GeminiClient class

Native Google Gemini API client with SSE streaming support.

Unlike OpenAI-compatible providers, the Gemini REST API uses a completely different authentication scheme (query-parameter API key instead of Bearer token), endpoint layout (/models/{model}:streamGenerateContent), and message format (contents / parts instead of messages).

This client translates the app's internal Message model into Gemini's request format and converts Gemini's SSE responses back into the unified StreamEvent types used throughout the codebase.

Inheritance

• Object
• ApiProvider
• GeminiClient

Constructors

GeminiClient(ApiConfig config)

Creates a client with the given Gemini config.

Properties

config → ApiConfig

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

createMessage({required List<Message> messages, required String systemPrompt, List<ToolDefinition> tools = const [], int? maxTokens}) → Future<Message>

Send a non-streaming completion via the Gemini generateContent endpoint.

override

createMessageStream({required List<Message> messages, required String systemPrompt, List<ToolDefinition> tools = const [], int? maxTokens}) → Stream<StreamEvent>

Stream a message completion via the Gemini streamGenerateContent endpoint.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited