@molecule/api-resource-bookmark

Bookmark/favorite resource for molecule.dev.

Allows users to bookmark any resource, organize into folders, and check bookmark status.

Auto-generated, AI-first package reference for the molecule.dev ecosystem. It is written to be read by coding agents as much as by people, and is generated from this package's source — edit src/index.ts JSDoc, not this file.

Quick Start

import { routes, requestHandlerMap } from '@molecule/api-resource-bookmark'

// Wire routes into your Express app via mlcl inject
// POST   /bookmarks
// GET    /bookmarks
// GET    /bookmarks/folders
// GET    /bookmarks/check/:resourceType/:resourceId
// DELETE /bookmarks/:resourceType/:resourceId

Type

resource

Installation

npm install @molecule/api-resource-bookmark @molecule/api-database @molecule/api-i18n @molecule/api-logger @molecule/api-resource zod

API

Interfaces

Bookmark

A bookmark linking a user to a resource, with optional folder grouping.

interface Bookmark {
  /** Unique bookmark identifier. */
  id: string
  /** The ID of the user who created the bookmark. */
  userId: string
  /** The type of resource bookmarked (e.g. 'post', 'project'). */
  resourceType: string
  /** The ID of the bookmarked resource. */
  resourceId: string
  /** Optional folder name for organizing bookmarks. */
  folder: string | null
  /** When the bookmark was created (ISO 8601). */
  createdAt: string
  /** When the bookmark was last updated (ISO 8601). */
  updatedAt: string
}

BookmarkQuery

Query options for listing bookmarks.

interface BookmarkQuery {
  /** Filter by resource type. */
  resourceType?: string
  /** Filter by folder name. */
  folder?: string
  /** Maximum number of results to return. */
  limit?: number
  /** Number of results to skip. */
  offset?: number
}

PaginatedResult

A paginated result set.

interface PaginatedResult<T> {
  /** The result items for the current page. */
  data: T[]
  /** Total number of matching items across all pages. */
  total: number
  /** Maximum number of results per page. */
  limit: number
  /** Number of results skipped. */
  offset: number
}

Functions

create(req, res)

Adds a bookmark for the current user. Idempotent.

function create(req: MoleculeRequest, res: MoleculeResponse): Promise<void>

• req — The request with bookmark body (resourceType, resourceId, folder?).
• res — The response object.

del(req, res)

Removes a bookmark by resource type and ID.

function del(req: MoleculeRequest, res: MoleculeResponse): Promise<void>

• req — The request with resourceType and resourceId params.
• res — The response object.

list(req, res)

Lists the current user's bookmarks with optional filtering and pagination.

function list(req: MoleculeRequest, res: MoleculeResponse): Promise<void>

• req — The request with optional query params (resourceType, folder, limit, offset).
• res — The response object.

check(req, res)

Checks whether the current user has bookmarked a resource.

function check(req: MoleculeRequest, res: MoleculeResponse): Promise<void>

• req — The request with resourceType and resourceId params.
• res — The response object.

folders(_req, res)

Lists all unique folder names for the current user's bookmarks.

function folders(_req: MoleculeRequest, res: MoleculeResponse): Promise<void>

• _req — The request (unused).
• res — The response object.

addBookmark(userId, resourceType, resourceId, folder)

Adds a bookmark. Idempotent — returns existing bookmark if already bookmarked.

function addBookmark(
  userId: string,
  resourceType: string,
  resourceId: string,
  folder?: string,
): Promise<Bookmark>

• userId — The user ID.
• resourceType — The type of resource to bookmark.
• resourceId — The ID of the resource to bookmark.
• folder — Optional folder name.

Returns: The created or existing bookmark.

removeBookmark(userId, resourceType, resourceId)

Removes a bookmark.

function removeBookmark(userId: string, resourceType: string, resourceId: string): Promise<void>

• userId — The user ID.
• resourceType — The type of resource.
• resourceId — The ID of the resource.

getBookmarks(userId, options)

Gets all bookmarks for a user with optional filtering and pagination.

function getBookmarks(userId: string, options?: BookmarkQuery): Promise<PaginatedResult<Bookmark>>

• userId — The user ID.
• options — Query options.

Returns: Paginated bookmarks.

isBookmarked(userId, resourceType, resourceId)

Checks if a resource is bookmarked by a user.

function isBookmarked(userId: string, resourceType: string, resourceId: string): Promise<boolean>

• userId — The user ID.
• resourceType — The type of resource.
• resourceId — The ID of the resource.

Returns: true if bookmarked.

getFolders(userId)

Gets all unique folder names for a user's bookmarks.

function getFolders(userId: string): Promise<string[]>

• userId — The user ID.

Returns: Array of folder names.

