I am trying to use a Python code step to download an image in Zapier. Here is some sample code (but it doesn't seem to work):
r = requests.get('https://dummyimage.com/600x400/000/fff')
img = r.raw.read()
return {'image_data': img}
The error I get is
Runtime.MarshalError: Unable to marshal response: b'' is not JSON serializable
Does anyone know how I can use requests in a Python code step in Zapier to get an image? (I am trying to get the image and save it to Dropbox.) THANKS.
It looks like you need a json serializable object and not a binary object.
One way to convert your image to a string is to use base64 and then encode it:
Make the image serializable:
r = requests.get('https://dummyimage.com/600x400/000/fff')
img_serializable = base64.b64encode(r.content).decode('utf-8')
# check with json.dumps(img_serializable)
Now return {'image_data': img_serializable} should not give errors.
Recover image from string and save to file:
with open("imageToSave.png", "wb") as f:
f.write(base64.decodebytes(img_serializable.encode('utf-8')))
The same using codecs, that is part of the standard Python library:
r = requests.get('https://dummyimage.com/600x400/000/fff')
content = codecs.encode(r.content, encoding='base64')
img_serializable = codecs.decode(content,encoding='utf-8')
type(img_serializable)
# Out:
# str
with open("imageToSave3.png", "wb") as f:
f.write(codecs.decode(codecs.encode(img_serializable, encoding='utf-8'), \
encoding='base64'))
return {'image_data': img_serializable}) but in the next action step it is being saved to Dropbox as a text file. How do I make the action step understand that it is an image, so that an image is saved to Dropbox and not just a text file containing base64 text?