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anthonydouc/ptv_signature.py

Last active April 4, 2023 06:49
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PTV API signature generator code - Python 3
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ptv_signature.py
from hashlib import sha1
import hmac
def getUrl(request):
devId = 1000000
key = bytes('mykey','UTF-8')
request = request + ('&' if ('?' in request) else '?')
raw = bytes(request+'devid={0}'.format(devId),'UTF-8')
hashed = hmac.new(key, raw, sha1)
signature = hashed.hexdigest()
raw = str(raw,'UTF-8')
return 'http://timetableapi.ptv.vic.gov.au/'+raw+'&signature={1}'.format(devId, signature),'UTF-8'
request_url = '/v3/routes'
print(getUrl(request_url))
@jampola
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jampola commented Aug 14, 2020

Jesus Fucking Christ :)

Sorry, PTV’s explanation on how to calculate the signature truly sucked. I wasn’t far off though! Nonetheless, thanks mate, I owe you a beer.

@anthonydouc
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Ah yep, it made literally no sense - leading me to post this here in the off chance others struggled and found it.

@jampola
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jampola commented Aug 16, 2020 via email

@kongwak
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kongwak commented Apr 4, 2023

Thanks for this, I was really stuck.
One comment is that you can change line 14 to remove reference to "devID" as you already deal with it in line 9. eg
return 'http://timetableapi.ptv.vic.gov.au'+raw+'&signature={0}'.format(signature)
For me this removes a Type warning.

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