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. Share RUs with a Serverless Function

    A popular pattern is to build a REST API using serverless Function with Http trigger, backed by Cosmos DB. Serverless is a very popular paradigm, and Cosmos is the best cloud database, so it's no wonder that customers are interested in this combination. However, the problem in this scenario is the cold start of the serverless Function, which negates the low-latency benefits of CosmosDB provisioning.

    It would be great to allow sharing the RUs provisioned for Cosmos DB collection with serverless functions running against the same collection. Let the Function execution consume some extra RUs, depending on the complexity of…

    2 votes
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  2. Function inputs with query or path support should be able to make use of query/body parameters

    The documentation for SqlQuery inputs mentions that this capability is not yet supported, and points to a GH comment, but I saw no actual feature request so here it is.

    https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-cosmosdb-v2#http-trigger-look-up-id-from-route-data-using-sqlquery-c

    "You can pass route data to the SqlQuery parameter as shown, but currently you can't pass query string values." (link to comment https://github.com/Azure/azure-functions-host/issues/2554#issuecomment-392084583)

    Is there any sort of timeline that users can expect this?

    Also, I think the documentation could be improved to explain that the Route Templates are based on ASP.NET routing, which is where the limitation stems from (because route templates in ASP.NET do not encompass…

    2 votes
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    0 comments  ·  Bindings  ·  Flag idea as inappropriate…  ·  Admin →
  3. Enable Reader Access to view Azure Functions Monitor area so that they can view the running state of that Azure Function.

    Enable Reader Access to view Azure Functions Monitor area so that they can view the running state of that Azure Function. This is important for Prod environments where most users only have only Reader access.

    2 votes
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    0 comments  ·  Flag idea as inappropriate…  ·  Admin →

    This is currently unsupported, along with a large set of features that do not work in the portal with only reader view.
    There is work underway to remove this requirement, and allow us to enable UI for reader access.
    I will update this issue once we have planned that work.

    In the meantime, you can still view your logging information directly in the Application Insights instance for your Function App as a reader.

    Thanks for the feedback!
    Alex
    Azure Functions Team

  4. 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…

    2 votes
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    2 comments  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →

    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

  5. 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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    1 comment  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
  6. 2 votes
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  7. 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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    0 comments  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
  8. 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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    1 comment  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
  9. 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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    1 comment  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
  10. 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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    1 comment  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
  11. Please eliminate sandbox restrictions while running in Docker

    Right now the sandbox applies to azure function apps even when they're running in docker. Docker is the sandbox in that case. Further, things like System.Drawing.Common aren't effected on Linux the same as they are on Windows so there should be no issue requiring the sandbox to interfere.

    So Azure Functions should disable the sand-boxing when running in docker entirely.

    Failing that, it should disable the System.Drawing.Common limitations if running on Linux.

    1 vote
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    unplanned  ·  1 comment  ·  Runtime  ·  Flag idea as inappropriate…  ·  Admin →
  12. Specify a custom window for platform updates to WebApps, Functions, etc.

    I want to be able to request platform upgrades only restart my site within a specific window, say outside of business hours.

    1 vote
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    1 comment  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →

    This is great feedback.
    We strive for platform upgrades to happen transparently to you, however, they will restart every worker for your function app while performing a platform upgrade.

    We do not currently have the infrastructure to make this publicly available, but keep the votes coming!

    Thanks!
    Alex
    Azure Functions Team!

  13. Connecting to PostgreSQL Database hosted in Azure (Linux + Python)

    Azure Functions Bindings works with Azure Cosmo DB, but as of now there is no way to create a Function that writes to a PostgreSQL db stored in Azure. Locally, I can just use Psycopg2 in Python to connect, but this isn't possible without creating a custom container with libpq-dev (for pg_config).

    1 vote
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    unplanned  ·  1 comment  ·  Bindings  ·  Flag idea as inappropriate…  ·  Admin →
  14. 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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  15. add proxy header removal option

    Would it possible to not only override/add headers, but also remove header like x-forwarded-for.

    1 vote
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  16. 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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    0 comments  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
  17. 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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    2 comments  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
  18. 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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  19. 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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  20. 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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