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JavaScript API 레퍼런스

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EmDash는 콘텐츠 조회, 미디어 관리, 데이터베이스 작업을 위한 함수를 export합니다.

Content Queries

EmDash의 쿼리 함수는 Astro의 live content collections 패턴을 따르며, 오류 처리를 위해 { entries, error } 또는 { entry, error }를 반환합니다.

getEmDashCollection()

컬렉션의 모든 항목을 가져옵니다.

import { getEmDashCollection } from "emdash";

const { entries: posts, error } = await getEmDashCollection("posts");

if (error) {
	console.error("Failed to load posts:", error);
}

Parameters

ParameterTypeDescription
collectionstring컬렉션 slug
optionsCollectionFilter선택적 필터 옵션

Options

interface CollectionFilter {
	status?: "draft" | "published" | "archived";
	limit?: number;
	where?: Record<string, string | string[]>; // Filter by field or taxonomy
}

Returns

interface CollectionResult<T> {
	entries: ContentEntry<T>[]; // Empty array if error or none found
	error?: Error; // Set if query failed
}

Examples

// Get all published posts
const { entries: posts } = await getEmDashCollection("posts", {
	status: "published",
});

// Get latest 5 posts
const { entries: latest } = await getEmDashCollection("posts", {
	limit: 5,
	status: "published",
});

// Filter by taxonomy
const { entries: newsPosts } = await getEmDashCollection("posts", {
	status: "published",
	where: { category: "news" },
});

// Handle errors
const { entries, error } = await getEmDashCollection("posts");
if (error) {
	return new Response("Server error", { status: 500 });
}

getEmDashEntry()

slug 또는 ID로 단일 항목을 가져옵니다.

import { getEmDashEntry } from "emdash";

const { entry: post, error } = await getEmDashEntry("posts", "my-post-slug");

if (!post) {
	return Astro.redirect("/404");
}

Parameters

ParameterTypeDescription
collectionstring컬렉션 slug
slugOrIdstring항목 slug 또는 ID

미리보기 모드는 자동으로 처리됩니다. 미들웨어가 _preview 토큰을 감지하고 AsyncLocalStorage를 통해 초안 콘텐츠를 제공합니다. options 매개변수는 필요 없습니다.

Returns

interface EntryResult<T> {
	entry: ContentEntry<T> | null; // null if not found
	error?: Error; // Set only for actual errors, not "not found"
	isPreview: boolean; // true if draft content is being served
}

Examples

// Get by slug
const { entry: post } = await getEmDashEntry("posts", "hello-world");

// Get by ID
const { entry: post } = await getEmDashEntry("posts", "01HXK5MZSN0FVXT2Q3KPRT9M7D");

// Preview is automatic — isPreview is true when a valid _preview token is present
const { entry, isPreview, error } = await getEmDashEntry("posts", slug);

// Handle errors vs not-found
if (error) {
	return new Response("Server error", { status: 500 });
}
if (!entry) {
	return Astro.redirect("/404");
}

Content Types

ContentEntry

쿼리 함수가 반환하는 항목:

interface ContentEntry<T = Record<string, unknown>> {
	id: string;
	data: T;
	edit: EditProxy; // Visual editing annotations
}

edit 프록시는 시각적 편집 주석을 제공합니다. 요소에 펼쳐 인라인 편집을 활성화합니다: {...entry.edit.title}. 프로덕션에서는 출력이 없습니다.

data 객체에는 모든 콘텐츠 필드와 시스템 필드가 포함됩니다:

  • id — 고유 식별자
  • slug — URL 친화적 식별자
  • status — "draft" | "published" | "archived"
  • createdAt — ISO 타임스탬프
  • updatedAt — ISO 타임스탬프
  • publishedAt — ISO 타임스탬프 또는 null
  • 컬렉션 스키마에 정의된 모든 사용자 정의 필드

Database Functions

createDatabase()

데이터베이스 연결을 만듭니다.

import { createDatabase } from "emdash";

const db = createDatabase({ url: "file:./data.db" });

runMigrations()

대기 중인 데이터베이스 마이그레이션을 실행합니다.

import { createDatabase, runMigrations } from "emdash";

const db = createDatabase({ url: "file:./data.db" });
const { applied } = await runMigrations(db);
console.log(`Applied ${applied.length} migrations`);

getMigrationStatus()

마이그레이션 상태를 확인합니다.

import { createDatabase, getMigrationStatus } from "emdash";

const db = createDatabase({ url: "file:./data.db" });
const status = await getMigrationStatus(db);
// { applied: ["0001_core", ...], pending: [] }

Repositories

리포지토리를 통한 저수준 데이터 액세스.

