Send Post Request in Scrapy

The answer above do not really solved the problem. They are sending the data as paramters instead of JSON data as the body of the request.

From http://bajiecc.cc/questions/1135255/scrapy-formrequest-sending-json:

my_data = {'field1': 'value1', 'field2': 'value2'}
request = scrapy.Request( url, method='POST', 
                          body=json.dumps(my_data), 
                          headers={'Content-Type':'application/json'} )