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Merge branch 'solutions'
This commit is contained in:
Lars Brünjes
commit
9ceb857686
14 changed files with 1102 additions and 0 deletions
12
README.md
12
README.md
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@ -30,12 +30,19 @@
|
||||||
- The `EmulatorTrace`-monad.
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- The `EmulatorTrace`-monad.
|
||||||
- The `Contract`-monad.
|
- The `Contract`-monad.
|
||||||
|
|
||||||
|
- [Lecture #5](https://youtu.be/SsaVjSsPPcg)
|
||||||
|
|
||||||
|
- Values.
|
||||||
|
- Native Tokens.
|
||||||
|
- NFT's.
|
||||||
|
|
||||||
## Code Examples
|
## Code Examples
|
||||||
|
|
||||||
- Lecture #1: [English Auction](code/week01)
|
- Lecture #1: [English Auction](code/week01)
|
||||||
- Lecture #2: [Simple validation](code/week02)
|
- Lecture #2: [Simple validation](code/week02)
|
||||||
- Lecture #3: [Script Context & Parameterized Contracts](code/week03)
|
- Lecture #3: [Script Context & Parameterized Contracts](code/week03)
|
||||||
- Lecture #4: [Monad, Traces & Contracts](code/week04)
|
- Lecture #4: [Monad, Traces & Contracts](code/week04)
|
||||||
|
- Lecture #5: [Native Tokens](code/week05)
|
||||||
|
|
||||||
## Exercises
|
## Exercises
|
||||||
|
|
||||||
|
|
@ -74,6 +81,11 @@
|
||||||
- Implement function `payTrace` in the [Homework](code/week04/src/Week04/Homework.hs) module.
|
- Implement function `payTrace` in the [Homework](code/week04/src/Week04/Homework.hs) module.
|
||||||
- Handle exceptions thrown by `submitTx` in function `payContract` in the same module.
|
- Handle exceptions thrown by `submitTx` in function `payContract` in the same module.
|
||||||
|
|
||||||
|
- Week #5
|
||||||
|
|
||||||
|
- Add a deadline to the minting policy in the [Homework1](code/week05/src/Week05/Homework1.hs) module.
|
||||||
|
- Fix the token name to the empty ByteString in the NFT contract in the [Homework2](code/week05/src/Week05/Homework2.hs) module.
|
||||||
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|
||||||
## Some Plutus Modules
|
## Some Plutus Modules
|
||||||
|
|
||||||
- [`Language.Marlowe.Semantics`](https://github.com/input-output-hk/plutus/blob/master/marlowe/src/Language/Marlowe/Semantics.hs), contains Marlowe types and semantics.
|
- [`Language.Marlowe.Semantics`](https://github.com/input-output-hk/plutus/blob/master/marlowe/src/Language/Marlowe/Semantics.hs), contains Marlowe types and semantics.
|
||||||
|
|
|
||||||
23
code/week05/.devcontainer/devcontainer.json
Normal file
23
code/week05/.devcontainer/devcontainer.json
Normal file
|
|
@ -0,0 +1,23 @@
|
||||||
|
{
|
||||||
|
"name": "Plutus Starter Project",
|
||||||
|
"image": "plutus-devcontainer:latest",
|
||||||
|
|
||||||
|
"remoteUser": "plutus",
|
||||||
|
|
||||||
|
"mounts": [
|
||||||
|
// This shares cabal's remote repository state with the host. We don't mount the whole of '.cabal', because
|
||||||
|
// 1. '.cabal/config' contains absolute paths that will only make sense on the host, and
|
||||||
|
// 2. '.cabal/store' is not necessarily portable to different version of cabal etc.
|
||||||
|
"source=${localEnv:HOME}/.cabal/packages,target=/home/plutus/.cabal/packages,type=bind,consistency=cached",
|
||||||
|
],
|
||||||
|
|
||||||
|
"settings": {
|
||||||
|
// Note: don't change from bash so it runs .bashrc
|
||||||
|
"terminal.integrated.shell.linux": "/bin/bash"
|
||||||
|
},
|
||||||
|
|
||||||
|
// IDs of extensions inside container
|
||||||
|
"extensions": [
|
||||||
|
"haskell.haskell"
|
||||||
|
],
|
||||||
|
}
|
||||||
1
code/week05/.gitignore
vendored
Normal file
1
code/week05/.gitignore
vendored
Normal file
|
|
@ -0,0 +1 @@
|
||||||
|
dist-newstyle/
|
||||||
201
code/week05/LICENSE
Normal file
201
code/week05/LICENSE
Normal file
|
|
@ -0,0 +1,201 @@
|
||||||
|
Apache License
|
||||||
|
Version 2.0, January 2004
|
||||||
|
http://www.apache.org/licenses/
|
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|
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|
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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193
code/week05/cabal.project
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code/week05/cabal.project
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|
@ -0,0 +1,193 @@
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||||||
|
index-state: 2021-07-07T00:00:00Z
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|
||||||
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packages: ./.
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||||||
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-- You never, ever, want this.
|
||||||
|
write-ghc-environment-files: never
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||||||
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|
||||||
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-- Always build tests and benchmarks.
|
||||||
|
tests: true
|
||||||
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benchmarks: true
|
||||||
|
|
||||||
|
source-repository-package
|
||||||
|
type: git
|
||||||
|
location: https://github.com/input-output-hk/plutus.git
|
||||||
|
subdir:
|
||||||
|
freer-extras
|
||||||
|
playground-common
|
||||||
|
plutus-chain-index
|
||||||
|
plutus-core
|
||||||
|
plutus-contract
|
||||||
|
plutus-ledger
|
||||||
|
plutus-ledger-api
|
||||||
|
plutus-tx
|
||||||
|
plutus-tx-plugin
|
||||||
|
prettyprinter-configurable
|
||||||
|
quickcheck-dynamic
|
||||||
|
word-array
|
||||||
|
tag: 8f1a47674a99ac9bc2aba3231375d8d6de0641d2
|
||||||
|
|
||||||
|
-- The following sections are copied from the 'plutus' repository cabal.project at the revision
|
||||||
|
-- given above.
|
||||||
|
-- This is necessary because the 'plutus' libraries depend on a number of other libraries which are
|
||||||
|
-- not on Hackage, and so need to be pulled in as `source-repository-package`s themselves. Make sure to
|
||||||
|
-- re-update this section from the template when you do an upgrade.
|
||||||
|
|
||||||
|
-- This is also needed so evenful-sql-common will build with a
|
||||||
|
-- newer version of persistent. See stack.yaml for the mirrored
|
||||||
|
-- configuration.
|
||||||
|
package eventful-sql-common
|
||||||
|
ghc-options: -XDerivingStrategies -XStandaloneDeriving -XUndecidableInstances -XDataKinds -XFlexibleInstances -XMultiParamTypeClasses
|
||||||
|
|
||||||
|
allow-newer:
|
||||||
|
-- Pins to an old version of Template Haskell, unclear if/when it will be updated
|
||||||
|
size-based:template-haskell
|
||||||
|
|
||||||
|
-- The following two dependencies are needed by plutus.
