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https://github.com/pannh/swift-database

A light-weight module to interact with your local JSON database.
https://github.com/pannh/swift-database

database json nosql

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A light-weight module to interact with your local JSON database.

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README

        

![npm version](https://img.shields.io/npm/v/swift-database?color=c80000&label=npm%20version) ![Downloads](https://img.shields.io/npm/dt/swift-database?label=Downloads)

# 🗃 swift-database

> `swift-database` is a module that allows you to interact easily with your local JSON file.

## 🔰 Getting started

1. Install the module

```
npm install swift-database
```

2. Initialize the database class

```javascript
const { default: JSONDatabase } = require('swift-database');

const database = new Database({
filePath: 'path/to/file.json'
});
```

3. Create your first table and load it

```javascript
database.createTable('users');

const users = database.table('users');
```

4. Interact with that table

```javascript
users.createOne({
fullName: 'John Doe',
hobbies: ['programming', 'sport']
});

const userDocument = users.findOne(
(userDocument) => userDocument.value.fullName === 'John Doe'
);

users.deleteOne(userDocument.id);
```

## 📖 Documentation

JSONDatabase

> Represents the database.

Constructor

| Parameter | Type | Required | Default | Description |
| :-------: | :--------------------: | :------: | :-----: | :-------------------: |
| `options` | `{ filePath: string }` | ✓ | _None_ | The database options. |

**Example :**

```javascript
const database = new JSONDatabase({
filePath: 'path/to/file.json'
});
```

JSONDatabase.tables

> Returns an array of each table's name.

**Type:** `string[]`

JSONDatabase.table(name)

> Loads a table from the database.

| Parameter | Type | Required | Default | Description |
| :-------: | :------: | :------: | :-----: | :-------------------------------------: |
| `name` | `string` | ✓ | _None_ | The name of the table you want to load. |

**Returns:** `DatabaseTable`

**Example :**

```javascript
const users = database.table('users');
```

JSONDatabase.createTable(name)

> Creates a new table into the database.

| Parameter | Type | Required | Default | Description |
| :-------: | :------: | :------: | :-----: | :---------------------------------------: |
| `name` | `string` | ✓ | _None_ | The name of the table you want to create. |

**Returns:** `DatabaseTable`

**Example :**

```javascript
const users = database.createTable('users');
```

JSONDatabase.deleteTable(name)

> Delete an existing table from the database.

| Parameter | Type | Required | Default | Description |
| :-------: | :------: | :------: | :-----: | :---------------------------------------: |
| `name` | `string` | ✓ | _None_ | The name of the table you want to delete. |

**Returns:** `void`

**Example :**

```javascript
database.deleteTable('users');
```

---

DatabaseTable

> Represents a database table.

DatabaseTable.size

> Returns the amount of documents inside the table.

**Type:** `number`

DatabaseTable.all

> Returns an array of every table documents.

**Type:** `TableDocument[]`

DatabaseTable.getById(documentId)

> Returns the table document that matches the specified id.

| Parameter | Type | Required | Default | Description |
| :----------: | :------: | :------: | :-----: | :-------------------------------------: |
| `documentId` | `string` | ✓ | _None_ | The id of the document you want to get. |

**Returns:** `TableDocument`

**Example :**

```javascript
const DOCUMENT_ID = '0557f4db-5688-4d99-8f85-a83605cf8c1e';

const userDocument = users.getById(DOCUMENT_ID);
```

DatabaseTable.findOne(predicate)

> Returns the first table document that matches the predicate.

| Parameter | Type | Required | Default | Description |
| :---------: | :-----------------: | :------: | :-----: | :---------------------------------------------------------: |
| `predicate` | `PredicateFunction` | ✓ | _None_ | The predicate function you want to filter the documents by. |

💡 `PredicateFunction` = `(document: TableDocument, index: number, table: object[]) => boolean`

**Returns:** `TableDocument`

**Example :**

```javascript
const userDocument = users.findOne(
(userDocument) => userDocument.value.fullName === 'John Doe'
);
```

DatabaseTable.findMany(predicate)

> Returns every documents that match the predicate.

| Parameter | Type | Required | Default | Description |
| :---------: | :-----------------: | :------: | :-----: | :---------------------------------------------------------: |
| `predicate` | `PredicateFunction` | ✓ | _None_ | The predicate function you want to filter the documents by. |

