@sanity/client

What is @sanity/client?

@sanity/client is a JavaScript client for Sanity.io, a platform for structured content. It allows developers to interact with the Sanity content lake, enabling them to fetch, create, update, and delete documents, as well as perform queries and mutations.

What are @sanity/client's main functionalities?

Fetching Documents

This feature allows you to fetch documents from your Sanity dataset using GROQ queries. The example fetches all documents of type 'post'.

const sanityClient = require('@sanity/client');
const client = sanityClient({
  projectId: 'yourProjectId',
  dataset: 'yourDataset',
  useCdn: true
});

client.fetch('*[_type == "post"]').then(posts => {
  console.log(posts);
});

Creating Documents

This feature allows you to create new documents in your Sanity dataset. The example creates a new document of type 'post' with a title and body.

const sanityClient = require('@sanity/client');
const client = sanityClient({
  projectId: 'yourProjectId',
  dataset: 'yourDataset',
  useCdn: false
});

client.create({
  _type: 'post',
  title: 'Hello World',
  body: 'This is my first post!'
}).then(response => {
  console.log('Document created:', response);
});

Updating Documents

This feature allows you to update existing documents in your Sanity dataset. The example updates the title of a document with a specific ID.

const sanityClient = require('@sanity/client');
const client = sanityClient({
  projectId: 'yourProjectId',
  dataset: 'yourDataset',
  useCdn: false
});

client.patch('documentId')
  .set({ title: 'Updated Title' })
  .commit()
  .then(updatedDocument => {
    console.log('Document updated:', updatedDocument);
  });

Deleting Documents

This feature allows you to delete documents from your Sanity dataset. The example deletes a document with a specific ID.

const sanityClient = require('@sanity/client');
const client = sanityClient({
  projectId: 'yourProjectId',
  dataset: 'yourDataset',
  useCdn: false
});

client.delete('documentId').then(response => {
  console.log('Document deleted:', response);
});

Other packages similar to @sanity/client

contentful

Contentful is a content management platform that provides a similar set of functionalities for managing structured content. It allows you to fetch, create, update, and delete content entries. Compared to @sanity/client, Contentful offers a more traditional CMS experience with a focus on ease of use and integration with various front-end frameworks.

prismic-javascript

Prismic is another headless CMS that offers a JavaScript client for interacting with its API. It provides functionalities for querying, creating, and managing content. Prismic's API is more RESTful compared to Sanity's GROQ-based querying, and it emphasizes a slice-based content modeling approach.

strapi-sdk-javascript

Strapi is an open-source headless CMS that provides a JavaScript SDK for interacting with its API. It allows you to perform CRUD operations on your content types. Strapi is highly customizable and can be self-hosted, offering more control over the backend compared to Sanity.

README

Sanity client

Javascript client for Sanity. Works in browsers (IE8+) and node.js.

Requirements

Sanity Client requires the JavaScript runtime to have a global ES6-compliant Promise available. If your runtime environment doesn't provide a spec compliant Promise implementation, we recommend using native-promise-only, es6-promise or another spec-compliant implementation.

Installation

The client can be installed from npm:

npm install --save @sanity/client

API

const sanityClient = require('@sanity/client')
const client = sanityClient({
  projectId: 'your-project-id',
  dataset: 'bikeshop',
  token: 'sanity-auth-token' // or leave blank to be anonymous user
})

const client = sanityClient(options)

Initializes a new Sanity Client. Required options are projectId, dataset and token.

Performing queries

const query = 'bikeshop.bikes[seats >= $minSeats] {name, seats}'
const params = {minSeats: 2}

client.fetch(query, params).then(bikes => {
  console.log('Bikes with more than one seat:')
  bikes.forEach(bike => {
    console.log(`${bike.name} (${bike.seats} seats)`)
  })
})

client.fetch(query, params = {})

Perform a query using the given parameters (if any).

Listening to queries

const query = 'bikeshop.comment[authorId != $ownerId]'
const params = {ownerId: 'bikeOwnerUserId'}

const subscription = client.listen(query, params)
  .subscribe(comment => {
    console.log(`${comment.author} commented: ${comment.text}`)
  })

client.listen(query, params = {}, options = {includeResult: true})

Open a query that listens for updates on matched documents, using the given parameters (if any). The return value is an Observable. When calling subscribe() on the observable, a subscription is returned which can be used to unsubscribe from the query.

