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ProviderFactory

llm::provider

Trait ProviderFactory 

Source 
pub trait ProviderFactory: Sized {
    // Required methods
    fn from_env() -> impl Future<Output = LlmResult<Self>> + Send;
    fn with_model(self, model: &str) -> Self;
}
Expand description

Factory trait for constructing model providers from environment configuration.

This trait is separate from StreamingModelProvider because construction methods require Sized, which is incompatible with trait objects (Box<dyn StreamingModelProvider>). By splitting the factory methods into their own trait, the provider trait remains object-safe.

§Methods

  • async from_env() -> Result<Self> – Create a provider from environment variables (e.g. ANTHROPIC_API_KEY, OPENAI_API_KEY). Returns LlmError::MissingApiKey if the required variable is not set.

  • with_model(self, model: &str) -> Self – Set or override the model for this provider. Returns self for builder-style chaining.

§Example

use llm::{ProviderFactory, StreamingModelProvider};
use llm::providers::anthropic::AnthropicProvider;

let provider = AnthropicProvider::from_env().await
    .expect("ANTHROPIC_API_KEY must be set")
    .with_model("claude-sonnet-4-5-20250929");

println!("Using: {}", provider.display_name());

Required Methods§

Source

fn from_env() -> impl Future<Output = LlmResult<Self>> + Send

Create provider from environment variables and default configuration

Source

fn with_model(self, model: &str) -> Self

Set or update the model for this provider (builder pattern)

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§