fix: get() returns undefined when no data is returned

src/contract/table.ts

@@ -155,7 +155,10 @@ export class Table<RowType = any> {
      *  Each key-value pair in the queryParams object corresponds to a field and its expected value in the table.
      * @returns {Promise<TableRow>} Promise resolving to a single table row.
      */
-    async get(value?: API.v1.TableIndexType | string, params: QueryParams = {}): Promise<RowType> {
+    async get(
+        value?: API.v1.TableIndexType | string,
+        params: QueryParams = {}
+    ): Promise<RowType | undefined> {
         const tableRowsParams: any = {
             table: this.name,
             code: this.account,
@@ -187,6 +190,10 @@ export class Table<RowType = any> {
         }
 
         const {rows} = await this.client!.v1.chain.get_table_rows(tableRowsParams)
+
+        if (rows.length === 0) {
+            return undefined
+        }
         let [row] = rows
 
         if (!this.rowType) {

test/data/requests/414317c9310901aea8c456060b14733cc332e56a.json

@@ -0,0 +1,16 @@
+{
+    "request": {
+        "path": "https://eos.greymass.com/v1/chain/get_table_rows",
+        "params": {
+            "method": "POST",
+            "body": "{\"table\":\"producers\",\"code\":\"eosio\",\"scope\":\"eosio\",\"limit\":1,\"lower_bound\":\"doesnotexist\",\"upper_bound\":\"doesnotexist\",\"key_type\":\"name\",\"json\":false}"
+        }
+    },
+    "status": 200,
+    "json": {
+        "rows": [],
+        "more": false,
+        "next_key": ""
+    },
+    "text": "{\"rows\":[],\"more\":false,\"next_key\":\"\"}"
+}

test/tests/table.ts

@@ -115,8 +115,8 @@ suite('Table', () => {
             assert.instanceOf(table, Table)
             const row = await table.get()
             assert.instanceOf(row, NameBid)
-            assert.instanceOf(row.newname, Name)
-            assert.instanceOf(row.high_bid, Int64)
+            assert.instanceOf(row?.newname, Name)
+            assert.instanceOf(row?.high_bid, Int64)
         })
         suite('all', () => {
             test('should return every single row in a table', async () => {
@@ -388,6 +388,12 @@ suite('Table', () => {
             const result = await contract.table('accounts', 'wharfkittest').get()
             assert.instanceOf(result.balance, Asset)
         })
+
+        test('should return undefined when no entry is found', async function () {
+            const row = await producersTable.get('doesnotexist')
+
+            assert.isUndefined(row)
+        })
     })
 
     suite('first', () => {