {
            new TextBlock("Item Selected")
            {
                Weight = TextWeight.Bolder,
                Size = TextSize.Large,
                Color = TextColor.Good
            },
            new TextBlock("You selected the following item:")
            {
                Wrap = true
            },
            new TextBlock(itemJson)
            {
                Wrap = true,
                FontType = FontType.Monospace,
                Separator = true
            }
        }
    };

    var attachment = new Microsoft.Teams.Api.MessageExtensions.Attachment
    {
        ContentType = new Microsoft.Teams.Api.ContentType("application/vnd.microsoft.card.adaptive"),
        Content = card
    };

    return new Microsoft.Teams.Api.MessageExtensions.Response
    {
        ComposeExtension = new Microsoft.Teams.Api.MessageExtensions.Result
        {
            Type = Microsoft.Teams.Api.MessageExtensions.ResultType.Result,
            AttachmentLayout = Microsoft.Teams.Api.Attachment.Layout.List,
            Attachments = new List<Microsoft.Teams.Api.MessageExtensions.Attachment> { attachment }
        }
    };
}

Resources

• Search command
• Just-In-Time Install