filestack-js

Official web SDK for the Filestack API and content management system.

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What's in the box?

• A wrapper for the Filestack REST API.
• A multi-part uploader powered by the Filestack CIN.
• An interface to the Filestack Transformation Engine for image processing.
• The Filestack Picker - an upload widget for the web that integrates over a dozen cloud providers.

Installation

npm install --save filestack-js

Usage

ES module:

import filestack from 'filestack-js';

const apikey = 'abc';
const client = filestack.init(apikey);

Script:

<script src="//static.filestackapi.com/v3/filestack-0.7.0.js"></script>
<script>
  const apikey = 'abc';
  const client = filestack.init(apikey);
</script>

Promises

This library requires an environment that implements the Promise object spec. If you target IE11 you will need to add a Promise polyfill to your page or application.

Polyfills we recommend:

Module (for bundling):

• https://github.com/taylorhakes/promise-polyfill

Script (for script tag):

• https://cdn.polyfill.io/v2/polyfill.min.js?features=Promise

Known Issues

Currently the picker requires support for third-party cookies. End users will need to accept third-party cookies to authenticate with cloud sources. We are actively working to change this.

API Reference

• filestack
  • init(apikey, [security]) ⇒ object
    • .getSecurity() ⇒ object
    • .setSecurity(security) ⇒ object
    • .metadata(handle, [options]) ⇒ Promise
    • .pick([options]) ⇒ Promise
    • .remove(handle) ⇒ Promise
    • .retrieve(handle, [options]) ⇒ Promise
    • .storeURL(url, [options]) ⇒ Promise
    • .transform(url, options) ⇒ string
    • .upload(file, [uploadOptions], [storeOptions]) ⇒ Promise
  • version ⇒ string

init(apikey, [security]) ⇒ object

Initializes the client.

Returns: object - Object containing client methods.
Params

• apikey string - Filestack API key. Get a free key here.
• [security] object - Read about security policies.
  • .policy string - Filestack security policy encoded in base64.
  • .signature string - HMAC-SHA256 signature for the security policy.

version ⇒ string

Gets current version.

Example

import filestack from 'filestack-js';
console.log(filestack.version);

client.getSecurity() ⇒ object

Get current security parameters.

Returns: object - Object containing current security parameters

client.setSecurity(security) ⇒ object

Set security parameters -- useful for changing policy on instantiated client.

Note: Does not currently work with pick. You will need to init a new client if you want to propagate new security parameters to the picker.

Returns: object - Object containing current session parameters
Params

• security object - Read about security policies.
  • .policy string - Filestack security policy encoded in base64.
  • .signature string - HMAC-SHA256 signature for the security policy.

Example

client.setSecurity({ policy: 'policy', signature: 'signature' });

client.pick([options]) ⇒ Promise

Attaches and opens the picker UI in the current DOM.

Resolve: object - Object contains keys filesUploaded and filesFailed which are both arrays of file metadata.
Params