|
||||||
|
, eventful-sql-common:persistent
|
||||||
|
, eventful-sql-common:persistent-template
|
||||||
|
, ouroboros-consensus-byron:formatting
|
||||||
|
, beam-core:aeson
|
||||||
|
, beam-sqlite:aeson
|
||||||
|
, beam-sqlite:dlist
|
||||||
|
, beam-migrate:aeson
|
||||||
|
|
||||||
|
constraints:
|
||||||
|
-- big breaking change here, inline-r doens't have an upper bound
|
||||||
|
singletons < 3.0
|
||||||
|
-- breaks eventful even more than it already was
|
||||||
|
, persistent-template < 2.12
|
||||||
|
-- bizarre issue: in earlier versions they define their own 'GEq', in newer
|
||||||
|
-- ones they reuse the one from 'some', but there isn't e.g. a proper version
|
||||||
|
-- constraint from dependent-sum-template (which is the library we actually use).
|
||||||
|
, dependent-sum > 0.6.2.0
|
||||||
|
|
||||||
|
-- See the note on nix/pkgs/default.nix:agdaPackages for why this is here.
|
||||||
|
-- (NOTE this will change to ieee754 in newer versions of nixpkgs).
|
||||||
|
extra-packages: ieee, filemanip
|
||||||
|
|
||||||
|
-- Drops an instance breaking our code. Should be released to Hackage eventually.
|
||||||
|
source-repository-package
|
||||||
|
type: git
|
||||||
|
location: https://github.com/Quid2/flat.git
|
||||||
|
tag: 95e5d7488451e43062ca84d5376b3adcc465f1cd
|
||||||
|
|
||||||
|
-- Needs some patches, but upstream seems to be fairly dead (no activity in > 1 year)
|
||||||
|
source-repository-package
|
||||||
|
type: git
|
||||||
|
location: https://github.com/shmish111/purescript-bridge.git
|
||||||
|
tag: 6a92d7853ea514be8b70bab5e72077bf5a510596
|
||||||
|
|
||||||
|
source-repository-package
|
||||||
|
type: git
|
||||||
|
location: https://github.com/shmish111/servant-purescript.git
|
||||||
|
tag: a76104490499aa72d40c2790d10e9383e0dbde63
|
||||||
|
|
||||||
|
source-repository-package
|
||||||
|
type: git
|
||||||
|
location: https://github.com/input-output-hk/cardano-crypto.git
|
||||||
|
tag: ce8f1934e4b6252084710975bd9bbc0a4648ece4
|
||||||
|
|
||||||
|
source-repository-package
|
||||||
|
type: git
|
||||||
|
location: https://github.com/input-output-hk/cardano-base
|
||||||
|
tag: a715c7f420770b70bbe95ca51d3dec83866cb1bd
|
||||||
|
subdir:
|
||||||
|
binary
|
||||||
|
binary/test
|
||||||
|
slotting
|
||||||
|
cardano-crypto-class
|
||||||
|
cardano-crypto-praos
|
||||||
|
cardano-crypto-tests
|
||||||
|
strict-containers
|
||||||
|
|
||||||
|
source-repository-package
|
||||||
|
type: git
|
||||||
|
location: https://github.com/input-output-hk/cardano-prelude
|
||||||
|
tag: fd773f7a58412131512b9f694ab95653ac430852
|
||||||
|
subdir:
|
||||||
|
cardano-prelude
|
||||||
|
cardano-prelude-test
|
||||||
|
|
||||||
|
source-repository-package
|
||||||
|
type: git
|
||||||
|
location: https://github.com/input-output-hk/ouroboros-network
|
||||||
|
tag: e338f2cf8e1078fbda9555dd2b169c6737ef6774
|
||||||
|
subdir:
|
||||||
|
monoidal-synchronisation
|
||||||
|
typed-protocols
|
||||||
|
typed-protocols-examples
|
||||||
|
ouroboros-network
|
||||||
|
ouroboros-network-testing
|
||||||
|
ouroboros-network-framework
|
||||||
|
ouroboros-consensus
|
||||||
|
ouroboros-consensus-byron
|
||||||
|
ouroboros-consensus-cardano
|
||||||
|
ouroboros-consensus-shelley
|
||||||
|
io-sim
|
||||||
|
io-classes
|
||||||
|
network-mux
|
||||||
|
|
||||||
|
source-repository-package
|
||||||
|
type: git
|
||||||
|
location: https://github.com/input-output-hk/iohk-monitoring-framework
|
||||||
|
tag: 34abfb7f4f5610cabb45396e0496472446a0b2ca
|
||||||
|
subdir:
|
||||||
|
iohk-monitoring
|
||||||
|
tracer-transformers
|
||||||
|
contra-tracer
|
||||||
|
plugins/backend-aggregation
|
||||||
|
plugins/backend-ekg
|
||||||
|
plugins/backend-monitoring
|
||||||
|
plugins/backend-trace-forwarder
|
||||||
|
plugins/scribe-systemd
|
||||||
|
|
||||||
|
source-repository-package
|
||||||
|
type: git
|
||||||
|
location: https://github.com/input-output-hk/cardano-ledger-specs
|
||||||
|
tag: 6b0fca7a73c317f3af7c14dd4dc38178cc78a6c8
|
||||||
|
subdir:
|
||||||
|
byron/chain/executable-spec
|
||||||
|
byron/crypto
|
||||||
|
byron/crypto/test
|
||||||
|
byron/ledger/executable-spec
|
||||||
|
byron/ledger/impl
|
||||||
|
byron/ledger/impl/test
|
||||||
|
semantics/executable-spec
|
||||||
|
semantics/small-steps-test
|
||||||
|
shelley/chain-and-ledger/dependencies/non-integer
|
||||||
|
shelley/chain-and-ledger/executable-spec
|
||||||
|
shelley/chain-and-ledger/shelley-spec-ledger-test
|
||||||
|
shelley-ma/impl
|
||||||
|
cardano-ledger-core
|
||||||
|
alonzo/impl
|
||||||
|
|
||||||
|
-- A lot of plutus dependencies have to be synchronized with the dependencies of
|
||||||
|
-- cardano-node. If you update cardano-node, please make sure that all dependencies
|
||||||
|
-- of cardano-node are also updated.
|
||||||
|
source-repository-package
|
||||||
|
type: git
|
||||||
|
location: https://github.com/input-output-hk/cardano-node.git
|
||||||
|
tag: f3ef4ed72894499160f2330b91572a159005c148
|
||||||
|
subdir:
|
||||||
|
cardano-api
|
||||||
|
cardano-node
|
||||||
|
cardano-cli
|
||||||
|
cardano-config
|
||||||
|
|
||||||
|
source-repository-package
|
||||||
|
type: git
|
||||||
|
location: https://github.com/input-output-hk/Win32-network
|
||||||
|
tag: 94153b676617f8f33abe8d8182c37377d2784bd1
|
||||||
|
|
||||||
|
source-repository-package
|
||||||
|
type: git
|
||||||
|
location: https://github.com/input-output-hk/hedgehog-extras
|
||||||
|
tag: 8bcd3c9dc22cc44f9fcfe161f4638a384fc7a187
|
||||||
|
|
||||||
|
-- The following dependencies are not mirrored in the
|
||||||
|
-- stack.yaml file, but they are needed regardless by cabal.
