expression | SignalWire

Add a pattern-based response that does not require an API call. Expressions are evaluated in order; the first matching pattern wins.

Parameters

testValue

stringRequired

Template string to test (e.g., "${args.command}").

pattern

string | RegExpRequired

Regex pattern to match against the test value.

output

FunctionResultRequired

FunctionResult to return when the pattern matches.

nomatchOutput

FunctionResult

Optional FunctionResult to return when the pattern does not match.

Returns

DataMap — Self for method chaining.

Example

1 import { DataMap, FunctionResult } from '@signalwire/sdk';
2 
3 const dm = new DataMap('route_command');
4 dm.expression(
5   '${args.command}',
6   /play.*/,
7   new FunctionResult('Playing file.'),
8   new FunctionResult('Unknown command.'),
9 );