@gensx/storage/dist/cjs/blob/types.d.ts

Cloud storage, blobs, sqlite, and vector database providers/hooks for GenSX.

import { Readable } from "stream";
/**
 * Error types for blob storage operations
 */
export type BlobErrorCode = "NOT_FOUND" | "PERMISSION_DENIED" | "CONFLICT" | "INVALID_ARGUMENT" | "INTERNAL_ERROR" | "NOT_IMPLEMENTED" | "NETWORK_ERROR";
/**
 * Abstract base error class for blob storage operations
 */
export declare abstract class BlobError extends Error {
    readonly code: BlobErrorCode;
    readonly cause?: Error | undefined;
    constructor(code: BlobErrorCode, message: string, cause?: Error | undefined);
}
/**
 * Error class for when a blob is not found
 */
export declare class BlobNotFoundError extends BlobError {
    constructor(message: string, cause?: Error);
}
/**
 * Error class for permission denied errors
 */
export declare class BlobPermissionDeniedError extends BlobError {
    constructor(message: string, cause?: Error);
}
/**
 * Error class for conflict errors (e.g., ETag mismatch)
 */
export declare class BlobConflictError extends BlobError {
    constructor(message: string, cause?: Error);
}
/**
 * Error class for invalid argument errors
 */
export declare class BlobInvalidArgumentError extends BlobError {
    constructor(message: string, cause?: Error);
}
/**
 * Error class for internal errors
 */
export declare class BlobInternalError extends BlobError {
    constructor(message: string, cause?: Error);
}
/**
 * Error class for not implemented errors
 */
export declare class BlobNotImplementedError extends BlobError {
    constructor(message: string, cause?: Error);
}
/**
 * Error class for network errors
 */
export declare class BlobNetworkError extends BlobError {
    constructor(message: string, cause?: Error);
}
/**
 * Options for blob operations
 */
export interface BlobOptions {
    /**
     * ETag for conditional operations (optimistic concurrency control)
     */
    etag?: string;
    /**
     * Content type of the blob
     */
    contentType?: string;
    /**
     * Custom metadata associated with the blob
     */
    metadata?: Record<string, string>;
}
/**
 * Result of deleting a blob
 */
export interface DeleteBlobResult {
    deleted: boolean;
}
/**
 * A response from a blob operation that includes metadata
 */
export interface BlobResponse<T> {
    /**
     * The data content of the blob
     */
    content: T;
    /**
     * ETag of the blob
     */
    etag?: string;
    /**
     * Last modified timestamp
     */
    lastModified?: Date;
    /**
     * Size of the blob in bytes
     */
    size?: number;
    /**
     * Content type of the blob
     */
    contentType?: string;
    /**
     * Custom metadata associated with the blob
     */
    metadata?: Record<string, string>;
}
/**
 * Interface for a typed blob object
 */
export interface Blob<T> {
    /**
     * Get the blob as JSON data.
     * @returns The blob data as JSON, or null if not found.
     */
    getJSON(): Promise<T | null>;
    /**
     * Get the blob as a string.
     * @returns The blob data as a string, or null if not found.
     */
    getString(): Promise<string | null>;
    /**
     * Get the raw blob response with metadata.
     * @returns The blob response with metadata, or null if not found.
     */
    getRaw(): Promise<BlobResponse<Buffer> | null>;
    /**
     * Get a readable stream of the blob's content.
     * @returns A readable stream of the blob's content.
     */
    getStream(): Promise<Readable>;
    /**
     * Put JSON data into the blob.
     * @param value The JSON data to store.
     * @param options Optional metadata and etag for conditional updates.
     * @returns The etag of the stored blob.
     */
    putJSON(value: T, options?: BlobOptions): Promise<{
        etag: string;
    }>;
    /**
     * Put string data into the blob.
     * @param value The string data to store.
     * @param options Optional metadata and etag for conditional updates.
