STEP 2-UPDATE/CHANGE AN EXISTING UIA

adinda (43)in #bitshares • 8 years ago (edited)

A UIA can be modified by the issuer after creation. For this, a separated call update_asset has been created.

WHAT CAN AND CANNOT BE CHANGED (?)

Except for

Symbol
Precision,

every parameter, option or setting can be updates.

Note : Once a persmission is removed, it can not be re-enabled again!

PYTHON EXAMPLE

from grapheneapi import GrapheneClient

import json



perm = {}

perm["charge_market_fee"] = 0x01

perm["white_list"] = 0x02

perm["override_authority"] = 0x04

perm["transfer_restricted"] = 0x08

perm["disable_force_settle"] = 0x10

perm["global_settle"] = 0x20

perm["disable_confidential"] = 0x40

perm["witness_fed_asset"] = 0x80

perm["committee_fed_asset"] = 0x100





class Config():

    wallet_host           = "localhost"

    wallet_port           = 8092

    wallet_user           = ""

    wallet_password       = ""



if __name__ == '__main__':

    graphene = GrapheneClient(Config)



    permissions = {"charge_market_fee" : True,

                   "white_list" : True,

                   "override_authority" : True,

                   "transfer_restricted" : True,

                   "disable_force_settle" : True,

                   "global_settle" : True,

                   "disable_confidential" : True,

                   "witness_fed_asset" : True,

                   "committee_fed_asset" : True,

                   }

    flags       = {"charge_market_fee" : True,

                   "white_list" : True,

                   "override_authority" : True,

                   "transfer_restricted" : True,

                   "disable_force_settle" : True,

                   "global_settle" : False,

                   "disable_confidential" : True,

                   "witness_fed_asset" : False,

                   "committee_fed_asset" : True,

                   }

    permissions_int = 0

    for p in permissions :

        if permissions[p]:

            permissions_int += perm[p]

    flags_int = 0

    for p in permissions :

        if flags[p]:

            flags_int += perm[p]

    options = {"max_supply" : 100000000000,

               "market_fee_percent" : 0,

               "max_market_fee" : 0,

               "issuer_permissions" : permissions_int,

               "flags" : flags_int,

               "core_exchange_rate" : {

                   "base": {

                       "amount": 10,

                       "asset_id": "1.3.0"},

                   "quote": {

                       "amount": 10,

                       "asset_id": "1.3.1"}},

               "whitelist_authorities" : [],

               "blacklist_authorities" : [],

               "whitelist_markets" : [],

               "blacklist_markets" : [],

               "description" : "My fancy description 2"

               }



    tx = graphene.rpc.update_asset("SYMBOL", None, options, True)

    print(json.dumps(tx, indent=4))