filestack-js

filestack-js

Official browser client to the Filestack API's. Available via NPM and Filestack CDN.

Filestack documentation can be found here: https://filestack.com/docs/

This library is shipped as both a UMD module and a ES2015 module for modern Javascript bundlers. There is also a separate minified UMD module available on the Filestack CDN.

Installation

npm install --save filestack-js

Usage

Via ES6 modules:

import filestack from 'filestack-js';

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

Via script tag:

(Note http://static.filestackapi.com/v3/filestack.js will always point to the latest version. This is not recommended for production.)

<script src="http://static.filestackapi.com/v3/filestack-0.6.3.js"></script>
<script>
  const apikey = 'abc';
  const client = filestack.init(apikey);
</script>

Polyfills

Note: As of 0.7.0 filestack-js is not shipping with polyfills.

This library requires an environment that implements the Promise object spec.

If you need to use filestack-js in IE11 you will need to add a Promise polyfill to your page or application.

Polyfills we recommend (choose one):

• https://github.com/taylorhakes/promise-polyfill
• https://github.com/stefanpenner/es6-promise

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

Opens the picker UI widget. The code is loaded dynamically from the Filestack CDN.

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
    • imagesearch - Default
    • facebook - Default
    • instagram - Default
    • googledrive - Default
    • dropbox - Default
    • webcam - Desktop only. Please use local_file_system for mobile. Not currently supported in Safari or IE.
    • evernote
    • flickr
    • box
    • github
    • gmail
    • picasa
    • onedrive
    • clouddrive
  • .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
  • .preferLinkOverStore boolean = false - For cloud sources whether to link or store files.
  • .lang string = "en" - Sets locale. Accepts: da, de, en, es, fr, 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.
  • .transformations object - Specify transforms for images passed to the transformations UI.
    • .crop boolean | object = true - Enable crop.
      • .aspectRatio number - Maintain aspect ratio for crop selection. (e.g. 16/9 or 4/3)
      • .circle boolean = true - Enable circle crop. Disabled if aspectRatio is defined and not 1.
    • .minDimensions array - Minimum dimensions for picked image. Image will be upscaled if smaller. (e.g. [200, 300])
    • .maxDimensions array - Maximum dimensions for picked image. Image will be downscaled if smaller. (e.g. [200, 300])
    • .filters Array.<string> - Enable image filters. Pick from: sepia, monochrome. All enabled by default.
  • .storeTo object - Options for file storage.
    • .location string = "s3" - 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.

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

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 - must be a valid File or Blob.
• [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.

---

© 2017 Filestack.