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https://github.com/uploadcare/uploadcare-ruby

Ruby API client that handles uploads and further operations with files by wrapping Uploadcare Upload and REST APIs.
https://github.com/uploadcare/uploadcare-ruby

api client file-upload image-processing image-recognition image-upload processing ruby sdk upload uploadcare uploader

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Ruby API client that handles uploads and further operations with files by wrapping Uploadcare Upload and REST APIs.

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README

        

# Ruby integration for Uploadcare

![license](https://img.shields.io/badge/license-MIT-brightgreen.svg)
[![Build Status][actions-img]][actions-badge]
[![Uploadcare stack on StackShare][stack-img]][stack]

[actions-badge]: https://github.com/uploadcare/uploadcare-ruby/actions/workflows/ruby.yml
[actions-img]: https://github.com/uploadcare/uploadcare-ruby/actions/workflows/ruby.yml/badge.svg
[coverals-img]: https://coveralls.io/repos/github/uploadcare/uploadcare-ruby/badge.svg?branch=main
[coverals]: https://coveralls.io/github/uploadcare/uploadcare-ruby?branch=main
[stack-img]: https://img.shields.io/badge/tech-stack-0690fa.svg?style=flat
[stack]: https://stackshare.io/uploadcare/stacks/

Uploadcare Ruby integration handles uploads and further operations with files by
wrapping Upload and REST APIs.

* [Installation](#installation)
* [Usage](#usage)
* [Uploading files](#uploading-files)
* [Uploading and storing a single file](#uploading-and-storing-a-single-file)
* [Multiple ways to upload files](#multiple-ways-to-upload-files)
* [Uploading options](#uploading-options)
* [File management](#file-management)
* [File](#file)
* [FileList](#filelist)
* [Pagination](#pagination)
* [Custom File Metadata](#custom-file-metadata)
* [Group](#group)
* [GroupList](#grouplist)
* [Webhook](#webhook)
* [Add-Ons](#add-ons)
* [Project](#project)
* [Conversion](#conversion)
* [Useful links](#useful-links)

## Requirements
* ruby 3.0+

## Compatibility

Note that `uploadcare-ruby` **3.x** is not backward compatible with
**[2.x](https://github.com/uploadcare/uploadcare-ruby/tree/v2.x)**.

## Installation

Add this line to your application's Gemfile:

```ruby
gem "uploadcare-ruby"
```

And then execute:

$ bundle

If you use `api_struct` gem in your project, replace it with `uploadcare-api_struct`:
```ruby
gem 'uploadcare-api_struct'
```
and run `bundle install`

If already not, create your project in [Uploadcare dashboard](https://app.uploadcare.com/?utm_source=github&utm_medium=referral&utm_campaign=uploadcare-ruby) and copy
its [API keys](https://app.uploadcare.com/projects/-/api-keys/) from there.

Set your Uploadcare keys in config file or through environment variables:
```bash
export UPLOADCARE_PUBLIC_KEY=your_public_key
export UPLOADCARE_SECRET_KEY=your_private_key
```

Or configure your app yourself if you are using different way of storing keys.
Gem configuration is available in `Uploadcare.configuration`. Full list of
settings can be seen in [`lib/uploadcare.rb`](lib/uploadcare.rb)

```ruby
# your_config_initializer_file.rb
Uploadcare.config.public_key = "your_public_key"
Uploadcare.config.secret_key = "your_private_key"
```

## Usage

This section contains practical usage examples. Please note, everything that
follows gets way more clear once you've looked through our
[docs](https://uploadcare.com/docs/?utm_source=github&utm_medium=referral&utm_campaign=uploadcare-ruby)
and [Upload](https://uploadcare.com/api-refs/upload-api/) and [REST](https://uploadcare.com/api-refs/rest-api/) API refs.

You can also find an example project [here](https://github.com/uploadcare/uploadcare-rails-example).

