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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. Golang support for Azure Functions

    C# and other environments are already supported; it would be nice if Go / Golang was one of them. I'd love to handle web requests using Golang + Azure Functions.

    It could provide the "HTTP Requests" via the stdin, while the "HTTP Response" can be given via the stdout. (or whatever those two are called on Windows ;-) )

    252 votes

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    36 comments  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
  2. Support for native Rust Azure Functions

    As of February 2019, Azure Functions support native .NET, JavaScript and Python.

    Could we please have native support to run Azure Functions written in Rust? To host Rust functions currently we have to pay for a Linux App Service plan and embed our functions within a Docker container. This is expensive just to run a few microservices written in Rust.

    Peter Huene has an excellent project for anyone interest in writing Azure Functions in Rust....

    https://github.com/peterhuene/azure-functions-rs

    224 votes

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    20 comments  ·  Flag idea as inappropriate…  ·  Admin →
  3. Support for Azure Managed Service Identities in EventHub (and other) triggers

    In Event Hub, I can add my Function App's MSI as a data reader, but in the function I cannot use trigger bindings to read from the queue without using a SecureAccess Key. We are trying to go password free wherever possible, and Azure has been promoting this course of action, so why do we need secret keys for reading from the queue? It then forces us to create and share a secret key for partner teams to read from our queue, rather than just permissioning them in Event Hub.

    197 votes

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    9 comments  ·  Bindings  ·  Flag idea as inappropriate…  ·  Admin →
  4. Enable custom 3rd party authentication providers

    Outside of out of the box providers like facebook and google, provide samples and guidance on how to authenticate with others like LinkedIn.

    171 votes

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    10 comments  ·  Flag idea as inappropriate…  ·  Admin →
  5. Support F# scripts (.fsx) in v2 and v3

    F# script usage is about to become much more prevalent due to the improved "#r nuget" imports in F#5. Azure Functions v2 and v3 should support F# scripts so that we can avoid having to create a "function project" when a a simple .fsx would suffice.

    156 votes

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    1 comment  ·  Flag idea as inappropriate…  ·  Admin →
  6. Allow Key Vault references to access secrets behind Key Vault Firewall

    Key Vault references cannot currently be used to access secrets in a vault that has been configured with Key Vault Firewall / service endpoints.

    It should be possible to resolve secrets from Vaults configured this way (provided the web app / function app is configured with the right VNET integration).

    154 votes

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    24 comments  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
  7. ASP.NET Core MVC/Web API support

    Enable developers to create serverless applications using the ASP.NET Core Web API framework.

    122 votes

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    15 comments  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
  8. SQL Azure trigger support

    Azure functions are great, but a lot of application logic is driven by data in SQL Azure DBs. It would be great to have a trigger based on a SQL Azure row data.

    109 votes

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    6 comments  ·  Flag idea as inappropriate…  ·  Admin →
  9. Trigger Azure Function From Table Storage

    Allow create, update and delete on a table storage row to trigger an Azure Function.

    88 votes

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    7 comments  ·  Flag idea as inappropriate…  ·  Admin →
  10. Add max calls/per day|hour|minute configuration for throttling

    Now- any light ddos attack that Azure will not recognize- will affect me and my account. If I know that my service shouldn't receive more than 10000 calls per day, but I can't setup limits on incoming requests.

    "Daily Usage Quota (GB-Sec)"- not bad idea, but it's something internal and synthetic for me. Call/per day- is much more native metrics for users.

    88 votes

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    12 comments  ·  Flag idea as inappropriate…  ·  Admin →

    Here’s the latest as there seem to be 2 types of ask here and so two seperate updates. Need comments for if this issue should close to be focused on one or other:

    1. I want to control how many calls my function can make to another API (the 3rd party API rate limiting).
    – In all plans we now have a way to specify the max instances. This can limit how far a function app instance can scale: https://docs.microsoft.com/en-us/azure/azure-functions/functions-scale#limit-scale-out

    2. I want to stop my function from triggering more than x times an hour.
    Nothing planned in this in the short term. Using API Management for HTTP functions with throttles would be our recommendation for HTTP, nothing out of box for non-HTTP triggers yet.

  11. Global exception handler

    Make it possible to have a global exception handler in C# Azure Functions App project - to be able to handle exceptions in one central location.

    80 votes

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    0 comments  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
  12. Support for R

    Are there any plans to support R scripts in the future?

    80 votes

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    18 comments  ·  Flag idea as inappropriate…  ·  Admin →
  13. Should support trigger for Azure Files

    This would make hybrid integration scenarios for customers with no IT trivial, anybody can drop a file in a share.

    66 votes

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    5 comments  ·  Flag idea as inappropriate…  ·  Admin →
  14. Handle Storage Queue/Service Bus messages in batches

    I want to be able to handle multiple messages per function call - we are using a third-party web service which works much more efficiently if the messages are passed to it in batches. I know we could use a timer to trigger the function and grab messages from the queue ourselves but if we do that the function won't scale out automatically.

    65 votes

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    3 comments  ·  Flag idea as inappropriate…  ·  Admin →
  15. Allow moving Function from Consumption to Service Plan

    Currently if you deploy your function on a consumption plan there is no way to move it to an existing Service Plan like any other App Service.
    You would need to delete the existing one and redeploy it..

    61 votes

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    2 comments  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
  16. Support gRPC in azure function as trigger

    gRPC is a standard for microservices and cloud-native solutions nowadays. It should be supported by azure functions, durable functions and API Management.

    60 votes

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    1 comment  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
  17. Add C++ support for Azure Functions

    Allow C++ binaries to contains Azure Functions. It could be done by invoking the main in an executable, or a DLL with a specific export method with predefined signature.

    C++ allows to control memory usage and allow users to be incredibly fast when used properly. In an environment where scaling is needed, squeezing a few seconds of CPU or lowering a few KB of RAM can translate to hundreds or thousands of dollars in savings.

    If memory leaks are a concern, putting aside the fact that C# code can also leak, you could create fail safes for Azure Functions. A…

    54 votes

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    3 comments  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
  18. Julia lang support for Azure Functions

    With Julia lang reaching v1.0 last year, it is emerging as a force in machine learning and other scientific computing applications,

    https://juliacomputing.com/case-studies/

    In particular, BlackRock's Aladdin, Conning Asset Management, and Aviva are all using Julia for financial risk modeling and I see a great opportunity for Julia to impact finance among other things. I'd love to be able to use Julia in Azure Functions for my fintech startup.

    46 votes

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    unplanned  ·  6 comments  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
  19. Function App Service support for Azure B2C

    If I build a web app using Azure B2C for authentication, I'd like to use it as the authentication provider for Azure Functions too. Although I can set up the same providers, using B2C would be cleaner and enable me to support users with local logins (traditional username and password) too.

    42 votes

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    0 comments  ·  Flag idea as inappropriate…  ·  Admin →
  20. Don't 'hardcode' the storage account connection string for the storage account that backs azure functions

    Currently each Function App has an application setting string "WEBSITE_CONTENTAZUREFILECONNECTIONSTRING"which is a fixed (=hardcoded) connection string. This breaks when performing key rotation on the connection string and is opaque to diagnose since that setting is automatically setup by the portal UI/wizard.

    Can you instead just store the subscription ID and storage account name and then fetch the latest connection string for the storage account using the management API? This will make sure that the function app survives storage account key rotations

    40 votes

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    5 comments  ·  Feature  ·  Flag idea as inappropriate…  ·  Admin →
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