So instead of using: return response.stream(file_path, chunk_size=10**6, filename='output.pdf')
I simply use: pdf_data = open(file_path,"rb").read() return pdf_data and it works. No idea why, because I thought "stream" method was supposed to be used to stream files, but it does not work. W dniu środa, 20 sierpnia 2014 15:43:14 UTC+2 użytkownik Kuba Kozłowicz napisał: > > from applications.ChartGenerator.modules import generator > from gluon import HTTP, contenttype > > #URL > def generate(): > if request.env.request_method == 'POST': > import gluon.contrib.simplejson > try: > data = gluon.contrib.simplejson.loads(request.body.read()) > file_path = generator.go(data) > response.headers['Content-Disposition'] = 'attachment; > filename=' + 'output.pdf' > response.headers['Content-Type'] = contenttype.CONTENT_TYPE[ > '.pdf'] > return response.stream(file_path, chunk_size=10**6, filename= > 'output.pdf') > > > client code: > > import requests > import json > > payload = """ > ... > <chart_params_in_json> > ... > """ > data_dict = json.loads(payload) > > url = 'http://127.0.0.1:8000/ChartGenerator/charts/generate' > resp = requests.post(url, data=json.dumps(data_dict), stream=True) > filename = 'x.pdf' > > with open(filename, 'wb') as f: > for chunk in resp.iter_content(chunk_size=10**6): > if chunk: # filter out keep-alive new chunks > f.write(chunk) > f.flush() > > print resp.headers > > { > 'content-length': '15', > 'set-cookie': > 'session_id_chartgenerator=127.0.0.1-e21b530d-b5e0-4a6f-aa41-63e394124d5c;Path=/' > , > 'server': 'Rocket1.2.6Python/2.7.5', > 'connection': 'keep-alive', > 'date': 'Wed, > 20Aug201413: 22: 47GMT', > 'content-type': 'text/html;charset=UTF-8' > } > > The downloaded file via > request.post > > has only 1KB, but the original file has 145KB. Content-Type on server side > does not get set to 'application/pdf', even though I explicitly set it with > following line: > response.headers['Content-Type'] = contenttype.CONTENT_TYPE['.pdf'] > > I guess this is the problem, because when I tried to open the downloaded > pdf file an error appeared saying that the file cannot be opened due to > invalid encoding method. > > With the original file everything is alright, because it is generated > properly after receiving chart params from the client. > > How can I solve this? > > > -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
