datasources: querier: adjust the query-client (#99805)

pkg/registry/apis/query/clientapi/clientapi.go

@@ -0,0 +1,18 @@
+package clientapi
+
+import (
+	"context"
+
+	"github.com/grafana/grafana-plugin-sdk-go/backend"
+	data "github.com/grafana/grafana-plugin-sdk-go/experimental/apis/data/v0alpha1"
+)
+
+type QueryDataClient interface {
+	QueryData(ctx context.Context, req data.QueryDataRequest) (*backend.QueryDataResponse, error)
+}
+
+// The query runner interface
+type DataSourceClientSupplier interface {
+	// Get a client for a given datasource
+	GetDataSourceClient(ctx context.Context, ref data.DataSourceRef, headers map[string]string) (QueryDataClient, error)
+}