Function fetchModelsFromProvider

src/api/providers/fetchers/modelCache.ts:183–231

* Fetch models from the provider API. * Extracted to avoid duplication between getModels() and refreshModels(). * * @param options - Provider options for fetching models * @returns Fresh models from the provider API

(options: GetModelsOptions)

 * @returns Fresh models from the provider API
 */
async function fetchModelsFromProvider(options: GetModelsOptions): Promise<ModelRecord> {
	const { provider } = options

	let models: ModelRecord

	switch (provider) {
		case "openrouter":
			models = await getOpenRouterModels()
			break
		case "requesty":
			// Requesty models endpoint requires an API key for per-user custom policies.
			models = await getRequestyModels(options.baseUrl, options.apiKey)
			break
		case "unbound":
			models = await getUnboundModels(options.apiKey)
			break
		case "litellm":
			models = await getLiteLLMModels(options.apiKey ?? "", options.baseUrl)
			break
		case "ollama":
			models = await getOllamaModels(options.baseUrl, options.apiKey)
			break
		case "lmstudio":
			models = await getLMStudioModels(options.baseUrl)
			break
		case "vercel-ai-gateway":
			models = await getVercelAiGatewayModels()
			break
		case "opencode-go":
			models = await getOpencodeGoModels(options.apiKey)
			break
		case "poe":
			models = await getPoeModels(options.apiKey, options.baseUrl)
			break
		case "deepseek":
			models = await getDeepSeekModels(options.baseUrl, options.apiKey)
			break
		case "zoo-gateway":
			models = await getZooGatewayModels({ zooSessionToken: options.apiKey, zooGatewayBaseUrl: options.baseUrl })
			break
		default: {
			// Ensures router is exhaustively checked if RouterName is a strict union.
			const exhaustiveCheck: never = provider
			throw new Error(`Unknown provider: ${exhaustiveCheck}`)
		}
	}

	return models
}

/**
 * Get models from the cache or fetch them from the provider and cache them.