Constants

requestHandlerMap

Handler map for bookmark routes.

const requestHandlerMap: {
  readonly create: typeof create
  readonly list: typeof list
  readonly check: typeof check
  readonly folders: typeof folders
  readonly del: typeof del
}

routes

Routes for bookmark add/remove/list/check and folder listing.

const routes: readonly [
  {
    readonly method: 'post'
    readonly path: '/bookmarks'
    readonly handler: 'create'
    readonly middlewares: readonly ['authenticate']
  },
  {
    readonly method: 'get'
    readonly path: '/bookmarks'
    readonly handler: 'list'
    readonly middlewares: readonly ['authenticate']
  },
  {
    readonly method: 'get'
    readonly path: '/bookmarks/folders'
    readonly handler: 'folders'
    readonly middlewares: readonly ['authenticate']
  },
  {
    readonly method: 'get'
    readonly path: '/bookmarks/check/:resourceType/:resourceId'
    readonly handler: 'check'
    readonly middlewares: readonly ['authenticate']
  },
  {
    readonly method: 'delete'
    readonly path: '/bookmarks/:resourceType/:resourceId'
    readonly handler: 'del'
    readonly middlewares: readonly ['authenticate']
  },
]

createBookmarkSchema

Schema for validating bookmark creation input.

const createBookmarkSchema: z.ZodObject<
  { resourceType: z.ZodString; resourceId: z.ZodString; folder: z.ZodOptional<z.ZodString> },
  z.core.$strip
>

Injection Notes

Requirements

Peer dependencies:

• @molecule/api-database ^1.0.1
• @molecule/api-i18n ^1.0.1
• @molecule/api-logger ^1.0.1
• @molecule/api-resource ^1.0.1
• zod ^4.0.0

Runtime Dependencies

• @molecule/api-database

• @molecule/api-i18n

• @molecule/api-logger

• @molecule/api-resource

• zod

• List endpoints return a PAGINATED envelope { data, total, limit, offset }, not a bare array — read the rows off result.data (server). On the client, unwrapList(res) from @molecule/app-http normalizes this envelope (pass it the whole HttpResponse), so the rows come back; reading the response as a bare array — or res.data alone (which is the envelope) — yields an EMPTY list.

• Migration required. src/__setup__/bookmarks.sql ships with this package and must exist in the target database before use (scaffolded apps apply it automatically). Note the UNIQUE ("userId","resourceType","resourceId") constraint — one bookmark per user per resource.

• addBookmark() is idempotent and does NOT move folders. Re-adding an existing bookmark returns the existing row unchanged — to move a bookmark to another folder, remove and re-add it (or add your own update path).

• Owner-scoped via the session. All routes require authenticate and every query filters by the session userId — never accept a target userId from the client (IDOR).

• Bookmarked resources are polymorphic and unverified (no FK): use the same canonical resourceType slugs as your other polymorphic resources (comments, activity feed) so check/remove keys line up.

• Folders are free-form strings on the bookmark row (GET /bookmarks/folders returns the distinct set) — there is no folder entity to create first.

E2E Tests

Integration checklist — drive the real UI (live preview, no mocks), adapt each item to this app's actual screens/flows, and check every box off one by one. A box you can't check is an integration bug to fix — not a skip:

• Bookmarking an item (POST /bookmarks with its resourceType + resourceId) saves it, it then appears in the user's bookmarks list (GET /bookmarks), and its bookmark/star control reflects the saved state (GET /bookmarks/check/:resourceType/:resourceId returns { bookmarked: true }).
• It is idempotent and toggles cleanly: bookmarking the SAME resourceType+resourceId twice does NOT create a duplicate (the UNIQUE (userId, resourceType, resourceId) constraint holds — the second add returns the existing row), and un-bookmarking (DELETE /bookmarks/:resourceType/:resourceId) removes it from the list and flips the control back (check returns { bookmarked: false }).
• Folders work: a bookmark filed into a folder (the free-form folder string, set at create time — re-adding does NOT move it between folders) shows under that folder, GET /bookmarks/folders returns the distinct folder set, and GET /bookmarks?folder=X (and ?resourceType=X) filters the list to only the matching bookmarks.
• Display data resolves from the referenced resource: the bookmark row stores only resourceType+resourceId (no title/url/thumbnail, no FK), so each list item renders its real title/thumbnail by looking the target up, and a bookmark whose target was since deleted is handled gracefully (hidden or tombstoned, never a crash or a blank row).
• Authorization — bookmarks are strictly per-user: the owner is the session userId (res.locals.session), NEVER a userId taken from the request body; every list/check/remove is scoped to that session user, so one user can neither see nor delete another user's saved items (there is no bookmark-id route to guess — keys are resourceType+resourceId under the caller's own userId); and a user can only bookmark targets they are allowed to see (the target is polymorphic and unverified, so gate the create by target visibility).