API reference › @evolu/sqlite-wasm › c-api › sqlite3_backup_init

function sqlite3_backup_init(
  deps: SqliteWasmDep,
): (
  pDest: SqliteDbPtr,
  zDestName: CStringPtr,
  pSource: SqliteDbPtr,
  zSourceName: CStringPtr,
) => 0 | SqliteBackupPtr;

Defined in: packages/sqlite-wasm/src/CApi.ts:1566

Prepares to copy the database zSourceName of pSource, such as main, into the database zDestName of pDest, which sqlite3_backup_step does, and returns the backup, or NULL with the error in pDest. It fails while pDest has any transaction open, when both are the same connection, and for an unknown database name.

Wasm type i(iiii). Signature ["sqlite3_backup_init", "sqlite3_backup*", "sqlite3*", "string", "sqlite3*", "string"] from SQLite's table.

See https://sqlite.org/c3ref/backup_finish.html.

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