• [options] object
  • .fromSources Array.<string> - Valid sources are:
    • local_file_system - Default
    • url - Default
    • imagesearch - Default
    • facebook - Default
    • instagram - Default
    • googledrive - Default
    • dropbox - Default
    • webcam - Desktop only. Not currently supported in Safari and IE.
    • evernote
    • flickr
    • box
    • github
    • gmail
    • picasa
    • onedrive
    • clouddrive
    • customsource - Configure this in your Filestack Dev Portal.
  • .accept string | Array.<string> - Restrict file types that are allowed to be picked. Formats accepted:
    • .pdf <- any file extension
    • image/jpeg <- any mime type commonly known by browsers
    • image/* <- accept all types of images
    • video/* <- accept all types of video files
    • audio/* <- accept all types of audio files
    • application/* <- accept all types of application files
    • text/* <- accept all types of text files
  • .customSourceContainer string - Set the default container for your custom source.
  • .customSourcePath string - Set the default path for your custom source container.
  • .preferLinkOverStore boolean = false - For cloud sources whether to link or store files.
  • .lang string = "en" - Sets locale. Accepts: da, de, en, es, fr, he, it, ja, nl, pl, pt, ru, zh.
  • .minFiles number = 1 - Minimum number of files required to start uploading.
  • .maxFiles number = 1 - Maximum number of files allowed to upload.
  • .maxSize number - Restrict selected files to a maximum number of bytes. (e.g. 10 * 1024 * 1024 for 1MB limit).
  • .startUploadingWhenMaxFilesReached boolean = false - Whether to start uploading automatically when maxFiles is hit.
  • .hideWhenUploading boolean = false - Hide the picker UI once uploading begins.
  • .uploadInBackground boolean = true - Start uploading immediately on file selection.
  • .disableTransformer boolean = false - When true removes ability to edit images.
  • .disableThumbnails boolean = false - Disables local image thumbnail previews in the summary screen.
  • .transformations object - Specify options for images passed to the crop UI.
    • .crop boolean | object = true - Enable crop.
      • .aspectRatio number - Maintain aspect ratio for crop selection. (e.g. 16/9, 800/600).
      • .force boolean - Force all images to be cropped before uploading.
    • .circle boolean = true - Enable circle crop. Disabled if crop.aspectRatio is defined and not 1. Converts to PNG.
    • .rotate boolean = true - Enable image rotation.
  • .imageDim Array.<number> - Specify image dimensions. e.g. [800, 600]. Only for JPEG, PNG, and BMP files. Local and cropped images will be resized (upscaled or downscaled) to the specified dimensions before uploading. The original height to width ratio is maintained. To resize all images based on the width, set [width, null], e.g. [800, null]. For the height set [null, height], e.g. [null, 600].
  • .imageMax Array.<number> - Specify maximum image dimensions. e.g. [800, 600]. Only for JPEG, PNG, and BMP files. Images bigger than the specified dimensions will be resized to the maximum size while maintaining the original aspect ratio. The output will not be exactly 800x600 unless the imageMax matches the aspect ratio of the original image.
  • .imageMin Array.<number> - Specify minimum image dimensions. e.g. [800, 600]. Only for JPEG, PNG, and BMP files. Images smaller than the specified dimensions will be upscaled to the minimum size while maintaining the original aspect ratio. The output will not be exactly 800x600 unless the imageMin matches the aspect ratio of the original image.
  • .storeTo object - Options for file storage.
    • .location string - One of s3, gcs, rackspace, azure, dropbox.
    • .region string - Valid S3 region for the selected S3 bucket. S3 only.
    • .container string
    • .path string
    • .access string - One of public or private.
  • .onFileSelected onFileSelected - Called whenever user selects a file.
  • .onFileUploadStarted onFileUploadStarted - Called when a file begins uploading.
  • .onFileUploadProgress onFileUploadProgress - Called during multi-part upload progress events. Local files only.
  • .onFileUploadFinished onFileUploadFinished - Called when a file is done uploading.
  • .onFileUploadFailed onFileUploadFailed - Called when uploading a file fails.
  • .onClose function - Called when the UI is exited.
  • .rejectOnCancel boolean - Reject the returned Promise when a user cancels the pick. The Promise will reject with a list of all files currently selected.

Example

client.pick({
  maxFiles: 20,
  fromSources: ['local_file_system', 'facebook'],
}).then(res => console.log(res));

onFileSelected : function

Params

• file object - File metadata.

Example

// Using to veto file selection
// If you throw any error in this function it will reject the file selection.
// The error message will be displayed to the user as an alert.
onFileSelected(file) {
  if (file.size > 1000 * 1000) {
    throw new Error('File too big, select something smaller than 1MB');
  }
}

// Using to change selected file name
onFileSelected(file) {
  file.name = 'foo';
  // It's important to return altered file by the end of this function.
  return file;
}

onFileUploadStarted : function

Params

• file object - File metadata.

onFileUploadFinished : function

Params

• file object - File metadata.

onFileUploadFailed : function

Params

• file object - File metadata.
• error error - Error instance for this upload.

onFileUploadProgress : function

Params

• file object - File metadata.
• event object - Progress event.
  • .totalPercent number - Percent of file uploaded.
  • .totalBytes number - Total number of bytes uploaded for this file.

client.storeURL(url, [options]) ⇒ Promise

Interface to the Filestack Store API. Used for storing from a URL.