### Uploading files
#### Uploading and storing a single file

Using Uploadcare is simple, and here are the basics of handling files.

```ruby
@file_to_upload = File.open("your-file.png")

@uc_file = Uploadcare::Uploader.upload(@file_to_upload, store: "auto")

@uc_file.uuid
# => "dc99200d-9bd6-4b43-bfa9-aa7bfaefca40"

# URL for the file, can be used with your website or app right away
@uc_file.original_file_url
# => "https://ucarecdn.com/dc99200d-9bd6-4b43-bfa9-aa7bfaefca40/your-file.png"
```

The `store` option can have these possible values:
- `true`: mark the uploaded file as stored.
- `false`: do not mark the uploaded file as stored and remove it after 24 hours.
- `"auto"`: defers the choice of storage behavior to the [auto-store setting](https://app.uploadcare.com/projects/-/settings/#storage) for your Uploadcare project. This is the default behavior.

Your might then want to store or delete the uploaded file.

```ruby
# that's how you store a file, if you have uploaded the file using store: false and changed your mind later
@uc_file.store
# => # # "c6e31082-6bdc-4cb3-bef5-14dd10574d72"
```

After the request for uploading-from-URL is sent, you can check the progress of the upload by sending the `get_upload_from_url_status` request:

```ruby
Uploadcare::Uploader.get_upload_from_url_status("1251ee66-3631-4416-a2fb-96ba59f5a515")
# => Success({:size=>453543, :total=>453543, :done=>453543, :uuid=>"5c51a7fe-e45d-42a2-ba5e-79957ff4bdab", :file_id=>"5c51a7fe-e45d-42a2-ba5e-79957ff4bdab", :original_filename=>"2250", :is_image=>true, :is_stored=>false, :image_info=>{:dpi=>[96, 96], :width=>2250, :format=>"JPEG", :height=>2250, :sequence=>false, :color_mode=>"RGB", :orientation=>nil, :geo_location=>nil, :datetime_original=>nil}, :video_info=>nil, :content_info=>{:mime=>{:mime=>"image/jpeg", :type=>"image", :subtype=>"jpeg"}, :image=>{:dpi=>[96, 96], :width=>2250, :format=>"JPEG", :height=>2250, :sequence=>false, :color_mode=>"RGB", :orientation=>nil, :geo_location=>nil, :datetime_original=>nil}}, :is_ready=>true, :filename=>"2250", :mime_type=>"image/jpeg", :metadata=>{}, :status=>"success"})
```

In case of the `async` option is disabled, uploadcare-ruby tries to request the upload status several times (depending on the `max_request_tries` config param) and then returns uploaded file attributes.

```ruby
# multipart upload - can be useful for files bigger than 10 mb
Uploadcare::Uploader.multipart_upload(File.open("big_file.bin"), store: true)
```

For the multipart upload you can pass a block to add some additional logic after each file chunk is uploaded.
For example to track file uploading progress you can do something like this:

```ruby
file = File.open("big_file.bin")
progress = 0
Uploadcare::Uploader.multipart_upload(file, store: true) do |options|
progress += (100.0 / options[:links_count])
puts "PROGRESS = #{progress}"
end
```
Output of the code above looks like:
```console
PROGRESS = 4.545454545454546
PROGRESS = 9.090909090909092
PROGRESS = 13.636363636363637
...
```
Options available in a block:
- **:chunk_size** - size of each chunk in bytes;
- **:object** - file object which is going to be uploaded;
- **:offset** - offset from the beginning of a File object in bytes;
- **:link_id** - index of a link provided by Uploadcare API. Might be treated as index of a chunk;
- **:links** - array of links for uploading file's chunks;
- **:links_count** - count of the array of links.

#### Uploading options

You can override [auto-store setting](https://app.uploadcare.com/projects/-/settings/#storage) from your Uploadcare project for each upload request:

```ruby
@api.upload(files, store: true) # mark the uploaded file as stored.
@api.upload(files, store: false) # do not mark the uploaded file as stored and remove it after 24 hours.
@api.upload_from_url(url, store: "auto") # defers the choice of storage behavior to the auto-store setting.
```

You can upload file with custom metadata, for example `subsystem` and `pet`:

```ruby
@api.upload(files, metadata: { subsystem: 'my_subsystem', pet: 'cat' } )
@api.upload_from_url(url, metadata: { subsystem: 'my_subsystem', pet: 'cat' })
```

### File management

Entities are representations of objects in Uploadcare cloud.

