@configurator/ravendb
RavenDB client for Node.js
Last updated 2 years ago by configurator .
MIT · Repository · Bugs · Original npm · Tarball · package.json
$ cnpm install @configurator/ravendb 
SYNC missed versions from official npm registry.

RavenDB client for Node.js

Installation

npm install --save ravendb

Getting started

  1. Require DocumentStore class from package
const {DocumentStore} = require('ravendb');

or

const DocumentStore = require('ravendb').default;

or (using ES6 / Typescript imports)

import DocumentStore from 'ravendb';
  1. Initialize document store (this can be kept as a global object)
const store = DocumentStore.create('database url', 'default database name');
store.initialize();
  1. Open a session
const session = store.openSession();
  1. Call saveChanges() when you'll finish working with a session
session
 .load('Users/1-A')
 .then((user) => {
   user.password = PBKDF2('new password');

   return session.store(user);
 })
 .then(() => session.saveChanges())
 .then(() => {
    // here you can finish request
  });

Supported asynchronous call types

  1. You can use callbacks
session
 .load('Users/1-A', (user) => {
   user.password = PBKDF2('new password');

   session.store(user, null, () => {
     session.saveChanges(() => {
       // here session is complete
     });
   });
 })
  1. You can use promises as well
session
 .load('Users/1-A')
 .then((user) => {
   user.password = PBKDF2('new password');

   return session.store(user);
 })
 .then(() => session.saveChanges())
 .then(() => {
    // here session is complete
  });
  1. With co library or frameworks using it (such as AdonisJS) you can yield calls
const co = require('co');

// ...

co(function * () {
  session = store.openSession();

  let user = yield store.load('Users/1-A');

  user.password = PBKDF2('new password');
  yield session.store(user);

  yield session.saveChanges();

  // here session is complete
});
  1. Also client is supporting async / await stuff
async () => {
  session = store.openSession();

  let user = await store.load('Users/1-A');

  user.password = PBKDF2('new password');
  await session.store(user);

  await session.saveChanges();

  // here session is complete
})

CRUD example

Creating documents

let product = {
  title: 'iPhone X',
  price: 999.99,
  currency: 'USD',
  storage: 64,
  manufacturer: 'Apple',
  in_stock: true,
  last_update: new Date('2017-10-01T00:00:00')
};

product = await session.store(product, 'Products/');
console.log(product.id); // will output Products/<some number>-<some letter (server node tag)> e.g. Products/1-A
await session.saveChanges();

Loading documents

product = await session.load('Products/1-A');
console.log(product.title); // iPhone X
console.log(product.id); // Products/1-A

Updating documents

product = await session.load('Products/1-A');
product.in_stock = false;
product.last_update = new Date();
await session.store(product);
await session.saveChanges();

product = await session.load('Products/1-A');
console.log(product.in_stock); // false
console.log(product.last_update); // outputs current date

Deleting documents

product = await session.load('Products/1-A');
await session.delete(product);
// or you can just do
// await session.delete('Products/1-A');
await session.saveChanges();

product = await session.load('Products/1-A');
console.log(product); // undefined

Querying documents

  1. Create DocumentQuery instance using query() method of session:
query = session.query({
  collection: 'Products', // specify which collection you'd like to query
  // optionally you may specify an index name for querying
  // indexName: 'PopularProductsWithViewsCount'
});
  1. Apply conditions, ordering etc. Query supports chaining calls:
const {DocumentStore, QueryOperators} = require('ravendb');

// ...

query
  .waitForNonStaleResults()
  .usingDefaultOperator(QueryOperators.And)  
  .whereEquals('manufacturer', 'Apple')
  .whereEquals('in_stock', true)
  .whereBetween('last_update', new Date('2017-10-01T00:00:00'), new Date())
  .orderBy('price');
  1. Finally, you may get query results:
let documents = await query.all();

