Feature/hello world

.gitignore

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+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# User-specific files
+*.suo
+*.user
+*.sln.docstates
+
+# Build results
+
+[Dd]ebug/
+[Rr]elease/
+x64/
+[Bb]in/
+[Oo]bj/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+*_i.c
+*_p.c
+*_i.h
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.log
+*.svclog
+*.scc
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opensdf
+*.sdf
+*.cachefile
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.Publish.xml
+*.pubxml
+*.azurePubxml
+
+# NuGet Packages Directory
+## TODO: If you have NuGet Package Restore enabled, uncomment the next line
+packages/
+## TODO: If the tool you use requires repositories.config, also uncomment the next line
+!packages/repositories.config
+
+# Windows Azure Build Output
+csx/
+*.build.csdef
+
+# Windows Store app package directory
+AppPackages/
+
+# Others
+sql/
+*.Cache
+ClientBin/
+[Ss]tyle[Cc]op.*
+![Ss]tyle[Cc]op.targets
+~$*
+*~
+*.dbmdl
+*.[Pp]ublish.xml
+
+*.publishsettings
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file to a newer
+# Visual Studio version. Backup files are not needed, because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# SQL Server files
+App_Data/*.mdf
+App_Data/*.ldf
+
+# =========================
+# Windows detritus
+# =========================
+
+# Windows image file caches
+Thumbs.db
+ehthumbs.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Mac desktop service store files
+.DS_Store
+
+_NCrunch*
+
+# =================================
+# Common IntelliJ Platform excludes
+# =================================
+
+# User specific
+**/.idea/**/workspace.xml
+**/.idea/**/tasks.xml
+**/.idea/shelf/*
+**/.idea/dictionaries
+**/.idea/httpRequests/
+
+# Sensitive or high-churn files
+**/.idea/**/dataSources/
+**/.idea/**/dataSources.ids
+**/.idea/**/dataSources.xml
+**/.idea/**/dataSources.local.xml
+**/.idea/**/sqlDataSources.xml
+**/.idea/**/dynamic.xml
+
+# Rider
+# Rider auto-generates .iml files, and contentModel.xml
+**/.idea/**/*.iml
+**/.idea/**/contentModel.xml
+**/.idea/**/modules.xml

basics/hello-world/src/AElf.Contracts.HelloWorld.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+    <PropertyGroup>
+        <TargetFramework>net6.0</TargetFramework>
+        <RootNamespace>AElf.Contracts.HelloWorld</RootNamespace>
+        <IsContract>true</IsContract>
+    </PropertyGroup>
+    <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+        <CheckForOverflowUnderflow>true</CheckForOverflowUnderflow>
+    </PropertyGroup>
+    <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
+        <CheckForOverflowUnderflow>true</CheckForOverflowUnderflow>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="AElf.Sdk.CSharp" Version="1.3.0" />
+        <PackageReference Include="AElf.Tools" Version="1.0.2">
+            <PrivateAssets>all</PrivateAssets>
+            <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        </PackageReference>
+    </ItemGroup>
+
+</Project>
+

basics/hello-world/src/HelloWorld.cs

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+using AElf.Sdk.CSharp;
+using Google.Protobuf.WellKnownTypes;
+
+namespace AElf.Contracts.HelloWorld
+{
+    public partial class HelloWorld : HelloWorldContainer.HelloWorldBase
+    {
+        // Method to update the message value. 
+        public override Empty Update(StringValue input)
+        {
+            // Set the message value in the contract state
+            State.Message.Value = input.Value;
+            // Trigger an event to notify listeners about the message update
+            Context.Fire(new UpdatedMessage
+            {
+                Value = input.Value
+            });
+            // Return an empty response
+            return new Empty();
+        }
+
+        // Method to read the current message value
+        public override StringValue Read(Empty input)
+        {
+            // Create a new StringValue object to hold the message value
+            StringValue value = new StringValue();
+            // Set the value from the contract state
+            value.Value = State.Message.Value;
+            // Return the StringValue object
+            return value;
+        }
+    }
+
+}

basics/hello-world/src/HelloWorldState.cs

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+using AElf.Sdk.CSharp.State;
+
+namespace AElf.Contracts.HelloWorld
+{
+    public partial class HelloWorldState : ContractState 
+    {
+        public StringState Message { get; set; }
+    }
+}

