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I'm uploading a json file via flask, but I'm having trouble actually reading what is in the file.

# named fJson b/c of other json imports from flask import json as fJson @app.route('/upload', methods=['GET', 'POST']) def upload(): if request.method == 'POST': file = request.files['file'] # data = fJson.load(file) # myfile = file.read()

I'm trying to deal with this by using the 'file' variable. I looked at http://flask.pocoo.org/docs/0.10/api/#flask.json.load, but I get the error "No JSON object could be decoded". I also looked at Read file data without saving it in Flask which recommended using file.read(), but that didn't work, returns either "None" or "".

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Request.files

A MultiDict with files uploaded as part of a POST or PUT request. Each file is stored as FileStorage object. It basically behaves like a standard file object you know from Python, with the difference that it also has a save() function that can store the file on the filesystem. http://flask.pocoo.org/docs/0.10/api/#flask.Request.files

You don't need use json, just use read(), like this:

if request.method == 'POST': file = request.files['file'] myfile = file.read()
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When I try to print that, it only prints an empty string (and I checked, my file does have stuff in it)
Nice, share with us your solution.
I did below this one, but it won't let me accept it as an answer for another day.
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For some reason the position in the file was at the end. Doing

file.seek(0)

before doing a read or load fixes the problem.

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