The objects which are emitted always contain mutation, which is an object containing the mutation which triggered the document to appear as part of the query.

By default, the emitted object will also contain a result property, which contains the document with the mutation applied to it. In case of a delete mutation, this property will not be present, however. You can also tell the client not to return the document (to save bandwidth, or in cases where the mutation or the document ID is the only relevant factor) by setting the includeResult property to false in the options.

Likewise, you can also have the client return the document before the mutation was applied, by settingincludePreviousRevision to true in the options, which will include a previous property in each emitted object.

Creating documents

const doc = {
  _type: 'bikeshop.bike',
  name: 'Bengler Tandem Extraordinaire',
  seats: 2
}

client.create(doc).then(res => {
  console.log(`Bike was created, document ID is ${res.documentId}`)
})

client.create(doc)

Create a document. Parameter is a plain JS object representing the document.

Patch/update a document

client
  .patch('bikeshop/bike-123') // Document ID to patch
  .set({inStock: false}) // Shallow merge
  .inc({numSold: 1}) // Increment field by count
  .commit() // Perform the patch and return a promise
  .then(() => {
    console.log('Hurray, the bike is updated!')
  })
  .catch(err => {
    console.error('Oh no, the update failed: ', err.message)
  })

client.patch(docId).set(partialDoc).inc({key: value}).commit()

Modify a document. patch takes a document ID. set merges the partialDoc with the stored document. inc increments the given field with the given numeric value. commit executes the given patch.

Delete a document

client.delete('bikeshop/bike-123')
  .then(res => {
    console.log('Bike deleted')
  })
  .catch(err => {
    console.error('Delete failed: ', err.message)
  })

client.delete(docId)

Delete a document. Parameter is a document ID.

Multiple mutations in a transaction

const namePatch = client
  .patch('bikeshop/bike-310')
  .set({name: 'A Bike To Go'})

client.transaction()
  .create({name: 'Bengler Tandem Extraordinaire', seats: 2})
  .delete('bikeshop/bike-123')
  .patch(namePatch)
  .commit()
  .then(res => {
    console.log('Whole lot of stuff just happened')
  })
  .catch(err => {
    console.error('Transaction failed: ', err.message)
  })

client.transaction().create(doc).delete(docId).patch(patch).commit()

Create a transaction to perform chained mutations.

client.transaction()
  .create({name: 'Bengler Tandem Extraordinaire', seats: 2})
  .patch('bikeshop/bike-123', p => p.set({inStock: false}))
  .commit()
  .then(res => {
    console.log('Bike created and a different bike is updated')
  })
  .catch(err => {
    console.error('Transaction failed: ', err.message)
  })

client.transaction().create(doc).patch(docId, p => p.set(partialDoc)).commit()

A patch can be performed inline on a transaction.

Clientless patches & transactions

Transactions and patches can also be built outside the scope of a client:

const sanityClient = require('@sanity/client')
const client = sanityClient({
  projectId: 'your-project-id',
  dataset: 'bikeshop'
})

// Patches:
const patch = new sanityClient.Patch('<documentId>')
client.mutate(patch.inc({count: 1}).unset(['visits']))

// Transactions:
const transaction = new sanityClient.Transaction()
  .create({_id: 'foo/123', name: 'FooBike'})
  .delete('foo/bar')

client.mutate(transaction)

const patch = new sanityClient.Patch(docId)

const transaction = new sanityClient.Transaction()

A few notes on this approach:

• You cannot call commit() on transactions or patches instantiated this way, instead you have to pass them to client.mutate()
• Documents passed to create, createIfNotExists and createOrReplace needs to include an _id property, since it cannot infer which dataset it should belong to. If you want Sanity to auto-generate one for you, set _id to <datasetName>/

Get client configuration

const config = client.config()
console.log(config.dataset)

client.config()

Get client configuration.

Set client configuration

client.config({dataset: 'newDataset'})

client.config(options)

Set client configuration. Required options are projectId, dataset and token.