gistfile1.txt

import os
import json
from bigchaindb_driver import BigchainDB
from bigchaindb_driver.crypto import generate_keypair

keyfile = 'keys.json'

bdb = BigchainDB( 'http://localhost:9984')

msg = '*'*100

if os.path.exists(keyfile):
    with open(keyfile) as fp:
        data = json.load(fp)
    public_key = data['public_key']
    private_key = data['private_key']
else:
    key = generate_keypair()
    with open(keyfile, 'w') as fp:
        json.dump(dict(private_key=key.private_key, public_key=key.public_key), fp)

for i in range(1000):
    print(i)

    tx = bdb.transactions.prepare(
        operation='CREATE',
        signers=public_key,
        asset={'data': {'message': msg + str(i)}})
    signed_tx = bdb.transactions.fulfill(
        tx,
        private_keys=private_key)
    bdb.transactions.send(signed_tx)
    
    
    
#real	0m17.866s
#user	0m7.307s
#sys	0m0.732s