<h1 align="center">Static and Dynamic Application Call in Smart Contract</h1>
<p align="center" class="version">Version 0.1</p>
1. Introduction
| API | Return Value | Description |
|---|---|---|
| RegisterAppCall | function | call a smart contract statically |
| DynamicAppCall | depend on the calling function | call a smart contract dynamically |
For more details, you can view the API-doc and the source code here.
2. Static call
The contract A
from boa.interop.System.App import RegisterAppCall
from boa.interop.System.Runtime import Notify
HelloWorld = RegisterAppCall('5e8d6fddb980bd5b118c45d3ebff5c5f220fa2de', 'operation', 'args')
def Main(operation, args):
if operation == "CallHello":
msg=args[0]
return CallHello(msg)
return False
def CallHello(msg):
return HelloWorld("Hello", [msg])
The "Hello World " contract B invoked by contract A
from boa.interop.System.Runtime import Notify
def Main(operation, args):
if operation == 'Hello':
msg = args[0]
return Hello(msg)
return False
def Hello(msg):
return msg
3. Dynamic call
The contract A
from boa.interop.System.App import RegisterAppCall, DynamicAppCall
from boa.interop.System.Runtime import Log, Notify
CallContract = RegisterAppCall('5e8d6fddb980bd5b118c45d3ebff5c5f220fa2de', 'operation', 'args')
# dea20f225f5cffebd3458c115bbd80b9dd6f8d5e
def Main(operation, args):
if operation == "DynamicCallContract":
if len(args) != 3:
return False
revesedContractAddress = args[0]
opt = args[1]
params = args[2]
return DynamicCallContract(revesedContractAddress, opt, params)
if operation == "StaticCallContract":
opt = args[0]
params = args[1]
return StaticCallContract(opt,params)
return False
def DynamicCallContract(revesedContractAddress, operation, params):
res = DynamicAppCall(revesedContractAddress, operation, params)
Notify(["the result of the DynamicCall is: ", res])
return res
def StaticCallContract(opt, params):
res=CallContract(opt, params)
Notify(["the result of the StaticCall is: ", res])
return res
The "Hello World " contract B invoked by contract A
from boa.interop.System.Runtime import Notify
def Main(operation, args):
if operation == 'Hello':
msg = args[0]
return Hello(msg)
return False
def Hello(msg):
return msg
