HTTPTrigger Azure Function with CosmosDb input is not working after deployment - azure

Question

I have created below HttpTrigger function which takes CosmosDb item as input. This code works perfectly fine on when run locally. I am using Visual Studio Code to create function and deploying to Azure after successfully ran locally. But it doesn't work on Azure, it doesn't give error or it seems it not getting any response.
public static class HttpTriggerWithCosmosDb
{
[FunctionName("HttpTriggerWithCosmosDb")]
public static async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = "HttpTriggerWithCosmosDb/{id}")] HttpRequest req,
[CosmosDB(
databaseName : "func-io-learn-db",
collectionName : "Bookmarks",
ConnectionStringSetting = "CosmosDBConnection",
Id = "{id}",
PartitionKey = "{id}"
)] BookMarkItem item,
ILogger log)
{
log.LogInformation("C# HTTP trigger function processed a request.");
string name = item.Url;
Console.Write( item.Id);
string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
dynamic data = JsonConvert.DeserializeObject(requestBody);
name = name ?? data?.name;
string responseMessage = string.IsNullOrEmpty(name)
? "This HTTP triggered function executed successfully. Pass a name in the query string or in the request body for a personalized response."
: $"Hello, {name}. This HTTP triggered function executed successfully.";
return new OkObjectResult(responseMessage);
}
}
While publishing, in output I see below message:
HttpTriggerCSharp1:
https://nps-func.azurewebsites.net/api/HttpTriggerCSharp1
TestMessage: https://nps-func.azurewebsites.net/api/TestMessage
5:33:02 PM nps-func: WARNING: Some http trigger urls cannot be
displayed in the output window because they require an authentication
token.
It is not showing This above function in response.
Update:
Full code can be found on Git

Answer 1

I got the issue, what is happening here. I had to manually add CosmosDBConnection to Azure with Azure Function:Add New Settings... command before I publish the function.
I am new to function, I was not aware this is how app_settings need to be added.