title: Flask request.get_json() raise BadRequest
body: <p>I have a Flask API with this endpoint : </p>
  
  <pre><code>@app.route('/classify/', methods=['POST'])
  def classify():
      data = request.get_json()
  </code></pre>
  
  <p>When I POST a request with python, eveything is fine.</p>
  
  <p>But when I use Postman, I get :</p>
  
  <pre><code>&lt;class 'werkzeug.exceptions.BadRequest'&gt; : 400: Bad Request
  </code></pre>
  
  <p>I send the same Json with both (I copy/paste it to be sure). I am fairly confident the issue is caused by some "\t" in my json, which are escaped by python but not by Postman.</p>
  
  <p>Is there a way to retrieve the raw json, and process it (escape what needs to be escaped) in the app ? Or another way to get the json ?</p>
  
  <p>EDIT : This is a different question from the one you suggested as duplicate, because yours suggest to use get_json, which is the problem in my case.</p>