Can Azure Functions written in Node.js access Conn

Question

The App Settings for an Azure Function App contain values for database connection strings that can be set in the portal. In C# they can be accessed using

ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString

For an Azure Function written in JavaScript, is there an equivalent construction that has access to the connection strings? I understand that they can be stored in the application settings, but since there is a section on the portal devoted to connection strings, I am asking if this has any application to Node.js functions.

Answer 1

I ran into same issue and I was under the same impression that we cannot access connection strings in NodeJs application through Runtime Environment variable.

But after thorough checking in the Microsoft documentation, got to know that we can access the connection strings in Node JS, PHP, etc., which are of custom type as below

CUSTOMCONNSTR_<connection_string>

Ref: https://docs.microsoft.com/en-us/azure/app-service/web-sites-configure#connection-strings

Answer 2

The distinction between app settings and connection strings makes sense in .NET, but not as much in Node. When using Node, the suggestion is to use app settings for all your secrets and connection strings. You can them access them using process.env.YourAppSetting.

And to answer your question directly, there is no easy way to access connection strings in Node, unless you start making assumptions on prefixes that are not guaranteed to work forever.

Answer 3

try

process.env['YOUR_APP_SETTING'];

Microsoft Documentation