prisma-driver-adapter-implementation

Complete reference for implementing Prisma v7 driver adapters with transaction lifecycle, error mapping, and type conversion details. This skill provides everything needed to implement a Prisma ORM v7 driver adapter for any database. Import from @prisma/driver-adapter-utils : Critical : commit() and rollback() are lifecycle hooks only . They must NOT issue SQL. Prisma sends COMMIT / ROLLBACK via executeRaw on the transaction object. Convert Prisma argument values to driver-native types: Convert driver result values to Prisma-expected types: When the driver doesn't provide type metadata, infer from JS values: Map driver errors to MappedError for Prisma to handle correctly: Test the adapter directly with the raw database driver: Test the full integration: Before considering the adapter complete: - Covers four required interfaces: SqlDriverAdapter , Transaction , SqlMigrationAwareDriverAdapterFactory , and SqlQueryable , with full method signatures and lifecycle requirements - Transaction commit() and rollback() are lifecycle hooks only; Prisma sends SQL via executeRaw , not these methods - Includes argument mapping (string→int/bigint/float, base64→bytes) and row mapping (bigint→string, Date→ISO, JSON→string) with column type inference fallbacks - Provides database-specific guidance for SQLite, PostgreSQL, and MySQL, plus error conversion patterns for constraint violations and...