Скачать или смотреть how to build a simple image resizing api

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building a simple image resizing api can be accomplished using various programming languages and frameworks. for this tutorial, we'll use python with the flask framework, and the pillow library for image processing. this api will allow users to upload an image and specify the desired width and height for resizing.

prerequisites

1. **python**: make sure you have python installed. you can download it from [python.org](https://www.python.org/downloads/).
2. **flask**: install flask using pip:
```bash
pip install flask
```
3. **pillow**: install pillow for image manipulation:
```bash
pip install pillow
```

step-by-step guide

1. set up your project structure

create a directory for your project. inside this directory, create a file named `app.py`.

```plaintext
image-resizing-api/
└── app.py
```

2. create the flask application

open `app.py` and add the following code:

```python
from flask import flask, request, jsonify
from pil import image
import os
from io import bytesio
import base64

app = flask(__name__)

@app.route('/resize', methods=['post'])
def resize_image():
check if an image was uploaded
if 'image' not in request.files:
return jsonify({'error': 'no image provided'}), 400

image_file = request.files['image']
width = request.form.get('width')
height = request.form.get('height')

if not width or not height:
return jsonify({'error': 'width and height are required'}), 400

try:
width = int(width)
height = int(height)
except valueerror:
return jsonify({'error': 'width and height must be integers'}), 400

open the image file
image = image.open(image_file)

resize the image
resized_image = image.resize((width, height))

save the resized image to a bytes buffer
img_byte_arr = bytesio()
resized_image.save(img_byte_arr, format='png')
img_byte_arr.seek(0)

encode the image to base64
img_base64 = base64.b64encode(img ...

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