Resolve: object - Metadata of stored file.
Reject: error - A Superagent error object.
Params

• url string - Valid URL to a file.
• [options] object
  • .filename string
  • .location string = "s3" - One of s3, gcs, rackspace, azure, dropbox.
  • .mimetype string
  • .path string
  • .container string
  • .region string - Valid S3 region for the selected container (S3 only).
  • .access string - One of public or private.

Example

client
  .storeURL('https://d1wtqaffaaj63z.cloudfront.net/images/NY_199_E_of_Hammertown_2014.jpg')
  .then(res => console.log(res));

client.retrieve(handle, [options]) ⇒ Promise

Interface to the Filestack Retrieve API. Used for accessing files via Filestack handles.

Resolve: object - Metadata of stored file or stored file, depending on metadata / head option.
Reject: error - A Superagent error object.
Params

• handle string - Valid Filestack handle.
• [options] object
  • .metadata boolean - return json of file metadata
  • .head boolean - perform a 'head' request instead of a 'get'
  • .dl boolean - X-File-Name will be returned
  • .extension string - add extension to handle

Example

client
  .retrieve('DCL5K46FS3OIxb5iuKby')
  .then((blob) => {
     var urlCreator = window.URL || window.webkitURL;
     var imageUrl = urlCreator.createObjectURL(blob);
     document.querySelector('#myImage').src = imageUrl;
  })
  .catch((err) => {
     console.log(err);
  }));

client.remove(handle) ⇒ Promise

Interface to the Filestack Remove API. Used for removing files, requires security to be enabled.

Resolve: object - Result of remove.
Reject: error - A Superagent error object.
Params

• handle string - Valid Filestack handle.

Example

client
  .remove('DCL5K46FS3OIxb5iuKby')
  .then((res) => {
    console.log(res);
  })
  .catch((err) => {
    console.log(err);
  }));

client.metadata(handle, [options]) ⇒ Promise

Interface to the Filestack Metadata API. Used for retrieving detailed data of stored files.

Resolve: object - Result of metadata.
Reject: error - A Superagent error object.
Params

• handle string - Valid Filestack handle.
• [options] object
  • .size boolean
  • .mimetype boolean
  • .filename boolean
  • .width boolean
  • .height boolean
  • .uploaded boolean
  • .writeable boolean
  • .cloud boolean
  • .sourceUrl boolean
  • .md1 boolean
  • .sha1 boolean
  • .sha224 boolean
  • .sha256 boolean
  • .sha384 boolean
  • .sha512 boolean
  • .location boolean
  • .path boolean
  • .container boolean
  • .exif boolean

Example

client
  .metadata('DCL5K46FS3OIxb5iuKby')
  .then((res) => {
    console.log(res);
  })
  .catch((err) => {
    console.log(err);
  }));

client.transform(url, options) ⇒ string

Interface to the Filestack transformation engine.

Returns: string - A new URL that points to the transformed resource.
Params

• url string - Valid URL to an image.
• options transformOptions - Transformations are applied in the order specified by this object.

Example

const transformedUrl = client.transform(url, {
  crop: {
    dim: {
      x: 0,
      y: 50,
      width: 300,
      height: 300,
    },
  },
  vignette: {
    blurmode: 'gaussian',
    amount: 50,
  },
  flip: true,
};

