Reading settings from a Azure Function

Note that for Azure Functions v2 this is no longer true.The following is from Jon Gallant's blog:

For Azure Functions v2, the ConfigurationManager is not supported and you must use the ASP.NET Core Configuration system:

1. Include the following using statement:

   using Microsoft.Extensions.Configuration;

2. Include the ExecutionContext as a parameter

   public static void Run(InboundMessage inboundMessage,     TraceWriter log,    out string outboundMessage,     ExecutionContext context)

3. Get the IConfiguration Root

   var config = new ConfigurationBuilder()    .SetBasePath(context.FunctionAppDirectory)    .AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)    .AddEnvironmentVariables()    .Build();

4. And use it to reference AppSettings keys

   var password = config["password"]

When debugging locally, it gets the settings from local.settings.json under the "Values" keyword. When running in Azure, it gets the settings from the Application settings tab.

You can use System.Environment.GetEnvironmentVariable like this:

var value = Environment.GetEnvironmentVariable("your_key_here")

This gets settings whenever you're working locally or on Azure.

You need to go to Platform Features -> Application settings and add it there.

Add the setting under App settings.

Reading the setting can be done by first adding this at the top:

using System.Configuration;

And then reading a setting with:

string setting = ConfigurationManager.AppSettings["url"];

Where url is your setting key. The setting variable will contain your setting value.