import type { S3Client } from "@aws-sdk/client-s3";
import type { Adapter } from "../index.js";
export interface FilebaseAdapterOptions {
    /** Filebase bucket name. The adapter scopes all operations to it. */
    bucket: string;
    /**
     * Filebase S3 endpoint. Defaults to `https://s3.filebase.com` — Filebase
     * runs a single global S3-compatible gateway that fronts IPFS, Sia, and
     * Storj storage networks (the network is chosen per-bucket in the
     * dashboard, not per-request).
     */
    endpoint?: string;
    /**
     * Static credentials. Falls back to `FILEBASE_ACCESS_KEY_ID`; required if
     * that env var isn't set.
     */
    accessKeyId?: string;
    /**
     * Static credentials. Falls back to `FILEBASE_SECRET_ACCESS_KEY`; required
     * if that env var isn't set.
     */
    secretAccessKey?: string;
    /**
     * SigV4 region. Defaults to `"us-east-1"`. Filebase ignores it for routing
     * but the SigV4 signature still requires *some* value.
     */
    region?: string;
    /**
     * Use path-style addressing (`/<bucket>/<key>`) rather than virtual-hosted
     * style. Defaults to `false` — Filebase supports virtual-hosted style on
     * the bucket subdomain (`<bucket>.s3.filebase.com`).
     */
    forcePathStyle?: boolean;
    /**
     * Origin used to build URLs from `url()`. When set, `url(key)` returns
     * `${publicBaseUrl}/${key}` and skips signing. Filebase serves public
     * objects via per-network gateways (e.g. an IPFS CID gateway); the natural
     * value is whatever gateway URL the dashboard exposes for your bucket.
     * When unset, `url()` falls back to a presigned GetObject (default
     * expiry: 1 hour).
     */
    publicBaseUrl?: string;
    /**
     * Default expiry, in seconds, for the presigned URLs returned by `url()`
     * when `publicBaseUrl` is not set. Defaults to 3600 (1 hour).
     */
    defaultUrlExpiresIn?: number;
}
export type FilebaseAdapter = Adapter<S3Client>;
export declare const filebase: (opts: FilebaseAdapterOptions) => FilebaseAdapter;
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