Azure Functions

Azure Functions is an event driven, compute-on-demand experience that extends the existing Azure application platform with capabilities to implement code triggered by events occurring in other Azure services, SaaS products, and on-premises systems. With Azure Functions, your applications scale based on demand and you pay only for the resources you consume. Azure Functions provides an intuitive, browser-based user interface allowing you to create scheduled or triggered pieces of code implemented in a variety of programming languages.

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  1. Support for "delete" DocumentDB Change Feed Trigger

    Currently there is support for DocumentDB Change Feeds which only trigger for Insert and Update changes, however there is no way of picking up Delete changes to a collection

    My use case has a real-time web application which relies on these change triggers to update the User Interface through Web Sockets that a change to a document/collection has taken place, at the moment I am having to implement this manually through a delete API call but that does not solve the problem if a document is manually deleted at source (for example).

    A Delete of a document (IMHumbleO) is as…

    2 votes
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  2. Add "Deny" option when Request is not Authenticated

    I have a function app set up as a private API that requires users to authenticate via Azure AD B2C to be able to make calls. My mobile app does the auth and then provides the Bearer token in the service calls.
    This all works but if someone happens to browse an endpoint in a browser I don't want them to be redirected to the login page as the API is only meant to be requested from within the mobile app.
    I would like an option to just deny access to the API when a request is not authorised.

    2 votes
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  3. Visual Studio Tooling - Javascript Project Template

    C# Project Template was recently added for Visual Studio Tooling https://feedback.azure.com/forums/355860-azure-functions/suggestions/13301214-visual-studios-tooling-with-local-execution-debug , however this doesn't handle all languages - F#, Javascript/Typescript, etc.

    Hoping we can get support added for better deployment capabilities with other languages as well as source code management. Great to see the Azure Function tooling finally make it to RTM for C#!

    2 votes
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  4. Scale # of servers in consumption plan based on Service Bus Queue Size

    My service bus will spike at the top of each hour with up to 1000+ messages to get processed immediately. It would be nice for the consumption plan to allow us to scale the # of servers to come online to be based on that queue size. Example: for 1000 messages, I would like 10 servers to come online (1 server per 100 in the queue).

    2 votes
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  5. Search input/output bindings

    Want to treat documents of the Azure Search as JSON from the Function Apps.

    First about input bindings. See following pseudo function.json.

    {
    "bindings": [
    {
    "name": "req",
    "type": "httpTrigger",
    "direction": "in"
    },
    {
    "name": "search_result",
    "type": "search",
    "direction": "in",
    "serviceName": "mybookshelf",
    "indexName": "book",
    "apiKey": "envname-SEARCH_ADMIN_KEY",
    "queryType": "full",
    "searchMode": "all",
    "searchFields": ["id", "title", "author"],
    "search": "title:{title} AND genre:{genre}"
    },
    {
    "name": "res",
    "type": "http",
    "direction": "out"
    }
    ]
    }

    When an http request is arrived, contents of $search_result likes as followings.

    [
    {
    "id": "e583e025-01f4-4288-8dec-be6723afe607",
    "title": "Dragon Ball vol.1",
    "author": "Akira TORIYAMA"
    },
    {
    "id": "bb0086f9-e924-450c-b615-f51fb730e339",
    "title": "Dragon Ball vol.2", …

    2 votes
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  6. Support etags for Azure Table Storage read/write operations

    I use python functions to read/write into Azure tables, unfortunately the etags are hidden. It would be quite useful to be able to access the eTags to ensure consistency of writes.

    2 votes
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  7. Add Event Domain or Event Grid output binding

    Add Event Domain or Event Grid output bindings to azure functions

    1 vote
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  8. Add Perl To Base Image

    I would like to read metadata with exiftool, but the distributed version that can run on Windows without perl takes ages to start with node's child_process (could be because of Windows Defender?), therefore I have to use Linux. And on Linux, there's no Perl unless I use a custom image, but it's not even supported on a consumption plan. The other FAAS has perl so could we have it here as well please?

    1 vote
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  9. openId connect plugin / guidance

    In MVC, we have Microsoft OpenId Connect / Owin to secure the application using Hybrid flow with a Single Page Application on the front end.

    The request is to have capabilities to move from MVC SPA (self hosted VM) to Serverless (Azure blob + Azure function as backend) to do Hybrid flow authentication.

    1 vote
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  10. Add ability to restrict deployment from dev environments

    I recently created a new function app in our team's tenant to handle some custom monitoring. Now that I'm done prototyping it and have it in a workable state, I've created an Azure DevOps build and release to handle publishing the app.

    I need to do this, rather than simply use the CD from git branch option, because I'm using Typescript (currently unsupported), and need to install both node_modules and extensions for the app (because the app won't perform those steps itself based on package.json or extensions.csproj)

    While the pipeline now works, I can't find a way to lock down…

    1 vote
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  11. certificate

    Can Azure Functions support SSL certificate for consumption plan?
    I found on https://docs.microsoft.com/en-us/azure/azure-functions/scripts/functions-cli-configure-ssl-certificate that "To bind an SSL certificate, your function app must be created in an App Service plan and not in a consumption plan."

    1 vote
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  12. Offer ability to train a Neural Network Model using Azure Functions with GPU

    Offer ability to train a Neural Network Model using Azure Functions with GPU. this will be very useful, especially if you want to train Models using different parameters or hyper-parameter optimization.

    1 vote
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  13. EventHub Trigger filtering based on properties

    It would be great to be able to provide a filtering expression in the binding of an eventHubTrigger. Using this I could configure my function to only be invoked for certain events that match the filter. For example, I store a property called "eventType" in the application properties of each event. My function is potentially only interested in events of one or more specific types. Currently I code this logic into the function, which works fine. However, it counts as an unnecessary invocation and increases the cost. Ideally the filtering would take place in the host and not incur a…

    1 vote
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    Unsure on this one but marking as unplanned. The filtering would also have to happen at the client to preserve ordering. However even if we did the filtering before the execution it’s still consuming compute so I don’t think it makes sense for it to be “free.” Just because the trigger is doing filtering before execution wouldn’t necessarily negate the price aspect. And since filtering often has some custom parsing / decoding / conditions it’s almost better to do it in code.

    -
    Jeff

  14. Expose StorageClientFactory or QueueProcessorFactory to enable triggering on client-side-encrypted queues

    With WebJobs, a custom StorageClientFactory can set an EncryptionPolicy in the DefaultRequestOptions such that encrypted queue messages are transparently decrypted when triggering a WebJob.

    Alternatively, the EncryptionPolicy can be set on a queue by queue basis using a custom QueueProcessorFactory.

    If these, or a more general way to modify the JobHostConfiguration were provided, then we would be able to store the storage connection string in Azure KeyVault and use client side encryption with Azure Functions apps.

    1 vote
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