@keyv/bigmap - npm Package Compare versions

Comparing version 1.0.3 to 1.1.0

dist/index.cjs

@@ -24,2 +24,4 @@ "use strict";
   BigMap: () => BigMap,
+  Keyv: () => import_keyv2.Keyv,
+  createKeyv: () => createKeyv,
   defaultHashFunction: () => defaultHashFunction,
@@ -30,2 +32,4 @@ djb2Hash: () => djb2Hash
 var import_hookified = require("hookified");
+var import_keyv = require("keyv");
+var import_keyv2 = require("keyv");
 function defaultHashFunction(key, storeSize) {
@@ -260,7 +264,14 @@ return djb2Hash(key, 0, storeSize - 1);
 };
+function createKeyv(options) {
+  const adapter = new BigMap(options);
+  const keyv = new import_keyv.Keyv({ store: adapter });
+  return keyv;
+}
 // Annotate the CommonJS export names for ESM import in node:
 0 && (module.exports = {
   BigMap,
+  Keyv,
+  createKeyv,
   defaultHashFunction,
   djb2Hash
 });

dist/index.d.cts

 import { HookifiedOptions, Hookified } from 'hookified';
+import { Keyv } from 'keyv';
+export { Keyv } from 'keyv';
 
@@ -148,3 +150,9 @@ type MapInterfacee<K, V> = {
 }
+/**
+ * Will create a Keyv instance with the BigMap adapter. This will also set the namespace and useKeyPrefix to false.
+ * @param {BigMapOptions} options - Options for the BigMap adapter such as storeSize and storeHashFunction.
+ * @returns {Keyv} - Keyv instance with the BigMap adapter
+ */
+declare function createKeyv<K = string, V = unknown>(options?: BigMapOptions): Keyv;
 
-export { BigMap, type BigMapOptions, type MapInterfacee, type StoreHashFunction, defaultHashFunction, djb2Hash };
+export { BigMap, type BigMapOptions, type MapInterfacee, type StoreHashFunction, createKeyv, defaultHashFunction, djb2Hash };

dist/index.d.ts

 import { HookifiedOptions, Hookified } from 'hookified';
+import { Keyv } from 'keyv';
+export { Keyv } from 'keyv';
 
@@ -148,3 +150,9 @@ type MapInterfacee<K, V> = {
 }
+/**
+ * Will create a Keyv instance with the BigMap adapter. This will also set the namespace and useKeyPrefix to false.
+ * @param {BigMapOptions} options - Options for the BigMap adapter such as storeSize and storeHashFunction.
+ * @returns {Keyv} - Keyv instance with the BigMap adapter
+ */
+declare function createKeyv<K = string, V = unknown>(options?: BigMapOptions): Keyv;
 
-export { BigMap, type BigMapOptions, type MapInterfacee, type StoreHashFunction, defaultHashFunction, djb2Hash };
+export { BigMap, type BigMapOptions, type MapInterfacee, type StoreHashFunction, createKeyv, defaultHashFunction, djb2Hash };

dist/index.js

 // src/index.ts
 import { Hookified } from "hookified";
+import { Keyv } from "keyv";
+import { Keyv as Keyv2 } from "keyv";
 function defaultHashFunction(key, storeSize) {
@@ -232,6 +234,13 @@ return djb2Hash(key, 0, storeSize - 1);
 };
+function createKeyv(options) {
+  const adapter = new BigMap(options);
+  const keyv = new Keyv({ store: adapter });
+  return keyv;
+}
 export {
   BigMap,
+  Keyv2 as Keyv,
+  createKeyv,
   defaultHashFunction,
   djb2Hash
 };

package.json

 {
   "name": "@keyv/bigmap",
-  "version": "1.0.3",
+  "version": "1.1.0",
   "description": "Bigmap for Keyv",
@@ -35,7 +35,7 @@ "type": "module",
   "dependencies": {
-    "hookified": "^1.12.1"
+    "hookified": "^1.12.2"
   },
   "devDependencies": {
-    "@biomejs/biome": "^2.2.5",
-    "@faker-js/faker": "^10.0.0",
+    "@biomejs/biome": "^2.2.6",
+    "@faker-js/faker": "^10.1.0",
     "@vitest/coverage-v8": "^3.2.4",
@@ -46,2 +46,5 @@ "rimraf": "^6.0.1",
   },
+  "peerDependencies": {
+    "keyv": "^5.5.3"
+  },
   "tsd": {
@@ -48,0 +51,0 @@ "directory": "test"

