gemini_openai_claude 1.0.0

Structured JSON output from Gemini, OpenAI and Claude with one schema. Images, actionable errors, no vendor SDKs. Unofficial.

example/main.dart

// Run: GEMINI_API_KEY=... dart run example/main.dart
// (or OPENAI_API_KEY / ANTHROPIC_API_KEY). With no key it uses DemoProvider.
import 'dart:io';

import 'package:gemini_openai_claude/gemini_openai_claude.dart';

Future<void> main() async {
  final env = Platform.environment;
  final (AiAdapter ai, String key) = switch (env) {
    {'GEMINI_API_KEY': final k} => (GeminiProvider(), k),
    {'OPENAI_API_KEY': final k} => (OpenAiProvider(), k),
    {'ANTHROPIC_API_KEY': final k} => (ClaudeProvider(), k),
    _ => (const DemoProvider(), ''),
  };

  final spec = PromptSpec(
    instruction: 'Suggest a short title and three tags for this note: "Fix the bike brakes before Sunday."',
    schema: const {
      'type': 'object',
      'properties': {
        'title': {'type': 'string'},
        'tags': {
          'type': 'array',
          'items': {'type': 'string'},
        },
      },
      'required': ['title', 'tags'],
    },
    demo: () => {
      'title': 'Bike brakes',
      'tags': ['bike', 'repair', 'weekend'],
    },
  );

  try {
    final json = await ai.complete(spec: spec, apiKey: key);
    stdout.writeln('${ai.label()}: $json');
  } on ProviderException catch (e) {
    stderr.writeln('${e.kind.name}: ${e.message}');
    if (e.detail != null) stderr.writeln(e.detail);
    exitCode = 1;
  } finally {
    ai.dispose();
  }
}