splitted one operator module to file, account, image operators; splitted operator functions; etc

app/accoper/getgrant.go

@@ -0,0 +1,40 @@
+package accoper
+
+import (
+	"context"
+	"fmt"
+
+	"mstore/pkg/descr"
+)
+
+// Get Grants
+type GetGrantParams struct {
+	GrantID string `json:"grantId"`
+}
+type GetGrantResult struct {
+	Grant *descr.Grant `json:"grant"`
+}
+
+func (oper *Operator) GetGrant(ctx context.Context, operatorID string, params *GetGrantParams) (*GetGrantResult, error) {
+	var err error
+	res := &GetGrantResult{}
+
+	if params.GrantID == "" {
+		err := fmt.Errorf("Empty grantId parameter")
+		return res, err
+	}
+
+	var grantDescr *descr.Grant
+	var grantExists bool
+	grantExists, grantDescr, err = oper.mdb.GetGrantByID(ctx, params.GrantID)
+	if err != nil {
+		return res, err
+	}
+	if !grantExists {
+		err := fmt.Errorf("Grant with ID %s dont exists", params.GrantID)
+		return res, err
+	}
+
+	res.Grant = grantDescr
+	return res, err
+}