Principle:Cohere ai Cohere python Client Initialization
| Metadata | |
|---|---|
| Source Repo | Cohere Python SDK |
| Source Doc | Cohere Docs |
| Domains | SDK_Configuration, Client_Architecture |
| Last Updated | 2026-02-15 14:00 GMT |
Overview
A design pattern for constructing configured API client instances that encapsulate authentication, transport, and endpoint routing.
Description
Client Initialization is the process of creating a fully configured SDK client that can make API calls. In the Cohere SDK, ClientV2 combines both V1 and V2 API capabilities through multiple inheritance (V2Client + Client). The initialization process sets up authentication via the client wrapper, configures the HTTP transport layer (httpx), establishes the base URL, and creates a thread pool for concurrent operations like embed batching. A _CombinedRawClient proxy resolves attribute collisions between V1 and V2 raw clients.
Usage
Use this principle as the first step in any Cohere SDK workflow. A properly initialized client is required before calling chat, embed, rerank, or any other API method. Choose ClientV2 for access to both V1 and V2 APIs, or Client for V1-only access.
Theoretical Basis
The client follows the Facade pattern, providing a unified interface to a complex subsystem of HTTP transport, authentication, serialization, and API versioning. Multiple inheritance with a proxy object (CombinedRawClient) enables seamless access to both API versions through a single client instance.