CODEWITHSUNDEEP
pythonflaskcharacter-encodingblueprint
Heather Lau
Heather Lau

Reputation: 15

Flask - How to deal with Chinese character in URL

I am using Flask to building a REST API, but when I pass query parameters with Chinese Character, I got garbled characters instead of Chinese

from flask import Blueprint
from flask_restful import Resource, Api

class Keyword(Resource):
    def post(self, keyword):
        return {"keyword": "keyword"}

keyword_api = Blueprint('resourses.keyword', __name__)
api = Api(keyword_api)
api.add_resource(
    Keyword,
    '/keyword/<string:keyword>',
    endpoint='keyword'
)

POST http://localhost:5000/keyword/價錢

I expected the output of {"keyword": "價錢"}, but the actual output is {"keyword": "è²´é\u0081\u008e"}

Update: Right now I added this to the code, it returns {"keyword": "價錢"} correctly

keyword = keyword.encode('iso-8859-1').decode('utf8')

Upvotes: 1

Views: 1656

Answers (2)

Juliecodestack
Juliecodestack

Reputation: 9

The type is 'utf-8' but decoded by'iSO-8859-1', so there are garbled characters. The Bytes data was decoded into Str by 'iso-8859-1'. When you encoded it by 'iso-8859-1', it changed back to Bytes data again, then decoded it by utf-8 and the output was right. It's the change between different encoding/decoding types. You may set the decoding type to be utf-8 if you find the corresponding parameters.

Upvotes: 0

Supreet Sethi
Supreet Sethi

Reputation: 1806

The code seems to be functioning correctly. I have taken the liberty of modifying it a bit and make it into a working example. Important thing to notice is that b'{"keyword": "\u50f9\u9322"}' object type is bytes denoted by b prefix. If you serialize this data from json to python native string, you will find it is valid 價錢 encoded.

from flask import Blueprint, Flask
from flask_restful import Resource, Api
from werkzeug.local import LocalProxy
from logging import DEBUG

app = Flask(__name__)
app.logger.setLevel(DEBUG)
logger = LocalProxy(lambda: app.logger)


class Keyword(Resource):
   def post(self, keyword):
      logger.info("Keyword: {}".format(type(keyword)))
      return {"keyword": keyword}

keyword_api = Blueprint('resourses.keyword', __name__)
api = Api(keyword_api)
api.add_resource(
    Keyword,
    '/keyword/<string:keyword>',
    endpoint='keyword'
)

app.register_blueprint(keyword_api)

Upvotes: 1

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