How to check the status of a Function

[kin0992]

I have a function app using the @azure/functions npm package version 4.5.1, with the following triggers defined:

app.http('info', {
  methods: ['GET'],
  authLevel: 'anonymous',
  handler: <info-handler-function>,
  route: 'info',
});

app.cosmosDB('consumer', {
  connection: 'ConsumerConnection',
  databaseName: <database-name>,
  containerName: <container-name>,
  leaseContainerName: <lease-container-name>,
  leaseContainerPrefix: <lease-container-prefix>,
  handler: <consumer-handler-function>,
});

If I omit the ConsumerConnection environment variable and run the app, the function still works (e.g., the HTTP endpoints respond) even if the consumer trigger is not properly configured.
When running locally and removing ConsumerConnection from the local.settings.json file, the function still works but logs this message:

Microsoft.Azure.WebJobs.Host: Error indexing method 'Functions.consumer'. Microsoft.Azure.WebJobs.Extensions.CosmosDB:  
Cannot create container information for <container-name> in database <database-name> with lease <lease-container-name> in database <database-name> : 
Cosmos DB connection configuration 'ConsumerConnection' does not exist. Make sure that it is a defined App Setting. 
Microsoft.Azure.WebJobs.Extensions.CosmosDB: Cosmos DB connection configuration 'ConsumerConnection' does not exist. 
Make sure that it is a defined App Setting.

My goal is to return a 500 error on the /info endpoint if there are issues (like with the cosmosDB trigger). Is there a method within the nodejs-sdk that exposes the status of a function?