|
||||||
|
source-repository-package
|
||||||
|
type: git
|
||||||
|
location: https://github.com/input-output-hk/goblins
|
||||||
|
tag: cde90a2b27f79187ca8310b6549331e59595e7ba
|
||||||
4
code/week05/hie.yaml
Normal file
4
code/week05/hie.yaml
Normal file
|
|
@ -0,0 +1,4 @@
|
||||||
|
cradle:
|
||||||
|
cabal:
|
||||||
|
- path: "./src"
|
||||||
|
component: "lib:plutus-pioneer-program-week05"
|
||||||
33
code/week05/plutus-pioneer-program-week05.cabal
Normal file
33
code/week05/plutus-pioneer-program-week05.cabal
Normal file
|
|
@ -0,0 +1,33 @@
|
||||||
|
Cabal-Version: 2.4
|
||||||
|
Name: plutus-pioneer-program-week05
|
||||||
|
Version: 0.1.0.0
|
||||||
|
Author: Lars Bruenjes
|
||||||
|
Maintainer: brunjlar@gmail.com
|
||||||
|
Build-Type: Simple
|
||||||
|
Copyright: © 2021 Lars Bruenjes
|
||||||
|
License: Apache-2.0
|
||||||
|
License-files: LICENSE
|
||||||
|
|
||||||
|
library
|
||||||
|
hs-source-dirs: src
|
||||||
|
exposed-modules: Week05.Free
|
||||||
|
, Week05.Homework1
|
||||||
|
, Week05.Homework2
|
||||||
|
, Week05.NFT
|
||||||
|
, Week05.Signed
|
||||||
|
, Week05.Solution1
|
||||||
|
, Week05.Solution2
|
||||||
|
build-depends: aeson
|
||||||
|
, base ^>=4.14.1.0
|
||||||
|
, containers
|
||||||
|
, data-default
|
||||||
|
, freer-extras
|
||||||
|
, playground-common
|
||||||
|
, plutus-contract
|
||||||
|
, plutus-ledger
|
||||||
|
, plutus-ledger-api
|
||||||
|
, plutus-tx-plugin
|
||||||
|
, plutus-tx
|
||||||
|
, text
|
||||||
|
default-language: Haskell2010
|
||||||
|
ghc-options: -Wall -fobject-code -fno-ignore-interface-pragmas -fno-omit-interface-pragmas -fno-strictness -fno-spec-constr -fno-specialise
|
||||||
88
code/week05/src/Week05/Free.hs
Normal file
88
code/week05/src/Week05/Free.hs
Normal file
|
|
@ -0,0 +1,88 @@
|
||||||
|
{-# LANGUAGE DataKinds #-}
|
||||||
|
{-# LANGUAGE DeriveAnyClass #-}
|
||||||
|
{-# LANGUAGE DeriveGeneric #-}
|
||||||
|
{-# LANGUAGE FlexibleContexts #-}
|
||||||
|
{-# LANGUAGE NoImplicitPrelude #-}
|
||||||
|
{-# LANGUAGE OverloadedStrings #-}
|
||||||
|
{-# LANGUAGE ScopedTypeVariables #-}
|
||||||
|
{-# LANGUAGE TemplateHaskell #-}
|
||||||
|
{-# LANGUAGE TypeApplications #-}
|
||||||
|
{-# LANGUAGE TypeFamilies #-}
|
||||||
|
{-# LANGUAGE TypeOperators #-}
|
||||||
|
|
||||||
|
module Week05.Free where
|
||||||
|
|
||||||
|
import Control.Monad hiding (fmap)
|
||||||
|
import Data.Aeson (ToJSON, FromJSON)
|
||||||
|
import Data.Text (Text)
|
||||||
|
import Data.Void (Void)
|
||||||
|
import GHC.Generics (Generic)
|
||||||
|
import Plutus.Contract as Contract
|
||||||
|
import Plutus.Trace.Emulator as Emulator
|
||||||
|
import qualified PlutusTx
|
||||||
|
import PlutusTx.Prelude hiding (Semigroup(..), unless)
|
||||||
|
import Ledger hiding (mint, singleton)
|
||||||
|
import Ledger.Constraints as Constraints
|
||||||
|
import qualified Ledger.Typed.Scripts as Scripts
|
||||||
|
import Ledger.Value as Value
|
||||||
|
import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage, ToSchema)
|
||||||
|
import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
|
||||||
|
import Playground.Types (KnownCurrency (..))
|
||||||
|
import Prelude (IO, Show (..), String)
|
||||||
|
import Text.Printf (printf)
|
||||||
|
import Wallet.Emulator.Wallet
|
||||||
|
|
||||||
|
{-# INLINABLE mkPolicy #-}
|
||||||
|
mkPolicy :: () -> ScriptContext -> Bool
|
||||||
|
mkPolicy () _ = True
|
||||||
|
|
||||||
|
policy :: Scripts.MintingPolicy
|
||||||
|
policy = mkMintingPolicyScript $$(PlutusTx.compile [|| Scripts.wrapMintingPolicy mkPolicy ||])
|
||||||
|
|
||||||
|
curSymbol :: CurrencySymbol
|
||||||
|
curSymbol = scriptCurrencySymbol policy
|
||||||
|
|
||||||
|
data MintParams = MintParams
|
||||||
|
{ mpTokenName :: !TokenName
|
||||||
|
, mpAmount :: !Integer
|
||||||
|
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||||
|
|
||||||
|
type FreeSchema = Endpoint "mint" MintParams
|
||||||
|
|
||||||
|
mint :: MintParams -> Contract w FreeSchema Text ()
|
||||||
|
mint mp = do
|
||||||
|
let val = Value.singleton curSymbol (mpTokenName mp) (mpAmount mp)
|
||||||
|
lookups = Constraints.mintingPolicy policy
|
||||||
|
tx = Constraints.mustMintValue val
|
||||||
|
ledgerTx <- submitTxConstraintsWith @Void lookups tx
|
||||||
|
void $ awaitTxConfirmed $ txId ledgerTx
|
||||||
|
Contract.logInfo @String $ printf "forged %s" (show val)
|
||||||
|
|
||||||
|
endpoints :: Contract () FreeSchema Text ()
|
||||||
|
endpoints = mint' >> endpoints
|
||||||
|
where
|
||||||
|
mint' = endpoint @"mint" >>= mint
|
||||||
|
|
||||||
|
mkSchemaDefinitions ''FreeSchema
|
||||||
|
|
||||||
|
mkKnownCurrencies []
|
||||||
|
|
||||||
|
test :: IO ()
|
||||||
|
test = runEmulatorTraceIO $ do
|
||||||
|
let tn = "ABC"
|
||||||
|
h1 <- activateContractWallet (Wallet 1) endpoints
|
||||||
|
h2 <- activateContractWallet (Wallet 2) endpoints
|
||||||
|
callEndpoint @"mint" h1 $ MintParams
|
||||||
|
{ mpTokenName = tn
|
||||||
|
, mpAmount = 555
|
||||||
|
}
|
||||||
|
callEndpoint @"mint" h2 $ MintParams
|
||||||
|
{ mpTokenName = tn
|
||||||
|
, mpAmount = 444
|
||||||
|
}
|
||||||
|
void $ Emulator.waitNSlots 1
|
||||||
|
callEndpoint @"mint" h1 $ MintParams
|
||||||
|
{ mpTokenName = tn
|
||||||
|
, mpAmount = -222
|
||||||
|
}
|
||||||
|
void $ Emulator.waitNSlots 1
|
||||||
98
code/week05/src/Week05/Homework1.hs
Normal file
98
code/week05/src/Week05/Homework1.hs
Normal file
|
|
@ -0,0 +1,98 @@
|
||||||
|
{-# LANGUAGE DataKinds #-}
|
||||||
|
{-# LANGUAGE DeriveAnyClass #-}
|
||||||
|
{-# LANGUAGE DeriveGeneric #-}
|
||||||
|
