New SDK - SchemaRegistry

sdk/schemaregistry/Azure.Data.SchemaRegistry/Azure.Data.SchemaRegistry.sln

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sdk/schemaregistry/Azure.Data.SchemaRegistry/CHANGELOG.md

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+# Release History
+
+## 1.0.0-beta.1 (2020-09-08)
+- Added SchemaRegistryClient with 3 operations:
+  - RegisterSchema
+  - GetSchemaId
+  - GetSchema

sdk/schemaregistry/Azure.Data.SchemaRegistry/README.md

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+# Azure Schema Registry client library for .NET
+
+The Azure Schema Registry service allows developers to provide and retrieve data schemas from a centralized repository for use in messaging systems.
+
+## Getting started
+
+### Install the package
+
+Install the Azure Schema Registry client library for .NET with [NuGet][nuget]:
+
+```bash
+dotnet add package Azure.Data.SchemaRegistry --version 1.0.0-beta.1
+```
+
+### Prerequisites
+
+* An [Azure subscription][azure_sub]
+* An [Event Hubs namespace][event_hubs_namespace]
+
+If you need to [create an Event Hubs namespace][create_event_hubs_namespace], you can use the Azure Portal or [Azure PowerShell][azure_powershell].
+
+You can use Azure PowerShell to create the Event Hubs namespace with the following command:
+
+```PowerShell
+New-AzEventHubNamespace -ResourceGroupName myResourceGroup -NamespaceName namespace_name -Location eastus
+```
+
+### Authenticate the client
+
+In order to interact with the Azure Schema Registry service, you'll need to create an instance of the [Schema Registry Client][schema_registry_client] class. To create this client, you'll need Azure resource credentials and the Event Hubs namespace hostname.
+
+#### Get credentials
+
+To acquire authenicated credentials and start interacting with Azure resources, please see the [quickstart guide here][quickstart_guide].
+
+#### Get Event Hubs namespace hostname
+
+The simpliest way is to use the [Azure portal][azure_portal] and navigate to your Event Hubs namespace. From the Overview tab, you'll see `Host name`. Copy the value from this field.
+
+#### Create SchemaRegistryClient
+
+Once you have the Azure resource credentials and the Event Hubs namespace hostname, you can create the [SchemaRegistryClient][schema_registry_client]. You'll also need the [Azure.Identity][azure_identity] package to create the credential.
+
+```C# Snippet:CreateSchemaRegistryClient
+string endpoint = "<event_hubs_namespace_hostname>";
+var credentials = new ClientSecretCredential(
+    "<tenant_id>",
+    "<client_id>",
+    "<client_secret>"
+);
+var client = new SchemaRegistryClient(endpoint, credentials);
+```
+
+## Key concepts
+
+### Schemas
+
+A schema has 6 components:
+- Group Name: The name of the group of schemas in the Schema Registry instance.
+- Schema Name: The name of the schema.
+- Schema ID: The ID assigned by the Schema Registry instance for the schema.
+- Serialization Type: The format used for serialization of the schema. For example, Avro.
+- Schema Content: The string representation of the schema.
+- Schema Version: The version assigned to the schema in the Schema Registry instance.
+
+These components play different roles. Some are used as input into the operations and some are outputs. Currently, [SchemaProperties][schema_properties] only exposes those properties that are potential outputs that are used in SchemaRegistry operations. Those exposed properties are `Content` and `Id`.
+
+## Examples
+
