All Questions
Tagged with plutus smart-contract
145
questions
1
vote
0
answers
13
views
redeeming from PlutusV3 script fails
This is the code of my smart contract. It basically requires exactly 3 reference inputs to pass validation.
{-# LANGUAGE NoImplicitPrelude #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE ...
0
votes
0
answers
32
views
In which cases Plutus compiler is producing expensive code?
I have heard a couple of times, that is hard to make Plutus produce non-costly code, and one should consider writing scripts on a level with Plutarch's help instead. Still, I never get real reasons ...
- 121
2
votes
1
answer
62
views
How to handle sensitive data in smart contracts?
I'm interested in creating an escrow smart contract using Plutus, where a seller stores an encryption key in the Datum and sells it for a price. The key should only be accessible to a buyer who pays ...
0
votes
2
answers
152
views
Different types of Datums
I have a good understanding of the role of Datums in Cardano's Extended UTXO model, including their use in representing the state of a smart contract. However, I'm seeking further clarification on the ...
3
votes
2
answers
462
views
Can a smart contract execute itself automatically?
I was wondering wether a smart contract can execute automatically or not. For example, let's say I have a vesting contract that, when a certain deadline passes, automatically executes and send some ...
- 53
3
votes
2
answers
336
views
Which would be the future language for writing smart-contract?
As we might know well-known approaches for writing smart contracts on Cardano are using Plutus Tx or Marlowe based on specific requirements. However, according to the growth of the Cardano community, ...
- 125
0
votes
2
answers
83
views
playground-common package giving 'Failed to build scrypt-0.5.0' error
I'm trying to run my own little smart contract in the plutus-pioneer-program [fourth iteration] docker container and I'm having some problems. I've just added an extra folder alongside the other weeks....
- 25
1
vote
1
answer
23
views
how to use ownPubKey and RedeemerType and DatumType
My code is here.
{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE ...
- 31
2
votes
1
answer
26
views
Expecting one more argument to ‘RedeemerType’
My code is here
marketConstraints :: Market -> TxConstraints (RedeemerType -> ScriptContext -> Bool) (DatumType, ())
marketConstraints market = mustValidateIn (to $ scriptAddress market)
I ...
- 31
1
vote
0
answers
24
views
PlutusTx TxInfo Type Mismatch
I am building a PlutusTx V1 Smart Contract for NFT Royalty distribution. Part of that requires totaling up the amount of Lovelace sent to the contract from the most recent tx. I came up with the ...
- 11
0
votes
1
answer
87
views
Limit the number for each Token (AssetName) within one Currency Symbol (Policy ID)
is there any way to limit number for each tokens within one minting policy, in Plutus validator?
For example for policy ab12 I want to allow users minting tokens, in different transactions. Сan the ...
- 45
1
vote
0
answers
16
views
Comparing VALUES in a smart contract. How to know if they will be normalized or not?
I need to make VALUES comparisons on chain.
I realized that if a use the (==) operator from Plutus it is very inefficient in matter of memory and cpu steps needed to compute.
(https://github.com/input-...
- 180
0
votes
1
answer
82
views
Need to Retrieve Info from (NFT)Assets in Policy ID to see if they are in a Plutus Contract (smart contract) or Not using Blockfrost API
I have a python script that retrieves the NFT asset name, and addresses of a specific policy ID using blockfrost API. Now I need to amend the script to add to the csv whether or not the specific asset ...
- 3
0
votes
3
answers
141
views
"The second data argument, does not decode to a context" when minting NFT with Mesh
This my script for minting NFT:
{-# INLINABLE mkPolicy #-}
mkPolicy :: BuiltinData -> PlutusV2.ScriptContext -> Bool
mkPolicy _ ctx = traceIfFalse "wrong amount minted" checkNFTAmount
...
0
votes
1
answer
202
views
How to resolve this "(FromAlonzoUtxoFail (UtxosFailure (ValidationTagMismatch (IsValid True)" transaction submission error on mesh library
I am getting this error on transaction submission.
""transaction submit error ShelleyTxValidationError ShelleyBasedEraBabbage (ApplyTxError [UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (...
- 29