electric-sql/electric @electric-sql/client@1.2.0

on GitHub

Minor Changes

• 18df5a5: Add bidirectional column mapping API for query filters with built-in snake_case ↔ camelCase support. Introduces columnMapper option to ShapeStream that handles both encoding (TypeScript → Database) for WHERE clauses and decoding (Database → TypeScript) for results. Includes snakeCamelMapper() helper for automatic snake_case/camelCase conversion and createColumnMapper() for custom mappings. The new API deprecates using transformer solely for column renaming, though transformer remains useful for value transformations like encryption.

Patch Changes

• f0b83fa: Fix subset__params to use constant parameter name for proxy configurations

  Changed subsetparams from deepObject style (subsetparams[1], subsetparams[2]) to JSON serialization (subsetparams={"1":"value1","2":"value2"}). This allows proxy configurations to match the constant parameter name "subset__params" in ELECTRIC_PROTOCOL_QUERY_PARAMS without needing dynamic pattern matching.

• cd15a56: Fix multiple renders from cached up-to-date messages on page refresh. When a shape receives multiple updates within the HTTP cache window (60s), each update ends with an up-to-date control message that gets cached. On page refresh, these cached responses replay rapidly, causing multiple renders. This change implements cursor-based detection to suppress cached up-to-date notifications until a fresh response (with a new cursor) arrives from the server, ensuring only one render occurs.