+The following shows examples of what is available through the SchemaRegistryClient. There are both sync and async methods available for these client operations.
+
+* [Register a schema](#register-a-schema)
+* [Retrieve a schema ID](#retrieve-a-schema-id)
+* [Retrieve a schema](#retrieve-a-schema)
+
+### Register a schema
+
+Register a schema to be stored in the Azure Schema Registry.
+
+```C# Snippet:RegisterSchema
+string schemaName = "<schema_name>";
+string groupName = "<schema_group_name>";
+SerializationType schemaType = SerializationType.Avro;
+// Example schema's content
+string schemaContent = @"
+{
+   ""type"" : ""record"",
+    ""namespace"" : ""TestSchema"",
+    ""name"" : ""Employee"",
+    ""fields"" : [
+    { ""name"" : ""Name"" , ""type"" : ""string"" },
+    { ""name"" : ""Age"", ""type"" : ""int"" }
+    ]
+}";
+
+Response<SchemaProperties> schemaProperties = client.RegisterSchema(groupName, schemaName, schemaType, schemaContent);
+```
+
+### Retrieve a schema ID
+
+Retrieve a previously registered schema ID from the Azure Schema Registry.
+
+```C# Snippet:RetrieveSchemaId
+string schemaName = "<schema_name>";
+string groupName = "<schema_group_name>";
+SerializationType schemaType = SerializationType.Avro;
+// Example schema's content
+string schemaContent = @"
+{
+   ""type"" : ""record"",
+    ""namespace"" : ""TestSchema"",
+    ""name"" : ""Employee"",
+    ""fields"" : [
+    { ""name"" : ""Name"" , ""type"" : ""string"" },
+    { ""name"" : ""Age"", ""type"" : ""int"" }
+    ]
+}";
+
+Response<SchemaProperties> schemaProperties = client.GetSchemaId(groupName, schemaName, schemaType, schemaContent);
+string schemaId = schemaProperties.Value.Id;
+```
+
+### Retrieve a schema
+
+Retrieve a previously registered schema's content from the Azure Schema Registry.
+
+```C# Snippet:RetrieveSchema
+string schemaId = "<schema_id>";
+
+Response<SchemaProperties> schemaProperties = client.GetSchema(schemaId);
+string schemaContent = schemaProperties.Value.Content;
+```
+
+## Contributing
+
+This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit [cla.microsoft.com][cla].
+
+When you submit a pull request, a CLA-bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.
+
+This project has adopted the [Microsoft Open Source Code of Conduct][code_of_conduct]. For more information see the [Code of Conduct FAQ][code_of_conduct_faq] or contact [opencode@microsoft.com][email_opencode] with any additional questions or comments.
+
+![Impressions](https://azure-sdk-impressions.azurewebsites.net/api/impressions/azure-sdk-for-net%2Fsdk%2Ftemplate%2FAzure.Template%2FREADME.png)
+
+<!-- LINKS -->
+[nuget]: https://www.nuget.org/
+[event_hubs_namespace]: https://docs.microsoft.com/en-us/azure/event-hubs/event-hubs-about
+[azure_powershell]: https://docs.microsoft.com/en-us/powershell/azure/
+[create_event_hubs_namespace]: https://docs.microsoft.com/en-us/azure/event-hubs/event-hubs-quickstart-powershell#create-an-event-hubs-namespace
+[quickstart_guide]: https://github.com/Azure/azure-sdk-for-net/blob/master/doc/mgmt_preview_quickstart.md
+[schema_registry_client]: src/SchemaRegistryClient.cs
+[azure_portal]: https://ms.portal.azure.com/
+[schema_properties]: src/SchemaProperties.cs
+[azure_identity]: https://www.nuget.org/packages/Azure.Identity
+[cla]: https://cla.microsoft.com
+[code_of_conduct]: https://opensource.microsoft.com/codeofconduct/
+[code_of_conduct_faq]: https://opensource.microsoft.com/codeofconduct/faq/
+[email_opencode]: mailto:opencode@microsoft.com
+[azure_sub]: https://azure.microsoft.com/free/