#### File

File entity contains its metadata. It also supports `include` param to include additional fields to the file object, such as: "appdata".

```ruby
@file = Uploadcare::File.file("FILE_UUID", include: "appdata")
{
"datetime_removed"=>nil,
"datetime_stored"=>"2018-11-26T12:49:10.477888Z",
"datetime_uploaded"=>"2018-11-26T12:49:09.945335Z",
"is_image"=>true,
"is_ready"=>true,
"mime_type"=>"image/jpeg",
"original_file_url"=>"https://ucarecdn.com/FILE_UUID/pineapple.jpg",
"original_filename"=>"pineapple.jpg",
"size"=>642,
"url"=>"https://api.uploadcare.com/files/FILE_UUID/",
"uuid"=>"FILE_UUID",
"variations"=>nil,
"content_info"=>{
"mime"=>{
"mime"=>"image/jpeg",
"type"=>"image",
"subtype"=>"jpeg"
},
"image"=>{
"format"=>"JPEG",
"width"=>500,
"height"=>500,
"sequence"=>false,
"orientation"=>6,
"geo_location"=>{
"latitude"=>55.62013611111111,
"longitude"=>37.66299166666666
},
"datetime_original"=>"2018-08-20T08:59:50",
"dpi"=>[72, 72]
}
},
"metadata"=>{
"subsystem"=>"uploader",
"pet"=>"cat"
},
"appdata"=>{
"uc_clamav_virus_scan"=>{
"data"=>{
"infected"=>true,
"infected_with"=>"Win.Test.EICAR_HDB-1"
},
"version"=>"0.104.2",
"datetime_created"=>"2021-09-21T11:24:33.159663Z",
"datetime_updated"=>"2021-09-21T11:24:33.159663Z"
},
"remove_bg"=>{
"data"=>{
"foreground_type"=>"person"
},
"version"=>"1.0",
"datetime_created"=>"2021-07-25T12:24:33.159663Z",
"datetime_updated"=>"2021-07-25T12:24:33.159663Z"
},
"aws_rekognition_detect_labels"=>{
"data"=>{
"LabelModelVersion"=>"2.0",
"Labels"=>[
{
"Confidence"=>93.41645812988281,
"Instances"=>[],
"Name"=>"Home Decor",
"Parents"=>[]
},
{
"Confidence"=>70.75951385498047,
"Instances"=>[],
"Name"=>"Linen",
"Parents"=>[{ "Name"=>"Home Decor" }]
},
{
"Confidence"=>64.7123794555664,
"Instances"=>[],
"Name"=>"Sunlight",
"Parents"=>[]
},
{
"Confidence"=>56.264793395996094,
"Instances"=>[],
"Name"=>"Flare",
"Parents"=>[{ "Name"=>"Light" }]
},
{
"Confidence"=>50.47153854370117,
"Instances"=>[],
"Name"=>"Tree",
"Parents"=>[{ "Name"=>"Plant" }]
}
]
},
"version"=>"2016-06-27",
"datetime_created"=>"2021-09-21T11:25:31.259763Z",
"datetime_updated"=>"2021-09-21T11:27:33.359763Z"
}
}
}

@file.local_copy # copy file to local storage

@file.remote_copy # copy file to remote storage

@file.store # stores file, returns updated metadata

@file.delete #deletes file. Returns updated metadata
```

The File object is also can be converted if it is a document or a video file. Imagine, you have a document file:

```ruby
@file = Uploadcare::File.file("FILE_UUID")
```

To convert it to an another file, just do:

```ruby
@converted_file = @file.convert_document({ format: "png", page: "1" }, store: true)
# => {
# "uuid"=>""}
# ...other file info...
# }
# OR
# Failure({:"/document/-/format/png/-/page/1/"=>"the target_format is not a supported 'to' format for this source file. -> png"})
```

Same works for video files:

```ruby
@converted_file = @file.convert_video(
{
format: "ogg",
quality: "best",
cut: { start_time: "0:0:0.1", length: "end" },
size: { resize_mode: "change_ratio", width: "600", height: "400" },
thumb: { N: 1, number: 2 }
},
store: true
)
# => {
# "uuid"=>""}
# ...other file info...
# }
# OR
# Failure({:"/video/-/size/600x400/preserve_ratio/-/quality/best/-/format/ogg/-/cut/0:0:0.1/end/-/thumbs~1/2/"=>"CDN Path error: Failed to parse remainder \"/preserve_ratio\" of \"size/600x400/preserve_ratio\""})
```

More about file conversion [here](#conversion).
Metadata of deleted files is stored permanently.