     * @returns The etag of the stored blob.
     */
    putString(value: string, options?: BlobOptions): Promise<{
        etag: string;
    }>;
    /**
     * Put raw data into the blob with metadata.
     * @param value The data to store.
     * @param options Optional metadata and etag for conditional updates.
     * @returns The etag of the stored blob.
     */
    putRaw(value: Buffer, options?: BlobOptions): Promise<{
        etag: string;
    }>;
    /**
     * Put a readable stream into the blob.
     * @param stream The readable stream to store.
     * @param options Optional metadata and etag for conditional updates.
     * @returns The etag of the stored blob.
     */
    putStream(stream: Readable, options?: BlobOptions): Promise<{
        etag: string;
    }>;
    /**
     * Delete the blob.
     */
    delete(): Promise<void>;
    /**
     * Check if the blob exists.
     * @returns True if the blob exists, false otherwise.
     */
    exists(): Promise<boolean>;
    /**
     * Get metadata associated with the blob
     * @returns The metadata or null if the blob doesn't exist
     */
    getMetadata(): Promise<Record<string, string> | null>;
    /**
     * Update metadata associated with the blob
     * @param metadata The new metadata to store
     * @param options Optional etag for conditional update
     */
    updateMetadata(metadata: Record<string, string>, options?: BlobOptions): Promise<void>;
}
/**
 * Options for listing blobs
 */
export interface ListBlobsOptions {
    /**
     * Prefix to filter blobs by
     */
    prefix?: string;
    /**
     * Maximum number of results to return per page
     */
    limit?: number;
    /**
     * Cursor for pagination. This should be the cursor from the previous page's response.
     * If not provided, returns the first page.
     */
    cursor?: string;
}
/**
 * Response from listing blobs with pagination
 */
export interface ListBlobsResponse {
    /**
     * List of blobs
     */
    blobs: {
        key: string;
        lastModified: string;
        size: number;
    }[];
    /**
     * Cursor to get the next page of results.
     * If null, there are no more results.
     */
    nextCursor?: string;
}
/**
 * Interface for blob storage
 */
export interface BlobStorage {
    /**
     * Get a blob object for a specific key
     */
    getBlob<T>(key: string): Blob<T>;
    /**
     * List blobs with cursor-based pagination
     * @param options Options for listing blobs including prefix, pagination, and filtering
     */
    listBlobs(options?: ListBlobsOptions): Promise<ListBlobsResponse>;
    /**
     * Check if a blob exists
     */
    blobExists(key: string): Promise<boolean>;
    /**
     * Delete a blob
     */
    deleteBlob(key: string): Promise<DeleteBlobResult>;
}
/**
 * Provider configuration kinds
 */
export type BlobStorageKind = "filesystem" | "cloud";
/**
 * Base storage configuration
 */
export interface BaseBlobStorageOptions {
    /**
     * Storage kind - if not provided, will be determined from environment
     */
    kind?: BlobStorageKind;
    /**
     * Default prefix for all blob keys
     */
    defaultPrefix?: string;
    /**
     * Optional project name. By default, the GENSX_PROJECT environment variable will be used then the projectName from the gensx.yaml file.
     */
    project?: string;
    /**
     * Optional environment name. By default, the GENSX_ENV environment variable will be used then the currently selected environment in the CLI (e.g. `gensx env select`).
     */
    environment?: string;
}
/**
 * Filesystem storage configuration
 */
export interface FileSystemBlobStorageOptions extends BaseBlobStorageOptions {
    kind?: "filesystem";
    /**
     * Root directory for storing blobs
     */
    rootDir?: string;
}
/**
 * Cloud storage configuration
 */
export interface CloudBlobStorageOptions extends BaseBlobStorageOptions {
    kind?: "cloud";
}
/**
 * Union type for blob storage configuration
 */
export type BlobStorageOptions = FileSystemBlobStorageOptions | CloudBlobStorageOptions;
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