delete()
Deletes a database.
Description
The delete() method deletes a database.
Considerations
When you delete a database, its data becomes inaccessible and is asynchronously deleted. As part of the deletion process, Fauna recursively deletes:
-
Any keys scoped to the database.
-
The database’s child databases, including any nested databases.
Deleting a database with a large number of keys can exceed Transactional Write Ops throughput limits and cause errors with a 429 HTTP status code.
Deleting a database with a large number of child databases can cause errors with a 440 HTTP status code.
To avoid throttling or timeouts, incrementally delete all keys and child databases before deleting the database. See delete all keys and delete all child databases.
Examples
Delete all child databases
To avoid timeouts, you can incrementally delete all child databases for a database before deleting the database itself.
To stay within transaction size
limits, use paginate() to
perform the deletions over several transactions instead of one.
// Gets all `Database` system collection documents.
// Uses `pageSize()` to limit the page size.
// Uses `paginate()` to project the after cursor.
let page = Database.all().pageSize(200).paginate()
// `paginate()` returns an object. The object's `data` property
// contains an array of `Database` documents.
let data = page.data
// Use `forEach()` to delete each `Database` document in the
// `data` array.
data.forEach(doc => doc.delete()
// Project the `after` cursor returned by `paginate()`.
// Use the cursor to iterate through the remaining pages.
page {
after
}{
after: "hdWDxoq..."
}Subsequent transactions use the cursor and
Set.paginate() to iterate
through the remaining pages:
// Uses `Set.paginate()` to iterate through pages.
let page = Set.paginate("hdWDxoq...")
let data = page.data
data.forEach(doc => doc.delete()
page {
after
}Is this article helpful?
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