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: ^0.0.4

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

The collection is emitted as plain JSON (no extra dependencies) and 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