{-# LANGUAGE FlexibleContexts #-}
|
||||||
|
{-# LANGUAGE NoImplicitPrelude #-}
|
||||||
|
{-# LANGUAGE OverloadedStrings #-}
|
||||||
|
{-# LANGUAGE ScopedTypeVariables #-}
|
||||||
|
{-# LANGUAGE TemplateHaskell #-}
|
||||||
|
{-# LANGUAGE TypeApplications #-}
|
||||||
|
{-# LANGUAGE TypeFamilies #-}
|
||||||
|
{-# LANGUAGE TypeOperators #-}
|
||||||
|
|
||||||
|
module Week05.Homework1 where
|
||||||
|
|
||||||
|
import Control.Monad hiding (fmap)
|
||||||
|
import Control.Monad.Freer.Extras as Extras
|
||||||
|
import Data.Aeson (ToJSON, FromJSON)
|
||||||
|
import Data.Default (Default (..))
|
||||||
|
import Data.Text (Text)
|
||||||
|
import Data.Void (Void)
|
||||||
|
import GHC.Generics (Generic)
|
||||||
|
import Plutus.Contract as Contract
|
||||||
|
import Plutus.Trace.Emulator as Emulator
|
||||||
|
import qualified PlutusTx
|
||||||
|
import PlutusTx.Prelude hiding (Semigroup(..), unless)
|
||||||
|
import Ledger hiding (mint, singleton)
|
||||||
|
import Ledger.Constraints as Constraints
|
||||||
|
import Ledger.TimeSlot
|
||||||
|
import qualified Ledger.Typed.Scripts as Scripts
|
||||||
|
import Ledger.Value as Value
|
||||||
|
import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage, ToSchema)
|
||||||
|
import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
|
||||||
|
import Playground.Types (KnownCurrency (..))
|
||||||
|
import Prelude (IO, Semigroup (..), Show (..), String, undefined)
|
||||||
|
import Text.Printf (printf)
|
||||||
|
import Wallet.Emulator.Wallet
|
||||||
|
|
||||||
|
{-# INLINABLE mkPolicy #-}
|
||||||
|
-- This policy should only allow minting (or burning) of tokens if the owner of the specified PubKeyHash
|
||||||
|
-- has signed the transaction and if the specified deadline has not passed.
|
||||||
|
mkPolicy :: PubKeyHash -> POSIXTime -> () -> ScriptContext -> Bool
|
||||||
|
mkPolicy pkh deadline () ctx = True -- FIX ME!
|
||||||
|
|
||||||
|
policy :: PubKeyHash -> POSIXTime -> Scripts.MintingPolicy
|
||||||
|
policy pkh deadline = undefined -- IMPLEMENT ME!
|
||||||
|
|
||||||
|
curSymbol :: PubKeyHash -> POSIXTime -> CurrencySymbol
|
||||||
|
curSymbol pkh deadline = undefined -- IMPLEMENT ME!
|
||||||
|
|
||||||
|
data MintParams = MintParams
|
||||||
|
{ mpTokenName :: !TokenName
|
||||||
|
, mpDeadline :: !POSIXTime
|
||||||
|
, mpAmount :: !Integer
|
||||||
|
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||||
|
|
||||||
|
type SignedSchema = Endpoint "mint" MintParams
|
||||||
|
|
||||||
|
mint :: MintParams -> Contract w SignedSchema Text ()
|
||||||
|
mint mp = do
|
||||||
|
pkh <- pubKeyHash <$> Contract.ownPubKey
|
||||||
|
now <- Contract.currentTime
|
||||||
|
let deadline = mpDeadline mp
|
||||||
|
if now > deadline
|
||||||
|
then Contract.logError @String "deadline passed"
|
||||||
|
else do
|
||||||
|
let val = Value.singleton (curSymbol pkh deadline) (mpTokenName mp) (mpAmount mp)
|
||||||
|
lookups = Constraints.mintingPolicy $ policy pkh deadline
|
||||||
|
tx = Constraints.mustMintValue val <> Constraints.mustValidateIn (to $ now + 5000)
|
||||||
|
ledgerTx <- submitTxConstraintsWith @Void lookups tx
|
||||||
|
void $ awaitTxConfirmed $ txId ledgerTx
|
||||||
|
Contract.logInfo @String $ printf "forged %s" (show val)
|
||||||
|
|
||||||
|
endpoints :: Contract () SignedSchema Text ()
|
||||||
|
endpoints = mint' >> endpoints
|
||||||
|
where
|
||||||
|
mint' = endpoint @"mint" >>= mint
|
||||||
|
|
||||||
|
mkSchemaDefinitions ''SignedSchema
|
||||||
|
|
||||||
|
mkKnownCurrencies []
|
||||||
|
|
||||||
|
test :: IO ()
|
||||||
|
test = runEmulatorTraceIO $ do
|
||||||
|
let tn = "ABC"
|
||||||
|
deadline = slotToBeginPOSIXTime def 10
|
||||||
|
h <- activateContractWallet (Wallet 1) endpoints
|
||||||
|
callEndpoint @"mint" h $ MintParams
|
||||||
|
{ mpTokenName = tn
|
||||||
|
, mpDeadline = deadline
|
||||||
|
, mpAmount = 555
|
||||||
|
}
|
||||||
|
void $ Emulator.waitNSlots 15
|
||||||
|
callEndpoint @"mint" h $ MintParams
|
||||||
|
{ mpTokenName = tn
|
||||||
|
, mpDeadline = deadline
|
||||||
|
, mpAmount = 555
|
||||||
|
}
|
||||||
|
void $ Emulator.waitNSlots 1
|
||||||
66
code/week05/src/Week05/Homework2.hs
Normal file
66
code/week05/src/Week05/Homework2.hs
Normal file
|
|
@ -0,0 +1,66 @@
|
||||||
|
{-# LANGUAGE DataKinds #-}
|
||||||
|
{-# LANGUAGE DeriveAnyClass #-}
|
||||||
|
{-# LANGUAGE DeriveGeneric #-}
|
||||||
|
{-# LANGUAGE FlexibleContexts #-}
|
||||||
|
{-# LANGUAGE NoImplicitPrelude #-}
|
||||||
|
{-# LANGUAGE OverloadedStrings #-}
|
||||||
|
{-# LANGUAGE ScopedTypeVariables #-}
|
||||||
|
{-# LANGUAGE TemplateHaskell #-}
|
||||||
|
{-# LANGUAGE TypeApplications #-}
|
||||||
|
{-# LANGUAGE TypeFamilies #-}
|
||||||
|
{-# LANGUAGE TypeOperators #-}
|
||||||
|
|
||||||
|
module Week05.Homework2 where
|
||||||
|
|
||||||
|
import Control.Monad hiding (fmap)
|
||||||
|
import qualified Data.Map as Map
|
||||||
|
import Data.Text (Text)
|
||||||
|
import Data.Void (Void)
|
||||||
|
import Plutus.Contract as Contract
|
||||||
|
import Plutus.Trace.Emulator as Emulator
|
||||||
|
import qualified PlutusTx
|
||||||
|
import PlutusTx.Prelude hiding (Semigroup(..), unless)
|
||||||
|
import Ledger hiding (mint, singleton)
|
||||||
|
import Ledger.Constraints as Constraints
|
||||||
|
import qualified Ledger.Typed.Scripts as Scripts
|
||||||
|
import Ledger.Value as Value
|
||||||
|
import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage, ToSchema)
|
||||||
|
import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
|
||||||
|
import Playground.Types (KnownCurrency (..))
