APIS

Table of Content

The present project supports two types of APIs, All methods need the Redis;

• Functional calls in Python
• HTTP protocols

Python

As pdf2zh is an installed module in Python, we expose two methods for other programs to call in any Python scripts.

For example, if you want translate a document from English to Chinese using Google Translate, you may use the following code:

from pdf2zh_next import translate, translate_stream

params = {
    'lang_in': 'en',
    'lang_out': 'zh',
    'service': 'google',
    'thread': 4,
}

(file_mono, file_dual) = translate(files=['example.pdf'], **params)[0]

with open('example.pdf', 'rb') as f:
    (stream_mono, stream_dual) = translate_stream(stream=f.read(), **params)

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HTTP

In a more flexible way, you can communicate with the program using HTTP protocols, if:

1. Install and run backend

pip install pdf2zh_next[backend]
pdf2zh_next --flask
pdf2zh_next --celery worker

1. Using HTTP protocols as follows:

2. Submit translate task

   curl http://localhost:11008/v1/translate -F "[email protected]" -F "data={\"lang_in\":\"en\",\"lang_out\":\"zh\",\"service\":\"google\",\"thread\":4}"
   {"id":"d9894125-2f4e-45ea-9d93-1a9068d2045a"}
   

3. Check Progress

   curl http://localhost:11008/v1/translate/d9894125-2f4e-45ea-9d93-1a9068d2045a
   {"info":{"n":13,"total":506},"state":"PROGRESS"}
   

4. Check Progress (if finished)

   curl http://localhost:11008/v1/translate/d9894125-2f4e-45ea-9d93-1a9068d2045a
   {"state":"SUCCESS"}
   

5. Save monolingual file

   curl http://localhost:11008/v1/translate/d9894125-2f4e-45ea-9d93-1a9068d2045a/mono --output example-mono.pdf
   

6. Save bilingual file

   curl http://localhost:11008/v1/translate/d9894125-2f4e-45ea-9d93-1a9068d2045a/dual --output example-dual.pdf
   

7. Interrupt if running and delete the task

   curl http://localhost:11008/v1/translate/d9894125-2f4e-45ea-9d93-1a9068d2045a -X DELETE
   

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