existsCollection: Checks whether a collection exists.
In timoklimmer/documentdbr: Use Azure DocumentDB from R

Description Usage Arguments Value Examples

Checks whether a collection exists.

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

`connectionInfo`	A DocumentDB connection info object generated with getDocumentDBConnectionInfo().
`collectionId`	The ID of the collection to check.
`databaseId`	Optional. The ID of the database in which to check. If no database ID is specified, the ID will be taken from the connection info.
`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==",
  databaseId = "MyDatabase"
)

# check if the MyCollection collection exists (within MyDatabase as specified in the connection info)
# note: alternatively, the database id can be specified as parameter
if (existsCollection(myDocDB, "MyCollection")$result) {
  print("Yes, the collection exists.")
} else {
  print("No, the collection does not exist.")
}