existsDatabase: Checks whether a database exists.
In timoklimmer/documentdbr: Use Azure DocumentDB from R

Description Usage Arguments Value Examples

Checks whether a database exists.

1 2	existsDatabase(connectionInfo, databaseId, consistencyLevel = "", sessionToken = "", userAgent = "")

`connectionInfo`	A DocumentDB connection info object generated with getDocumentDBConnectionInfo().
`databaseId`	The ID of the database to check.
`consistencyLevel`	Optional. The consistency level override. The valid values are: Strong, Bounded, Session, or Eventual (in order of strongest to weakest). The override must be the same or weaker than the account's configured consistency level.
`sessionToken`	Optional. A string token used with session level consistency. For more information, see Using consistency levels in DocumentDB.
`userAgent`	Optional. A string that specifies the client user agent performing the request. The recommended format is user agent name/version. For example, the official DocumentDB .NET SDK sets the User-Agent string to Microsoft.Document.Client/1.0.0.0. A custom user-agent could be something like ContosoMarketingApp/1.0.0.

Check result and some information extracted from the REST API response such as request charge and session token.

# load the documentdbr package
library(documentdbr)

# setup connection infos
myDocDB <- getDocumentDBConnectionInfo(
  accountUrl = "https://somedocumentdbaccount.documents.azure.com",
  primaryOrSecondaryKey = "t0C36UstTJ4c6vdkFyImkaoB6L1yeQidadg6wasSwmaK2s8JxFbEXQ0e3AW9KE1xQqmOn0WtOi3lxloStmSeeg==",
)

# check if the MyDatabase database exists
if (existsDatabase(myDocDB, "MyDatabase")$result) {
  print("Yes, the database exists.")
} else {
  print("No, the database does not exist.")
}