DocumentQuery methods overview

Method RQL / description
selectFields(fields: string[], 
projections?: string[]): IDocumentQuery<T>;
SELECT field1 [AS projection1], ...
distinct(): IDocumentQuery<T>;
SELECT DISTINCT
whereEquals
<V extends ConditionValue>(
fieldName: string, value: V, 
exact?: boolean)
: IDocumentQuery<T>;
WHERE fieldName = <value>
whereNotEquals
<V extends ConditionValue>(
fieldName: string, value: V, 
exact?: boolean)
: IDocumentQuery<T>;
WHERE fieldName != <value>
whereIn
<V extends ConditionValue>(
fieldName: string, values: V[], 
exact?: boolean)
: IDocumentQuery<T>;
WHERE fieldName IN (<value1>, <value2>, ...)
whereStartsWith
<V extends ConditionValue>(
fieldName: string, value: V)
: IDocumentQuery<T>;
WHERE startsWith(fieldName, '<value>')
whereEndsWith
<V extends ConditionValue>(
fieldName: string, value: V)
: IDocumentQuery<T>;
WHERE endsWith(fieldName, '<value>')
whereBetween
<V extends ConditionValue>(
fieldName: string, start: V, end: V, 
exact?: boolean) : IDocumentQuery<T>;
WHERE fieldName BETWEEN <start> AND <end>
whereGreaterThan
<V extends ConditionValue>(
fieldName: string, value: V, 
exact?: boolean)
: IDocumentQuery<T>;
WHERE fieldName > <value>
whereGreaterThanOrEqual
<V extends ConditionValue>(
fieldName: string, value: V, 
exact?: boolean)
: IDocumentQuery<T>;
WHERE fieldName >= <value>
whereLessThan
<V extends ConditionValue>(
fieldName: string, value: V, 
exact?: boolean)
: IDocumentQuery<T>;
WHERE fieldName < <value>
whereLessThanOrEqual
<V extends ConditionValue>(
fieldName: string, value: V, 
exact?: boolean)
: IDocumentQuery<T>;
WHERE fieldName <= <value>
whereExists(fieldName: string)
: IDocumentQuery<T>;
WHERE exists(fieldName)
containsAny
<V extends ConditionValue>(
fieldName: string, values: V[])
: IDocumentQuery<T>;
WHERE fieldName IN (<value1>, <value2>, ...)
containsAll
<V extends ConditionValue>(
fieldName: string, values: V[])
: IDocumentQuery<T>;
WHERE fieldName ALL IN (<value1>, <value2>, ...)
search(fieldName: string, 
searchTerms: string, 
operator?: SearchOperator)
: IDocumentQuery<T>;
Performs full-text search
openSubclause(): IDocumentQuery<T>;
Opens subclause (
closeSubclause(): IDocumentQuery<T>;
Closes subclause )
negateNext(): IDocumentQuery<T>;
Adds NOT before next condition
andAlso(): IDocumentQuery<T>;
Adds AND before next condition
orElse(): IDocumentQuery<T>;
Adds OR before next condition
usingDefaultOperator
(operator: QueryOperator)
: IDocumentQuery<T>;
Sets default operator (which will be used if no andAlso() / orElse() was called. Just after query instantiation, OR is used as default operator. Default operator can be changed only adding any conditions
orderBy(field: string, 
ordering?: OrderingType)
: IDocumentQuery<T>;
ORDER BY field [DESC]
randomOrdering(seed?: string)
: IDocumentQuery<T>;
ORDER BY random()
take(count: number)
: IDocumentQuery<T>;
Limits the number of result entries to count
skip(count: number)
: IDocumentQuery<T>;
Skips first count results
async first(callback?
: EntityCallback<T>): Promise<T>;
Returns first document from result set
async single(callback?
: EntityCallback<T>): Promise<T>;
Returns single document matching query criteria. If there are no such document or more then one - throws an InvalidOperationException
async all(callback?
: QueryResultsCallback<T[]>): Promise<T[]>;
Returns all documents from result set (considering take() / skip() options)
async count(callback?
: EntitiesCountCallback): Promise<number>;
Returns count of all documents matching query criteria (non-considering take() / skip() options)

Condition value can be a string, number, boolean, null value or Date object:

type ConditionValue = string | number | boolean | Date | null;

Using ECMAScript 2015 classes as models instead of object literals

  1. Define your model as class. Attributes should be just public properties:
class Product {
  constructor(
    id = null,
    title = '',
    price = 0,
    currency = 'USD',
    storage = 0,
    manufacturer = '',
    in_stock = false,
    last_update = null
  ) {
    Object.assign(this, {
      title,
      price,
      currency,
      storage,
      manufacturer,
      in_stock,
      last_update: last_update || new Date()
    });
  }
}
  1. For store model just pass it's instance without specifying collection prefix (e.g. Products/). Collection name will be detected automatically by model's class name
let product = new Product(
  null, 'iPhone X', 999.99, 'USD', 64, 'Apple', true,
   new Date('2017-10-01T00:00:00')
};

product = await session.store(product);
console.log(product instanceof Product); // true
console.log(product.id.includes('Products/')); // true
await session.saveChanges();
  1. When loading document, you need to use session.load() second options param. Pass class constructor as documentType option:
let product = await session.load('Products/1-A', {documentType: Product});
console.log(product instanceof Product); // true
console.log(product.id); // Products/1-A
  1. When querying documents, pass class constructor to documentType option of session.query({ ... }):
let products = await session.query({
  collection: 'Products',
  documentType: Product
}).all();

products.forEach((product) => {
  console.log(product instanceof Product); // true
  console.log(product.id.includes('Products/')); // true
});

Also you can set global models class resolver (something like class autoloader in PHP). It should be a callback function accepting a name of the model class and returning its constructor:

store.conventions.addDocumentInfoResolver({
  resolveConstructor: (className) =>
    require(`./relative/path/to/models/${className}`)[className]
});

session = store.openSession();

let product = await session.load('Products/1-A');
console.log(product instanceof Product); // true
console.log(product.id); // Products/1-A

let products = await session.query({ collection: 'Products' }).all();

products.forEach((product) => {
  console.log(product instanceof Product); // true
  console.log(product.id.includes('Products/')); // true
});

Usage with TypeScript

All datatype definitions you can find in lib/ravendb-node.d.ts. An example of CRUD operations and querying documents you may find below:


// file models/Product.ts

export class Product {
  constructor(
    public id: string = null,
    public title: string = '',
    public price: number = 0,
    public currency: string = 'USD',
    public storage: number = 0,
    public manufacturer: string = '',
    public in_stock: boolean = false,
    public last_update: Date = null
  ) {}
}

export default Product;

// file app.ts
import {DocumentStore, IDocumentStore, IDocumentSession, IDocumentQuery, DocumentConstructor, QueryOperators} from 'ravendb';

const store: IDocumentStore = DocumentStore.create('database url', 'database name');
let session: IDocumentSession;

store.initialize();
store.conventions.addDocumentInfoResolver({
  resolveConstructor: (typeName: string): DocumentConstructor =>
    <DocumentConstructor>require(`./models/${typeName}`)[typeName]
});

(async (): Promise<void> => {
  let product: Product = new Product(
    null, 'iPhone X', 999.99, 'USD', 64, 'Apple', true, new Date('2017-10-01T00:00:00')
  );

  product = await session.store<Product>(product);
  console.log(product instanceof Product); // true
  console.log(product.id.includes('Products/')); // true
  await session.saveChanges();

  product = await session.load<Product>('Products/1-A');
  console.log(product instanceof Product); // true
  console.log(product.id); // Products/1-A

  let products: Product[] = await session
    .query<Product>({ collection: 'Products' })
    .waitForNonStaleResults()
    .usingDefaultOperator(QueryOperators.And)
    .whereEquals<string>('manufacturer', 'Apple')
    .whereEquals<boolean>('in_stock', true)
    .whereBetween<Date>('last_update', new Date('2017-10-01T00:00:00'), new Date())
    .whereGreaterThanOrEqual<number>('storage', 64)
    .all();

  products.forEach((product: Product): void => {
    console.log(product instanceof Product); // true
    console.log(product.id.includes('Products/')); // true
  });
})();

Working with secured server

  1. Fill auth options object. Pass contents of the pem/pfx certificate, specify its type and (optionally) passphrase:
const {DocumentStore, Certificate} = require('ravendb');

const certificate = `
-----BEGIN CERTIFICATE-----
...
-----END CERTIFICATE-----
-----BEGIN RSA PRIVATE KEY-----
...
-----END RSA PRIVATE KEY-----
`;

let authOptions = {
  certificate: certificate,
  type: Certificate.Pem,
  password: 'my passphrase' // optional  
};

Pfx certificates content should be passed as Buffer object:

const {DocumentStore, Certificate} = require('ravendb');
const fs = require('fs');

const certificate = './cert.pfx';

let authOptions = {
  certificate: fs.readFileSync(certificate),
  type: Certificate.Pfx,
  password: 'my passphrase' // optional  
};
  1. Pass auth options as third argument of DocumentStore.create:
let store = DocumentStore.create(
  'database url',
  'default database name',
  authOptions
);

store.initialize();

Auth exceptions

  • if no auth options was provided and you're trying to work with secured server, an NotSupportedException will be thrown during store initialization
  • if certificate is invalid or doesn't have permissions for specific operations, an AuthorizationException will be thrown during working with sessions/querying/sending operations

Advanced features

Attachments support

You can attach binary files to documents.

  1. For attach a file, use PutAttachmentOperation. Pass document id, attachment name (it can be just a file name), content type and file contents as an Buffer object:
const {DocumentStore, PutAttachmentOperation} = require('ravendb');
const path = require('path');
const fs = require('fs');

// ...
const fileName = './iphone-x.png';

await store.operations.send(
  new PutAttachmentOperation(
    'Products/1-A', 
    path.basename(fileName), 
    fs.readFileSync(fileName), 
    'image/png' 
  )
);    
  1. For read an attachment, use GetAttachmentOperation. Pass document id and attachment name. File contents will be stored as an Buffer object inside stream property of response:
const {DocumentStore, PutAttachmentOperation, AttachmentTypes} = require('ravendb');
const fs = require('fs');

// ...
const fileName = 'iphone-x.png';

let attachmentResult = await store.operations.send(
  new GetAttachmentOperation(
    'Products/1-A', 
    fileName, 
    AttachmentTypes.Document
  )
);  

fs.writeFileSync(`./${fileName}`, attachmentResult.stream);
  1. For delete an attachment, use DeleteAttachmentOperation. Pass document id and attachment name.
const {DocumentStore, DeletAttachmentOperation} = require('ravendb');

// ...
const fileName = 'iphone-x.png';

await store.operations.send(
  new DeleteAttachmentOperation(
    'Products/1-A', 
    fileName
  )
);  

Custom document id property

By default document id is stored onto id property of document. But you can define which name of id property should be for specific document types.

  1. Define custom document id property name resolver as callback function. It accepts document type and should return id property name:
// models.item.js
class Item {
  constructor(Id = null, Title = "", Options = []) {
    this.Id = Id;
    this.Title = Title;    
    this.Options = Options;    
  }  
}

exports.Item = Item; 

// index.js
const {DocumentStore} = require('ravendb');
const {Item} = require('./models/item');

const resolveIdProperty = (typeName) => {
  switch (typeName) {
    case Item.name:
      return 'Id';     
    // ...    
  }  
};
  1. Pass this callback to resolveIdProperty option of conventions.addDocumentInfoResolver:
store.conventions.addDocumentInfoResolver({ resolveIdProperty });
  1. Now client will read/fill Id property with document id while doing CRUD operations:
let session = store.openSession();

await session.store(new Item(null, 'First Item', [1, 2, 3]));
await session.saveChanges();

console.log(item.Id); // Items/1-A

session = store.openSession();
let item = await session.load('Items/1-A');

console.log(item.Id); // Items/1-A
console.log(item.Title); // First Item
console.log(item.Options); // [1, 2, 3]

Custom attributes serializer

You can define custom serializers if you need to implement your own logic for convert attributes names/values for specific document types.

  1. Define your serializer as object with onSerialized / onUnserialized methods:
const serializer = {
  onSerialized: (serialized) => {
  },
  onUnserialized: (serialized) => {
  }
};

Where serialized attribute has the following structure:

interface ISerialized<T extends Object = IRavenObject> {
  source: object | T;
  target?: object | T;
  originalAttribute: string;
  serializedAttribute: string;
  originalValue: any;
  serializedValue: any;  
  attributePath: string;
  metadata?: object;
  nestedObjectTypes?: IRavenObject<DocumentConstructor>;
}
  1. Store target attribute name/value into the serializedAttribute/serializedValue properties of serialized parameter:
function capitalize(string) {
  return string.charAt(0).toUpperCase() + string.substring(1);
}

function uncapitalize(string) {
  return string.charAt(0).toLowerCase() + string.substring(1);
}

const serializer = {
  onSerialized: (serialized) => {
    switch (serialized.metadata['Raven-Node-Type']) {
      case Item.name:
        serialized.serializedAttribute = uncapitalize(serialized.originalAttribute);

        if ('Items' === serialized.originalAttribute) {
          serialized.serializedValue = serialized.originalValue.join(",");
        }  

        break;
        // ...  
    }  
  },
  onUnserialized: (serialized) => {
    switch (serialized.metadata['Raven-Node-Type']) {
      case Item.name:
        serialized.serializedAttribute = capitalize(serialized.originalAttribute);

        if ('items' === serialized.originalAttribute) {
          serialized.serializedValue = serialized.originalValue.split(",").map(parseInt);
        }  

        break;
        // ...  
    }  
  }    
};
  1. Pass your serializer object to conventions.addAttributeSerializer:
const {DocumentStore, GetDocumentCommand} = require('ravendb');

store.conventions.addAttributeSerializer(serializer);

let sesssion = store.openSession();

await session.store(new Item(null, 'First Item', [1, 2, 3]));
await session.saveChanges();

session = store.openSession();
let item = await session.load('Items/1-A');

console.log(item.Id); // Items/1-A
console.log(item.Title); // First Item
console.log(item.Options); // [1, 2, 3]

let response = await store.getRequestExecutor().execute(new GetDocumentCommand('Items/1-A'));
let rawDocument = response.Results[0];

console.log(rawDocument['@metadata']['@id']); // Items/1-A
console.log(rawDocument.title); // First Item
console.log(rawDocument.options); // "1,2,3"

Building

npm run build

Running tests

npm test -- -h 192.168.5.44 [-p 8080] [-c path/to/certificate.pem(pfx)] [-t DocumentSerializing [-f]]
Option Description
-h or --ravendb-host= Database host
-p or --ravendb-port= Database port. 8080 by default
-c or --ravendb-certificate= Path to .pem or .pfx certificate. If specified, test runner will use https protocol
-t or --test= Test name. For run multiple test, specify each test in separate --test= option. By default runs all tests
-f or --no-fixtures Skip executing database fixtures (create test database, put test indexes etc). Can be usable for tests which doesn't executes raven commands (e.g. DocumentSerializing)

Current Tags

  • 4.0.0-rc4                                ...           latest (2 years ago)

1 Versions

  • 4.0.0-rc4                                ...           2 years ago
Maintainers (1)
Downloads
Today 1
This Week 1
This Month 1
Last Day 0
Last Week 0
Last Month 2
Dependencies (20)
Dev Dependencies (18)
Dependents (0)
None

Copyright 2014 - 2016 © taobao.org |