// optionally store the new URL
client.storeURL(transformedUrl).then(res => console.log(res));

transformOptions : object

Params

• crop object - Crop options.
  • .dim object - Crop dimensions.
    • .x number
    • .y number
    • .width number
    • .height number
• resize object - Resize options. At least one option is required.
  • .width number
  • .height number
  • .fit string - One of clip, crop, scale, max.
  • .align string - One of center, top, bottom, left, right, faces, or align pair like ['top', 'left'].
• rotate object - Rotate options. At least one option is required.
  • .deg number | string - Can be number in range 0-359 or exif.
  • .exif boolean
  • .background string
• flip boolean - Flip image
• flop boolean - Flop image
• roundedCorners object - Rounded corners options.
  • .radius number | string - Can be number in range 1-10000 or max.
  • .blur number
  • .background string
• vignette object - Vignette options.
  • .amount number
  • .blurmode string - One of linear or gaussian.
  • .background string
• polaroid object - Polaroid options.
  • .color string
  • .rotate number
  • .background string
• tornEdges object - Torn edges options.
  • .spread Array.<number> - Range format [10, 50].
  • .background string
• shadow object - Shadow options.
  • .blur number
  • .opacity number
  • .vector Array.<number> - Range format [25, 25].
  • .color string
  • .background string
• circle object - Circle options.
  • .background string
• border object - Border options.
  • .width number
  • .color number
  • .background number
• monochrome boolean - Monochrome.
• sepia object - Sepia.
  • .tone number
• output object - Output options.
  • .format string
  • .background string
  • .page Array.<number> - Range format [1, 10000].
  • .density Array.<number> - Range format [1, 500].
  • .compress boolean
  • .quality number | string - Can be number in range 1-100 or input.
  • .input boolean
  • .strip boolean
  • .colorspace string - One of rgb, cmyk, or input.
  • .secure boolean
  • .docinfo boolean
  • .pageformat string - One of a3, a4, a5, b4, b5, letter, legal, or tabloid.
  • .pageorientation string - One of landscape or portrait.

client.upload(file, [uploadOptions], [storeOptions], [token]) ⇒ Promise

Initiates a direct-to-S3 multi-part upload. Uses Filestack S3 by default. Read how to configure your own S3 buckets here.

Resolve: object - Metadata of uploaded file.
Reject: error - An Error object depending on where the flow halted.
Params

• file Blob | string - must be a valid File, Blob, or base64 encoded string.
• [uploadOptions] object
  • [.partSize] number = 6 * 1024 * 1024 - Size of each uploaded part.
  • [.concurrency] number = 5 - Max number of concurrent parts uploading.
  • [.retry] number = 10 - Number of times to retry a failed part of the flow.
  • [.progressInterval] number = 1000 - Frequency (in milliseconds) at which progress events are dispatched.
  • [.onProgress] progressCallback - Called regularly to give progress updates.
  • [.onRetry] retryCallback - Called when a retry is initiated.
• [storeOptions] object - Configure where the file is stored.
  • [.filename] string - Define a custom filename for the Blob/File being uploaded.
  • [.location] string = "s3" - Valid options are: s3, gcs, dropbox, azure, rackspace.
  • [.region] string - Valid S3 region for the selected container (S3 only).
  • [.container] string - Name of the storage container.
  • [.path] string - Path where the file will be stored. A trailing slash will put the file in that folder path.
  • [.access] string - Valid options are private or public.
• [token] object - A control token that can be used to call cancel(), pause(), and resume().

Example

const token = {};
const onRetry = (obj) => {
  console.log(`Retrying ${obj.location} for ${obj.filename}. Attempt ${obj.attempt} of 10.`);
};

client.upload(file, { onRetry }, { filename: 'foobar.jpg' }, token)
  .then(res => console.log(res));

token.pause();  // Pause flow
token.resume(); // Resume flow
token.cancel(); // Cancel flow (rejects)

progressCallback : function

Params

• event object - Progress event.
  • .totalPercent number - Percent of total file upload progress.
  • .totalBytes number - Total number of bytes uploaded thus far across all parts.

retryCallback : function

Params

• retry object - Retry information object.
  • .location string - Which part of the flow is being retried.
  • .parts Array.<object> - Array of current parts at this point in the flow.
  • .filename string - Name of the file being retried.
  • .attempt number - Current attempt.

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© 2017 Filestack.