|
||||||
|
import Prelude (IO, Semigroup (..), Show (..), String, undefined)
|
||||||
|
import Text.Printf (printf)
|
||||||
|
import Wallet.Emulator.Wallet
|
||||||
|
|
||||||
|
{-# INLINABLE mkPolicy #-}
|
||||||
|
-- Minting policy for an NFT, where the minting transaction must consume the given UTxO as input
|
||||||
|
-- and where the TokenName will be the empty ByteString.
|
||||||
|
mkPolicy :: TxOutRef -> () -> ScriptContext -> Bool
|
||||||
|
mkPolicy oref () ctx = True -- FIX ME!
|
||||||
|
|
||||||
|
policy :: TxOutRef -> Scripts.MintingPolicy
|
||||||
|
policy oref = undefined -- IMPLEMENT ME!
|
||||||
|
|
||||||
|
curSymbol :: TxOutRef -> CurrencySymbol
|
||||||
|
curSymbol = undefined -- IMPLEMENT ME!
|
||||||
|
|
||||||
|
type NFTSchema = Endpoint "mint" ()
|
||||||
|
|
||||||
|
mint :: Contract w NFTSchema Text ()
|
||||||
|
mint = undefined -- IMPLEMENT ME!
|
||||||
|
|
||||||
|
endpoints :: Contract () NFTSchema Text ()
|
||||||
|
endpoints = mint' >> endpoints
|
||||||
|
where
|
||||||
|
mint' = endpoint @"mint" >> mint
|
||||||
|
|
||||||
|
mkSchemaDefinitions ''NFTSchema
|
||||||
|
|
||||||
|
mkKnownCurrencies []
|
||||||
|
|
||||||
|
test :: IO ()
|
||||||
|
test = runEmulatorTraceIO $ do
|
||||||
|
h1 <- activateContractWallet (Wallet 1) endpoints
|
||||||
|
h2 <- activateContractWallet (Wallet 2) endpoints
|
||||||
|
callEndpoint @"mint" h1 ()
|
||||||
|
callEndpoint @"mint" h2 ()
|
||||||
|
void $ Emulator.waitNSlots 1
|
||||||
93
code/week05/src/Week05/NFT.hs
Normal file
93
code/week05/src/Week05/NFT.hs
Normal file
|
|
@ -0,0 +1,93 @@
|
||||||
|
{-# LANGUAGE DataKinds #-}
|
||||||
|
{-# LANGUAGE DeriveAnyClass #-}
|
||||||
|
{-# LANGUAGE DeriveGeneric #-}
|
||||||
|
{-# LANGUAGE FlexibleContexts #-}
|
||||||
|
{-# LANGUAGE NoImplicitPrelude #-}
|
||||||
|
{-# LANGUAGE OverloadedStrings #-}
|
||||||
|
{-# LANGUAGE ScopedTypeVariables #-}
|
||||||
|
{-# LANGUAGE TemplateHaskell #-}
|
||||||
|
{-# LANGUAGE TypeApplications #-}
|
||||||
|
{-# LANGUAGE TypeFamilies #-}
|
||||||
|
{-# LANGUAGE TypeOperators #-}
|
||||||
|
|
||||||
|
module Week05.NFT where
|
||||||
|
|
||||||
|
import Control.Monad hiding (fmap)
|
||||||
|
import qualified Data.Map as Map
|
||||||
|
import Data.Text (Text)
|
||||||
|
import Data.Void (Void)
|
||||||
|
import Plutus.Contract as Contract
|
||||||
|
import Plutus.Trace.Emulator as Emulator
|
||||||
|
import qualified PlutusTx
|
||||||
|
import PlutusTx.Prelude hiding (Semigroup(..), unless)
|
||||||
|
import Ledger hiding (mint, singleton)
|
||||||
|
import Ledger.Constraints as Constraints
|
||||||
|
import qualified Ledger.Typed.Scripts as Scripts
|
||||||
|
import Ledger.Value as Value
|
||||||
|
import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage, ToSchema)
|
||||||
|
import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
|
||||||
|
import Playground.Types (KnownCurrency (..))
