Pure Python
Real-time image resizing, automatic optimization, and file uploading in Python application using ImageKit.io.
This quick start guide shows you how to integrate ImageKit into the Python application. The code samples covered here are hosted on GitHub - https://github.com/imagekit-samples/quickstart/tree/master/python.
This guide walks you through the following topics:
Setting up ImageKit Python SDK
We will create a new Python application for this tutorial and work with it.
First, we will install the imagekitio dependencies in our machine by applying the following things to our application.
Install dependencies
Quick Examples
It loads the imagekitio dependency in our application. Before the SDK can be used, let's learn about and configure the requisite authentication parameters that need to be provided to the SDK.
Initialize SDK
In the main file of project, add your public and private API keys, as well as the URL Endpoint parameters for authentication, (You can find these keys in the Developer section of your ImageKit Dashboard)
The imagekitio client is configured with user-specific credentials.
publicKey
andprivateKey
parameters are required as these would be used for all ImageKit API, server-side upload, and generating tokens for client-side file upload. You can get these parameters from the developer section in your ImageKit dashboard - https://imagekit.io/dashboard/developer/api-keys.urlEndpoint
is also a required parameter. You can get the value of URL-endpoint from your ImageKit dashboard - https://imagekit.io/dashboard/url-endpoints.
Uploading images in python app
There are different ways to upload the file in imagekitio. Let's upload the remote file to imagekitio using the following code:
Example
The output should be like this:
Congratulation, the file was uploaded successfully.
Generating URL for rendering images in python app
Here, declare a variable to store the image URL generated by the SDK. Like this:
Example
Now, image_url
has the URL https://ik.imagekit.io/<your_imagekit_id>/default-image.jpg
stored in it. This fetches the image from the URL stored in image_url
.
Open the URL in the browser. It should now display this default image in its full size:
Common image manipulation in Python App
Let’s now learn how to manipulate images using ImgeKit transformations.
Height and width manipulation
To resize an image or video along with its height or width, we need to pass the transformation
option in imageKit.url()
method.
Let's resize the default image to 200px height and width:
Example
Transformation URL:
Refresh your browser with a new url to get the resized image.
The imageKit.url()
method accepts the following parameters.
Option | Description |
---|---|
urlEndpoint | Optional. The base URL is to be appended before the path of the image. If not specified, the URL Endpoint specified at the time of SDK initialization is used. For example, https://ik.imagekit.io/your_imagekit_id/endpoint/ |
path | Conditional. This is the path on which the image exists. For example, |
src | Conditional. This is the complete URL of an image already mapped to ImageKit. For example, |
transformation | Optional. An array of objects specifying the transformation to be applied in the URL. The transformation name and the value should be specified as a key-value pair in the object. Different steps of a chained transformation can be specified as different objects of the array. The complete List of supported transformations in the SDK and some examples of using them are given later. If you use a transformation name that is not specified in the SDK, it gets applied as it is in the URL. |
transformationPosition | Optional. The default value is |
queryParameters | Optional. These are the other query parameters that you want to add to the final URL. These can be any query parameters and are not necessarily related to ImageKit. Especially useful if you want to add some versioning parameters to your URLs. |
signed | Optional. Boolean. The default value is |
expireSeconds | Optional. Integer. It is used along with the |
Applying Chained Transformations, Common Image Manipulations & Signed URL
This section covers the basics:
The Python SDK gives a name to each transformation parameter e.g. height
for h
and width
for w
parameter. It makes your code more readable. See the Full List of supported transformations.
👉 If the property does not match any of the available options, it is added as it is.
👉 Note that you can also use the h
and w
parameters instead of height
and width
.
For more examples, check the Demo Application.
1. Chained Transformations
Chained transformations provide a simple way to control the sequence in which transformations are applied.
Chained Transformations as a query parameter
Let's try it out by resizing an image, then rotating it:
Example
Transformation URL:
Output Image:
Now, rotate the image by 90 degrees.
Example
Chained Transformation URL:
Output Image:
Let's flip the order of transformation and see what happens.
Example
Chained Transformation URL:
Output Image:
2. Image enhancement and color manipulation
Some transformations like Contrast stretch , Sharpen and Unsharp mask can be added to the URL with or without any other value. To use such transforms without specifying a value, specify the value as "-" in the transformation object. Otherwise, specify the value that you want to be added to this transformation.
Example
Transformation URL:
Output Image:
3. Resizing images
Let's resize the image to a width of 200 and a height of 200. Check detailed instructions on Resize, Crop, and Other Common Transformations
Example
Transformation URL:
Output Image:
4. Quality manipulation
You can use the Quality Parameter to change quality like this.
