# Filter out portrait-oriented images

In this demo, we import two image files, one landscape the other portrait. Then using[🤖/file/filter](/docs/robots/file-filter.md), reject the uploaded portrait-oriented image.

Using the `accept` parameter, we are able to choose certain meta data conditions for theRobot to accept. First we, select that only image files can be passed, then using the images embedded meta data, we select any aspect ratio greater than 1 can be accepted.

:bulb: The set aspect ratio value is based around width/height and, as such, the value 1 would be square, making anything greater than 1 landscape-oriented. For example, if you wanted a 4/3 image, you would choose 1.33 or if you wanted a 16/9 image, you would choose 1.77

Following these conditions, we use [🤖/s3/export](/docs/robots/file-filter.md) to send the filtered file to a S3 storage bucket.

To see other meta data conditions [🤖/file/filter](/docs/robots/file-filter.md) can follow, please see our [Available Job Variables](/docs/robots/file-filter.md#job-variables) page.

Step 1

### Handle uploads

We can handle uploads of your users directly. [Learn more ›](/services/handling-uploads.md)

![patrick-tomasso-60176.jpg](https://demos.transloadit.com/3a/501c4b31bf456b82f3f1c9232eff13/patrick-tomasso-60176.jpg)

[patrick-tomasso-60176.jpg](https://demos.transloadit.com/3a/501c4b31bf456b82f3f1c9232eff13/patrick-tomasso-60176.jpg)

Image · 1.3 MB · 2731 × 4096

![chameleon.jpg](https://demos.transloadit.com/55/f55c36282641fdb7608645646eb855/chameleon.jpg)

[chameleon.jpg](https://demos.transloadit.com/55/f55c36282641fdb7608645646eb855/chameleon.jpg)

Image · 8.9 MB · 4799 × 3199

```
":original": {
  "robot": "/upload/handle"
}
```

🤖 [/upload/handle](/docs/robots/upload-handle.md)

This bot receives uploads that your users throw at you from browser or apps, or that you throw at us programmatically

Step 2

### Filter files

We let you reject, or direct files against different encoding Steps. [Learn more ›](/services/file-filtering.md)

![chameleon.jpg](https://demos.transloadit.com/55/f55c36282641fdb7608645646eb855/chameleon.jpg)

[chameleon.jpg](https://demos.transloadit.com/55/f55c36282641fdb7608645646eb855/chameleon.jpg)

Image · 8.9 MB · 4799 × 3199

```
"files_filtered": {
  "use": ":original",
  "robot": "/file/filter",
  "result": true,
  "accepts": [
    [
      "${file.meta.aspect_ratio}",
      ">",
      "1.0"
    ],
    [
      "${file.mime}",
      "regex",
      "image"
    ]
  ],
  "condition_type": "and"
}
```

🤖 [/file/filter](/docs/robots/file-filter.md)

This bot directs files to different encoding Steps based on your conditions

Step 3

### Export files to Amazon S3

We export to the storage platform of your choice. [Learn more ›](/services/file-exporting.md)

`:original`

* [https://demos.transloadit.com/3a/501c4b31bf456b82f3f1c9232eff13/patrick-tomasso-60176.jpg⁠](https://demos.transloadit.com/3a/501c4b31bf456b82f3f1c9232eff13/patrick-tomasso-60176.jpg)
* [https://demos.transloadit.com/55/f55c36282641fdb7608645646eb855/chameleon.jpg⁠](https://demos.transloadit.com/55/f55c36282641fdb7608645646eb855/chameleon.jpg)

`files_filtered`

* [https://demos.transloadit.com/55/f55c36282641fdb7608645646eb855/chameleon.jpg⁠](https://demos.transloadit.com/55/f55c36282641fdb7608645646eb855/chameleon.jpg)

```
"exported": {
  "use": [
    "files_filtered",
    ":original"
  ],
  "robot": "/s3/store",
  "credentials": "demo_s3_credentials",
  "url_prefix": "https://demos.transloadit.com/"
}
```

🤖 [/s3/store](/docs/robots/s3-store.md)

This bot exports encoding results to Amazon S3

## Live Demo. See for yourself

Loading Uppy demo…

This live demo is powered by [Uppy⁠](https://uppy.io/docs/guides/uppy-transloadit/), our open source file uploader that you can also use without Transloadit, and [tus⁠](https://tus.io), our open protocol for resumable file uploads that is making uploading more reliable across the world.

