orama

// src/search/index.ts — Create and populate a search index
import { create, insert, search, count } from "@orama/orama";

// Define the schema — Orama infers types and builds indexes automatically
const db = await create({
  schema: {
    title: "string",
    content: "string",
    category: "enum",              // Filterable enum values
    tags: "string[]",              // Array of strings (searchable)
    publishedAt: "number",         // Unix timestamp for range filters
    author: "string",
    views: "number",
  },
});

// Insert documents
await insert(db, {
  title: "Getting Started with Orama Search",
  content: "Orama is a blazing-fast full-text search engine that works in the browser, on the server, and at the edge. No external dependencies required.",
  category: "tutorial",
  tags: ["search", "javascript", "performance"],
  publishedAt: Date.now(),
  author: "Alex Chen",
  views: 1250,
});

await insert(db, {
  title: "Building Real-Time Search with React",
  content: "Learn how to implement instant search in your React application using Orama. Sub-millisecond results with typo tolerance.",
  category: "tutorial",
  tags: ["react", "search", "ui"],
  publishedAt: Date.now(),
  author: "Marta Lopez",
  views: 890,
});

// Search with typo tolerance (default: enabled)
const results = await search(db, {
  term: "serch engne",            // Typos handled automatically
  properties: ["title", "content"], // Which fields to search
  limit: 10,
  offset: 0,
});

console.log(`Found ${results.count} results in ${results.elapsed.formatted}`);
// "Found 2 results in 0.12ms"

for (const hit of results.hits) {
  console.log(`${hit.score.toFixed(2)} | ${hit.document.title}`);
}

// src/search/filtered.ts — Search with filters, facets, and sorting
import { search } from "@orama/orama";

// Search with filters
const filtered = await search(db, {
  term: "search",
  where: {
    category: { eq: "tutorial" },          // Exact match on enum
    publishedAt: { gt: Date.now() - 30 * 24 * 60 * 60 * 1000 }, // Last 30 days
    views: { gte: 100, lte: 10000 },      // Range filter
    tags: { containsAll: ["react"] },      // Array contains all
  },
  sortBy: {
    property: "views",
    order: "DESC",                         // Sort by most popular
  },
  limit: 20,
});

// Faceted search — get aggregated counts for filters
const faceted = await search(db, {
  term: "javascript",
  facets: {
    category: {
      limit: 10,                           // Top 10 categories
    },
    tags: {
      limit: 20,
    },
    views: {
      ranges: [
        { from: 0, to: 100 },             // 0-100 views
        { from: 100, to: 1000 },           // 100-1000 views
        { from: 1000, to: Infinity },      // 1000+ views
      ],
    },
  },
});

// Facet results for building filter UIs
console.log(faceted.facets);
// {
//   category: { count: 2, values: { tutorial: 2, guide: 1 } },
//   tags: { count: 5, values: { javascript: 3, react: 2, search: 2 } },
//   views: { count: 3, values: { "0-100": 1, "100-1000": 2, "1000+": 1 } },
// }

// src/search/hybrid.ts — Hybrid search combining BM25 and vector similarity
import { create, insert, search } from "@orama/orama";
import { pluginEmbeddings } from "@orama/plugin-embeddings";
import { OramaCloud } from "@orama/plugin-embeddings/dist/models";

// Create index with vector support
const db = await create({
  schema: {
    title: "string",
    content: "string",
    category: "enum",
    embedding: "vector[384]",     // 384-dimensional vector field
  },
  plugins: [
    pluginEmbeddings({
      embeddings: {
        model: OramaCloud,        // Built-in embedding model (no API key needed)
        // Or use OpenAI: { model: "openai", apiKey: process.env.OPENAI_API_KEY }
        documentProperties: ["title", "content"],  // Which fields to embed
        defaultProperty: "embedding",               // Store embeddings here
      },
    }),
  ],
});

// Insert — embeddings are generated automatically from title + content
await insert(db, {
  title: "Kubernetes Pod Scheduling",
  content: "Understanding how the Kubernetes scheduler assigns pods to nodes based on resource requests, affinity rules, and taints.",
  category: "devops",
});

// Hybrid search — combines keyword relevance (BM25) with semantic similarity
const results = await search(db, {
  term: "how to deploy containers",     // Keyword search
  mode: "hybrid",                        // "fulltext" | "vector" | "hybrid"
  similarity: 0.8,                       // Minimum vector similarity threshold
  limit: 10,
});

// Pure vector search (semantic only, no keyword matching)
const semantic = await search(db, {
  term: "container orchestration best practices",
  mode: "vector",
  similarity: 0.75,
});

// src/components/SearchBox.tsx — Instant search with React
import { useSearch } from "@orama/react-components";
import { useState, useMemo } from "react";

export function SearchBox({ db }: { db: any }) {
  const [query, setQuery] = useState("");

  // useSearch automatically debounces and handles loading state
  const { results, loading } = useSearch(db, {
    term: query,
    limit: 10,
    properties: ["title", "content"],
    facets: { category: { limit: 5 } },
  });

  return (
    <div>
      <input
        type="search"
        value={query}
        onChange={(e) => setQuery(e.target.value)}
        placeholder="Search articles..."
      />

      {loading && <div className="spinner" />}

      {results?.hits.map((hit) => (
        <article key={hit.id}>
          <h3>{hit.document.title}</h3>
          <p>{hit.document.content.slice(0, 150)}...</p>
          <span>Score: {hit.score.toFixed(2)}</span>
        </article>
      ))}

      {/* Facet filters */}
      {results?.facets?.category && (
        <div className="filters">
          {Object.entries(results.facets.category.values).map(([cat, count]) => (
            <button key={cat}>{cat} ({count})</button>
          ))}
        </div>
      )}
    </div>
  );
}

// src/search/persistence.ts — Persist search index to disk or storage
import { create, save, load } from "@orama/orama";
import { persistToFile, restoreFromFile } from "@orama/plugin-data-persistence";
import fs from "fs";

// Save index to a file (server-side)
const serialized = await save(db);
fs.writeFileSync("search-index.json", JSON.stringify(serialized));

// Restore index from file
const data = JSON.parse(fs.readFileSync("search-index.json", "utf-8"));
const restored = await load(data);

// Binary format — smaller and faster to load
const binary = await persistToFile(db, "binary", "search-index.msp");
const fromBinary = await restoreFromFile("binary", "search-index.msp");

# Core library
npm install @orama/orama

# Plugins (optional)
npm install @orama/plugin-embeddings       # Vector/hybrid search
npm install @orama/plugin-data-persistence # Save/load indexes
npm install @orama/react-components        # React hooks

Add Orama to my Next.js app for the AI chat feature. I want streaming responses.

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