README.md

@@ -7,4 +7,4 @@ # @keyv/redis [<img width="100" align="right" src="https://jaredwray.com/images/keyv-symbol.svg" alt="keyv">](https://github.com/jaredwra/keyv)
 [![codecov](https://codecov.io/gh/jaredwray/keyv/branch/main/graph/badge.svg?token=bRzR3RyOXZ)](https://codecov.io/gh/jaredwray/keyv)
-[![npm](https://img.shields.io/npm/v/@keyv/redis.svg)](https://www.npmjs.com/package/@keyv/redis)
-[![npm](https://img.shields.io/npm/dm/@keyv/redis)](https://npmjs.com/package/@keyv/redis)
+[![npm](https://img.shields.io/npm/v/@keyv/bigmap.svg)](https://www.npmjs.com/package/@keyv/bigmap)
+[![npm](https://img.shields.io/npm/dm/@keyv/bigmap)](https://npmjs.com/package/@keyv/bigmap)
 
@@ -18,4 +18,2 @@ # Features
 * Built in Typescript and Generics for type safety.
-* Used as default in-memory store for `Keyv`.
-* Used as in-memory store for `@keyv/fs`.
 * Used in `@cacheable/memory` for scalable in-memory caching.
@@ -26,2 +24,43 @@ * Maintained regularly with a focus on performance and reliability.
 
+- [Features](#features)
+- [Installation](#installation)
+- [Overview](#overview)
+- [Basic Usage](#basic-usage)
+- [Custom Store Size](#custom-store-size)
+- [Custom Hash Function](#custom-hash-function)
+- [Iteration](#iteration)
+  - [For...of Loop](#forof-loop)
+  - [forEach](#foreach)
+  - [Keys, Values, and Entries](#keys-values-and-entries)
+- [Advanced Features](#advanced-features)
+  - [Type Safety with Generics](#type-safety-with-generics)
+  - [Large-Scale Data](#large-scale-data)
+- [Using with Keyv](#using-with-keyv)
+  - [`createKeyv(options?)`](#createkeyvoptions)
+  - [With Custom Options](#with-custom-options)
+  - [Type Safety](#type-safety)
+  - [Integration with Keyv Ecosystem](#integration-with-keyv-ecosystem)
+- [API](#api)
+- [Constructor](#constructor)
+- [Properties](#properties)
+- [Methods](#methods)
+  - [`set(key, value)`](#setkey-value)
+  - [`get(key)`](#getkey)
+  - [`has(key)`](#haskey)
+  - [`delete(key)`](#deletekey)
+  - [`clear()`](#clear)
+  - [`forEach(callbackfn, thisArg?)`](#foreachcallbackfn-thisarg)
+  - [`keys()`](#keys)
+  - [`values()`](#values)
+  - [`entries()`](#entries)
+  - [`[Symbol.iterator]()`](#symboliterator)
+  - [`getStore(key)`](#getstorekey)
+  - [`getStoreMap(index)`](#getstoremapindex)
+  - [`initStore()`](#initstore)
+- [Types](#types)
+  - [`StoreHashFunction`](#storehashfunction)
+  - [`defaultHashFunction(key, storeSize)`](#defaulthashfunctionkey-storesize)
+  - [`djb2Hash(string, min?, max?)`](#djb2hashstring-min-max)
+- [Contributing](#contributing)
+- [License](#license)
 
@@ -34,6 +73,520 @@ # Installation
 
-# Usage
+# Overview
 
-# Benchmarks
+BigMap is a scalable Map implementation that overcomes JavaScript's built-in Map limit of approximately 17 million entries. It uses a distributed hash approach with multiple internal Map instances.
 