|
||||||
|
import Prelude (IO, Semigroup (..), Show (..), String)
|
||||||
|
import Text.Printf (printf)
|
||||||
|
import Wallet.Emulator.Wallet
|
||||||
|
|
||||||
|
{-# INLINABLE mkPolicy #-}
|
||||||
|
mkPolicy :: TxOutRef -> TokenName -> () -> ScriptContext -> Bool
|
||||||
|
mkPolicy oref tn () ctx = traceIfFalse "UTxO not consumed" hasUTxO &&
|
||||||
|
traceIfFalse "wrong amount minted" checkMintedAmount
|
||||||
|
where
|
||||||
|
info :: TxInfo
|
||||||
|
info = scriptContextTxInfo ctx
|
||||||
|
|
||||||
|
hasUTxO :: Bool
|
||||||
|
hasUTxO = any (\i -> txInInfoOutRef i == oref) $ txInfoInputs info
|
||||||
|
|
||||||
|
checkMintedAmount :: Bool
|
||||||
|
checkMintedAmount = case flattenValue (txInfoForge info) of
|
||||||
|
[(cs, tn', amt)] -> cs == ownCurrencySymbol ctx && tn' == tn && amt == 1
|
||||||
|
_ -> False
|
||||||
|
|
||||||
|
policy :: TxOutRef -> TokenName -> Scripts.MintingPolicy
|
||||||
|
policy oref tn = mkMintingPolicyScript $
|
||||||
|
$$(PlutusTx.compile [|| \oref' tn' -> Scripts.wrapMintingPolicy $ mkPolicy oref' tn' ||])
|
||||||
|
`PlutusTx.applyCode`
|
||||||
|
PlutusTx.liftCode oref
|
||||||
|
`PlutusTx.applyCode`
|
||||||
|
PlutusTx.liftCode tn
|
||||||
|
|
||||||
|
curSymbol :: TxOutRef -> TokenName -> CurrencySymbol
|
||||||
|
curSymbol oref tn = scriptCurrencySymbol $ policy oref tn
|
||||||
|
|
||||||
|
type NFTSchema = Endpoint "mint" TokenName
|
||||||
|
|
||||||
|
mint :: TokenName -> Contract w NFTSchema Text ()
|
||||||
|
mint tn = do
|
||||||
|
pk <- Contract.ownPubKey
|
||||||
|
utxos <- utxoAt (pubKeyAddress pk)
|
||||||
|
case Map.keys utxos of
|
||||||
|
[] -> Contract.logError @String "no utxo found"
|
||||||
|
oref : _ -> do
|
||||||
|
let val = Value.singleton (curSymbol oref tn) tn 1
|
||||||
|
lookups = Constraints.mintingPolicy (policy oref tn) <> Constraints.unspentOutputs utxos
|
||||||
|
tx = Constraints.mustMintValue val <> Constraints.mustSpendPubKeyOutput oref
|
||||||
|
ledgerTx <- submitTxConstraintsWith @Void lookups tx
|
||||||
|
void $ awaitTxConfirmed $ txId ledgerTx
|
||||||
|
Contract.logInfo @String $ printf "forged %s" (show val)
|
||||||
|
|
||||||
|
endpoints :: Contract () NFTSchema Text ()
|
||||||
|
endpoints = mint' >> endpoints
|
||||||
|
where
|
||||||
|
mint' = endpoint @"mint" >>= mint
|
||||||
|
|
||||||
|
mkSchemaDefinitions ''NFTSchema
|
||||||
|
|
||||||
|
mkKnownCurrencies []
|
||||||
|
|
||||||
|
test :: IO ()
|
||||||
|
test = runEmulatorTraceIO $ do
|
||||||
|
let tn = "ABC"
|
||||||
|
h1 <- activateContractWallet (Wallet 1) endpoints
|
||||||
|
h2 <- activateContractWallet (Wallet 2) endpoints
|
||||||
|
callEndpoint @"mint" h1 tn
|
||||||
|
callEndpoint @"mint" h2 tn
|
||||||
|
void $ Emulator.waitNSlots 1
|
||||||
92
code/week05/src/Week05/Signed.hs
Normal file
92
code/week05/src/Week05/Signed.hs
Normal file
|
|
@ -0,0 +1,92 @@
|
||||||
|
{-# LANGUAGE DataKinds #-}
|
||||||
|
{-# LANGUAGE DeriveAnyClass #-}
|
||||||
|
{-# LANGUAGE DeriveGeneric #-}
|
||||||
|
{-# LANGUAGE FlexibleContexts #-}
|
||||||
|
{-# LANGUAGE NoImplicitPrelude #-}
|
||||||
|
{-# LANGUAGE OverloadedStrings #-}
|
||||||
|
{-# LANGUAGE ScopedTypeVariables #-}
|
||||||
|
{-# LANGUAGE TemplateHaskell #-}
|
||||||
|
{-# LANGUAGE TypeApplications #-}
|
||||||
|
{-# LANGUAGE TypeFamilies #-}
|
||||||
|
{-# LANGUAGE TypeOperators #-}
|
||||||
|
|
||||||
|
module Week05.Signed where
|
||||||
|
|
||||||
|
import Control.Monad hiding (fmap)
|
||||||
|
import Data.Aeson (ToJSON, FromJSON)
|
||||||
|
import Data.Text (Text)
|
||||||
|
import Data.Void (Void)
|
||||||
|
import GHC.Generics (Generic)
|
||||||
|
import Plutus.Contract as Contract
|
||||||
|
import Plutus.Trace.Emulator as Emulator
|
||||||
|
import qualified PlutusTx
|
||||||
|
import PlutusTx.Prelude hiding (Semigroup(..), unless)
|
||||||
|
import Ledger hiding (mint, singleton)
|
||||||
|
import Ledger.Constraints as Constraints
|
||||||
|
import qualified Ledger.Typed.Scripts as Scripts
|
||||||
|
import Ledger.Value as Value
|
||||||
|
import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage, ToSchema)
|
||||||
|
import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
|
||||||
|
import Playground.Types (KnownCurrency (..))