basics/hello-world/src/Protobuf/base/acs1.proto

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+/**
+ * AElf Standards ACS1(Transaction Fee Standard)
+ *
+ * Used to manage the transaction fee.
+ */
+syntax = "proto3";
+
+package acs1;
+
+import public "aelf/options.proto";
+import public "google/protobuf/empty.proto";
+import public "google/protobuf/wrappers.proto";
+import "aelf/core.proto";
+import "Protobuf/message/authority_info.proto";
+
+option (aelf.identity) = "acs1";
+option csharp_namespace = "AElf.Standards.ACS1";
+
+service MethodFeeProviderContract {
+
+    // Set the method fees for the specified method. Note that this will override all fees of the method.
+    rpc SetMethodFee (MethodFees) returns (google.protobuf.Empty) {
+    }
+
+    // Change the method fee controller, the default is parliament and default organization.
+    rpc ChangeMethodFeeController (AuthorityInfo) returns (google.protobuf.Empty) {
+    }
+
+    // Query method fee information by method name.
+    rpc GetMethodFee (google.protobuf.StringValue) returns (MethodFees) {
+        option (aelf.is_view) = true;
+    }
+
+    // Query the method fee controller.
+    rpc GetMethodFeeController (google.protobuf.Empty) returns (AuthorityInfo) {
+        option (aelf.is_view) = true;
+    }
+}
+
+message MethodFees {
+    // The name of the method to be charged.
+    string method_name = 1;
+    // List of fees to be charged.
+    repeated MethodFee fees = 2;
+    bool is_size_fee_free = 3;// Optional based on the implementation of SetMethodFee method.
+}
+
+message MethodFee {
+    // The token symbol of the method fee.
+    string symbol = 1;
+    // The amount of fees to be charged.
+    int64 basic_fee = 2;
+}

basics/hello-world/src/Protobuf/contract/hello_world_contract.proto

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+syntax = "proto3";
+
+import "aelf/core.proto";
+import "aelf/options.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/wrappers.proto";
+
+option csharp_namespace = "AElf.Contracts.HelloWorld";
+
+service HelloWorld {
+  option (aelf.csharp_state) = "AElf.Contracts.HelloWorld.HelloWorldState";
+
+  // Actions
+  rpc Update (google.protobuf.StringValue) returns (google.protobuf.Empty) {
+  }
+
+  // Views
+  rpc Read (google.protobuf.Empty) returns (google.protobuf.StringValue) {
+    option (aelf.is_view) = true;
+  }
+}
+
+message UpdatedMessage {
+  option (aelf.is_event) = true;
+  string value = 1;
+}

basics/hello-world/src/Protobuf/message/authority_info.proto

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+syntax = "proto3";
+
+import "aelf/core.proto";
+
+option csharp_namespace = "AElf.Contracts.HelloWorld";
+
+message AuthorityInfo {
+  aelf.Address contract_address = 1;
+  aelf.Address owner_address = 2;
+}

basics/hello-world/test/AElf.Contracts.HelloWorld.Tests.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net6.0</TargetFramework>
+        <RootNamespace>AElf.Contracts.HelloWorld</RootNamespace>
+    </PropertyGroup>
+
+    <PropertyGroup>
+        <NoWarn>0436</NoWarn>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="AElf.Testing.TestBase" Version="1.0.0" />
+        <PackageReference Include="AElf.EconomicSystem" Version="1.3.0" />
+        <PackageReference Include="AElf.GovernmentSystem" Version="1.3.0" />
+        <PackageReference Include="coverlet.msbuild" Version="2.5.1" />
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.3.0" />
+        <PackageReference Include="Shouldly" Version="3.0.2" />
+        <PackageReference Include="xunit" Version="2.4.1" />
+        <PackageReference Include="xunit.runner.console" Version="2.4.1" />
+        <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" />
+        <PackageReference Include="AElf.ContractTestKit" Version="1.3.0" />
+        <PackageReference Include="AElf.Tools" Version="1.0.2">
+            <PrivateAssets>all</PrivateAssets>
+            <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        </PackageReference>
+    </ItemGroup>
+
+    <ItemGroup>
+        <ProjectReference Include="..\src\AElf.Contracts.HelloWorld.csproj" />
+    </ItemGroup>
+
+</Project>