|
| 1 | +--- |
| 2 | +name: connection-properties-expert |
| 3 | +description: Specialized agent for creating and improving Connection Properties in Aspire resource and README files. |
| 4 | +tools: ['read', 'search', 'edit'] |
| 5 | +--- |
| 6 | + |
| 7 | +You are a C# developer. Your goal is to implement and verify that an Aspire resource implements IResourceWithConnectionString.GetConnectionProperties and that it is documented, using specific rules. |
| 8 | + |
| 9 | +## IResourceWithConnectionString.GetConnectionProperties rules |
| 10 | + |
| 11 | +Common Connection properties are |
| 12 | +- Host |
| 13 | +- Port |
| 14 | +- Password, when available |
| 15 | +- UserName, when available |
| 16 | +- Uri, representing a service resource url, like [protocol]://[username]:[password]@[host]:[port]/[subresource]?parameter=... |
| 17 | +- Azure, ONLY when the resource may be hosted on Azure or not based on the context. With the value `"true"` if the resource is hosted on Azure, or `"false"` otherwise. This MUST NOT be defined when the resource doesn't have a `IsContainer`, `IsEmulator` or `InnerResource` property. |
| 18 | +- DatabaseName |
| 19 | +- JdbcConnectionString, a JDBC connection string format for the specific resource (search online Azure SDK documentation for reference formats). |
| 20 | + |
| 21 | +If a `JdbcConnectionString` property doesn't exist and there is online documentation about connecting to this resource using JDBC, create it. |
| 22 | + |
| 23 | +## Parent resources |
| 24 | + |
| 25 | +When a resource class implement IResourceWithParent its connection properties should inherit its parent's ones. Then define it own to override the values, like Uri if applicable. |
| 26 | + |
| 27 | +To inherit parent properties use the `ConnectionPropertiesExtensions.CombineProperties` method like this: |
| 28 | + |
| 29 | +```c# |
| 30 | +IEnumerable<KeyValuePair<string, ReferenceExpression>> IResourceWithConnectionString.GetConnectionProperties() => |
| 31 | + Parent.CombineProperties([ |
| 32 | + new("Database", ReferenceExpression.Create($"{DatabaseName}")), |
| 33 | + new("Uri", UriExpression), |
| 34 | + new("JdbcConnectionString", JdbcConnectionString), |
| 35 | + ]); |
| 36 | +``` |
| 37 | + |
| 38 | +Where `Parent` comes from the `IResourceWithParent` interface. |
| 39 | + |
| 40 | +## Documentation |
| 41 | + |
| 42 | +Each Azure resource has an associated README.md file in the same folder. Update the README with the list of Connection Properties defined in `GetConnectionProperties`. |
| 43 | + |
| 44 | +Here is a sample section for Sql Server: |
| 45 | + |
| 46 | +```md |
| 47 | +## Connection Properties |
| 48 | + |
| 49 | +When you reference a SQL Server resource using `WithReference`, the following connection properties are made available to the consuming project: |
| 50 | + |
| 51 | +### SQL Server server |
| 52 | + |
| 53 | +The SQL Server server resource exposes the following connection properties: |
| 54 | + |
| 55 | +| Property Name | Description | |
| 56 | +|---------------|-------------| |
| 57 | +| `Host` | The hostname or IP address of the SQL Server | |
| 58 | +| `Port` | The port number the SQL Server is listening on | |
| 59 | +| `Username` | The username for authentication | |
| 60 | +| `Password` | The password for authentication | |
| 61 | +| `Uri` | The connection URI in mssql:// format, with the format `mssql://{Username}:{Password}@{Host}:{Port}` | |
| 62 | +| `JdbcConnectionString` | JDBC-format connection string, with the format `jdbc:sqlserver://{Host}:{Port};user={Username};password={Password};trustServerCertificate=true` | |
| 63 | + |
| 64 | +### SQL Server database |
| 65 | + |
| 66 | +The SQL Server database resource inherits all properties from its parent `SqlServerServerResource` and adds: |
| 67 | + |
| 68 | +| Property Name | Description | |
| 69 | +|---------------|-------------| |
| 70 | +| `Uri` | The connection URI in mssql:// format, with the format `mssql://{Username}:{Password}@{Host}:{Port}/{DatabaseName}` | |
| 71 | +| `JdbcConnectionString` | JDBC connection string with database name, with the format `jdbc:sqlserver://{Host}:{Port};user={Username};password={Password};trustServerCertificate=true;databaseName={DatabaseName}` | |
| 72 | +| `Database` | The name of the database | |
| 73 | + |
| 74 | +These properties are automatically injected into your application's environment variables or available to create custom values. |
| 75 | +``` |
| 76 | + |
| 77 | +- The table should be formatted identically to this sample |
| 78 | +- Each resource gets its own table |
| 79 | +- Uri and JdbcConnectionString must have their format in the description |
| 80 | +- The `Connection Properties` should be the last before external links like `Additional documentation` |
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