|
||||||
|
import Prelude (IO, Show (..), String)
|
||||||
|
import Text.Printf (printf)
|
||||||
|
import Wallet.Emulator.Wallet
|
||||||
|
|
||||||
|
{-# INLINABLE mkPolicy #-}
|
||||||
|
mkPolicy :: PubKeyHash -> () -> ScriptContext -> Bool
|
||||||
|
mkPolicy pkh () ctx = txSignedBy (scriptContextTxInfo ctx) pkh
|
||||||
|
|
||||||
|
policy :: PubKeyHash -> Scripts.MintingPolicy
|
||||||
|
policy pkh = mkMintingPolicyScript $
|
||||||
|
$$(PlutusTx.compile [|| Scripts.wrapMintingPolicy . mkPolicy ||])
|
||||||
|
`PlutusTx.applyCode`
|
||||||
|
(PlutusTx.liftCode pkh)
|
||||||
|
|
||||||
|
curSymbol :: PubKeyHash -> CurrencySymbol
|
||||||
|
curSymbol = scriptCurrencySymbol . policy
|
||||||
|
|
||||||
|
data MintParams = MintParams
|
||||||
|
{ mpTokenName :: !TokenName
|
||||||
|
, mpAmount :: !Integer
|
||||||
|
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||||
|
|
||||||
|
type SignedSchema = Endpoint "mint" MintParams
|
||||||
|
|
||||||
|
mint :: MintParams -> Contract w SignedSchema Text ()
|
||||||
|
mint mp = do
|
||||||
|
pkh <- pubKeyHash <$> Contract.ownPubKey
|
||||||
|
let val = Value.singleton (curSymbol pkh) (mpTokenName mp) (mpAmount mp)
|
||||||
|
lookups = Constraints.mintingPolicy $ policy pkh
|
||||||
|
tx = Constraints.mustMintValue val
|
||||||
|
ledgerTx <- submitTxConstraintsWith @Void lookups tx
|
||||||
|
void $ awaitTxConfirmed $ txId ledgerTx
|
||||||
|
Contract.logInfo @String $ printf "forged %s" (show val)
|
||||||
|
|
||||||
|
endpoints :: Contract () SignedSchema Text ()
|
||||||
|
endpoints = mint' >> endpoints
|
||||||
|
where
|
||||||
|
mint' = endpoint @"mint" >>= mint
|
||||||
|
|
||||||
|
mkSchemaDefinitions ''SignedSchema
|
||||||
|
|
||||||
|
mkKnownCurrencies []
|
||||||
|
|
||||||
|
test :: IO ()
|
||||||
|
test = runEmulatorTraceIO $ do
|
||||||
|
let tn = "ABC"
|
||||||
|
h1 <- activateContractWallet (Wallet 1) endpoints
|
||||||
|
h2 <- activateContractWallet (Wallet 2) endpoints
|
||||||
|
callEndpoint @"mint" h1 $ MintParams
|
||||||
|
{ mpTokenName = tn
|
||||||
|
, mpAmount = 555
|
||||||
|
}
|
||||||
|
callEndpoint @"mint" h2 $ MintParams
|
||||||
|
{ mpTokenName = tn
|
||||||
|
, mpAmount = 444
|
||||||
|
}
|
||||||
|
void $ Emulator.waitNSlots 1
|
||||||
|
callEndpoint @"mint" h1 $ MintParams
|
||||||
|
{ mpTokenName = tn
|
||||||
|
, mpAmount = -222
|
||||||
|
}
|
||||||
|
void $ Emulator.waitNSlots 1
|
||||||
104
code/week05/src/Week05/Solution1.hs
Normal file
104
code/week05/src/Week05/Solution1.hs
Normal file
|
|
@ -0,0 +1,104 @@
|
||||||
|
{-# LANGUAGE DataKinds #-}
|
||||||
|
{-# LANGUAGE DeriveAnyClass #-}
|
||||||
|
{-# LANGUAGE DeriveGeneric #-}
|
||||||
|
{-# LANGUAGE FlexibleContexts #-}
|
||||||
|
{-# LANGUAGE NoImplicitPrelude #-}
|
||||||
|
{-# LANGUAGE OverloadedStrings #-}
|
||||||
|
{-# LANGUAGE ScopedTypeVariables #-}
|
||||||
|
{-# LANGUAGE TemplateHaskell #-}
|
||||||
|
{-# LANGUAGE TypeApplications #-}
|
||||||
|
{-# LANGUAGE TypeFamilies #-}
|
||||||
|
{-# LANGUAGE TypeOperators #-}
|
||||||
|
|
||||||
|
module Week05.Solution1 where
|
||||||
|
|
||||||
|
import Control.Monad hiding (fmap)
|
||||||
|
import Data.Aeson (ToJSON, FromJSON)
|
||||||
|
import Data.Default (Default (..))
|
||||||
|
import Data.Text (Text)
|
||||||
|
import Data.Void (Void)
|
||||||
|
import GHC.Generics (Generic)
|
||||||
|
import Plutus.Contract as Contract
|
||||||
|
import Plutus.Trace.Emulator as Emulator
|
||||||
|
import qualified PlutusTx
|
||||||
|
import PlutusTx.Prelude hiding (Semigroup(..), unless)
|
||||||
|
import Ledger hiding (mint, singleton)
|
||||||
|
import Ledger.Constraints as Constraints
|
||||||
|
import Ledger.TimeSlot
|
||||||
|
import qualified Ledger.Typed.Scripts as Scripts
|
||||||
|
import Ledger.Value as Value
|
||||||
|
import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage, ToSchema)
|
||||||
|
import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
|
||||||
|
import Playground.Types (KnownCurrency (..))
|
||||||
|
import Prelude (IO, Semigroup (..), Show (..), String)
|
||||||
|
import Text.Printf (printf)
|
||||||
|
import Wallet.Emulator.Wallet
|
||||||
|
|
||||||
|
{-# INLINABLE mkPolicy #-}
|
||||||
|
mkPolicy :: PubKeyHash -> POSIXTime -> () -> ScriptContext -> Bool
|
||||||
|
mkPolicy pkh deadline () ctx =
|
||||||
|
traceIfFalse "signature missing" (txSignedBy info pkh) &&
|
||||||
|
traceIfFalse "deadline missed" (to deadline `contains` txInfoValidRange info)
|
||||||
|
where
|
||||||
|
info = scriptContextTxInfo ctx
|
||||||
|
|
||||||
|
policy :: PubKeyHash -> POSIXTime -> Scripts.MintingPolicy
|
||||||
|
policy pkh deadline = mkMintingPolicyScript $
|
||||||
|
$$(PlutusTx.compile [|| \pkh' deadline' -> Scripts.wrapMintingPolicy $ mkPolicy pkh' deadline' ||])
|
||||||
|
`PlutusTx.applyCode`
|
||||||
|
PlutusTx.liftCode pkh
|
||||||
|
`PlutusTx.applyCode`
|
||||||
|
PlutusTx.liftCode deadline
|
||||||
|
|
||||||
|
curSymbol :: PubKeyHash -> POSIXTime -> CurrencySymbol
|
||||||
|
curSymbol pkh deadline = scriptCurrencySymbol $ policy pkh deadline
|
||||||
|
|
||||||
|
data MintParams = MintParams
|
||||||
|
{ mpTokenName :: !TokenName
|
||||||
|
, mpDeadline :: !POSIXTime
|
||||||
|
, mpAmount :: !Integer
|
||||||
|
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||||
|
|
||||||
|
type SignedSchema = Endpoint "mint" MintParams
|
||||||
|
|
||||||
|
mint :: MintParams -> Contract w SignedSchema Text ()
|
||||||
|
mint mp = do
|
||||||
|
pkh <- pubKeyHash <$> Contract.ownPubKey
|
||||||
|
now <- Contract.currentTime
|
||||||
|
let deadline = mpDeadline mp
