anonymous account pallet creation

Cargo.toml

@@ -7,21 +7,22 @@ homepage = "https://substrate.io"
 
 [workspace]
 members = [
-    "node",
-    "pallets/template",
-    "custom-pallets/department-funding",
-    "custom-pallets/positive-externality",
-    "custom-pallets/profile-validation",
-    "custom-pallets/project-tips",
-    "custom-pallets/schelling-game-shared",
-    "custom-pallets/shared-storage",
-    "custom-pallets/sortition-sum-game",
-    "custom-pallets/spaces",
-    "custom-pallets/support",
-    "custom-pallets/departments",
-    "runtime",
-    "custom-pallets/simple-approval-voting",
-    "custom-pallets/first-past-the-post",
+	"node",
+	"pallets/template",
+	"custom-pallets/department-funding",
+	"custom-pallets/positive-externality",
+	"custom-pallets/profile-validation",
+	"custom-pallets/project-tips",
+	"custom-pallets/schelling-game-shared",
+	"custom-pallets/shared-storage",
+	"custom-pallets/sortition-sum-game",
+	"custom-pallets/spaces",
+	"custom-pallets/support",
+	"custom-pallets/departments",
+	"runtime",
+	"custom-pallets/simple-approval-voting",
+	"custom-pallets/first-past-the-post",
+	"custom-pallets/anonymous-account",
 ]
 resolver = "2"
 [profile.release]
@@ -72,6 +73,7 @@ pallet-project-tips = { path = "custom-pallets/project-tips", default-features =
 pallet-positive-externality = { path = "custom-pallets/positive-externality", default-features = false }
 pallet-department-funding = { path = "custom-pallets/department-funding", default-features = false }
 pallet-departments = { path = "custom-pallets/departments", default-features = false }
+pallet-anonymous-account = { path = "custom-pallets/anonymous-account", default-features = false }
 pallet-simple-approval-voting = { path = "custom-pallets/simple-approval-voting", default-features = false }
 pallet-first-past-the-post = { path = "custom-pallets/first-past-the-post" }
 
@@ -110,10 +112,10 @@ hex-literal = { version = " 0.4.1" }
 ## New end
 
 parity-scale-codec = { package = "parity-scale-codec", version = "3.6.1", default-features = false, features = [
-    "derive",
+	"derive",
 ] }
 scale-info = { version = "2.10.0", default-features = false, features = [
-    "derive",
+	"derive",
 ] }
 
 # frame deps

custom-pallets/anonymous-account/Cargo.toml

@@ -0,0 +1,37 @@
+[package]
+name = "pallet-anonymous-account"
+version = "4.0.0-dev"
+description = "FRAME pallet template for defining custom runtime logic."
+authors = ["Substrate DevHub <https://github.com/substrate-developer-hub>"]
+homepage = "https://substrate.io"
+edition = "2021"
+license = "MIT-0"
+publish = false
+repository = "https://github.com/substrate-developer-hub/substrate-node-template/"
+
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+
+[dependencies]
+parity-scale-codec = { workspace = true }
+scale-info = { workspace = true }
+frame-benchmarking = { workspace = true, optional = true }
+frame-support = { workspace = true }
+frame-system = { workspace = true }
+
+[dev-dependencies]
+sp-core = { workspace = true }
+sp-io = { workspace = true }
+sp-runtime = { workspace = true }
+
+[features]
+default = ["std"]
+std = [
+	"parity-scale-codec/std",
+	"frame-benchmarking?/std",
+	"frame-support/std",
+	"frame-system/std",
+	"scale-info/std",
+]
+runtime-benchmarks = ["frame-benchmarking/runtime-benchmarks"]
+try-runtime = ["frame-support/try-runtime"]

custom-pallets/anonymous-account/README.md

@@ -0,0 +1 @@
+License: MIT-0

custom-pallets/anonymous-account/src/benchmarking.rs

@@ -0,0 +1,35 @@
+//! Benchmarking setup for pallet-template
+#![cfg(feature = "runtime-benchmarks")]
+use super::*;
+
+#[allow(unused)]
+use crate::Pallet as Template;
+use frame_benchmarking::v2::*;
+use frame_system::RawOrigin;
+
+#[benchmarks]
+mod benchmarks {
+    use super::*;
+
+    #[benchmark]
+    fn do_something() {
+        let value = 100u32.into();
+        let caller: T::AccountId = whitelisted_caller();
+        #[extrinsic_call]
+        do_something(RawOrigin::Signed(caller), value);
+
+        assert_eq!(Something::<T>::get(), Some(value));
+    }
+
+    #[benchmark]
+    fn cause_error() {
+        Something::<T>::put(100u32);
+        let caller: T::AccountId = whitelisted_caller();
+        #[extrinsic_call]
+        cause_error(RawOrigin::Signed(caller));
+
+        assert_eq!(Something::<T>::get(), Some(101u32));
+    }
+
+    impl_benchmark_test_suite!(Template, crate::mock::new_test_ext(), crate::mock::Test);
+}

