informaticacba / unsplash-js

🤖 A server-side JavaScript wrapper for the Unsplash API

Unsplash

Official Javascript wrapper for the Unsplash API.

Key Links:

• Before using the Unsplash API, register as a developer.
• Before using the Unsplash API, read the API Guidelines. Specifically, you must:
  • hotlink images
  • attribute photographers
  • trigger a download when appropriate
• Once you create an application and have an access key, go try the demos:
  • javascript
  • typescript

Documentation

• Installation
• Dependencies
• Usage
• Types
• Instance Methods

Installation

$ npm i --save unsplash-js

# OR

$ yarn add unsplash-js

Dependencies

Fetch

This library depends on fetch to make requests to the Unsplash API. For environments that don't support fetch, you'll need to provide polyfills of your choosing. Here are the ones we recommend:

• node implementation: node-fetch
• browser polyfill: whatwg-fetch

Adding polyfills

createApi receives an optional fetch parameter. When it is not provided, we rely on the globally scoped fetch.

This means that you can set the polyfills in the global scope:

// server
import fetch from 'node-fetch';
global.fetch = fetch;

// browser
import 'whatwg-fetch';

or explicitly provide them as an argument:

import { createApi } from 'unsplash-js';
import nodeFetch from 'node-fetch';

const unsplash = createApi({
  accessKey: 'MY_ACCESS_KEY',
  fetch: nodeFetch,
});

Note: we recommend using a version of node-fetch higher than 2.4.0 to benefit from Brotli compression.

node-fetch and global types

This library presumes that the following types exist in the global namespace:

• fetch
• RequestInit
• Response

By default TypeScript defines these via the "dom" type definitions.

However, if you're targeting Node and you're using node-fetch you should omit the "dom" type definitions using the lib compiler option and then define the required global types manually like so:

import { createApi } from 'unsplash-js';
import * as nodeFetch from 'node-fetch'

declare global {
  var fetch: typeof nodeFetch.default;
  type RequestInit = nodeFetch.RequestInit;
  type Response = nodeFetch.Response;
}
global.fetch = nodeFetch.default;

const unsplash = createApi({
  accessKey: 'MY_ACCESS_KEY',
  fetch: nodeFetch.default,
});

Unfortunately this won't work with node-fetch v3 due to an issue in node-fetch, whereby the global namespace is polluted with the "dom" type definitions: node-fetch/node-fetch#1285.

As a workaround you use a type assertion:

import { createApi } from 'unsplash-js';
import * as nodeFetch from 'node-fetch'

const unsplash = createApi({
  accessKey: 'MY_ACCESS_KEY',
  fetch: nodeFetch.default as unknown as typeof fetch,
});

URL

This library also depends on the WHATWG URL interface:

• MDN docs for browsers.
• NodeJS docs.

Note: Make sure to polyfill this interface if targetting older environments that do not implement it (i.e. Internet Explorer or Node < v8).

Note 2: For Node, the URL interface exists under require('url').URL since v8 but was only added to the global scope as of v10.0.0. If you are using a version between v8.0.0 and v10.0.0, you need to add the class to the global scope before using unsplash-js:

URL = require('url').URL;

Usage

Creating an instance

To create an instance, simply provide an Object with your accessKey.

NOTE: If you're using unsplash-js publicly in the browser, you'll need to proxy your requests through your server to sign the requests with the Access Key to abide by the API Guideline to keep keys confidential. We provide an apiUrl property that lets you do so. You should only need to provide one of those two values in any given scenario.

import { createApi } from 'unsplash-js';

// on your node server
const serverApi = createApi({
  accessKey: 'MY_ACCESS_KEY',
  //...other fetch options
});

// in the browser
const browserApi = createApi({
  apiUrl: 'https://mywebsite.com/unsplash-proxy',
  //...other fetch options
});

Making a request

Arguments

All methods have 2 arguments: the first one includes all of the specific parameters for that particular endpoint, while the second allows you to pass down any additional options that you want to provide to fetch. On top of that, the createApi constructor can receive fetch options to be added to every request:

const unsplash = createApi({
  accessKey: 'MY_ACCESS_KEY',
  // `fetch` options to be sent with every request
  headers: { 'X-Custom-Header': 'foo' },
});

unsplash.photos.get(
  { photoId: '123' },
  // `fetch` options to be sent only with _this_ request
  { headers: { 'X-Custom-Header-2': 'bar' } },
);

Example: if you would like to implement request abortion, you can do so like this:

const unsplash = createApi({
  accessKey: 'MY_ACCESS_KEY',
});

const controller = new AbortController();
const signal = controller.signal;

unsplash.photos.get({ photoId: '123' }, { signal }).catch(err => {
  if (err.name === 'AbortError') {
    console.log('Fetch aborted');
  }
});

controller.abort();

Response

When making a request using this SDK, there are 2 possible outcomes to a request.

