Handle undefined attributes in records resolver (#61)

Part of [Create a public laconicd testnet](https://www.notion.so/Create-a-public-laconicd-testnet-896a11bdd8094eff8f1b49c0be0ca3b8)

Handles the error in `LOOKUP` tab in the console:
```bash
Error: Cannot destructure property 'limit' of 'attributes' as it is undefined.
```

Co-authored-by: IshaVenikar <ishavenikar7@gmail.com>
Reviewed-on: #61
Co-authored-by: Prathamesh Musale <prathamesh.musale0@gmail.com>
Co-committed-by: Prathamesh Musale <prathamesh.musale0@gmail.com>

src/containers/panels/registry/RegistryRecords.js

@@ -11,8 +11,8 @@ import Button from '@material-ui/core/Button';
 import TableHead from '@material-ui/core/TableHead';
 import TableRow from '@material-ui/core/TableRow';
 import TableBody from '@material-ui/core/TableBody';
-import TableFooter from '@material-ui/core/TableFooter';
 import TablePagination from '@material-ui/core/TablePagination';
+import { Paper, TableContainer, } from '@material-ui/core';
 
 import WNS_RECORDS from '../../../gql/wns_records.graphql';
 
@@ -108,6 +108,10 @@ const RegistryRecords = ({ type }) => {
   };
 
   return (
+    <Paper style={{
+      width: '100%',
+    }}>
+      <TableContainer>
         <Table>
           <TableHead>
             <TableRow>
@@ -121,8 +125,7 @@ const RegistryRecords = ({ type }) => {
             </TableRow>
           </TableHead>
           <TableBody>
-        {records.sort(sorter)
-          .map((record) => {
+            {records.sort(sorter).map((record) => {
               const { id, names, createTime, attributes: { type, name: displayName, fileName, version, description, service, package: pkg } } = record;
 
               let pkgLink;
@@ -150,28 +153,19 @@ const RegistryRecords = ({ type }) => {
                   <TableCell monospace>
                     {appLinks || (names || []).map(name => <div key={name}>{name}</div>)}
                   </TableCell>
-                <TableCell monospace>
-                  {version}
-                </TableCell>
-                <TableCell>
-                  {displayName || service || fileName || description}
-                </TableCell>
-                <TableCell>
-                  {moment.utc(createTime).fromNow()}
-                </TableCell>
-                <TableCell monospace>
-                  {pkgLink}
-                </TableCell>
+                  <TableCell monospace>{version}</TableCell>
+                  <TableCell>{displayName || service || fileName || description}</TableCell>
+                  <TableCell>{moment.utc(createTime).fromNow()}</TableCell>
+                  <TableCell monospace>{pkgLink}</TableCell>
                   <TableCell>
                     <QueryLink config={config} id={id} icon />
                   </TableCell>
                 </TableRow>
               );
-          }
-          )}
+            })}
           </TableBody>
-      <TableFooter>
-        <TableRow>
+        </Table>
+      </TableContainer>
       <TablePagination
         component="td"
         rowsPerPageOptions={[5, 10, 25]}
@@ -185,9 +179,7 @@ const RegistryRecords = ({ type }) => {
           disabled: records.length < rowsPerPage,
         }}
       />
-        </TableRow>
-      </TableFooter>
-    </Table>
+    </Paper>
   );
 };
 

src/resolvers.js

@@ -46,7 +46,7 @@ export const createResolvers = config => {
       wns_records: async (_, { attributes }) => {
         log('WNS records...');
 
-        const {limit, offset, ...queryAttributes } = attributes;
+        const {limit, offset, ...queryAttributes } = attributes || {};
         const data = await registry.queryRecords(queryAttributes, false, false, limit, offset);
 
         return {