ConnectionArgs

using System.Collections.Generic;
using System.Linq;
using Pulumi;
using AzureNative = Pulumi.AzureNative;
return await Deployment.RunAsync(() =>
{
    var connection = new AzureNative.Web.Connection("connection", new()
    {
        ConnectionName = "testManagedApi",
        Properties = new AzureNative.Web.Inputs.ApiConnectionDefinitionPropertiesArgs
        {
            Api = new AzureNative.Web.Inputs.ApiReferenceArgs
            {
                Id = "/subscriptions/f34b22a3-2202-4fb1-b040-1332bd928c84/providers/Microsoft.Web/locations/centralus/managedApis/testManagedApi",
            },
            CustomParameterValues = null,
            DisplayName = "testManagedApi",
            ParameterValues = null,
        },
        ResourceGroupName = "testResourceGroup",
    });
});

package main
import (
	web "github.com/pulumi/pulumi-azure-native-sdk/web/v2"
	"github.com/pulumi/pulumi/sdk/v3/go/pulumi"
)
func main() {
	pulumi.Run(func(ctx *pulumi.Context) error {
		_, err := web.NewConnection(ctx, "connection", &web.ConnectionArgs{
			ConnectionName: pulumi.String("testManagedApi"),
			Properties: &web.ApiConnectionDefinitionPropertiesArgs{
				Api: &web.ApiReferenceArgs{
					Id: pulumi.String("/subscriptions/f34b22a3-2202-4fb1-b040-1332bd928c84/providers/Microsoft.Web/locations/centralus/managedApis/testManagedApi"),
				},
				CustomParameterValues: pulumi.StringMap{},
				DisplayName:           pulumi.String("testManagedApi"),
				ParameterValues:       pulumi.StringMap{},
			},
			ResourceGroupName: pulumi.String("testResourceGroup"),
		})
		if err != nil {
			return err
		}
		return nil
	})
}

package generated_program;
import com.pulumi.Context;
import com.pulumi.Pulumi;
import com.pulumi.core.Output;
import com.pulumi.azurenative.web.Connection;
import com.pulumi.azurenative.web.ConnectionArgs;
import com.pulumi.azurenative.web.inputs.ApiConnectionDefinitionPropertiesArgs;
import com.pulumi.azurenative.web.inputs.ApiReferenceArgs;
import java.util.List;
import java.util.ArrayList;
import java.util.Map;
import java.io.File;
import java.nio.file.Files;
import java.nio.file.Paths;
public class App {
    public static void main(String[] args) {
        Pulumi.run(App::stack);
    }
    public static void stack(Context ctx) {
        var connection = new Connection("connection", ConnectionArgs.builder()
            .connectionName("testManagedApi")
            .properties(ApiConnectionDefinitionPropertiesArgs.builder()
                .api(ApiReferenceArgs.builder()
                    .id("/subscriptions/f34b22a3-2202-4fb1-b040-1332bd928c84/providers/Microsoft.Web/locations/centralus/managedApis/testManagedApi")
                    .build())
                .customParameterValues()
                .displayName("testManagedApi")
                .parameterValues()
                .build())
            .resourceGroupName("testResourceGroup")
            .build());
    }
}

$ pulumi import azure-native:web:Connection testManagedApi-1 /subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Web/connections/{connectionName}