💡 `PredicateFunction` = `(document: TableDocument, index: number, table: object[]) => boolean`

**Returns:** `TableDocument[]`

**Example :**

```javascript
const userDocuments = users.findMany((userDocument) =>
userDocument.value.hobbies.includes('programming')
);
```

DatabaseTable.createOne(data)

> Creates a new table document and returns it.

| Parameter | Type | Required | Default | Description |
| :-------: | :------: | :------: | :-----: | :------------------: |
| `data` | `object` | ✓ | _None_ | The document's data. |

**Returns:** `TableDocument`

**Example :**

```javascript
const createdUserDocument = users.createOne({
fullName: 'John Doe',
hobbies: ['programming', 'sport']
});
```

DatabaseTable.createMany(...data)

> Creates many table documents and returns them.

| Parameter | Type | Required | Default | Description |
| :-------: | :--------: | :------: | :-----: | :-------------------------------: |
| `data` | `object[]` | ✓ | _None_ | An array of each document's data. |

**Returns:** `TableDocument[]`

**Example :**

```javascript
const createdUserDocuments = users.createMany(
{
fullName: 'John Doe',
hobbies: ['programming', 'sport']
},
{
fullName: 'Alice Doe',
hobbies: ['studying', 'videogames']
}
);
```

DatabaseTable.deleteOne(documentId)

> Deletes a table document.

| Parameter | Type | Required | Default | Description |
| :----------: | :------: | :------: | :-----: | :----------------------------------------: |
| `documentId` | `string` | ✓ | _None_ | The id of the document you want to delete. |

**Returns:** `TableDocument`

**Example :**

```javascript
const DOCUMENT_ID = '0557f4db-5688-4d99-8f85-a83605cf8c1e';

const deletedUserDocument = users.deleteOne(DOCUMENT_ID);
```

DatabaseTable.deleteMany(...documentIds)

> Deletes many table documents.

| Parameter | Type | Required | Default | Description |
| :-----------: | :--------: | :------: | :-----: | :------------------------------------------------: |
| `documentIds` | `string[]` | ✓ | _None_ | An array of each document's id you want to delete. |

**Returns:** `TableDocument[]`

**Example :**

```javascript
const DOCUMENT_IDS = [
'0557f4db-5688-4d99-8f85-a83605cf8c1e',
'2fe5a45e-1ffe-47ba-ab14-ac94ee26ec68'
];

const deletedUserDocuments = users.deleteMany(DOCUMENT_IDS);
```

DatabaseTable.update(documentId, data)

> Updates a table document.

| Parameter | Type | Required | Default | Description |
| :----------: | :------: | :------: | :-----: | :----------------------------------------: |
| `documentId` | `string` | ✓ | _None_ | The id of the document you want to update. |
| `data` | `object` | ✓ | _None_ | The data you want to update. |

**Returns:** `TableDocument`

**Example :**

```javascript
const DOCUMENT_ID = '0557f4db-5688-4d99-8f85-a83605cf8c1e';

// Before: TableDocument { id: ..., value: { fullName: 'Alice Doe', ... } }
const updatedUserDocument = users.update(DOCUMENT_ID, {
fullName: 'Alice Dart'
});
// After: TableDocument { id: ..., value: { fullName: 'Alice Dart', ... } }
```

DatabaseTable.increment(documentId, propertyKey, value)

> Increments a document's property.

| Parameter | Type | Required | Default | Description |
| :-----------: | :------: | :------: | :-----: | :-------------------------------------------------: |
| `documentId` | `string` | ✓ | _None_ | The id of the document you want to make changes on. |
| `propertyKey` | `string` | ✓ | _None_ | The key of the property you want to increment. |
| `value` | `string` | X | `1` | The value you want to increment the property by. |

**Returns:** `TableDocument`

**Example :**

```javascript
const DOCUMENT_ID = '0557f4db-5688-4d99-8f85-a83605cf8c1e';

// Before: TableDocument { id: ..., value: { age: 21, ... } }
const updatedUserDocument = users.increment(DOCUMENT_ID, 'age');
// After: TableDocument { id: ..., value: { age: 22, ... } }
```

DatabaseTable.decrement(documentId, propertyKey, value)

> Decrements a document's property.

