Tutorial: Python connects to Huawei Cloud interface to implement document conversion function

Tutorial: Python connects to Huawei Cloud interface to implement document conversion function

Introduction:
With the popularization and application of cloud computing, more and more enterprises and developers have begun to transform their business from Traditional on-premises deployments move to the cloud. As a leading cloud service provider, Huawei Cloud provides a wealth of cloud service functions, including document conversion services. This tutorial will connect to the Huawei Cloud interface through Python to implement the document conversion function.

1. Preparation
Before starting, we need to complete the following preparations:
1. Register and log in to a Huawei Cloud account and create a new project.
2. Activate the document conversion service in the project and obtain the corresponding API key.

2. Install Python SDK
Huawei Cloud provides Python SDK for us to use. We can install it through the pip command. Execute the following command in the command line:

pip install obs-python-sdk

3. Connect to Huawei Cloud API
In order to connect to Huawei Cloud API, we need to use the obs module in Huawei Cloud Python SDK. Introduce this module into the code and initialize the connection information of obs. The code is as follows:

import hmac
import hashlib
import datetime
import urllib

from obs import const
from obs import ObsClient

ak = 'your-access-key' # 替换为你的Access Key
sk = 'your-secret-key' # 替换为你的Secret Key
server = 'your-endpoint' # 替换为你的华为云服务端点

service_name = 's3'

auth = ObsClient(access_key_id=ak, secret_access_key=sk, server=server, service_name=service_name)

4. Document conversion
After the connection is successful, we can use the interface provided by the obs module to convert documents. The following is an example of converting a Word document to PDF format:

def convert_word_to_pdf(source_bucket, source_key, target_bucket, target_key):
    convert_params = {'targetBucket': target_bucket, 'targetKey': target_key,
                      'params': {'convertType': 'pdf', 'dstType': 'pdf'}}
    auth.convertObject(convert_params, source_bucket, source_key)

In the code, we call the auth.convertObject interface to convert the source object to the target object and specify the conversion The type is PDF.

5. Test run
After writing the code, we can run the test to verify the correctness of the code. Here is a simple test code example:

source_bucket = 'your-source-bucket'
source_key = 'your-source-key.docx'
target_bucket = 'your-target-bucket'
target_key = 'your-target-key.pdf'

convert_word_to_pdf(source_bucket, source_key, target_bucket, target_key)

Before running the test code, we need to make sure that your-source-bucket and your-target-bucket are correct Huawei cloud storage bucket name, your-source-key.docx is the object key of the Word document to be converted in the source bucket, your-target-key.pdf is the conversion The object Key of the PDF file in the target bucket.

6. Summary
Through this tutorial, we learned how to use Python to connect to the Huawei Cloud interface and convert document formats through the document conversion service provided by Huawei Cloud. I hope this tutorial can help everyone and bring convenience and efficiency to your development work in cloud computing.

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