`DeriveHandler`

Command-scoped typed pre-action handler.

Derive handlers may:

validate resolved input and throw CLIError
return undefined to continue without changing context
return an object whose properties merge into ctx downstream

They cannot wrap downstream execution; use middleware for that.

Import: @kjanat/dreamcli
Export kind: type
Declared in: src/core/schema/command.ts
Source link: packages/dreamcli/src/core/schema/command.ts:376

Signatures

ts

type DeriveHandler<F extends Record<string, FlagBuilder<FlagConfig>>, A extends Record<string, ArgBuilder<ArgConfig>>, C extends Record<string, unknown>, Output extends Record<string, unknown> | undefined> = { (params: DeriveParams<F, A, C>): Output | Promise<Output>; };

See Also