Teams Message Extension: add Authorization Header to URL accessing costum web server - Stack Overflow

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I wonder wether it is somehow possible to add an authorization header to the call which is triggered by my message extension to my custom web service.
I couldn't find anything in MessagingExtensionActionResponse, TaskModuleContinueResponse or TaskModuleTaskInfo...

Thanks for your help, Anne

Example from MS for a message extension calling a URL on a custom web service:

protected override Task<MessagingExtensionActionResponse> OnTeamsMessagingExtensionFetchTaskAsync(ITurnContext<IInvokeActivity> turnContext, MessagingExtensionAction action, CancellationToken cancellationToken)
        {
                    return new MessagingExtensionActionResponse
                    {
                        Task = new TaskModuleContinueResponse
                        {
                            Value = new TaskModuleTaskInfo
                            {
                                Height = 200,
                                Width = 400,
                                Title = "Task Module HTML Page",
                                Url = ".html",
                            },
                        },
                    };

I wonder wether it is somehow possible to add an authorization header to the call which is triggered by my message extension to my custom web service.
I couldn't find anything in MessagingExtensionActionResponse, TaskModuleContinueResponse or TaskModuleTaskInfo...

Thanks for your help, Anne

Example from MS for a message extension calling a URL on a custom web service:

protected override Task<MessagingExtensionActionResponse> OnTeamsMessagingExtensionFetchTaskAsync(ITurnContext<IInvokeActivity> turnContext, MessagingExtensionAction action, CancellationToken cancellationToken)
        {
                    return new MessagingExtensionActionResponse
                    {
                        Task = new TaskModuleContinueResponse
                        {
                            Value = new TaskModuleTaskInfo
                            {
                                Height = 200,
                                Width = 400,
                                Title = "Task Module HTML Page",
                                Url = "https://myserver/htmlpage.html",
                            },
                        },
                    };

• microsoft-teams

Share Improve this question Follow asked Nov 19, 2024 at 14:34 AnneAnne 8366 bronze badges 2

• Unfortunately, the standard MessagingExtensionActionResponse, TaskModuleContinueResponse, and TaskModuleTaskInfo do not directly support adding custom headers like authorization headers. – Sayali-MSFT Commented Nov 20, 2024 at 12:19
• Thanks for your answer. Is there any other possibility which I can use to achieve this or does the call from teams to the web service have to be unauthorized? – Anne Commented Nov 21, 2024 at 6:17

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1 Answer 1

Sorted by: Reset to default 0

One way is to handle the authorization within your custom web service. Here’s a general idea of how you can do it:

• Ensure that your web service can handle authorization tokens. You can pass the token as a query parameter or in the body of the request.

• When your message extension triggers the call, include the
  authorization token in the request. This can be done by modifying the payload sent to your web service.

Here’s a simplified example of how you might modify the payload to include an authorization token:

const payload = {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json',
        'Authorization': 'Bearer YOUR_AUTH_TOKEN'
    },
    body: JSON.stringify({
        // Your existing payload data
    })
};

fetch('https://your-custom-web-service-url', payload)
    .then(response => response.json())
    .then(data => {
        // Handle the response data
    })
    .catch(error => {
        console.error('Error:', error);
    });

In this example, replace 'YOUR_AUTH_TOKEN' with the actual token you need to use for authorization.

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