Questions tagged [smartpy]
The smartpy tag has no usage guidance.
42
questions
1
vote
4answers
38 views
Is it possible to use natural logarithmic in your smartpy code?
If not,is there any alternative way to implement a natural log component into your smart contract code?
3
votes
1answer
50 views
Calling view of Fa1.2 contract
From my understanding, getBalance, getAllowance, getTotalSupply & getAdministrator entrypoint requires another contract to read the values. How will the entry point of the second contract look ...
1
vote
4answers
62 views
Is there a formula to build parameter messages to be passed to smart contract entrypoints?
When calling a smart contract entrypoint, it is required to pass the needed entrypoint parameters. This is done through a message that must be sent in JSON/Pairs format. My doubt is: Is there a ...
2
votes
1answer
28 views
How to get a contract storage data from another contract in smartPy?
I'm trying to access a storage data of a contract from another one using the continuous passing style in smartPy.
import smartpy as sp
class XXIFA12(sp.Contract):
def __init__(self, admin):
...
1
vote
2answers
40 views
How to get a contract storage data or call a “get” entrypoint from another contract in smartPy?
I want to interact with the FA12.py smart contract (https://smartpy.io/demo/index.html?template=FA1.2.py) and get the balance of a user, from another smart contract.
the FA12 function that I tried to ...
1
vote
3answers
18 views
How to delegate the balance of a smart contract?
I am looking to create a smart contact that will delegate the funds it is storing.
1) How does an originated KT address delegate to a baker?
2) If a KT address delegates, can it do anything else?
I ...
1
vote
1answer
13 views
Trouble with calling a function with parameters with Taquito
I'm trying to use taquito to call a method in my contract. Note my contract was programmed in SmartPy (if that makes any difference).
I am able to call contract.storage() without any problem.
When ...
1
vote
2answers
43 views
Send tezos to contract address after origination using conseiljs
I am trying to send tez from my tz1-AAA account to KT1-AAA contract address means I want my contract address to hold some tez.
Disclaimer - I have knowingly replaced some part of address with "....(s)...
2
votes
0answers
27 views
how can i call specific smartpy tezos contract entrypoint using ConseilJs?
I am trying to set UI that allow users to interact with tezos smart contract by pressing some buttons that have to call the corresponding function in the smart contract with relative arguments
1
vote
1answer
22 views
set a ui to allow to nodes interact via smartpy contract
Hii have wrote a smart contract using smartpy where i have two nodes that should interact with each other, now i want to set the user interface to simulate the nodes interact what should i use and ...
-1
votes
1answer
26 views
Encryption in smartpy tezos
I wanted to give encryption to a string before storing it in smart contract.
For example I have "hello" its 256 equivalent should be "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"
...
2
votes
1answer
27 views
Cyclic inter contract calling in smartpy
What I am trying to achieve is that, once I receive data from another contract my contract should return data after computation to same contract who has sent the data.
Computational Contract
import ...
5
votes
1answer
38 views
bigmap.get(key, “”) with default param in case of no entry for key in the map with Taquito
Can we do something similar to myMap.get(key, defaultValue = None) of smartPy with Taquito?
An instruction like:
const myContract = await Tezos.contract.at(contractAddress);
const contractStorage = ...
1
vote
1answer
50 views
sending data from one contract to another smartpy tezos
I am trying to send data from one contract to another in smartpy
Remote Contract
import smartpy as sp
class Try(sp.Contract):
def __init__(self):
self.init(mynum = sp.int(0))
@sp....
0
votes
0answers
30 views
Call one contract from another smartpy tezos [duplicate]
I am trying to call one contract from other.
Remote Contract
import smartpy as sp
class Try(sp.Contract):
def __init__(self):
self.init(mynum = sp.int(0))
@sp.entry_point
def ...
1
vote
1answer
33 views
Taquito default entrypoint not found
I have deployed a smart contract on carthagenet.
The contract only has a single entry point.
Taquito is not able to find that single entry point. I tried both default and root methods and it doesn'...
1
vote
1answer
10 views
Get current ChainId in smartPy contract
I'm trying to get the chain_id of the current chain evaluating a transaction or containing the smart contract with smartPy, but I got always error in init and in entrypoints when I try to affect the ...
2
votes
1answer
46 views
How do we use getBalance() function in FA1.2 token contract in SmartPy?
https://smartpy.io/demo/index.html?template=FA1.2.py&source=post_page---------------------------
This is the token contract link.
It is deployed on the https://babylonnet.SmartPy.io node with the ...
0
votes
2answers
51 views
how to transfer tezos to contract
I deployed a contract at babylonnet, source code is https://smartpy.io/demo/index.html?code=eJzVV22L3DYQ_r6_Qvg@xOaM2beQcODSvJAmDRtKbkkox2F0tnatnld2JTl7m5L89owkv0j2ZrMf2tIaDuzRaPTMM8@...
0
votes
2answers
27 views
Use lorentz to wrap my SmartPy contract to multisig failed
I write a simple contract at smarty ide, link.
And then I use lorentz-contract to wrap it to multi sig contract, but I meet an error:
0
votes
1answer
28 views
ill_typed_data and invalid_contract_notation smart contract deployment error
I'm trying to deploy a smart contract on the testnet. I have made sure it is well typed. But I faced the error message below when trying to deploy on both bablynonnet and carthagenet. Could someone ...
1
vote
3answers
42 views
Operation has injection no error but is not included
My contract is here
===
===
but not include
==
What's wrong! Please help me!
