preRequest property

Future<void> Function({required Map<String, dynamic> body, required Map<String, String> headers, required Map<String, String> params})? preRequest

Called before the HTTP request is sent.

Receives mutable headers, params, and body maps. Any changes made to these maps are forwarded to the actual request.

Implementation

final Future<void> Function({
required Map<String, String> headers,
required Map<String, String> params,
required Map<String, dynamic> body,
})? preRequest;