#### FileList

`Uploadcare::FileList` represents the whole collection of files (or it's
subset) and provides a way to iterate through it, making pagination transparent.
FileList objects can be created using `Uploadcare::FileList.file_list` method.

```ruby
@list = Uploadcare::FileList.file_list
# Returns instance of Uploadcare::Entity::FileList

# load last page of files
@files = @list.files
# load all files
@all_files = @list.load
```

This method accepts some options to control which files should be fetched and
how they should be fetched:

- **:limit** — Controls page size. Accepts values from 1 to 1000, defaults to 100.
- **:stored** — Can be either `true` or `false`. When true, file list will contain only stored files. When false — only not stored.
- **:removed** — Can be either `true` or `false`. When true, file list will contain only removed files. When false — all except removed. Defaults to false.
- **:ordering** — Controls the order of returned files. Available values: `datetime_uploaded`, `-datetime_uploaded`. Defaults to `datetime_uploaded`. More info can be found [here](https://uploadcare.com/api-refs/rest-api/v0.7.0/#operation/filesList).
- **:from** — Specifies the starting point for a collection. Resulting collection will contain files from the given value and to the end in a direction set by an **ordering** option. When files are ordered by `datetime_updated` in any direction, accepts either a `DateTime` object or an ISO 8601 string. When files are ordered by size, accepts non-negative integers (size in bytes). More info can be found [here](https://uploadcare.com/api-refs/rest-api/v0.7.0/#operation/filesList).

Options used to create a file list can be accessed through `#options` method.
Note that, once set, they don't affect file fetching process anymore and are
stored just for your convenience. That is why they are frozen.

```ruby
options = {
limit: 10,
stored: true,
ordering: "-datetime_uploaded",
from: "2017-01-01T00:00:00",
}
@list = @api.file_list(options)
```

To simply get all associated objects:
```ruby
@list.all # => returns Array of Files
```

#### Pagination

Initially, `FileList` is a paginated collection. It can be navigated using following methods:
```ruby
@file_list = Uploadcare::FileList.file_list
# Let's assume there are 250 files in cloud. By default, UC loads 100 files. To get next 100 files, do:
@next_page = @file_list.next_page
# To get previous page:
@previous_page = @file_list.previous_page
```

Alternatively, it's possible to iterate through full list of groups or files with `each`:
```ruby
@list.each do |file|
p file.url
end
```

#### Custom File Metadata

File metadata is additional, arbitrary data, associated with uploaded file.
As an example, you could store unique file identifier from your system.

```ruby
# Get file's metadata keys and values.
Uploadcare::FileMetadata.index('FILE_UUID')

# Get the value of a single metadata key.
Uploadcare::FileMetadata.show('FILE_UUID', 'KEY')

# Update the value of a single metadata key. If the key does not exist, it will be created.
Uploadcare::FileMetadata.update('FILE_UUID', 'KEY', 'VALUE')

# Delete a file's metadata key.
Uploadcare::FileMetadata.delete('FILE_UUID', 'KEY')
```

#### Group

Groups are structures intended to organize sets of separate files. Each group is
assigned UUID. Note, group UUIDs include a `~#{files_count}` part at the end.
That's a requirement of our API.

```ruby
# group can be created from an array of Uploadcare files (UUIDs)
@file = "134dc30c-093e-4f48-a5b9-966fe9cb1d01"
@file2 = "134dc30c-093e-4f48-a5b9-966fe9cb1d02"
@files_ary = [@file, @file2]
@group = Uploadcare::Group.create @files

# group can be stored by group ID. It means that all files of a group will be stored on Uploadcare servers permanently
Uploadcare::Group.store(group.id)

# get a file group by its ID.
Uploadcare::Group.rest_info(group.id)

# group can be deleted by group ID.
Uploadcare::Group.delete(group.id)
# Note: This operation only removes the group object itself. All the files that were part of the group are left as is.
```

#### GroupList
`GroupList` is a list of `Group`

```ruby
@group_list = Uploadcare::GroupList.list
# To get an array of groups:
@groups = @group_list.all
```

This is a paginated list, so [pagination](#Pagination) methods apply

#### Webhook
https://uploadcare.com/docs/api_reference/rest/webhooks/

You can use webhooks to provide notifications about your uploads to target urls.
This gem lets you create and manage webhooks.