custom-pallets/anonymous-account/src/lib.rs

@@ -0,0 +1,121 @@
+#![cfg_attr(not(feature = "std"), no_std)]
+
+/// Edit this file to define custom logic or remove it if it is not needed.
+/// Learn more about FRAME and the core library of Substrate FRAME pallets:
+/// <https://docs.substrate.io/reference/frame-pallets/>
+pub use pallet::*;
+
+#[cfg(test)]
+mod mock;
+
+#[cfg(test)]
+mod tests;
+
+#[cfg(feature = "runtime-benchmarks")]
+mod benchmarking;
+pub mod weights;
+pub use weights::*;
+
+pub type DepartmentId = u64;
+
+#[frame_support::pallet]
+pub mod pallet {
+	use super::*;
+	use frame_support::pallet_prelude::*;
+	use frame_system::pallet_prelude::*;
+
+	#[pallet::pallet]
+	#[pallet::without_storage_info]
+	pub struct Pallet<T>(_);
+
+	/// Configure the pallet by specifying the parameters and types on which it depends.
+	#[pallet::config]
+	pub trait Config: frame_system::Config {
+		/// Because this pallet emits events, it depends on the runtime's definition of an event.
+		type RuntimeEvent: From<Event<Self>> + IsType<<Self as frame_system::Config>::RuntimeEvent>;
+		/// Type representing the weight of this pallet
+		type WeightInfo: WeightInfo;
+	}
+
+	// The pallet's runtime storage items.
+	// https://docs.substrate.io/main-docs/build/runtime-storage/
+	#[pallet::storage]
+	#[pallet::getter(fn something)]
+	// Learn more about declaring storage items:
+	// https://docs.substrate.io/main-docs/build/runtime-storage/#declaring-storage-items
+	pub type Something<T> = StorageValue<_, u32>;
+
+	#[pallet::storage]
+	#[pallet::getter(fn kyc_accounts)]
+	pub type KYCAccounts<T: Config> =
+		StorageMap<_, Blake2_128Concat, DepartmentId, Vec<(T::AccountId, [u8; 64])>>;
+
+	#[pallet::storage]
+	#[pallet::getter(fn hash_by_range)]
+	pub type HashByRange<T: Config> =
+		StorageMap<_, Blake2_128Concat, (DepartmentId, u32, u32), [u8; 32]>;
+
+	// Pallets use events to inform users when important changes are made.
+	// https://docs.substrate.io/main-docs/build/events-errors/
+	#[pallet::event]
+	#[pallet::generate_deposit(pub(super) fn deposit_event)]
+	pub enum Event<T: Config> {
+		/// Event documentation should end with an array that provides descriptive names for event
+		/// parameters. [something, who]
+		SomethingStored { something: u32, who: T::AccountId },
+	}
+
+	// Errors inform users that something went wrong.
+	#[pallet::error]
+	pub enum Error<T> {
+		/// Error names should be descriptive.
+		NoneValue,
+		/// Errors should have helpful documentation associated with them.
+		StorageOverflow,
+	}
+
+	// Dispatchable functions allows users to interact with the pallet and invoke state changes.
+	// These functions materialize as "extrinsics", which are often compared to transactions.
+	// Dispatchable functions must be annotated with a weight and must return a DispatchResult.
+	#[pallet::call]
+	impl<T: Config> Pallet<T> {
+		/// An example dispatchable that takes a singles value as a parameter, writes the value to
+		/// storage and emits an event. This function must be dispatched by a signed extrinsic.
+		#[pallet::call_index(0)]
+		#[pallet::weight(T::WeightInfo::do_something())]
+		pub fn do_something(origin: OriginFor<T>, something: u32) -> DispatchResult {
+			// Check that the extrinsic was signed and get the signer.
+			// This function will return an error if the extrinsic is not signed.
+			// https://docs.substrate.io/main-docs/build/origins/
+			let who = ensure_signed(origin)?;
+
+			// Update storage.
+			<Something<T>>::put(something);
+
+			// Emit an event.
+			Self::deposit_event(Event::SomethingStored { something, who });
+			// Return a successful DispatchResultWithPostInfo
+			Ok(())
+		}
+
+		/// An example dispatchable that may throw a custom error.
+		#[pallet::call_index(1)]
+		#[pallet::weight(T::WeightInfo::cause_error())]
+		pub fn cause_error(origin: OriginFor<T>) -> DispatchResult {
+			let _who = ensure_signed(origin)?;
+
+			// Read a value from storage.
+			match <Something<T>>::get() {
+				// Return an error if the value has not been set.
+				None => return Err(Error::<T>::NoneValue.into()),
+				Some(old) => {
+					// Increment the value read from storage; will error in the event of overflow.
+					let new = old.checked_add(1).ok_or(Error::<T>::StorageOverflow)?;
+					// Update the value in storage with the incremented result.
+					<Something<T>>::put(new);
+					Ok(())
+				},
+			}
+		}
+	}
+}