+# Basic Usage
+
+```typescript
+import { BigMap } from '@keyv/bigmap';
+
+// Create a new BigMap
+const bigMap = new BigMap<string, number>();
+
+// Set values
+bigMap.set('key1', 100);
+bigMap.set('key2', 200);
+
+// Get values
+const value = bigMap.get('key1'); // 100
+
+// Check if key exists
+bigMap.has('key1'); // true
+
+// Delete a key
+bigMap.delete('key1'); // true
+
+// Get size
+console.log(bigMap.size); // 1
+
+// Clear all entries
+bigMap.clear();
+```
+
+## Custom Store Size
+
+By default, BigMap uses 4 internal Map instances. You can configure this:
+
+```typescript
+const bigMap = new BigMap<string, number>({ storeSize: 10 });
+```
+
+**Note:** Changing the `storeSize` after initialization will clear all entries.
+
+## Custom Hash Function
+
+Provide your own hash function for key distribution:
+
+```typescript
+const customHashFunction = (key: string, storeSize: number) => {
+  return key.length % storeSize;
+};
+
+const bigMap = new BigMap<string, string>({
+  storeHashFunction: customHashFunction
+});
+```
+
+## Iteration
+
+BigMap supports all standard Map iteration methods:
+
+### For...of Loop
+
+```typescript
+const bigMap = new BigMap<string, number>();
+bigMap.set('a', 1);
+bigMap.set('b', 2);
+
+for (const [key, value] of bigMap) {
+  console.log(key, value);
+}
+```
+
+## forEach
+
+```typescript
+bigMap.forEach((value, key) => {
+  console.log(key, value);
+});
+
+// With custom context
+const context = { sum: 0 };
+bigMap.forEach(function(value) {
+  this.sum += value;
+}, context);
+```
+
+## Keys, Values, and Entries
+
+```typescript
+// Iterate over keys
+for (const key of bigMap.keys()) {
+  console.log(key);
+}
+
+// Iterate over values
+for (const value of bigMap.values()) {
+  console.log(value);
+}
+
+// Iterate over entries
+for (const [key, value] of bigMap.entries()) {
+  console.log(key, value);
+}
+```
+
+## Advanced Features
+
+### Type Safety with Generics
+
+```typescript
+interface User {
+  id: number;
+  name: string;
+}
+
+const userMap = new BigMap<string, User>();
+userMap.set('user1', { id: 1, name: 'Alice' });
+```
+
+### Large-Scale Data
+
+BigMap is designed to handle millions of entries:
+
+```typescript
+const bigMap = new BigMap<string, number>({ storeSize: 16 });
+
+// Add 20+ million entries without hitting Map limits
+for (let i = 0; i < 20000000; i++) {
+  bigMap.set(`key${i}`, i);
+}
+
+console.log(bigMap.size); // 20000000
+```
+
+## Using with Keyv
+
+BigMap can be used as a storage adapter for [Keyv](https://github.com/jaredwray/keyv), providing a scalable in-memory store with TTL support.
+
+### `createKeyv(options?)`
+
+The `createKeyv` function creates a Keyv instance with BigMap as the storage adapter.
+
+**Parameters:**
+- `options` (optional): BigMap configuration options
+  - `storeSize` (number): Number of internal Map instances. Default: `4`
+  - `storeHashFunction` (StoreHashFunction): Custom hash function for key distribution
+
+**Returns:** `Keyv` instance with BigMap adapter
+
+**Example:**
+
+```typescript
+import { createKeyv } from '@keyv/bigmap';
+
+// Basic usage
+const keyv = createKeyv();
+
+// Set with TTL (in milliseconds)
+await keyv.set('user:123', { name: 'Alice', age: 30 }, 60000); // Expires in 60 seconds
+
+// Get value
+const user = await keyv.get('user:123');
+console.log(user); // { name: 'Alice', age: 30 }
+
+// Check if key exists
+const exists = await keyv.has('user:123');
+
+// Delete key
+await keyv.delete('user:123');
+
+// Clear all keys
+await keyv.clear();
+```
+
+### With Custom Options
+
+```typescript
+import { createKeyv } from '@keyv/bigmap';
+
+// Create with custom store size for better performance with millions of keys
+const keyv = createKeyv({ storeSize: 16 });
+
+// With custom hash function
+const keyv = createKeyv({
+  storeSize: 8,
+  storeHashFunction: (key, storeSize) => {
