Sending HTTP post requests

Question

I am using a micropython firmware version esp8266-20190125-v1.10.bin for esp8266mod. I accessed REPL prompt via a wired connection using picocom and connected the device to my home wifi. I was trying to send some HTTP post requests using urequests.

import urequests response = urequests.post('http://lakshmick.pythonanywhere.com/savedata', data = {'string': 'posting from micropython'})

I got some error like this:

Traceback (most recent call last):
    File "<stdin>", line 1, in <module>
    File "urequests.py", line 115, in post
    File "urequests.py", line 100, in request
    File "urequests.py", line 79, in request
TypeError: object with buffer protocol required

Does it require any additional configuration procedures before importing urequests?

nekomatic · Accepted Answer · 2019-05-09 08:38:48Z

5

You need to serialize the data into a string before sending it:

myPostedData = {'YYYY' : 100}
res = urequest.post('https://XXX.amazonaws.com/XXX/XXX', data=json.dumps(myPostedData))
jsonresults = json.loads(res.content)

edited May 9, 2019 at 8:38

nekomatic

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answered May 7, 2019 at 11:36

Phil

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2 Comments

wildernessfamily Over a year ago

@nekomatic No, data=json.dumps(myPostedData) json.dumps does what @Phil states, serialize's the data.

nekomatic Over a year ago

@wildernessfamily it looks like I posted the comment first and then edited the answer, which made my comment obsolete (see the edit history). Thanks for pointing out the potential confusion! I've deleted the original comment now.

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