developer_tools_network

Network HTTP inspector for developer_tools. Inspect HTTP requests and responses from the in-app debug overlay — an inlined, rebranded fork of Alice with no external alice dependency.

Features

• Capture HTTP calls via NetworkDioAdapter (Dio interceptor).
• Browse requests/responses, search and sort, view stats.
• Shake-to-open and notification entry points.
• Export Postman collection — share all captured calls as a Postman Collection (v2.1) file.

Install

dependencies:
  developer_tools_network: ^0.0.3

Usage

Register the extension with developer_tools and attach the Dio adapter:

final networkInspector = NetworkInspector(
  configuration: NetworkInspectorConfiguration(navigatorKey: navigatorKey),
);

dio.interceptors.add(NetworkDioAdapter(inspector: networkInspector));

MaterialApp(
  navigatorKey: navigatorKey,
  builder: DeveloperTools.builder(
    extensions: [DeveloperToolsNetwork(instance: networkInspector)],
  ),
);

Open the inspector (overlay entry, notification, or shake), then use the tools in the calls-list app bar.

Export to Postman

Tap the share icon in the inspector calls list to turn every captured call into a Postman Collection (v2.1) and open the share sheet. The resulting *.postman_collection.json file imports directly into Postman.

Each request item preserves the full captured data:

• HTTP method and full URL (protocol, host, path, query params)
• Request headers (request cookies are folded into a Cookie header)
• Request body — raw JSON/text, or multipart form-data (fields and files)
• The captured response as a saved example (status code + reason, headers, body)
• Extra metadata with no native Postman field (client, duration, sizes, timestamps) preserved in the request description

Built on the postman_collection package.

The collection can also be built programmatically from a list of captured NetworkHttpCalls:

final collection = NetworkPostmanExportHelper.buildCollection(
  name: 'My App Network',
  calls: calls,
);
final json = NetworkPostmanExportHelper.encode(collection);

License

MIT