56 lines
2.1 KiB
TypeScript
56 lines
2.1 KiB
TypeScript
import type { RouteDefaultsInput } from "../route/client"
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import { Auth } from "../route/auth"
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import type { ProviderAuthOption } from "../route/auth-options"
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import type { ProviderPackage } from "../provider-package"
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import { ProviderID, type ModelID } from "../schema"
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import { AnthropicMessages } from "../protocols/anthropic-messages"
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import { AnthropicCompatible } from "./anthropic-compatible"
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export const id = ProviderID.make("anthropic")
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export const routes = [AnthropicMessages.route]
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export type Config = RouteDefaultsInput & ProviderAuthOption<"optional"> & { readonly baseURL?: string }
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export type Settings = ProviderPackage.Settings &
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(
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| { readonly apiKey?: string; readonly authToken?: never }
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| { readonly apiKey?: never; readonly authToken?: string }
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) & {
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readonly baseURL?: string
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}
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const auth = (options: ProviderAuthOption<"optional">) => {
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if ("auth" in options && options.auth) return options.auth
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return Auth.optional("apiKey" in options ? options.apiKey : undefined, "apiKey")
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.orElse(Auth.config("ANTHROPIC_API_KEY"))
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.pipe(Auth.header("x-api-key"))
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}
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export const configure = (input: Config = {}) => {
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const { apiKey: _, auth: _auth, baseURL, ...rest } = input
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const compatible = AnthropicCompatible.configure({
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...rest,
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auth: auth(input),
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baseURL: baseURL ?? AnthropicMessages.DEFAULT_BASE_URL,
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provider: id,
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})
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return {
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id,
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model: (modelID: string | ModelID) => compatible.model(modelID),
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configure,
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}
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}
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export const provider = configure()
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export const model: ProviderPackage.Definition<Settings>["model"] = (modelID, settings) => {
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if (settings.apiKey !== undefined && settings.authToken !== undefined)
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throw new Error("Anthropic apiKey cannot be combined with authToken")
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return configure({
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...(settings.authToken === undefined ? { apiKey: settings.apiKey } : { auth: Auth.bearer(settings.authToken) }),
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baseURL: settings.baseURL,
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headers: settings.headers === undefined ? undefined : { ...settings.headers },
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http: settings.body === undefined ? undefined : { body: { ...settings.body } },
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limits: settings.limits,
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}).model(modelID)
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}
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