• Kusto bindings for Azure Functions - Preview
  • Table of Contents
  • Introduction
  • Input Bindings
  • Output Bindings
  • Trademarks

This repository contains the Kusto bindings for Azure Functions extension code as well as a quick start tutorial and samples illustrating how to use the binding in different ways. The types of bindings supported are:

Takes a KQL query or KQL function to run (with optional parameters) and returns the output to the function. The input binding takes the following attributes

• Database: The database against which the query has to be executed

• ManagedServiceIdentity: A managed identity can be used to connect to Kusto. To use a System managed identity, use "system", any other identity names are interpreted as user managed identity

• KqlCommand: The KqlQuery that has to be executed. Can be a KQL query or a KQL Function call

• KqlParameters: Parameters that act as predicate variables for the KqlCommand. For example "@name={name},@Id={id}" where the parameters {name} and {id} will be substituted at runtime with actual values acting as predicates

• Connection: The name of the variable that holds the connection string, resolved through environment variables or through function app settings. Defaults to lookup on the variable KustoConnectionString, at runtime this variable will be looked up against the environment. Documentation on connection string can be found at Kusto connection strings e.g.: "KustoConnectionString": "Data Source=https://_**cluster**_.kusto.windows.net;Database=_**Database**_;Fed=True;AppClientId=_**AppId**_;AppKey=_**AppKey**_;Authority Id=_**TenantId**_ Note that the application id should atleast have viewer privileges on the table(s)/function(s) being queried in the KqlCommand

• ClientRequestProperties: Optional attribute to pass client request properties to the Kusto client

Starting versions 1.0.8-Preview there is support for management commands. A sample is available here

Takes row(s) and inserts them into the Kusto table .

• Database: The database against which the query has to be executed

• TableName: The table to ingest the data into

• ManagedServiceIdentity: A managed identity can be used to connect to Kusto. To use a System managed identity, use "system", any other identity names are interpreted as user managed identity

• Connection: Refer Connection attribute above.Note that the application id should have ingest privileges on the table being ingested into

• MappingRef: Optional attribute to pass a mapping ref that is already defined in the ADX cluster

• DataFormat: The default dataformat is multijson/json. This can be set to text formats supported in the datasource format enumeration. Samples are validated and provided for csv and JSON formats.

Samples for C# are available and available at the following. This can run with local functions framework. Setup required for the run is available at the location

• .NET (C# in-process)
• .NET (C# dot command examples)
• .NET (C# isolated)
• Java
• Node
• Python

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