| Parameter | Type | Required | Default | Description |
| :-----------: | :------: | :------: | :-----: | :-------------------------------------------------: |
| `documentId` | `string` | ✓ | _None_ | The id of the document you want to make changes on. |
| `propertyKey` | `string` | ✓ | _None_ | The key of the property you want to decrement. |
| `value` | `string` | X | `1` | The value you want to decrement the property by. |

**Returns:** `TableDocument`

**Example :**

```javascript
const DOCUMENT_ID = '0557f4db-5688-4d99-8f85-a83605cf8c1e';

// Before: TableDocument: { id: ..., value: { lives: 3, ... } }
const updatedUserDocument = users.decrement(DOCUMENT_ID, 'lives');
// After: TableDocument: { id: ..., value: { lives: 2, ... } }
```

DatabaseTable.multiply(documentId, propertyKey, value)

> Multiplies a document's property.

| Parameter | Type | Required | Default | Description |
| :-----------: | :------: | :------: | :-----: | :-------------------------------------------------: |
| `documentId` | `string` | ✓ | _None_ | The id of the document you want to make changes on. |
| `propertyKey` | `string` | ✓ | _None_ | The key of the property you want to multiply. |
| `value` | `string` | ✓ | _None_ | The value you want to multiply the property by. |

**Returns:** `TableDocument`

**Example :**

```javascript
const DOCUMENT_ID = '0557f4db-5688-4d99-8f85-a83605cf8c1e';

// Before: TableDocument: { id: ..., value: { chances: 10, ... } }
const updatedUserDocument = users.multiply(DOCUMENT_ID, 'chances', 1.5);
// After: TableDocument: { id: ..., value: { chances: 15, ... } }
```

DatabaseTable.divide(documentId, propertyKey, value)

> Divides a document's property.

| Parameter | Type | Required | Default | Description |
| :-----------: | :------: | :------: | :-----: | :-------------------------------------------------: |
| `documentId` | `string` | ✓ | _None_ | The id of the document you want to make changes on. |
| `propertyKey` | `string` | ✓ | _None_ | The key of the property you want to divide. |
| `value` | `string` | ✓ | _None_ | The value you want to divide the property by. |

**Returns:** `TableDocument`

**Example :**

```javascript
const DOCUMENT_ID = '0557f4db-5688-4d99-8f85-a83605cf8c1e';

// Before: TableDocument: { id: ..., value: { chances: 10, ... } }
const updatedUserDocument = users.divide(DOCUMENT_ID, 'chances', 2);
// Before: TableDocument: { id: ..., value: { chances: 5, ... } }
```

DatabaseTable.deleteProperty(documentId, key)

> Deletes a document's property.

| Parameter | Type | Required | Default | Description |
| :----------: | :------: | :------: | :-----: | :-------------------------------------------------: |
| `documentId` | `string` | ✓ | _None_ | The id of the document you want to make changes on. |
| `key` | `string` | ✓ | _None_ | The key of the property you want to delete. |

**Returns:** `TableDocument`

**Example :**

```javascript
const DOCUMENT_ID = '0557f4db-5688-4d99-8f85-a83605cf8c1e';

// Before: TableDocument: { id: ..., value: { fullName: 'John Doe', age: 21 } }
const updatedUserDocument = users.deleteProperty(DOCUMENT_ID, 'fullName');
// Before: TableDocument: { id: ..., value: { age: 21 } }
```

DatabaseTable.push(documentId, propertyKey, ...items)

> Pushes items into an array document's property;

| Parameter | Type | Required | Default | Description |
| :-----------: | :------: | :------: | :-----: | :---------------------------------------------------------: |
| `documentId` | `string` | ✓ | _None_ | The id of the document you want to make changes on. |
| `propertyKey` | `string` | ✓ | _None_ | The key to the array property you want to push the item to. |
| `items` | `any[]` | ✓ | _None_ | The items you want to push into the array. |

**Returns:** `TableDocument`

**Example :**

```javascript
const DOCUMENT_ID = '0557f4db-5688-4d99-8f85-a83605cf8c1e';

// Before: TableDocument: { id: ..., value: { hobbies: ['programming'], ... } }
const updatedUserDocument = users.push(DOCUMENT_ID, 'hobbies', 'tennis');
// Before: TableDocument: { id: ..., value: { hobbies: ['programming', 'tennis'], ... } }
```

---

TableDocument

> Represents a table document.

TableDocument.id

> Returns the document's id.

**Type:** `string`

TableDocument.value

> Returns the document's data.

**Type:** `object`