From c8c774db1527513c0515145655168c37158d620f Mon Sep 17 00:00:00 2001
From: Daniel Fugere <danielfugere28@gmail.com>
Date: Tue, 30 Jan 2024 09:31:13 -0800
Subject: [PATCH] add reverse param to query method (#67)

* enhancement: add reverse param to query method

closes issue #46

* Added test for reverse

---------

Co-authored-by: Aaron Cox <aaron@greymass.com>
---
 src/contract/table.ts                         |  4 ++++
 ...68b42051d704bf454c567035d80e7be11dfaf.json | 19 +++++++++++++++++++
 test/tests/table.ts                           | 10 ++++++++++
 3 files changed, 33 insertions(+)
 create mode 100644 test/data/requests/74068b42051d704bf454c567035d80e7be11dfaf.json

diff --git a/src/contract/table.ts b/src/contract/table.ts
index b204d1c..9d675a5 100644
--- a/src/contract/table.ts
+++ b/src/contract/table.ts
@@ -14,6 +14,7 @@ export interface QueryParams {
     to?: API.v1.TableIndexType | string | number
     maxRows?: number
     rowsPerAPIRequest?: number
+    reverse?: boolean
 }
 
 interface FieldToIndex {
@@ -123,6 +124,7 @@ export class Table<RowType = any> {
             lower_bound: wrapIndexValue(params.from),
             upper_bound: wrapIndexValue(params.to),
             limit: params.rowsPerAPIRequest || this.defaultRowLimit,
+            reverse: params.reverse,
         }
 
         if (params.index) {
@@ -173,6 +175,7 @@ export class Table<RowType = any> {
             index_position: params.index_position,
             key_type: params.key_type,
             json: false,
+            reverse: params.reverse,
         }
 
         if (params.index) {
@@ -259,6 +262,7 @@ export class Table<RowType = any> {
             lower_bound: wrapIndexValue(params.from),
             upper_bound: wrapIndexValue(params.to),
             limit: params.rowsPerAPIRequest || this.defaultRowLimit,
+            reverse: params.reverse,
         }
 
         return new TableScopeCursor({
diff --git a/test/data/requests/74068b42051d704bf454c567035d80e7be11dfaf.json b/test/data/requests/74068b42051d704bf454c567035d80e7be11dfaf.json
new file mode 100644
index 0000000..190a8c9
--- /dev/null
+++ b/test/data/requests/74068b42051d704bf454c567035d80e7be11dfaf.json
@@ -0,0 +1,19 @@
+{
+    "request": {
+        "path": "https://eos.greymass.com/v1/chain/get_table_rows",
+        "params": {
+            "method": "POST",
+            "body": "{\"json\":false,\"limit\":1000,\"table\":\"trending\",\"code\":\"decentiumorg\",\"scope\":\"decentiumorg\",\"key_type\":\"i64\",\"lower_bound\":\"5\",\"upper_bound\":\"6\",\"reverse\":true}"
+        }
+    },
+    "status": 200,
+    "json": {
+        "rows": [
+            "06000000000000000895010000000000104d76cca58c6534ca009b2e9baba662bfbfed5c000000006c958ee2037f9a9c039e4c50d4f9473dc7972fa19a2808d37d988f24cba96d0ff3b41474754673da3801598bc003cc70fbcc0a5dfc134b91db86ecbae70d497fd2f2e8bc32e31aa1aaee41c4e61d010000000000000000000000000000",
+            "05000000000000004190010000000000a02ecd5845b73055a02ecd5845b730557d41ec5c000090dae5a9904a039c9e9903de1a09302017b9bbe1ba8aec85617dd6513aaf4bc65e5e1e3663be34cd9cfaac00010000000000000000000000000000"
+        ],
+        "more": false,
+        "next_key": ""
+    },
+    "text": "{\"rows\":[\"06000000000000000895010000000000104d76cca58c6534ca009b2e9baba662bfbfed5c000000006c958ee2037f9a9c039e4c50d4f9473dc7972fa19a2808d37d988f24cba96d0ff3b41474754673da3801598bc003cc70fbcc0a5dfc134b91db86ecbae70d497fd2f2e8bc32e31aa1aaee41c4e61d010000000000000000000000000000\",\"05000000000000004190010000000000a02ecd5845b73055a02ecd5845b730557d41ec5c000090dae5a9904a039c9e9903de1a09302017b9bbe1ba8aec85617dd6513aaf4bc65e5e1e3663be34cd9cfaac00010000000000000000000000000000\"],\"more\":false,\"next_key\":\"\"}"
+}
\ No newline at end of file
diff --git a/test/tests/table.ts b/test/tests/table.ts
index 150e1c4..844da43 100644
--- a/test/tests/table.ts
+++ b/test/tests/table.ts
@@ -302,6 +302,16 @@ suite('Table', () => {
                 assert.equal(rowsSellTxtScope.length, 348)
             })
         })
+
+        test('reverse', async function () {
+            const tableRowCursor = decentiumTrendingTable.query({from: 5, to: 6, reverse: true})
+            tableRowCursor.reset()
+
+            assert.deepEqual(
+                Serializer.objectify(await tableRowCursor.next()).map((row) => row.id),
+                [6, 5]
+            )
+        })
     })
 
     suite('get', () => {