Each webhook payload can be signed with a secret (the `signing_secret` option) to ensure that the request comes from the expected sender.
More info about secure webhooks [here](https://uploadcare.com/docs/security/secure-webhooks/).

```ruby
Uploadcare::Webhook.create(target_url: "https://example.com/listen", event: "file.uploaded", is_active: true, signing_secret: "some-secret")
Uploadcare::Webhook.update(, target_url: "https://newexample.com/listen/new", event: "file.uploaded", is_active: true, signing_secret: "some-secret")
Uploadcare::Webhook.delete("https://example.com/listen")
Uploadcare::Webhook.list
```

##### Webhook signature verification

The gem has a helper class to verify a webhook signature from headers —
`Uploadcare::Param::WebhookSignatureVerifier`. This class accepts three
important options:

- **:webhook_body** — this option represents parameters received in the webhook
request in the JSON format.
**NOTE**: if you're using Rails, you should exclude options `controller`,
`action` and `post` from the `webhook_body`.
- **:signing_secret** — the secret that was set while creating/updating a
webhook. This option can be specified as an ENV var with the name
`UC_SIGNING_SECRET` — then no need to send it to the verifier class.
- **:x_uc_signature_header** — the content of the `X-Uc-Signature` HTTP header
in the webhook request.

Using the `Uploadcare::Param::WebhookSignatureVerifier` class example:

```ruby
webhook_body = '{...}'

signing_secret = "12345X"
x_uc_signature_header = "v1=9b31c7dd83fdbf4a2e12b19d7f2b9d87d547672a325b9492457292db4f513c70"

Uploadcare::Param::WebhookSignatureVerifier.valid?(signing_secret: signing_secret, x_uc_signature_header: x_uc_signature_header, webhook_body: webhook_body)
```

You can write your verifier. Example code:

```ruby
webhook_body_json = '{...}'

signing_secret = ENV['UC_SIGNING_SECRET']
x_uc_signature_header = "v1=f4d859ed2fe47b9a4fcc81693d34e58ad12366a841e58a7072c1530483689cc0"

digest = OpenSSL::Digest.new('sha256')

calculated_signature = "v1=#{OpenSSL::HMAC.hexdigest(digest, signing_secret.force_encoding("utf-8"), webhook_body_json.force_encoding("utf-8"))}"

if calculated_signature == x_uc_signature_header
puts "WebHook signature matches!"
else
puts "WebHook signature mismatch!"
end
```

#### Add-Ons

An `Add-On` is an application implemented by Uploadcare that accepts uploaded files as an input and can produce other files and/or appdata as an output.

##### AWS Rekognition

```ruby
# Execute AWS Rekognition Add-On for a given target to detect labels in an image.
# Note: Detected labels are stored in the file's appdata.
Uploadcare::Addons.ws_rekognition_detect_labels('FILE_UUID')

# Check the status of AWS Rekognition.
Uploadcare::Addons.ws_rekognition_detect_labels_status('RETURNED_ID_FROM_WS_REKOGNITION_DETECT_LABELS')
```

##### AWS Rekognition Moderation

```ruby
# Execute AWS Rekognition Moderation Add-On for a given target to detect moderation labels in an image.
# Note: Detected moderation labels are stored in the file's appdata.

Uploadcare::Addons.ws_rekognition_detect_moderation_labels('FILE_UUID')

# Check the status of an Add-On execution request that had been started using the Execute Add-On operation.
Uploadcare::Addons.ws_rekognition_detect_moderation_labels_status('RETURNED_ID_FROM_WS_REKOGNITION_DETECT_MODERATION_LABELS')
```

##### ClamAV

```ruby
# ClamAV virus checking Add-On for a given target.
Uploadcare::Addons.uc_clamav_virus_scan('FILE_UUID')

# Check and purge infected file.
Uploadcare::Addons.uc_clamav_virus_scan('FILE_UUID', purge_infected: true )

# Check the status of an Add-On execution request that had been started using the Execute Add-On operation.
Uploadcare::Addons.uc_clamav_virus_scan_status('RETURNED_ID_FROM_UC_CLAMAV_VIRUS_SCAN')
```

