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. Output to Service Bus Queues Dynamically

    I have an Azure Function that binds to an input Event Hub and an output Service Bus Namespace. The output binding accepts the name of a queue. However, the event data coming from the Event Hub can potentially go to different queues. The determinant is in the message data. It would be nice to be able to tokenize the queue destination based on event data coming from the Event Hub

    5 votes
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  2. local settings json

    Add the ability to create a template local.settings.json file in the dev tooling for VSCode and Visual Studio. Since local.settings is git-ignored by default, when a developer clones down a repo they often have to re-create a local.settings.json file. To do this it involves simply creating a bare json file and hand-coding the right schema/values. It would improve developer productivity to add a "New local settings file..." option to the dev tooling which creates the same skeleton file a dev is given in a new function project.

    4 votes
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  3. 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…

    4 votes
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  4. 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…

    4 votes
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    0 comments  ·  Bindings  ·  Flag idea as inappropriate…  ·  Admin →
  5. Scala support for Azure Functions

    The Java worker for Functions allows Scala to be exectured in Functions relatively easily. It would be great to see Microsoft support Scala as they do Java with MSFT endorced build and deploy practices.

    See post here seeing how easy it is to deploy manually https://monteledwards.com/2018/10/07/deploying-scala-code-on-azure-functions/

    4 votes
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  6. Azure Function C# template to use nameof() and appropriate function name

    How about change C# template like below form?

    [FunctionName(nameof(HttpTriggerCSharp))
    public static ...HttpTriggerCSharp(...)
    {
    ...
    }

    I think all of functions name has Run() might not reasonable. and utilize nameof() could be very helpful to change function name and readibility

    4 votes
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  7. Wildcard within path of blob input bindings

    I wish we could specify blob storage input bindings path that included wildcard.

    --- function.json
    {
    "type": "blob",
    "name": "faces",
    "path": "face/profile-{date}-*.png",
    "connection": "AzureWebJobsDashboard",
    "direction": "in"
    }

    Then, I hope to process these as array of Blob objects.

    ---index.js

    module.exports = function (context, myQueueItem) {

    const fileSizeList = context.bindings.faces.map(face => face.size);
    
    context.log(fileSizeList);
    context.done();

    };

    4 votes
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    0 comments  ·  Bindings  ·  Flag idea as inappropriate…  ·  Admin →
  8. Azure B2C Trigger

    It would be really helpful to be able to have triggers on Azure B2C, for example on new user added take some action etc.

    4 votes
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    0 comments  ·  Bindings  ·  Flag idea as inappropriate…  ·  Admin →
  9. Add binding attribute to control function scaling

    We use azure functions extensively. One of the issues we have is not being able to control individual functions scaling. I am not talking bout the function app here, but the functions themselves.

    Using the new attribute binding system could be a very nice way to set the max number of instances a function can spawn.
    [MaxParallelExecution(5)] or something like that.

    this would make it so that particular function does not scale over 5 instances.

    4 votes
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  10. Sync code from blob storage

    I find the current deployment model way too difficult to work with. Please consider supporting auto-sync from blob storage, similar to what aws lambda offers.

    4 votes
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  11. Client cert authentication support in Azure functions

    the ability to support mutual authentication with client certs. Today the only way to do this is built it into your functions
    https://stackoverflow.com/questions/49686316/azure-functions-configure-client-certificate-authentication
    it would be great to have this as a feature of the platform.

    you could compare this lack of functionality to the something like Kubernetes ingress controller that easily allows you to do mutual auth https://github.com/kubernetes/ingress-nginx/tree/master/docs/examples/auth/client-certs

    3 votes
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  12. Please consider defaulting the task hub name to the site name in Durable functions1.0 to avoid the storage conflict.

    Please consider defaulting the task hub name to the site name in Durable functions1.0 to avoid the storage conflict.

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

    You can do this today by setting the hubName to WEBSITE_SITE_NAME in host.json. It should work in both V1 and V2 of Durable Functions. (NOTE: it should be WEBSITE_SITE_NAME surrounded in percent signs, user voice may not be displaying the percent signs properly) – Anthony

  13. Address Azure Functions Resiliency Weakness to Azure Service DNS issues

    Azure DNS issue R50C-5RZ caused multiple core Azure function triggers to fail across our subscriptions due to loss of access to Storage Accounts.

    The DNS issue made all our storage accounts temporarily unresolvable by DNS and because of the tight coupling with Azure functions, function triggers failed due to the inability to resolve storage account urls but did not recover when the DNS issue was corrected.

    There were some Socketexception / 'remote host not found' errors logged in App insights but seemed to be no way to know that the trigger was in a failed state (unless a build up…

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

    This is an awesome idea!
    We’re very unlikely to be able to reduce our dependency on DNS, but we can generally handle failing triggers more gracefully.

    “Handle temporary loss of a storage account without requiring a manual restart” is a scenario we’re targeting.

    Keep the feedback coming!
    Alex

  14. Provide memory usage data in context object

    It would be great if we could manage memory in realtime in our code. Please provide a method to check memory usage in the context object so that we can take mitigating steps in our code if there is not enough memory.

    3 votes
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  15. Geo-availability integration a la CosmosDB for Consumption Plan

    For Functions in a Consumption Plan, it's a bit arduous to get them to be geo-distributed (have to set up deployment to all the various regions you want to support, add APIM/Traffic Manager to handle). It would be super awesome if Functions had a setup like CosmosDB where you deployed them once, then "lit up" the geos you want the code replicated to. Then, not too much different than the request in #214 , an "invisible" Traffic Manager service could be provided on the endpoint for the Function to hit the nearest geo to the end user.

    3 votes
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  16. Fine grained function billing please

    Please add a more fine grained billing please.

    A minimum execution of 100 ms and 128 MB is to coarse. A lot of my functions execute within 10ms or less and use less than 128 MB of RAM.

    Please add more fine grained executions possible (10ms or even per ms) and in smaller memory steps, maybe 16 or 32 MB.

    Also make async execution time not count toward function execution time, because if is often not in our control (waiting for an slow external service, database or slow response writing because the caller of the Azure Function has a very…

    3 votes
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  17. Ruby functions

    Be able to write Azure functions in Ruby

    3 votes
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  18. consumption plan firewall enabled

    Currently function apps is not working in consumption plan if we have firewall enabled in Event hub & Storage. We need support for this.

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

    This is current support in the Functions Premium plan. You will need to configure service endpoints on your EH and storage account, virtual network integration on your function app, and enable virtual network triggers.

    https://docs.microsoft.com/en-us/azure/azure-functions/functions-networking-options#virtual-network-triggers-non-http

    Support for the Consumption plan has no ETA, so keep the votes coming!

    Alex
    Azure Functions PM Team

  19. Add an empty / drain trigger to Azure Storage Queues

    Currently there seems to be no easy way to run code as soon as a Storage Queue has been emptied. It would be great to have an empty or drain trigger to call a different Azure Function for some pre-processing of batch jobs.

    3 votes
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  20. Reduce the price of Premium instances

    I could run a VM that costs me much less for the same configuration. To me, the price for pre-warmed instances seems too high.

    2 votes
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