+    // Custom distribution logic
+    return key.length % storeSize;
+  }
+});
+```
+
+### Type Safety
+
+```typescript
+import { createKeyv } from '@keyv/bigmap';
+
+interface Product {
+  id: string;
+  name: string;
+  price: number;
+}
+
+const keyv = createKeyv<string, Product>();
+
+await keyv.set('product:1', {
+  id: '1',
+  name: 'Laptop',
+  price: 999
+});
+
+const product = await keyv.get<Product>('product:1');
+```
+
+### Integration with Keyv Ecosystem
+
+BigMap works seamlessly with the Keyv ecosystem:
+
+```typescript
+import { createKeyv } from '@keyv/bigmap';
+
+const cache = createKeyv({ storeSize: 16 });
+
+// Use with namespaces
+const users = cache.namespace('users');
+const products = cache.namespace('products');
+
+await users.set('123', { name: 'Alice' });
+await products.set('456', { name: 'Laptop' });
+
+// Iterate over keys
+for await (const [key, value] of cache.iterator()) {
+  console.log(key, value);
+}
+```
+
+# API
+
+# Constructor
+
+ `new BigMap<K, V>(options?)`
+
+Creates a new BigMap instance.
+
+**Parameters:**
+- `options` (optional): Configuration options
+  - `storeSize` (number): Number of internal Map instances to use. Default: `4`. Must be at least 1.
+  - `storeHashFunction` (StoreHashFunction): Custom hash function for key distribution. Default: `defaultHashFunction`
+
+**Example:**
+```typescript
+const bigMap = new BigMap<string, number>();
+const customBigMap = new BigMap<string, number>({
+  storeSize: 10,
+  storeHashFunction: (key, storeSize) => key.length % storeSize
+});
+```
+
+## Properties
+
+| Property | Type | Access | Description |
+|----------|------|--------|-------------|
+| `size` | `number` | Read-only | Gets the total number of entries in the BigMap. |
+| `storeSize` | `number` | Read/Write | Gets or sets the number of internal Map instances. **Note:** Setting this will clear all entries. Default: `4` |
+| `storeHashFunction` | `StoreHashFunction \| undefined` | Read/Write | Gets or sets the hash function used for key distribution. |
+| `store` | `Array<Map<K, V>>` | Read-only | Gets the internal array of Map instances. |
+
+**Examples:**
+```typescript
+const bigMap = new BigMap<string, number>();
+
+// size property
+bigMap.set('key1', 100);
+console.log(bigMap.size); // 1
+
+// storeSize property
+console.log(bigMap.storeSize); // 4 (default)
+bigMap.storeSize = 8; // Changes size and clears all entries
+
+// storeHashFunction property
+bigMap.storeHashFunction = (key, storeSize) => key.length % storeSize;
+
+// store property
+console.log(bigMap.store.length); // 8
+```
+
+# Methods
+
+## `set(key, value)`
+
+Sets the value for a key in the map.
+
+**Parameters:**
+- `key` (K): The key to set
+- `value` (V): The value to associate with the key
+
+**Returns:** `Map<K, V>` - The internal Map instance where the key was stored
+
+**Example:**
+```typescript
+bigMap.set('user123', { name: 'Alice' });
+```
+
+## `get(key)`
+
+Gets the value associated with a key.
+
+**Parameters:**
+- `key` (K): The key to retrieve
+
+**Returns:** `V | undefined` - The value, or undefined if not found
+
+**Example:**
+```typescript
+const value = bigMap.get('user123');
+```
+
+## `has(key)`
+
+Checks if a key exists in the map.
+
+**Parameters:**
+- `key` (K): The key to check
+
+**Returns:** `boolean` - True if the key exists, false otherwise
+
+**Example:**
+```typescript
+if (bigMap.has('user123')) {
+  console.log('User exists');
+}
+```
+
+## `delete(key)`
+
+Deletes a key-value pair from the map.
+
+**Parameters:**
+- `key` (K): The key to delete
+
+**Returns:** `boolean` - True if the entry was deleted, false if the key was not found
+
+**Example:**
+```typescript
+const deleted = bigMap.delete('user123');
+```
+
+## `clear()`
+
+Removes all entries from the map.
+
+**Returns:** `void`
+
+**Example:**