Example
Transformation URL:
Output Image:
5. Adding overlays
ImageKit.io enables you to apply overlays to images and videos using the raw parameter with the concept of layers. The raw parameter facilitates incorporating transformations directly in the URL. A layer is a distinct type of transformation that allows you to define an asset to serve as an overlay, along with its positioning and additional transformations.
Text as overlays
You can add any text string over a base video or image using a text layer (l-text).
For example:
Sample Result URL
Output Image:
Image as overlays
You can add an image over a base video or image using an image layer (l-image).
For example:
Sample Result URL
Output Image:
Solid color blocks as overlays
You can add solid color blocks over a base video or image using an image layer (l-image).
For example:
Sample Result URL
Output Image:
List of supported transformations
See the complete list of image and video transformations supported in ImageKit. The SDK gives a name to each transformation parameter e.g. height
for h
and width
for w
parameter. It makes your code more readable. If the property does not match any of the following supported options, it is added as it is.
If you want to generate transformations in your application and add them to the URL as it is, use the raw
parameter.
Supported Transformation Name | Translates to parameter |
---|---|
height | h |
width | w |
aspect_ratio | ar |
quality | q |
crop | c |
crop_mode | cm |
x | x |
y | y |
focus | fo |
format | f |
radius | r |
background | bg |
border | b |
rotation | rt |
blur | bl |
named | n |
progressive | pr |
lossless | lo |
trim | t |
metadata | md |
color_profile | cp |
default_image | di |
dpr | dpr |
effect_sharpen | e-sharpen |
effect_usm | e-usm |
effect_contrast | e-contrast |
effect_gray | e-grayscale |
effect_shadow | e-shadow |
effect_gradient | e-gradient |
original | orig |
raw |
|
Server-side File Upload
The SDK provides a simple interface using the imagekit.upload_file()
method to upload files to the ImageKit Media Library.
Example
Response
Optional Parameters
Please refer to Server Side File Upload - Request Structure for a detailed explanation of mandatory and optional parameters.
Example
ImageKit Media API
The SDK provides a simple interface for all the following Media APIs to manage your files.
1. List and Search Files
This API can list all the uploaded files and folders in your ImageKit.io media library.
Refer to the List and Search File API for a better understanding of the Request & Response Structure.
Example
Applying Filters
Filter out the files with an object specifying the parameters.
Advance Search
In addition, you can fine-tune your query by specifying various filters by generating a query string in a Lucene-like syntax and providing this generated string as the value of the searchQuery
.
Detailed documentation can be found here for Advance Search Queries.
2. Get File Details
This API can get you all the details and attributes of the current version of the file.
Refer to the Get File Details API for a better understanding of the Request & Response Structure.
Example
3. Get File Versions
This API can get you all the versions of the file.
Refer to the Get File Versions API for a better understanding of the Request & Response Structure.
Example
4. Get File Version Details
This API can get you all the details and attributes for the provided version of the file.versionID
can be found in the following APIs as id
within the versionInfo
parameter:
Refer to the Get File Version Details API for a better understanding of the Request & Response Structure.
Example
5. Update File Details
Update file details such as tags, customCoordinates attributes, remove existing AITags, and apply extensions using Update File Details API. This operation can only be performed on the current version of the file.
Refer to the Update File Details API for better understanding about the Request & Response Structure.
Example
6. Add Tags (Bulk) API
Add tags to multiple files in a single request. The method accepts an object which contains an array of fileIds
of the files and an array of tags
that have to be added to those files.
Refer to the Add Tags (Bulk) API for a better understanding of the Request & Response Structure.
Example
7. Remove Tags (Bulk) API
Remove tags from multiple files in a single request. The method accepts an object which contains an array of fileIds
of the files and an array of tags
that have to be removed from those files.
Refer to the Remove Tags (Bulk) API for a better understanding of the Request & Response Structure.
Example
8. Remove AI Tags (Bulk) API
Remove AI tags from multiple files in a single request. The method accepts an object which contains an array of fileIds
of the files and an array of AITags
that have to be removed from those files.
Refer to the Remove AI Tags (Bulk) API for a better understanding of the Request & Response Structure.
Example
9. Delete File API
You can programmatically delete uploaded files in the media library using delete file API.
If a file or specific transformation has been requested in the past, then the response is cached. Deleting a file does not purge the cache. You can purge the cache using Purge Cache API.
Refer to the Delete File API for better understanding about the Request & Response Structure.
Basic Usage
10. Delete File Version API
You can programmatically delete the uploaded file version in the media library using the delete file version API.
You can delete only the non-current version of a file.
