Azure Mongo Cosmos Ping Test Equivalent

Question

I want to do a Ping Like Operation on a Cosmos/Mongo/DocumentDB in Azure.

The Collection Has Zero Documents in it.

I am Using the Microsoft.Azure.Documents.Client (Microsoft.Azure.Documents.Client.dll)

I want to do something that would exercise a full round trip and auth cycle to the Cosmos DB to prove the general integrity of the config before any documents are in the collection.

I was looking for an operation on DocumentClient that would prove or disprove all the configuration is correct at runtime, like a Ping.

Answer 1

You could call _client.OpenAsync(cancellationToken), which will validate your configuration and throw if there are any exceptions connecting to the database.

In fact, it is recommended that you call this on service/app startup to avoid latency on your first request.

Reference:

• https://learn.microsoft.com/en-us/dotnet/api/microsoft.azure.documents.client.documentclient.openasync?view=azure-dotnet
• https://learn.microsoft.com/en-us/azure/cosmos-db/performance-tips