+```typescript
+bigMap.clear();
+console.log(bigMap.size); // 0
+```
+
+## `forEach(callbackfn, thisArg?)`
+
+Executes a provided function once for each key-value pair.
+
+**Parameters:**
+- `callbackfn` (function): Function to execute for each entry
+  - `value` (V): The value of the current entry
+  - `key` (K): The key of the current entry
+  - `map` (Map<K, V>): The BigMap instance
+- `thisArg` (optional): Value to use as `this` when executing the callback
+
+**Returns:** `void`
+
+**Example:**
+```typescript
+bigMap.forEach((value, key) => {
+  console.log(`${key}: ${value}`);
+});
+
+// With custom context
+const context = { total: 0 };
+bigMap.forEach(function(value) {
+  this.total += value;
+}, context);
+```
+
+## `keys()`
+
+Returns an iterator of all keys in the map.
+
+**Returns:** `IterableIterator<K>`
+
+**Example:**
+```typescript
+for (const key of bigMap.keys()) {
+  console.log(key);
+}
+```
+
+## `values()`
+
+Returns an iterator of all values in the map.
+
+**Returns:** `IterableIterator<V>`
+
+**Example:**
+```typescript
+for (const value of bigMap.values()) {
+  console.log(value);
+}
+```
+
+## `entries()`
+
+Returns an iterator of all key-value pairs in the map.
+
+**Returns:** `IterableIterator<[K, V]>`
+
+**Example:**
+```typescript
+for (const [key, value] of bigMap.entries()) {
+  console.log(key, value);
+}
+```
+
+## `[Symbol.iterator]()`
+
+Returns an iterator for the map (same as `entries()`). Enables `for...of` loops.
+
+**Returns:** `IterableIterator<[K, V]>`
+
+**Example:**
+```typescript
+for (const [key, value] of bigMap) {
+  console.log(key, value);
+}
+```
+
+## `getStore(key)`
+
+Gets the internal Map instance for a specific key.
+
+**Parameters:**
+- `key` (K): The key to find the store for
+
+**Returns:** `Map<K, V>` - The internal Map instance
+
+**Example:**
+```typescript
+const store = bigMap.getStore('user123');
+```
+
+## `getStoreMap(index)`
+
+Gets the internal Map instance at a specific index.
+
+**Parameters:**
+- `index` (number): The index of the Map to retrieve (0 to storeSize - 1)
+
+**Returns:** `Map<K, V>` - The Map at the specified index
+
+**Throws:** Error if index is out of bounds
+
+**Example:**
+```typescript
+const firstMap = bigMap.getStoreMap(0);
+```
+
+## `initStore()`
+
+Initializes the internal store with empty Map instances. Called automatically during construction.
+
+**Returns:** `void`
+
+# Types
+
+## `StoreHashFunction`
+
+Type definition for custom hash functions.
+
+```typescript
+type StoreHashFunction = (key: string, storeSize: number) => number;
+```
+
+**Parameters:**
+- `key` (string): The key to hash (converted to string)
+- `storeSize` (number): The number of stores (adjusted for zero-based index)
+
+**Returns:** `number` - The index of the store to use (0 to storeSize - 1)
+
+## `defaultHashFunction(key, storeSize)`
+
+The default hash function using DJB2 algorithm.
+
+**Example:**
+```typescript
+import { defaultHashFunction } from '@keyv/bigmap';
+
+const index = defaultHashFunction('myKey', 4);
+```
+
+## `djb2Hash(string, min?, max?)`
+
+DJB2 hash algorithm implementation.
+
+**Parameters:**
+- `string` (string): The string to hash
+- `min` (number): Minimum value. Default: `0`
+- `max` (number): Maximum value. Default: `10`
+
+**Returns:** `number` - Hash value within the specified range
+
+**Example:**
+```typescript
+import { djb2Hash } from '@keyv/bigmap';
+
+const hash = djb2Hash('myKey', 0, 10);
+```
+
 # Contributing
@@ -40,0 +593,0 @@

No alert changes

Improved metrics

Total package byte prevSize

44650

44.47%

Lines of code

673

4.34%

Number of lines in readme file

595

1316.67%

Worsened metrics

Dependency count

2

100%

Dependency changes

• + Added

  @keyv/serialize@1.1.1
  (transitive)

• + Added

  keyv@5.6.0
  (transitive)

• Updated

  hookified@^1.12.2