##### Remove.bg

```ruby
# Execute remove.bg background image removal Add-On for a given target.
Uploadcare::Addons.remove_bg('FILE_UUID')

# You can pass optional parameters.
# See the full list of parameters here: https://uploadcare.com/api-refs/rest-api/v0.7.0/#operation/removeBgExecute
Uploadcare::Addons.remove_bg('FILE_UUID', crop: true, type_level: '2')

# Check the status of an Add-On execution request that had been started using the Execute Add-On operation.
Uploadcare::Addons.remove_bg_status('RETURNED_ID_FROM_REMOVE_BG')
```

#### Project

`Project` provides basic info about the connected Uploadcare project. That
object is also an Hashie::Mash, so every methods out of
[these](https://uploadcare.com/api-refs/rest-api/v0.7.0/#operation/projectInfo) will work.

```ruby
@project = Uploadcare::Project.project
# => #

@project.name
# => "demo"

@project.collaborators
# => []
# while that one was empty, it usually goes like this:
# [{"email": [email protected], "name": "Collaborator"}, {"email": [email protected], "name": "Collaborator"}]
```

#### Conversion

##### Video

After each video file upload you obtain a file identifier in UUID format.
Then you can use this file identifier to convert your video in multiple ways:

```ruby
Uploadcare::VideoConverter.convert(
[
{
uuid: "dc99200d-9bd6-4b43-bfa9-aa7bfaefca40",
size: { resize_mode: "change_ratio", width: "600", height: "400" },
quality: "best",
format: "ogg",
cut: { start_time: "0:0:0.0", length: "0:0:1.0" },
thumbs: { N: 2, number: 1 }
}
],
store: false
)
```
This method accepts options to set properties of an output file:

- **uuid** — the file UUID-identifier.
- **size**:
- **resize_mode** - size operation to apply to a video file. Can be `preserve_ratio (default)`, `change_ratio`, `scale_crop` or `add_padding`.
- **width** - width for a converted video.
- **height** - height for a converted video.

```
NOTE: you can choose to provide a single dimension (width OR height).
The value you specify for any of the dimensions should be a non-zero integer divisible by 4
```

- **quality** - sets the level of video quality that affects file sizes and hence loading times and volumes of generated traffic. Can be `normal (default)`, `better`, `best`, `lighter`, `lightest`.
- **format** - format for a converted video. Can be `mp4 (default)`, `webm`, `ogg`.
- **cut**:
- **start_time** - defines the starting point of a fragment to cut based on your input file timeline.
- **length** - defines the duration of that fragment.
- **thumbs**:
- **N** - quantity of thumbnails for your video - non-zero integer ranging from 1 to 50; defaults to 1.
- **number** - zero-based index of a particular thumbnail in a created set, ranging from 1 to (N - 1).
- **store** - a flag indicating if Uploadcare should store your transformed outputs.

```ruby
# Response
{
:result => [
{
:original_source=>"dc99200d-9bd6-4b43-bfa9-aa7bfaefca40/video/-/size/600x400/change_ratio/-/quality/best/-/format/ogg/-/cut/0:0:0.0/0:0:1.0/-/thumbs~2/1/",
:token=>911933811,
:uuid=>"6f9b88bd-625c-4d60-bfde-145fa3813d95",
:thumbnails_group_uuid=>"cf34c5a1-8fcc-4db2-9ec5-62c389e84468~2"
}
],
:problems=>{}
}
```
Params in the response:
- **result** - info related to your transformed output(-s):
- **original_source** - built path for a particular video with all the conversion operations and parameters.
- **token** - a processing job token that can be used to get a [job status](https://uploadcare.com/docs/transformations/video-encoding/#status) (see below).
- **uuid** - UUID of your processed video file.
- **thumbnails_group_uuid** - holds :uuid-thumb-group, a UUID of a [file group](https://uploadcare.com/api-refs/rest-api/v0.7.0/#operation/groupsList) with thumbnails for an output video, based on the thumbs [operation](https://uploadcare.com/docs/transformations/video-encoding/#operation-thumbs) parameters.
- **problems** - problems related to your processing job, if any.