ContentRepository

import { ContentRepository, createDatabase } from "emdash";

const db = createDatabase({ url: "file:./data.db" });
const repo = new ContentRepository(db);

// Find many
const { items, nextCursor } = await repo.findMany("posts", {
	limit: 10,
	where: { status: "published" },
});

// Find by ID
const post = await repo.findById("posts", "01HXK5MZSN...");

// Create
const newPost = await repo.create({
	type: "posts",
	slug: "new-post",
	data: { title: "New Post", content: [] },
	status: "draft",
});

// Update
const updated = await repo.update("posts", "01HXK5MZSN...", {
	data: { title: "Updated Title" },
});

// Delete
await repo.delete("posts", "01HXK5MZSN...");

MediaRepository

import { MediaRepository, createDatabase } from "emdash";

const db = createDatabase({ url: "file:./data.db" });
const repo = new MediaRepository(db);

// List media
const { items } = await repo.findMany({ limit: 20 });

// Get by ID
const media = await repo.findById("01HXK5MZSN...");

// Create (after upload)
const newMedia = await repo.create({
	filename: "photo.jpg",
	mimeType: "image/jpeg",
	size: 12345,
	storageKey: "uploads/photo.jpg",
});

Schema Registry

프로그래밍 방식 스키마 관리.

import { SchemaRegistry, createDatabase } from "emdash";

const db = createDatabase({ url: "file:./data.db" });
const registry = new SchemaRegistry(db);

// List collections
const collections = await registry.listCollections();

// Get collection with fields
const postsSchema = await registry.getCollectionWithFields("posts");

// Create collection
await registry.createCollection({
	slug: "products",
	label: "Products",
	labelSingular: "Product",
	supports: ["drafts", "revisions"],
});

// Add field
await registry.createField("products", {
	slug: "price",
	label: "Price",
	type: "number",
	required: true,
});

Preview System

generatePreviewToken()

초안 콘텐츠용 미리보기 토큰을 생성합니다.

import { generatePreviewToken } from "emdash";

const token = await generatePreviewToken({
	contentId: "posts:01HXK5MZSN...",
	secret: process.env.EMDASH_ADMIN_SECRET,
	expiresIn: 3600, // 1 hour
});

verifyPreviewToken()

미리보기 토큰을 검증합니다.

import { verifyPreviewToken } from "emdash";

const result = await verifyPreviewToken({
	token,
	secret: process.env.EMDASH_ADMIN_SECRET,
});

if (result.valid) {
	const { cid, exp, iat } = result.payload;
	// cid is "collection:id" format, e.g. "posts:my-draft-post"
}

isPreviewRequest()

요청에 미리보기 토큰이 포함되는지 확인합니다.

import { isPreviewRequest, getPreviewToken } from "emdash";

if (isPreviewRequest(Astro.request)) {
	const token = getPreviewToken(Astro.request);
	// Verify and show preview content
}

Content Converters

Portable Text와 ProseMirror 간 변환.

import { prosemirrorToPortableText, portableTextToProsemirror } from "emdash";

// From ProseMirror (editor) to Portable Text (storage)
const portableText = prosemirrorToPortableText(prosemirrorDoc);

// From Portable Text to ProseMirror
const prosemirrorDoc = portableTextToProsemirror(portableText);

Site Settings

import { getSiteSettings, getSiteSetting } from "emdash";

// Get all settings
const settings = await getSiteSettings();

// Get single setting
const title = await getSiteSetting("siteTitle");

설정은 런타임 API에서 읽기 전용입니다. 업데이트는 admin API를 사용하세요.

import { getMenu, getMenus } from "emdash";

// Get all menus
const menus = await getMenus();

// Get specific menu with items
const primaryMenu = await getMenu("primary");

if (primaryMenu) {
	primaryMenu.items.forEach(item => {
		console.log(item.label, item.url);
		// Nested items for dropdowns
		item.children.forEach(child => console.log("  -", child.label));
	});
}

Taxonomies

import { getTaxonomyTerms, getTerm, getEntryTerms, getEntriesByTerm } from "emdash";

// Get all terms for a taxonomy (tree structure for hierarchical)
const categories = await getTaxonomyTerms("category");

// Get single term
const news = await getTerm("category", "news");

// Get terms assigned to a content entry
const postCategories = await getEntryTerms("posts", "post-123", "category");

// Get entries with a specific term
const newsPosts = await getEntriesByTerm("posts", "category", "news");

Widget Areas

import { getWidgetArea, getWidgetAreas } from "emdash";

// Get all widget areas
const areas = await getWidgetAreas();

// Get specific widget area with widgets
const sidebar = await getWidgetArea("sidebar");

if (sidebar) {
	sidebar.widgets.forEach(widget => {
		console.log(widget.type, widget.title);
	});
}

Sections

import { getSection, getSections, getSectionCategories } from "emdash";

// Get all sections
const sections = await getSections();

// Filter sections
const heroes = await getSections({ category: "hero" });
const themeSections = await getSections({ source: "theme" });
const results = await getSections({ search: "newsletter" });

// Get single section
const cta = await getSection("newsletter-cta");

// Get categories
const categories = await getSectionCategories();
import { search, searchCollection } from "emdash";

// Global search across collections
const results = await search("hello world", {
	collections: ["posts", "pages"],
	status: "published",
	limit: 20,
});

// Results include snippets with highlights
results.forEach(result => {
	console.log(result.title);
	console.log(result.snippet); // Contains <mark> tags
	console.log(result.score);
});

// Collection-specific search
const posts = await searchCollection("posts", "typescript", {
	limit: 10,
});

Error Handling

EmDash는 특정 실패를 위한 오류 클래스를 export합니다:

import {
  EmDashDatabaseError,
  EmDashValidationError,
  EmDashStorageError,
  SchemaError,
} from "emdash";

try {
  await repo.create({ ... });
} catch (error) {
  if (error instanceof EmDashValidationError) {
    console.error("Validation failed:", error.message);
  }
  if (error instanceof SchemaError) {
    console.error("Schema error:", error.code, error.details);
  }
}