pg-ts

Typescript wrapper around node-postgres

v5.0.0

• Eitherish functions no longer return a simple Error type in their Lefts. Instead, we now provide a union of concrete error types that make it explicit what the failure conditions are. Clients can pattern match on error type using the provided ErrorPredicate functions, e.g, isRowCountError. Application-defined error types are propagated through the pg-ts stack.

• Commonly-grouped errors are provided as unions, e.g. ConnectionError<L>, TransactionError<L>.

• Renamed withConnectionE to widenToConnectionE for clarity and to differentiate from the withConnectionE function defined on Connection.

• withTransaction has been replaced by three similar functions that assist you depending on whether you want to go from:

  Outer Context	Inner Context	Function to use
  Connection	Connection	withTransactionC
  ConnectionE<E>	ConnectionE<E>	withTransactionE
  ConnectionE<E>	Connection	withTransactionEC

• Fixed the types setting in package.json, so imports should now default to from "pg-ts" instead of from "pg-ts/dist".

• Integration tests are provided. A DATABASE_URL environment variable must be present. The test suite will create the table it needs and will truncate before each test. Every query type is tested and transaction commit/rollback behaviour is also verified.