0
votes
1answer
32 views
Initiate a field in the storage of a contract with the source address of origination
I have the following smart contract where I pass admin address in the init function of the smart contract: (you can run it on smartPy online editor)
class SC(sp.Contract):
def __init__(self, ...
1
vote
1answer
35 views
How can I delay executing a smart contract until 30 minutes after its last invocation using Tezos SmartPy?
I have a function f1 in tezos contract that can be invoked by a node but after 30 min of the invocation if no other function f' has been invoked the f1 has to continue its process normally otherwise ...
1
vote
1answer
23 views
Parse address to string in smartPy
Can we parse a varialble of type sp.TAddress to sp.TString like this:
strAddress = sp.string(sp.address("tz1-add")) or strAddress = str(sp.address("tz1-add"))?
Smart Contract Example:
import ...
1
vote
1answer
22 views
Call a method with params that do nothing in a smart contract
I'm trying to invoke a method with parameters that do nothing (blank body) in a smart contract but that doesn't work even if the contract is correctly deployed to the blockchain.
Use case:
Smart ...
1
vote
1answer
72 views
Smart contract calls another smart contract's method with SmartPy
How can I call a smart contract method from another smart contract with smartPy?
Use Case:
Lest's imagine that we have:
Smart contract with a function increment(a)
Smart contract with a function ...
1
vote
1answer
27 views
sp.check_signature cryptographic function in SmartPy
I wanna ask about the parameters s and b in the cryptographic function:
sp.check_signature(k, s, b)
the second parameter s: is the string that we should inject in the blockchain or the signature ...
0
votes
0answers
44 views
UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'replace' of undefined at Object.normalizeMichelineWhiteSpace
When using conseiljs for deploying contracts the statement seems to have some error which is directly copied from the conseiljs library.
const result = await conseiljs.TezosNodeWriter....
1
vote
2answers
124 views
How to retrieve data from smart-contract using javascript?
I have stored data that I would like to retrieve from a deployed smart-contract.
The storage structure was defined using SmartPy:
def __init__(self):
self.init(bmap=sp.big_map(tkey=sp....
0
votes
1answer
49 views
Type error, (sp.TRecord(addr = sp.TAddress)) is not (sp.TUnit) in smartPy
When I implement a getBalance in the FA1.2 function like this:
@sp.entryPoint
def getBalance(self, params):
return self.data.balances[params.addr]
As test:
scenario += c1.getBalance(addr = ...
1
vote
1answer
28 views
venv / entrypoint return storage?
3 questions:
1) someone use Smartpy in a venv as a pip3 package? I was thinking about printing some variables for debug purposes — there is a similar feature in the editor?
2) if you are in a ...
1
vote
1answer
27 views
Local variables within smart contracts (Smartpy)
I'd like to share a question that were being worked on Smartpy telegram, and also a few thoughts along the way (it's a long way -- random observation).
Some people were talking about local variables ...
1
vote
1answer
49 views
How to interact with SmartPy BigMap in contract?
I would like to setup a smart contract that contains (as defined by smartpy) a BigMap storage.
I have the following code:
import smartpy as sp
class contract(sp.Contract):
def __init__(self):
...
2
votes
1answer
24 views
How to create a mapping in smartpy ? Do we need to define the datatypes of the key & value like in solidity?
Want to implement mappings like this in smartpy :
// Mapping from token ID to owner
mapping (uint256 => address) private _tokenOwner;
// Mapping from token ID to approved address
mapping (...
5
votes
2answers
74 views
How do I get a list of a Tezos smart contract KT1 address entrypoints and its parameters?
I wish to retrieve info from a KT1 address so I know which entrypoints are available for consuming and which are their parameters and types. How can I achieve this? Thanks in advance.
3
votes
4answers
146 views
Ethereum/Solidity dev here, looking to migrate some Solidity contracts onto Tezos. Was hoping to have some light shed on a few questions
Was hoping to have some light shed on a few questions.
Narrowing in on using Ligo, Archetype, or Liquidity.
Is Liquidity kind of a dead-end right now? I noticed it's not listed on developeres.tezos....
2
votes
1answer
153 views
How to deploy a smart contract influenced by UI inputs using ConseilJS and SmartPy generated Michelson?
I wish to be able to create a smart contract taking input from a UI to supply parameters pubKey,prvKey,pubHash for the deployment and minAmount and maxTime to influence the Michelson.
I have the ...
1
vote
2answers
34 views
How to total smartpy.TMutez type stored as values in smartpy.bigmap?
I have the following smartpy.bigmap in smart contract storage:
import smartpy as sp
self.data.init(bgmp=sp.bigmap(tkey=sp.TAddress,tvalue=sp.TMutez))
I would like to total all the stored tvalue so ...
2
votes
2answers
71 views
Tezos Blockchain Time in SmartPy
I am new to Tezos Block chain and I am writing a smart-contract for crowdfunding using smartPy.
For this I need current date time of Tezos Block chain. So, can anyone help me out, how to find out this?...
1
vote
0answers
15 views
Split function contract template
Is there a code template for a simple contract which splits the incoming funds and sends them proportionally to a list of pre-registered addresses?
Example:
Contract has the following functions:
...
1
vote
2answers
76 views
Where are the API docs for SmartPy?
I'm working on a contract now and specifically I'd like to call a SmartPy API like sp.transfer(address, amount)? Is there a function like this?
I can't find API docs for SmartPy and digging into the ...