custom-pallets/anonymous-account/src/mock.rs

@@ -0,0 +1,61 @@
+use crate as pallet_template;
+use frame_support::{
+    derive_impl,
+    traits::{ConstU16, ConstU64},
+};
+use sp_core::H256;
+use sp_runtime::{
+    traits::{BlakeTwo256, IdentityLookup},
+    BuildStorage,
+};
+
+type Block = frame_system::mocking::MockBlock<Test>;
+
+// Configure a mock runtime to test the pallet.
+frame_support::construct_runtime!(
+    pub enum Test
+    {
+        System: frame_system,
+        TemplateModule: pallet_template,
+    }
+);
+
+#[derive_impl(frame_system::config_preludes::TestDefaultConfig as frame_system::DefaultConfig)]
+impl frame_system::Config for Test {
+    type BaseCallFilter = frame_support::traits::Everything;
+    type BlockWeights = ();
+    type BlockLength = ();
+    type DbWeight = ();
+    type RuntimeOrigin = RuntimeOrigin;
+    type RuntimeCall = RuntimeCall;
+    type Nonce = u64;
+    type Hash = H256;
+    type Hashing = BlakeTwo256;
+    type AccountId = u64;
+    type Lookup = IdentityLookup<Self::AccountId>;
+    type Block = Block;
+    type RuntimeEvent = RuntimeEvent;
+    type BlockHashCount = ConstU64<250>;
+    type Version = ();
+    type PalletInfo = PalletInfo;
+    type AccountData = ();
+    type OnNewAccount = ();
+    type OnKilledAccount = ();
+    type SystemWeightInfo = ();
+    type SS58Prefix = ConstU16<42>;
+    type OnSetCode = ();
+    type MaxConsumers = frame_support::traits::ConstU32<16>;
+}
+
+impl pallet_template::Config for Test {
+    type RuntimeEvent = RuntimeEvent;
+    type WeightInfo = ();
+}
+
+// Build genesis storage according to the mock runtime.
+pub fn new_test_ext() -> sp_io::TestExternalities {
+    frame_system::GenesisConfig::<Test>::default()
+        .build_storage()
+        .unwrap()
+        .into()
+}

custom-pallets/anonymous-account/src/tests.rs

@@ -0,0 +1,33 @@
+use crate::{mock::*, Error, Event};
+use frame_support::{assert_noop, assert_ok};
+
+#[test]
+fn it_works_for_default_value() {
+    new_test_ext().execute_with(|| {
+        // Go past genesis block so events get deposited
+        System::set_block_number(1);
+        // Dispatch a signed extrinsic.
+        assert_ok!(TemplateModule::do_something(RuntimeOrigin::signed(1), 42));
+        // Read pallet storage and assert an expected result.
+        assert_eq!(TemplateModule::something(), Some(42));
+        // Assert that the correct event was deposited
+        System::assert_last_event(
+            Event::SomethingStored {
+                something: 42,
+                who: 1,
+            }
+            .into(),
+        );
+    });
+}
+
+#[test]
+fn correct_error_for_none_value() {
+    new_test_ext().execute_with(|| {
+        // Ensure the expected error is thrown when no value is present.
+        assert_noop!(
+            TemplateModule::cause_error(RuntimeOrigin::signed(1)),
+            Error::<Test>::NoneValue
+        );
+    });
+}