## Build this in your own language

```
<!-- This pulls Uppy from our CDN -->
<!-- For smaller self-hosted bundles, install Uppy and plugins manually: -->
<!-- npm i --save @uppy/core @uppy/dashboard @uppy/remote-sources @uppy/transloadit ... -->
<link
  href="https://releases.transloadit.com/uppy/v3.10.0/uppy.min.css"
  rel="stylesheet"
/>
<button id="browse">Select Files</button>
<script type="module">
  import {
    Uppy,
    Dashboard,
    ImageEditor,
    RemoteSources,
    Transloadit,
  } from 'https://releases.transloadit.com/uppy/v3.10.0/uppy.min.mjs'
  const uppy = new Uppy()
    .use(Transloadit, {
      waitForEncoding: true,
      alwaysRunAssembly: true,
      assemblyOptions: {
        params: {
          // It's often better store encoding instructions in your account
          // and use a `template_id` instead of adding these steps inline
          steps: {
            ':original': {
              robot: '/upload/handle',
            },
            files_filtered: {
              use: ':original',
              robot: '/file/filter',
              result: true,
              accepts: [['${file.meta.aspect_ratio}', '>', '1.0'], ['${file.mime}', 'regex', 'image']],
              condition_type: 'and',
            },
            exported: {
              use: ['files_filtered', ':original'],
              robot: '/s3/store',
              credentials: 'demo_s3_credentials',
              url_prefix: 'https://demos.transloadit.com/',
            },
          },
        },
      },
    })
    .use(Dashboard, { trigger: '#browse' })
    .use(ImageEditor, { target: Dashboard })
    .use(RemoteSources, {
      companionUrl: 'https://api2.transloadit.com/companion',
    })
    .on('complete', ({ transloadit }) => {
      // Due to `waitForEncoding:true` this is fired after encoding is done.
      // Alternatively, set `waitForEncoding` to `false` and provide a `notify_url`
      console.log(transloadit) // Array of Assembly Statuses
      for (const assembly of transloadit) {
        console.log(assembly.results) // Array of all encoding results
      }
    })
    .on('error', (error) => {
      console.error(error)
    })
</script>

```

[Read docs: Browsers](/docs/sdks/uppy.md)

## So many ways to integrate

Transloadit is a service for companies with developers. And there are many ways developers can put Transloadit to good use inside your company to automate media processing.

#### Bulk imports

Add one of our [import Robots](/services/file-importing.md) to acquire and transcode massive media libraries.

#### Handling uploads

We are *the* experts at reliably [handling uploads](/services/handling-uploads.md). We wrote the [protocol⁠](https://tus.io/) for it.

#### Front-end integration

We integrate with web browsers via our next-gen file uploader [Uppy⁠](https://uppy.io/docs/guides/uppy-transloadit/) and SDKs for Android and iOS.

#### Back-end integration

Send us batch jobs in any server language using one of our [SDKs](/docs/sdks.md) or directly interfacing with our [REST API](/docs/api.md).

#### Pingbacks

Configure a [notify\_url](/services/content-delivery.md) to let your server receive transcoding results JSON in the `transloadit` POST field.

#### On-demand

Use our [Smart CDN](/services/file-importing.md) to adapt files on-demand and stream them directly to your users.

[Browsers](/docs/sdks/uppy.md)[TransloaditKit](/docs/sdks/transloaditkit.md)[Ruby SDK](/docs/sdks/ruby-sdk.md)[HTTP REST API](/docs/api.md)[Python SDK](/docs/sdks/python-sdk.md)[PHP SDK](/docs/sdks/php-sdk.md)[Node.js SDK](/docs/sdks/node-sdk.md)[Java SDK](/docs/sdks/java-sdk.md)[Go SDK](/docs/sdks/go-sdk.md)[cURL](/docs/sdks/curl.md)[Convex](/docs/sdks/convex.md)

[Browsers](/docs/sdks/uppy.md)[TransloaditKit](/docs/sdks/transloaditkit.md)[Ruby SDK](/docs/sdks/ruby-sdk.md)[HTTP REST API](/docs/api.md)[Python SDK](/docs/sdks/python-sdk.md)[PHP SDK](/docs/sdks/php-sdk.md)[Node.js SDK](/docs/sdks/node-sdk.md)[Java SDK](/docs/sdks/java-sdk.md)[Go SDK](/docs/sdks/go-sdk.md)[cURL](/docs/sdks/curl.md)[Convex](/docs/sdks/convex.md)

[Browsers](/docs/sdks/uppy.md)[TransloaditKit](/docs/sdks/transloaditkit.md)[Ruby SDK](/docs/sdks/ruby-sdk.md)[HTTP REST API](/docs/api.md)[Python SDK](/docs/sdks/python-sdk.md)[PHP SDK](/docs/sdks/php-sdk.md)[Node.js SDK](/docs/sdks/node-sdk.md)[Java SDK](/docs/sdks/java-sdk.md)[Go SDK](/docs/sdks/go-sdk.md)[cURL](/docs/sdks/curl.md)[Convex](/docs/sdks/convex.md)

## Other cool demos

* [View demo→File Filtering & SecurityAutomatically decompress uploaded archives](/demos/file-filtering/automatically-extract-archives.md)
* [View demo→File Filtering & SecurityAutomatically filter files to separate encoding steps](/demos/file-filtering/filter-files-for-separate-encoding-steps.md)
* [View demo→Document ProcessingAdd a header or footer to a PDF](/demos/document-processing/add-header-or-footer-to-pdf.md)

Try Transloadit

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