Docs : SDK : openDatabase

openDatabase lets you retrieve your user's data. You also need to have a database open before storing or modifying user data. This API will return a promise that gets resolved once the database becomes available for use.

    userbase.openDatabase({ databaseName, changeHandler })
      .then(() => {
        // the database can now be used
      })
      .catch((e) => console.error(e))
  

Parameters

• databaseName [string | Len: 1-50] - The database name to use.
• changeHandler [function] - A callback that gets invoked when the database gets modified.
  • items [Array] - The full collection of items in the database, in insertion order.
    • itemId [string] - The item's unique identifier.
    • item [object] - The stored item.

Errors

• ParamsMustBeObject
• DatabaseAlreadyOpening
• DatabaseNameMustBeString
• DatabaseNameCannotBeBlank
• DatabaseNameTooLong
• ChangeHandlerMustBeFunction
• UserNotSignedIn
• ServiceUnavailable