Refer to the Delete File Version API for a better understanding of the Request & Response Structure.
Example
11. Delete Files (Bulk) API
Deletes multiple files and their versions from the media library.
Refer to the Delete Files (Bulk) API for a better understanding of the Request & Response Structure.
Example
12. Copy File API
This will copy a file from one folder to another.
If any file at the destination has the same name as the source file, then the source file and its versions (if
includeFileVersions
is set to true) will be appended to the destination file version history.
Refer to the Copy File API for a better understanding of the Request & Response Structure.
Basic Usage
13. Move File API
This will move a file and all its versions from one folder to another.
If any file at the destination has the same name as the source file, then the source file and its versions will be appended to the destination file.
Refer to the Move File API for a better understanding of the Request & Response Structure.
Example
14. Rename File API
You can programmatically rename an already existing file in the media library using Rename File API. This operation would rename all file versions of the file.
The old URLs will stop working. The file/file version URLs cached on CDN will continue to work unless a purge is requested.
Refer to the Rename File API for a better understanding of the Request & Response Structure.
Example
When purgeCache
is set to true
, response will return purgeRequestId
. This purgeRequestId
can be used to get the purge request status.
15. Restore file Version API
This will restore file version to a different version of a file. Refer to the Restore file Version API for a better understanding of the Request & Response Structure.
Example
16. Create Folder API
This will create a new folder. You can specify the folder name and location of the parent folder where this new folder should be created.
Refer to the Create Folder API for a better understanding of the Request & Response Structure.
Example
17. Delete Folder API
This will delete the specified folder and all nested files, their versions & folders. This action cannot be undone.
Refer to the Delete Folder API for a better understanding of the Request & Response Structure.
Example
18. Copy Folder API
This will copy one folder into another.
If any folder at the destination has the same name as the source folder, then the source folder and its versions (if
includeFileVersions
is set to true) will be appended to the destination folder version history.
Refer to the Copy Folder API for a better understanding of the Request & Response Structure.
Example
19. Move Folder API
This will move one folder into another. The selected folder, its nested folders, files, and their versions are moved in this operation.
If any file at the destination has the same name as the source file, then the source file and its versions will be appended to the destination file version history.
Refer to the Move Folder API for a better understanding of the Request & Response Structure.
Example
20. Bulk Job Status API
This endpoint allows you to get the status of a bulk operation e.g. Copy Folder API or Move Folder API.
Refer to the Bulk Job Status API for a better understanding of the Request & Response Structure.
Example
21. Purge Cache API
This will purge CDN and ImageKit.io's internal cache. In response requestId
is returned which can be used to fetch the status of the submitted purge request with Purge Cache Status API.
Refer to the Purge Cache API for a better understanding of the Request & Response Structure.
Example
22. Purge Cache Status API
Get the purge cache request status using the requestId
returned when a purge cache request gets submitted with Purge Cache API
Refer to the Purge Cache Status API for a better understanding of the Request & Response Structure.
Example
23. Get File Metadata API (From File ID)
Get the image EXIF, pHash, and other metadata for uploaded files in the ImageKit.io media library using this API.
Refer to the Get image metadata for uploaded media files API for a better understanding of the Request & Response Structure.
Example
24. Get File Metadata API (From Remote URL)
Get image EXIF, pHash, and other metadata from ImageKit.io powered remote URL using this API.
Refer to the Get image metadata from remote URL API for a better understanding of the Request & Response Structure.
Example
Custom Metadata Fields API
Imagekit.io allows you to define a schema
for your metadata keys and the value filled against that key will have to adhere to those rules. You can Create, Read, Update and Delete custom metadata rules and update your file with custom metadata value in File update API or File Upload API.
For a detailed explanation refer to the Custom Metadata Documentaion.
1. Create Fields
Create a Custom Metadata Field with this API.
Refer to the Create Custom Metadata Fields API for a better understanding of the Request & Response Structure.
Example
MultiSelect type Exmample:
Check for the Allowed Values In The Schema.
2. Get Fields
Get a list of all the custom metadata fields. if includeDeleted is passed and set to true
, the List will include deleted fields also.
Refer to the Get Custom Metadata Fields API for a better understanding of the Request & Response Structure.
Example
3. Update Fields
Update the label
or schema
of an existing custom metadata field.
Refer to the Update Custom Metadata Fields API for a better understanding of the Request & Response Structure.
Example
Check for the Allowed Values In The Schema.
4. Delete Fields
Delete a custom metadata field.
Refer to the Delete Custom Metadata Fields API for a better understanding of the Request & Response Structure.
Example
What's next
The possibilities for image manipulation and optimization with ImageKit are endless. Learn more about it here:
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