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Marlowe_Plutus_Pioneers_June_2021.pdf Normal file
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README.md
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- Property based testing with `QuickCheck`.
- Testing Plutus contracts with property based testing.
- [Lecture #9](https://youtu.be/-RpCqHuxfQQ)
- Marlowe overview ([slides](Marlowe_Plutus_Pioneers_June_2021.pdf)).
- Marlowe in Plutus.
- Marlowe Playground demo.
- [Lecture #10](https://youtu.be/Dg36h9YPMz4)
- Uniswap overview.
- Uniswap implementation in Plutus.
- Deploying Uniswap with the PAB.
- Demo.
- Using `curl` to interact with the PAB.
## Code Examples
- Lecture #1: [English Auction](code/week01)
- Lecture #2: [Simple Validation](code/week02)
- Lecture #3: [Validation Context & Parameterized Contracts](code/week03)
- Lecture #4: [Monads, `EmulatorTrace` & `Contract`](code/week04)
- Lecture #5: [Minting Policies](code/week05)
- Lecture #6: [Oracles](code/week06)
- Lecture #7: [State Machines](code/week07)
- Lecture #8: [Testing](code/week08)
- Lecture #1: [English Auction](code/week01)
- Lecture #2: [Simple Validation](code/week02)
- Lecture #3: [Validation Context & Parameterized Contracts](code/week03)
- Lecture #4: [Monads, `EmulatorTrace` & `Contract`](code/week04)
- Lecture #5: [Minting Policies](code/week05)
- Lecture #6: [Oracles](code/week06)
- Lecture #7: [State Machines](code/week07)
- Lecture #8: [Testing](code/week08)
- Lecture #9: [Marlowe](code/week09)
- Lecture #10: [Uniswap](code/week10)
## Exercises
@ -112,6 +128,15 @@
retrieve all remaining funds (including the NFT).
- Modify the tests accordingly.
- Week #9
- Modify the example Marlowe contract, so that Charlie must put down twice the deposit in the very beginning,
which gets split between Alice and Bob if Charlie refuses to make his choice.
- Week #10
- Get the Uniswap demo running and extend it in some way.
## Solutions
- Week #2
@ -150,9 +175,11 @@
## 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.
- [`Plutus.Contract.StateMachine`](https://github.com/input-output-hk/plutus/blob/master/plutus-contract/src/Plutus/Contract/StateMachine.hs), contains types and functions for using state machines.
- [`Plutus.Contract.Test`](https://github.com/input-output-hk/plutus/blob/master/plutus-contract/src/Plutus/Contract/Test.hs), provides various ways to write tests for Plutus contracts.
- [`Plutus.Contract.Test.ContractModel`](https://github.com/input-output-hk/plutus/blob/master/plutus-contract/src/Plutus/Contract/Test/ContractModel.hs), support for property based testing of Plutus contracts.
- [`Plutus.Contracts.Uniswap`](https://github.com/input-output-hk/plutus/blob/master/plutus-use-cases/src/Plutus/Contracts/Uniswap.hs), an implementation of Uniswap in Plutus.
- [`Plutus.PAB.Webserver.API`](https://github.com/input-output-hk/plutus/blob/master/plutus-pab/src/Plutus/PAB/Webserver/API.hs), contains the HTTP-interface provided by the PAB.
- [`Plutus.Trace.Emulator`](https://github.com/input-output-hk/plutus/blob/master/plutus-contract/src/Plutus/Trace/Emulator.hs), contains types and functions related to traces.
- [`Plutus.V1.Ledger.Ada`](https://github.com/input-output-hk/plutus/blob/master/plutus-ledger-api/src/Plutus/V1/Ledger/Ada.hs), contains support for the Ada currency.

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{
"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"
],
}

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code/week09/app/marlowe.hs Normal file
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{-# LANGUAGE OverloadedStrings #-}
import Language.Marlowe.Extended
main :: IO ()
main = print . pretty $ contract "Charles" "Simon" "Alex" $ Constant 100
choiceId :: Party -> ChoiceId
choiceId p = ChoiceId "Winner" p
contract :: Party -> Party -> Party -> Value -> Contract
contract alice bob charlie deposit =
When
[ f alice bob
, f bob alice
]
10 Close
where
f :: Party -> Party -> Case
f x y =
Case
(Deposit
x
x
ada
deposit
)
(When
[Case
(Deposit
y
y
ada
deposit
)
(When
[Case
(Choice
(choiceId charlie)
[Bound 1 2]
)
(If
(ValueEQ
(ChoiceValue $ choiceId charlie)
(Constant 1)
)
(Pay
bob
(Account alice)
ada
deposit
Close
)
(Pay
alice
(Account bob)
ada
deposit
Close
)
)]
30 Close
)]
20 Close
)

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index-state: 2021-04-13T00:00:00Z
packages: ./.
-- You never, ever, want this.
write-ghc-environment-files: never
-- Always build tests and benchmarks.
tests: true
benchmarks: true
source-repository-package
type: git
location: https://github.com/input-output-hk/plutus.git
subdir:
freer-extras
marlowe
playground-common
plutus-core
plutus-contract
plutus-ledger
plutus-ledger-api
plutus-pab
plutus-tx
plutus-tx-plugin
plutus-use-cases
prettyprinter-configurable
quickcheck-dynamic
tag: 13da6d416b2b47cdb6f287ff078b9e759bb90b7f
-- 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
allow-newer:
-- Has a commit to allow newer aeson, not on Hackage yet
monoidal-containers:aeson
-- 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
constraints:
-- aws-lambda-haskell-runtime-wai doesn't compile with newer versions
aws-lambda-haskell-runtime <= 3.0.3
-- 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
-- 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
-- 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: f73079303f663e028288f9f4a9e08bcca39a923e
source-repository-package
type: git
location: https://github.com/input-output-hk/cardano-base
tag: 4251c0bb6e4f443f00231d28f5f70d42876da055
subdir:
binary
binary/test
slotting
cardano-crypto-class
cardano-crypto-praos
source-repository-package
type: git
location: https://github.com/input-output-hk/cardano-prelude
tag: ee4e7b547a991876e6b05ba542f4e62909f4a571
subdir:
cardano-prelude
cardano-prelude-test
source-repository-package
type: git
location: https://github.com/input-output-hk/ouroboros-network
tag: 6cb9052bde39472a0555d19ade8a42da63d3e904
subdir:
typed-protocols
typed-protocols-examples
ouroboros-network
ouroboros-network-testing
ouroboros-network-framework
io-sim
io-sim-classes
network-mux
Win32-network
source-repository-package
type: git
location: https://github.com/input-output-hk/iohk-monitoring-framework
tag: a89c38ed5825ba17ca79fddb85651007753d699d
subdir:
iohk-monitoring
tracer-transformers
contra-tracer
plugins/backend-ekg
source-repository-package
type: git
location: https://github.com/input-output-hk/cardano-ledger-specs
tag: 097890495cbb0e8b62106bcd090a5721c3f4b36f
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-ma/impl
source-repository-package
type: git
location: https://github.com/input-output-hk/goblins
tag: cde90a2b27f79187ca8310b6549331e59595e7ba