ExecutionContext in Azure Function IWebJobsStartup implementation
Use below code ,It worked for me.
var executioncontextoptions = builder.Services.BuildServiceProvider()
.GetService<IOptions<ExecutionContextOptions>>().Value;
var currentDirectory = executioncontextoptions.AppDirectory;
configuration = configurationBuilder.SetBasePath(currentDirectory)
.AddJsonFile(ConfigFile, optional: false, reloadOnChange: true)
.Build();
You don't have the ExecutionContext
since your Azure Function is not yet processing an actual function call. But you don't need it either - the local.settings.json is automatically parsed into the environment variables.
If you really need the directory, you can use %HOME%/site/wwwroot
in Azure, and AzureWebJobsScriptRoot
when running locally. This is the equivalent of FunctionAppDirectory
.
This is also a good discussion about this topic.
public void Configure(IWebJobsBuilder builder)
{
var local_root = Environment.GetEnvironmentVariable("AzureWebJobsScriptRoot");
var azure_root = $"{Environment.GetEnvironmentVariable("HOME")}/site/wwwroot";
var actual_root = local_root ?? azure_root;
var config = new Microsoft.Extensions.Configuration.ConfigurationBuilder()
.SetBasePath(actual_root)
.AddJsonFile("SomeOther.json")
.AddEnvironmentVariables()
.Build();
var appInsightsSetting = config.GetSection("APPINSIGHTS_INSTRUMENTATIONKEY");
string val = appInsightsSetting.Value;
var helloSetting = config.GetSection("hello");
string val = helloSetting.Value;
//...
}
Example local.settings.json:
{
"IsEncrypted": false,
"Values": {
"APPINSIGHTS_INSTRUMENTATIONKEY": "123456..."
}
}
Example SomeOther.json
{
"hello": "world"
}