• Error: we return a result.errors object containing an array of strings (each one representing one error) and result.source describing the origin of the error (e.g. api, decoding). Typically, you will only have on item in this array.
• Success: we return a result.response object containing the data.
  • If the request is for a page from a feed, then result.response.results will contain the JSON received from API, and result.response.total will contain the X-total header value indicating the total number of items in the feed (not just the page you asked for).
  • If the request is something other than a feed, then result.response will contain the JSON received from API

You can inspect which one you have by reading the result.type value or checking the contents of result.errors/result.success

const unsplash = createApi({ accessKey: 'MY_ACCESS_KEY' });

// non-feed example
unsplash.photos.get({ photoId: 'foo' }).then(result => {
  if (result.errors) {
    // handle error here
    console.log('error occurred: ', result.errors[0]);
  } else {
    // handle success here
    const photo = result.response;
    console.log(photo);
  }
});

// feed example
unsplash.users.getPhotos({ username: 'foo' }).then(result => {
  if (result.errors) {
    // handle error here
    console.log('error occurred: ', result.errors[0]);
  } else {
    const feed = result.response;

    // extract total and results array from response
    const { total, results } = feed;

    // handle success here
    console.log(`received ${results.length} photos out of ${total}`);
    console.log('first photo: ', results[0]);
  }
});

NOTE: you can also pattern-match on result.type whose value will be error or success:

unsplash.photos.get({ photoId: 'foo' }).then(result => {
  switch (result.type) {
    case 'error':
      console.log('error occurred: ', result.errors[0]);
    case 'success':
      const photo = result.response;
      console.log(photo);
  }
});

Types

The types for this library target TypeScript v3.7 and above.

This library is written in TypeScript. This means that even if you are writing plain JavaScript, you can still get useful and accurate type information. We highly recommend that you setup your environment (using an IDE such as VSCode) to fully benefit from this information:

Function arguments

Response Types

Instance Methods

NOTE: All of the method arguments described here are in the first parameter. See the arguments section for more information.

• Search
• Photos
• Users
• Collections
• Topics

---

search.getPhotos(arguments, additionalFetchOptions)

Get a list of photos matching the query. See endpoint docs 🚀

Arguments

Argument	Type	Optional/Required	Default
query	string	Required
page	number	Optional	1
perPage	number	Optional	10
orientation	string	Optional
contentFilter	string	Optional	"low"
color	string	Optional
orderBy	string	Optional	"relevant"
collectionIds	array	Optional
lang	string	Optional	"en"

Example

unsplash.search.getPhotos({
  query: 'cat',
  page: 1,
  perPage: 10,
  color: 'green',
  orientation: 'portrait',
});

search.getUsers(arguments, additionalFetchOptions)

Get a list of users matching the query. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required	Default
query	string	Required
page	number	Optional	1
perPage	number	Optional	10

Example

unsplash.search.getUsers({
  query: 'cat',
  page: 1,
  perPage: 10,
});

search.getCollections(arguments, additionalFetchOptions)

Get a list of collections matching the query. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required	Default
query	string	Required
page	number	Optional	1
perPage	number	Optional	10

Example

unsplash.search.getCollections({
  query: 'cat',
  page: 1,
  perPage: 10,
});

---

photos.list(arguments, additionalFetchOptions)

Get a single page from the list of all photos. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required	Default
page	number	Optional	1
perPage	number	Optional	10
orderBy	string	Optional	latest

Example

unsplash.photos.list({});
unsplash.photos.list({ page: 2, perPage: 15 });

---

photos.get(arguments, additionalFetchOptions)

Retrieve a single photo. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required
photoId	string	Required

Example

unsplash.photos.get({ photoId: 'mtNweauBsMQ' });

---

photos.getStats(arguments, additionalFetchOptions)

Retrieve a single photo's stats. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required
photoId	string	Required

Example

unsplash.photos.getStats({ photoId: 'mtNweauBsMQ' });

---

photos.getRandom(arguments, additionalFetchOptions)

Retrieve a single random photo, given optional filters. See endpoint docs 🚀. Note: if you provide a value for count greater than 1, you will receive an array of photos. Otherwise, you will receive a single photo object.