sdk/schemaregistry/Azure.Data.SchemaRegistry/api/Azure.Data.SchemaRegistry.netstandard2.0.cs

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+namespace Azure.Data.SchemaRegistry
+{
+    public partial class SchemaProperties
+    {
+        internal SchemaProperties() { }
+        public string Content { get { throw null; } }
+        public string Id { get { throw null; } }
+    }
+    public partial class SchemaRegistryClient
+    {
+        protected SchemaRegistryClient() { }
+        public SchemaRegistryClient(string endpoint, Azure.Core.TokenCredential credential) { }
+        public SchemaRegistryClient(string endpoint, Azure.Core.TokenCredential credential, Azure.Data.SchemaRegistry.SchemaRegistryClientOptions options) { }
+        public virtual Azure.Response<Azure.Data.SchemaRegistry.SchemaProperties> GetSchema(string schemaId, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
+        public virtual System.Threading.Tasks.Task<Azure.Response<Azure.Data.SchemaRegistry.SchemaProperties>> GetSchemaAsync(string schemaId, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
+        public virtual Azure.Response<Azure.Data.SchemaRegistry.SchemaProperties> GetSchemaId(string groupName, string schemaName, Azure.Data.SchemaRegistry.SerializationType serializationType, string schemaContent, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
+        public virtual System.Threading.Tasks.Task<Azure.Response<Azure.Data.SchemaRegistry.SchemaProperties>> GetSchemaIdAsync(string groupName, string schemaName, Azure.Data.SchemaRegistry.SerializationType serializationType, string schemaContent, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
+        public virtual Azure.Response<Azure.Data.SchemaRegistry.SchemaProperties> RegisterSchema(string groupName, string schemaName, Azure.Data.SchemaRegistry.SerializationType serializationType, string schemaContent, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
+        public virtual System.Threading.Tasks.Task<Azure.Response<Azure.Data.SchemaRegistry.SchemaProperties>> RegisterSchemaAsync(string groupName, string schemaName, Azure.Data.SchemaRegistry.SerializationType serializationType, string schemaContent, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
+    }
+    public partial class SchemaRegistryClientOptions : Azure.Core.ClientOptions
+    {
+        public SchemaRegistryClientOptions(Azure.Data.SchemaRegistry.SchemaRegistryClientOptions.ServiceVersion version = Azure.Data.SchemaRegistry.SchemaRegistryClientOptions.ServiceVersion.V2017_04) { }
+        public enum ServiceVersion
+        {
+            V2017_04 = 1,
+        }
+    }
+    [System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential)]
+    public readonly partial struct SerializationType : System.IEquatable<Azure.Data.SchemaRegistry.SerializationType>
+    {
+        private readonly object _dummy;
+        private readonly int _dummyPrimitive;
+        public SerializationType(string value) { throw null; }
+        public static Azure.Data.SchemaRegistry.SerializationType Avro { get { throw null; } }
+        public bool Equals(Azure.Data.SchemaRegistry.SerializationType other) { throw null; }
+        [System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Never)]
+        public override bool Equals(object obj) { throw null; }
+        [System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Never)]
+        public override int GetHashCode() { throw null; }
+        public static bool operator ==(Azure.Data.SchemaRegistry.SerializationType left, Azure.Data.SchemaRegistry.SerializationType right) { throw null; }
+        public static implicit operator Azure.Data.SchemaRegistry.SerializationType (string value) { throw null; }
+        public static bool operator !=(Azure.Data.SchemaRegistry.SerializationType left, Azure.Data.SchemaRegistry.SerializationType right) { throw null; }
+        public override string ToString() { throw null; }
+    }
+}

sdk/schemaregistry/Azure.Data.SchemaRegistry/src/Azure.Data.SchemaRegistry.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <Description>Azure Schema Registry SDK</Description>
+    <AssemblyTitle>Azure Schema Registry SDK</AssemblyTitle>
+    <Version>1.0.0-beta.1</Version>
+    <PackageTags>Azure;Schema Registry;SchemaRegistry;.NET;Data;$(PackageCommonTags)</PackageTags>
+    <TargetFrameworks>$(RequiredTargetFrameworks)</TargetFrameworks>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Apache.Avro" VersionOverride="1.10.0" />
+  </ItemGroup>
+
+  <!-- Shared source from Azure.Core -->
+  <ItemGroup>
+    <Compile Include="$(AzureCoreSharedSources)ArrayBufferWriter.cs" Link="Shared\%(RecursiveDir)\%(Filename)%(Extension)" />
+    <Compile Include="$(AzureCoreSharedSources)ClientDiagnostics.cs" Link="Shared\%(RecursiveDir)\%(Filename)%(Extension)" />
+    <Compile Include="$(AzureCoreSharedSources)ContentTypeUtilities.cs" Link="Shared\%(RecursiveDir)\%(Filename)%(Extension)" />
+    <Compile Include="$(AzureCoreSharedSources)DiagnosticScope.cs" Link="Shared\%(RecursiveDir)\%(Filename)%(Extension)" />
+    <Compile Include="$(AzureCoreSharedSources)DiagnosticScopeFactory.cs" Link="Shared\%(RecursiveDir)\%(Filename)%(Extension)" />
+    <Compile Include="$(AzureCoreSharedSources)HttpMessageSanitizer.cs" Link="Shared\%(RecursiveDir)\%(Filename)%(Extension)" />
+    <Compile Include="$(AzureCoreSharedSources)TaskExtensions.cs" Link="Shared\%(RecursiveDir)\%(Filename)%(Extension)" />
+    <Compile Include="$(AzureCoreSharedSources)OperationHelpers.cs" Link="Shared\%(RecursiveDir)\%(Filename)%(Extension)" />
+    <Compile Include="$(AzureCoreSharedSources)Argument.cs" Link="Shared\%(RecursiveDir)\%(Filename)%(Extension)" />
+  </ItemGroup>
+
+  <Import Project="$(MSBuildThisFileDirectory)..\..\..\core\Azure.Core\src\Azure.Core.props" />
+
+</Project>