To convert multiple videos just add params as a hash for each video to the first argument of the `Uploadcare::VideoConverter#convert` method:

```ruby
Uploadcare::VideoConverter.convert(
[
{ video_one_params }, { video_two_params }, ...
],
store: false
)
```

To check a status of a video processing job you can simply use appropriate method of `Uploadcare::VideoConverter`:

```ruby
token = 911933811
Uploadcare::VideoConverter.status(token)
```
`token` here is a processing job token, obtained in a response of a convert video request.

```ruby
# Response
{
:status => "finished",
:error => nil,
:result => {
:uuid => "dc99200d-9bd6-4b43-bfa9-aa7bfaefca40",
:thumbnails_group_uuid => "0f181f24-7551-42e5-bebc-14b15d9d3838~2"
}
}
```

Params in the response:
- **status** - processing job status, can have one of the following values:
- *pending* — video file is being prepared for conversion.
- *processing* — video file processing is in progress.
- *finished* — the processing is finished.
- *failed* — we failed to process the video, see error for details.
- *canceled* — video processing was canceled.
- **error** - holds a processing error if we failed to handle your video.
- **result** - repeats the contents of your processing output.
- **thumbnails_group_uuid** - holds :uuid-thumb-group, a UUID of a file group with thumbnails for an output video, based on the thumbs operation parameters.
- **uuid** - a UUID of your processed video file.

More examples and options can be found [here](https://uploadcare.com/docs/transformations/video-encoding/#video-encoding).

##### Document

After each document file upload you obtain a file identifier in UUID format.

You can use file identifier to determine the document format and possible conversion formats.
```ruby
Uploadcare::DocumentConverter.info("dc99200d-9bd6-4b43-bfa9-aa7bfaefca40")

# Response
{:error=>nil, :format=>{
:name=>"jpg",
:conversion_formats=>[
{:name=>"avif"}, {:name=>"bmp"}, {:name=>"gif"}, {:name=>"ico"}, {:name=>"pcx"}, {:name=>"pdf"}, {:name=>"png"}, {:name=>"ps"}, {:name=>"svg"}, {:name=>"tga"}, {:name=>"thumbnail"}, {:name=>"tiff"}, {:name=>"wbmp"}, {:name=>"webp"}
]
}}
```

Then you can use this file identifier to convert your document to a new format:

```ruby
Uploadcare::DocumentConverter.convert(
[
{
uuid: "dc99200d-9bd6-4b43-bfa9-aa7bfaefca40",
format: "pdf"
}
],
store: false
)
```
or create an image of a particular page (if using image format):
```ruby
Uploadcare::DocumentConverter.convert(
[
{
uuid: "a4b9db2f-1591-4f4c-8f68-94018924525d",
format: "png",
page: 1
}
],
store: false
)
```

This method accepts options to set properties of an output file:

- **uuid** — the file UUID-identifier.
- **format** - defines the target format you want a source file converted to. The supported values are: `pdf` (default), `doc`, `docx`, `xls`, `xlsx`, `odt`, `ods`, `rtf`, `txt`, `jpg`, `png`. In case the format operation was not found, your input document will be converted to `pdf`.
- **page** - a page number of a multi-paged document to either `jpg` or `png`. The method will not work for any other target formats.

```ruby
# Response
{
:result => [
{
:original_source=>"a4b9db2f-1591-4f4c-8f68-94018924525d/document/-/format/png/-/page/1/",
:token=>21120220
:uuid=>"88fe5ada-90f1-422a-a233-3a0f3a7cf23c"
}
],
:problems=>{}
}
```
Params in the response:
- **result** - info related to your transformed output(-s):
- **original_source** - source file identifier including a target format, if present.
- **token** - a processing job token that can be used to get a [job status](https://uploadcare.com/docs/transformations/document-conversion/#status) (see below).
- **uuid** - UUID of your processed document file.
- **problems** - problems related to your processing job, if any.

To convert multiple documents just add params as a hash for each document to the first argument of the `Uploadcare::DocumentConverter#convert` method:

```ruby
Uploadcare::DocumentConverter.convert(
[
{ doc_one_params }, { doc_two_params }, ...
],
store: false
)
```

To check a status of a document processing job you can simply use appropriate method of `Uploadcare::DocumentConverter`:

```ruby
token = 21120220
Uploadcare::DocumentConverter.status(token)
```
`token` here is a processing job token, obtained in a response of a convert document request.

```ruby
# Response
{
:status => "finished",
:error => nil,
:result => {
:uuid => "a4b9db2f-1591-4f4c-8f68-94018924525d"
}
}
```

Params in the response:
- **status** - processing job status, can have one of the following values:
- *pending* — document file is being prepared for conversion.
- *processing* — document file processing is in progress.
- *finished* — the processing is finished.
- *failed* — we failed to process the document, see error for details.
- *canceled* — document processing was canceled.
- **error** - holds a processing error if we failed to handle your document.
- **result** - repeats the contents of your processing output.
- **uuid** - a UUID of your processed document file.