Arguments

Argument	Type	Opt/Required
query	string	Optional
username	string	Optional
featured	boolean	Optional
collectionIds	Array	Optional
topicIds	Array	Optional
count	string	Optional

Example

unsplash.photos.getRandom({});
unsplash.photos.getRandom({
  count: 10,
});
unsplash.photos.getRandom({
  collectionIds: ['abc123'],
  topicIds: ['def456'],
  featured: true,
  username: 'naoufal',
  query: 'dog',
  count: 1,
});

photos.trackDownload(arguments, additionalFetchOptions)

Trigger a download of a photo as per the download tracking requirement of API Guidelines. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required
downloadLocation	string	Required

Example

unsplash.photos.get({ photoId: 'mtNweauBsMQ' }).then(result => {
  if (result.type === 'success') {
    const photo = result.response;
    unsplash.photos.trackDownload({
      downloadLocation: photo.links.download_location,
    });
  }
});

// or if working with an array of photos
unsplash.search.photos({ query: 'dogs' }).then(result => {
  if (result.type === 'success') {
    const firstPhoto = result.response.results[0];
    unsplash.photos.trackDownload({
      downloadLocation: firstPhoto.links.download_location,
    });
  }
});

---

users.get(username)

Retrieve public details on a given user. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required
username	string	Required

Example

unsplash.users.get({ username: 'naoufal' });

---

users.getPhotos(arguments, additionalFetchOptions)

Get a list of photos uploaded by a user. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required	Notes	Default
username	string	Required
page	number	Optional		1
perPage	number	Optional		10
orderBy	string	Optional	latest, oldest	latest
stats	boolean	Optional		false
orientation	string	Optional	landscape, portrait, squarish

Example

unsplash.users.getPhotos({
  username: 'naoufal',
  page: 1,
  perPage: 10,
  orderBy: 'latest',
  orientation: 'landscape',
});

---

users.getLikes(arguments, additionalFetchOptions)

Get a list of photos liked by a user. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required	Notes	Default
username	string	Required
page	number	Optional		1
perPage	number	Optional		10
orderBy	string	Optional	latest, oldest	latest
orientation	string	Optional	landscape, portrait, squarish

Example

unsplash.users.getLikes({
  username: 'naoufal',
  page: 1,
  perPage: 10,
  orderBy: 'latest',
  orientation: 'landscape',
});

---

users.getCollections(arguments, additionalFetchOptions)

Get a list of collections created by the user. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required	Notes	Default
username	string	Required
page	number	Optional		1
perPage	number	Optional		10

Example

unsplash.users.getCollections({
  username: 'naoufal',
  page: 2,
  perPage: 15,
});

---

collections.list(arguments, additionalFetchOptions)

Get a single page from the list of all collections. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required	Notes	Default
page	number	Optional		1
perPage	number	Optional		10

Example

unsplash.collections.list({ page: 1, perPage: 10 });

---

collections.get(arguments, additionalFetchOptions)

Retrieve a single collection. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required
collectionId	string	Required

Example

unsplash.collections.get({ collectionId: 'abc123' });

---

collections.getPhotos(arguments, additionalFetchOptions)

Retrieve a collection’s photos. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required	Notes	Default
collectionId	string	Required
page	number	Optional		1
perPage	number	Optional		10
orderBy	string	Optional	latest, oldest	latest
orientation	string	Optional	landscape, portrait, squarish

Example

unsplash.collections.getPhotos({ collectionId: 'abc123' });

---

collections.getRelated(arguments, additionalFetchOptions)

Lists collections related to the provided one. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required
collectionId	string	Required

Example

unsplash.collections.getRelated({ collectionId: 'abc123' });

---

Topics

topics.list(arguments, additionalFetchOptions)

Get a single page from the list of all topics. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required	Notes	Default
topicIdsOrSlugs	Array	Optional		[]
page	number	Optional		1
perPage	number	Optional		10
orderBy	string	Optional	latest, oldest, featured, position	position

Example

unsplash.topics.list({
  page: 1,
  perPage: 10,
  topicIdsOrSlugs: ['fashion', 'architecture', '6sMVjTLSkeQ'],
});

---

topics.get(arguments, additionalFetchOptions)

Retrieve a single topic. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required
topicIdOrSlug	string	Required

Example

unsplash.topics.get({ topicIdOrSlug: 'abc123' });

---

topics.getPhotos(arguments, additionalFetchOptions)

Retrieve a topic’s photos. See endpoint docs 🚀

Arguments

Argument	Type	Opt/Required	Notes	Default
topicIdOrSlug	string	Required
page	number	Optional		1
perPage	number	Optional		10
orderBy	string	Optional	latest, oldest, popular	latest
orientation	string	Optional	landscape, portrait, squarish

Example

unsplash.topics.getPhotos({ topicIdOrSlug: 'abc123' });