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I have a flask app which I've deployed to Heroku, one of the routes is the following
def get_kws(): seed_kw = request.json['firstParam'] audience_max = request.json['secondParam'] interest_mining_service = InterestMiningService(seed_kw, audience_max) query_result = interest_mining_service.query_keyword().tolist() if seed_kw in query_result: print ("yes") return jsonify( { 'keyword_data' : interest_mining_service.find_kws().to_json(orient='records'), 'query_results': query_result } ) When I test this endpoint locally, I have no issues when sending POST and GET requests to that endpoint. However, when I deploy to Heroku, I get the following error:
File "/app/server/controller.py", line 24, in get_kws 2020-02-08T22:31:05.893850+00:00 app[web.1]: 'query_results': query_result 2020-02-08T22:31:05.893850+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/flask/json.py", line 298, in jsonify 2020-02-08T22:31:05.893851+00:00 app[web.1]: if current_app.config['JSONIFY_PRETTYPRINT_REGULAR'] and not request.is_xhr: 2020-02-08T22:31:05.893851+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/werkzeug/local.py", line 347, in __getattr__ 2020-02-08T22:31:05.893852+00:00 app[web.1]: return getattr(self._get_current_object(), name) 2020-02-08T22:31:05.893858+00:00 app[web.1]: AttributeError: 'Request' object has no attribute 'is_xhr' I've never seen this error Request object has no attribute 'is_xhr' before and it only seems to be happening when I deploy to Heroku. Any guidance on what I should look into?
There also doesn't seem to be an issue with the json key keyword_data - the issue seems limited to query_results which is a list.
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Deploying Flask App on HerokuSTEP 1 : Create a virtual environment with pipenv and install Flask and Gunicorn . STEP 2 : Create a “Procfile” and write the following code. STEP 3 : Create “runtime.
In this tutorial, you'll create a Python Flask example application and deploy it using Heroku, making it publicly available on the web. Heroku removes much of the infrastructure burden related to building and running web applications, allowing you to focus on creating an awesome app.
On Heroku, when it comes to deploying web apps written with Flask, it requires you to download the Heroku CLI and then proceed further. Well, there's another way to do it as well and that is by installing dependencies on the go and deploying the Flask app by connecting the GitHub repository to your Heroku app.
The Werkzeug library (dependency from Flask) recently received a major update (0.16.1 --> 1.0.0) and it looks like Flask (<=0.12.4) does not restrict the version of Werkzeug that is fetched.
You have 2 options:
Stick with your current version of Flask and restrict the Werkzeug version that is fetched explicitly in your application's setup.py or requirements.txt by specifying werkzeug<1.0 or werkzeug==0.16.1
Upgrade to a recent version of Flask (>=1.0.0), which is running fine with latest Werkzeug
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Or you can just forcefully install the bustard again by calling
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