More examples and options can be found [here](https://uploadcare.com/docs/transformations/document-conversion/#document-conversion)

## Secure delivery

You can use custom domain and CDN provider to deliver files with authenticated URLs (see [original documentation](https://uploadcare.com/docs/security/secure_delivery/)).

To generate authenticated URL from the library, you should choose `Uploadcare::SignedUrlGenerators::AkamaiGenerator` (or create your own generator implementation):

```ruby
generator = Uploadcare::SignedUrlGenerators::AkamaiGenerator.new(cdn_host: 'example.com', secret_key: 'secret_key')
# Optional parameters: ttl: 300, algorithm: 'sha256'
generator.generate_url(uuid, acl = optional)

generator.generate_url("a7d5645e-5cd7-4046-819f-a6a2933bafe3")
# https://example.com/a7d5645e-5cd7-4046-819f-a6a2933bafe3/?token=exp=1649405263~acl=/a7d5645e-5cd7-4046-819f-a6a2933bafe3/~hmac=a989cae5342f17013677f5a0e6577fc5594cc4e238fb4c95eda36634eb47018b

# You can pass in ACL as a second parameter to generate_url. See https://uploadcare.com/docs/security/secure-delivery/#authenticated-urls for supported acl formats
generator.generate_url("a7d5645e-5cd7-4046-819f-a6a2933bafe3", '/*/')
# https://example.com/a7d5645e-5cd7-4046-819f-a6a2933bafe3/?token=exp=1649405263~acl=/*/~hmac=3ce1152c6af8864b36d4dc721f08ca3cf0b3a20278d7f849e82c6c930d48ccc1

# Optionally you can use wildcard: true to generate a wildcard acl token
generator.generate_url("a7d5645e-5cd7-4046-819f-a6a2933bafe3", wildcard: true)
# https://example.com/a7d5645e-5cd7-4046-819f-a6a2933bafe3/?token=exp=1714233449~acl=/a7d5645e-5cd7-4046-819f-a6a2933bafe3/*~hmac=a568ee2a85dd90a8a8a1ef35ea0cc0ef0acb84fe81990edd3a06eacf10a52b4e

# You can also pass in a custom ttl and algorithm to AkamaiGenerator
generator = Uploadcare::SignedUrlGenerators::AkamaiGenerator.new(cdn_host: 'example.com', secret_key: 'secret_key', ttl: 10)
generator.generate_url("a7d5645e-5cd7-4046-819f-a6a2933bafe3")
# This generates a URL that expires in 10 seconds
# https://example.com/a7d5645e-5cd7-4046-819f-a6a2933bafe3/?token=exp=1714233277~acl=/a7d5645e-5cd7-4046-819f-a6a2933bafe3/~hmac=f25343104aeced3004d2cc4d49807d8d7c732300b54b154c319da5283a871a71
```
## Useful links

* [Development](https://github.com/uploadcare/uploadcare-ruby/blob/main/DEVELOPMENT.md)
* [Uploadcare documentation](https://uploadcare.com/docs/?utm_source=github&utm_medium=referral&utm_campaign=uploadcare-ruby)
* [Upload API reference](https://uploadcare.com/api-refs/upload-api/?utm_source=github&utm_medium=referral&utm_campaign=uploadcare-ruby)
* [REST API reference](https://uploadcare.com/api-refs/rest-api/?utm_source=github&utm_medium=referral&utm_campaign=uploadcare-ruby)
* [Changelog](./CHANGELOG.md)
* [Contributing guide](https://github.com/uploadcare/.github/blob/master/CONTRIBUTING.md)
* [Security policy](https://github.com/uploadcare/uploadcare-ruby/security/policy)
* [Support](https://github.com/uploadcare/.github/blob/master/SUPPORT.md)