|
||||||
|
if now > deadline
|
||||||
|
then Contract.logError @String "deadline passed"
|
||||||
|
else do
|
||||||
|
let val = Value.singleton (curSymbol pkh deadline) (mpTokenName mp) (mpAmount mp)
|
||||||
|
lookups = Constraints.mintingPolicy $ policy pkh deadline
|
||||||
|
tx = Constraints.mustMintValue val <> Constraints.mustValidateIn (to $ now + 5000)
|
||||||
|
ledgerTx <- submitTxConstraintsWith @Void lookups tx
|
||||||
|
void $ awaitTxConfirmed $ txId ledgerTx
|
||||||
|
Contract.logInfo @String $ printf "forged %s" (show val)
|
||||||
|
|
||||||
|
endpoints :: Contract () SignedSchema Text ()
|
||||||
|
endpoints = mint' >> endpoints
|
||||||
|
where
|
||||||
|
mint' = endpoint @"mint" >>= mint
|
||||||
|
|
||||||
|
mkSchemaDefinitions ''SignedSchema
|
||||||
|
|
||||||
|
mkKnownCurrencies []
|
||||||
|
|
||||||
|
test :: IO ()
|
||||||
|
test = runEmulatorTraceIO $ do
|
||||||
|
let tn = "ABC"
|
||||||
|
deadline = slotToBeginPOSIXTime def 10
|
||||||
|
h <- activateContractWallet (Wallet 1) endpoints
|
||||||
|
callEndpoint @"mint" h $ MintParams
|
||||||
|
{ mpTokenName = tn
|
||||||
|
, mpDeadline = deadline
|
||||||
|
, mpAmount = 555
|
||||||
|
}
|
||||||
|
void $ Emulator.waitNSlots 15
|
||||||
|
callEndpoint @"mint" h $ MintParams
|
||||||
|
{ mpTokenName = tn
|
||||||
|
, mpDeadline = deadline
|
||||||
|
, mpAmount = 555
|
||||||
|
}
|
||||||
|
void $ Emulator.waitNSlots 1
|
||||||
94
code/week05/src/Week05/Solution2.hs
Normal file
94
code/week05/src/Week05/Solution2.hs
Normal file
|
|
@ -0,0 +1,94 @@
|
||||||
|
{-# LANGUAGE DataKinds #-}
|
||||||
|
{-# LANGUAGE DeriveAnyClass #-}
|
||||||
|
{-# LANGUAGE DeriveGeneric #-}
|
||||||
|
{-# LANGUAGE FlexibleContexts #-}
|
||||||
|
{-# LANGUAGE NoImplicitPrelude #-}
|
||||||
|
{-# LANGUAGE OverloadedStrings #-}
|
||||||
|
{-# LANGUAGE ScopedTypeVariables #-}
|
||||||
|
{-# LANGUAGE TemplateHaskell #-}
|
||||||
|
{-# LANGUAGE TypeApplications #-}
|
||||||
|
{-# LANGUAGE TypeFamilies #-}
|
||||||
|
{-# LANGUAGE TypeOperators #-}
|
||||||
|
|
||||||
|
module Week05.Solution2 where
|
||||||
|
|
||||||
|
import Control.Monad hiding (fmap)
|
||||||
|
import qualified Data.Map as Map
|
||||||
|
import Data.Text (Text)
|
||||||
|
import Data.Void (Void)
|
||||||
|
import Plutus.Contract as Contract
|
||||||
|
import Plutus.Trace.Emulator as Emulator
|
||||||
|
import qualified PlutusTx
|
||||||
|
import PlutusTx.Prelude hiding (Semigroup(..), unless)
|
||||||
|
import Ledger hiding (mint, singleton)
|
||||||
|
import Ledger.Constraints as Constraints
|
||||||
|
import qualified Ledger.Typed.Scripts as Scripts
|
||||||
|
import Ledger.Value as Value
|
||||||
|
import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage, ToSchema)
|
||||||
|
import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
|
||||||
|
import Playground.Types (KnownCurrency (..))
|
||||||
|
import Prelude (IO, Semigroup (..), Show (..), String)
|
||||||
|
import Text.Printf (printf)
|
||||||
|
import Wallet.Emulator.Wallet
|
||||||
|
|
||||||
|
{-# INLINABLE tn #-}
|
||||||
|
tn :: TokenName
|
||||||
|
tn = TokenName emptyByteString
|
||||||
|
|
||||||
|
{-# INLINABLE mkPolicy #-}
|
||||||
|
mkPolicy :: TxOutRef -> () -> ScriptContext -> Bool
|
||||||
|
mkPolicy oref () ctx = traceIfFalse "UTxO not consumed" hasUTxO &&
|
||||||
|
traceIfFalse "wrong amount minted" checkMintedAmount
|
||||||
|
where
|
||||||
|
info :: TxInfo
|
||||||
|
info = scriptContextTxInfo ctx
|
||||||
|
|
||||||
|
hasUTxO :: Bool
|
||||||
|
hasUTxO = any (\i -> txInInfoOutRef i == oref) $ txInfoInputs info
|
||||||
|
|
||||||
|
checkMintedAmount :: Bool
|
||||||
|
checkMintedAmount = case flattenValue (txInfoForge info) of
|
||||||
|
[(cs, tn', amt)] -> cs == ownCurrencySymbol ctx && tn' == tn && amt == 1
|
||||||
|
_ -> False
|
||||||
|
|
||||||
|
policy :: TxOutRef -> Scripts.MintingPolicy
|
||||||
|
policy oref = mkMintingPolicyScript $
|
||||||
|
$$(PlutusTx.compile [|| Scripts.wrapMintingPolicy . mkPolicy ||])
|
||||||
|
`PlutusTx.applyCode`
|
||||||
|
PlutusTx.liftCode oref
|
||||||
|
|
||||||
|
curSymbol :: TxOutRef -> CurrencySymbol
|
||||||
|
curSymbol = scriptCurrencySymbol . policy
|
||||||
|
|
||||||
|
type NFTSchema = Endpoint "mint" ()
|
||||||
|
|
||||||
|
mint :: Contract w NFTSchema Text ()
|
||||||
|
mint = do
|
||||||
|
pk <- Contract.ownPubKey
|
||||||
|
utxos <- utxoAt (pubKeyAddress pk)
|
||||||
|
case Map.keys utxos of
|
||||||
|
[] -> Contract.logError @String "no utxo found"
|
||||||
|
oref : _ -> do
|
||||||
|
let val = Value.singleton (curSymbol oref) tn 1
|
||||||
|
lookups = Constraints.mintingPolicy (policy oref) <> Constraints.unspentOutputs utxos
|
||||||
|
tx = Constraints.mustMintValue val <> Constraints.mustSpendPubKeyOutput oref
|
||||||
|
ledgerTx <- submitTxConstraintsWith @Void lookups tx
|
||||||
|
void $ awaitTxConfirmed $ txId ledgerTx
|
||||||
|
Contract.logInfo @String $ printf "forged %s" (show val)
|
||||||
|
|
||||||
|
endpoints :: Contract () NFTSchema Text ()
|
||||||
|
endpoints = mint' >> endpoints
|
||||||
|
where
|
||||||
|
mint' = endpoint @"mint" >> mint
|
||||||
|
|
||||||
|
mkSchemaDefinitions ''NFTSchema
|
||||||
|
|
||||||
|
mkKnownCurrencies []
|
||||||
|
|
||||||
|
test :: IO ()
|
||||||
|
test = runEmulatorTraceIO $ do
|
||||||
|
h1 <- activateContractWallet (Wallet 1) endpoints
|
||||||
|
h2 <- activateContractWallet (Wallet 2) endpoints
|
||||||
|
callEndpoint @"mint" h1 ()
|
||||||
|
callEndpoint @"mint" h2 ()
|
||||||
|
void $ Emulator.waitNSlots 1
|
||||||
Loading…
Reference in a new issue