Python Instawallet API

SUBMITTED BY: Guest

DATE: Oct. 11, 2012, 6:32 a.m.

FORMAT: Python

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  1. #!/usr/bin/env python
  2. # Pynstawallet 2: Python binding to Instawallet API
  3. # by Multiversum
  4. # Improvements:
  5. # - ability to create new wallet from a passphrase
  6. # - ability to get balance in BTC, not only Satoshis
  8. from requests import get, post
  9. from hashlib import sha256
  10. from base64 import b64encode
  12. instaweb_base = r'https://www.instawallet.org'
  13. instaapi_base = instaweb_base + r'/api/v1'
  15. def btcaddress(walletid):
  16. ''' Get Bitcoin address associated with private wallet ID '''
  17. resp = get(instaapi_base+'/w/'+walletid+'/address').json
  18. if resp:
  19. return resp['address']
  20. else:
  21. return None
  23. def passtoid(passphrase):
  24. ''' Convert (hash) your passphrase or password to the private Instawallet ID '''
  25. preid = b64encode(sha256(passphrase).digest()).strip('/=\\+')
  26. return filter(lambda x: x not in '/=\\+', preid)
  28. def new_wallet(passphrase=None):
  29. ''' Create a new wallet (automatically or from passphrase) and return its private wallet ID and public bitcoin address '''
  30. if passphrase:
  31. walletid = passtoid(passphrase)
  32. resp = get(instaweb_base+'/w/'+walletid)
  33. return walletid, btcaddress(walletid)
  34. else:
  35. resp = post(instaapi_base+'/new_wallet').json
  36. if resp:
  37. walletid = resp['wallet_id']
  38. return walletid, btcaddress(walletid)
  39. else:
  40. return None
  42. def balance(walletid):
  43. ''' Get your Instawallet balance in Satoshis by private wallet ID '''
  44. resp = get(instaapi_base+'/w/'+walletid+'/balance').json
  45. if resp:
  46. return resp['balance']
  47. else:
  48. return None
  50. def btcbalance(walletid):
  51. ''' Get your Instawallet balance in Bitcoins by private wallet ID '''
  52. satbalance = balance(walletid)
  53. if satbalance is not None:
  54. return satbalance/float(100000000.)
  55. else:
  56. return None
  58. def pay(walletid, dest_addr, amount):
  59. ''' Initiate a payment from wallet ID to destination Bitcoin address.
  60. The payment amount is in Satoshis.
  61. The function returns operation result code and message. '''
  62. params = { 'address' : dest_addr, 'amount' : amount }
  63. resp = post(instaapi_base+'/w/'+walletid+'/payment', data=params).json
  64. if resp:
  65. return resp['message_code'], resp['message']
  66. else:
  67. return -1, 'Unknown error'
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