diff --git a/qqq-backend-module-api/src/main/java/com/kingsrook/qqq/backend/module/api/utils/QueryStringParser.java b/qqq-backend-module-api/src/main/java/com/kingsrook/qqq/backend/module/api/utils/QueryStringParser.java
new file mode 100644
index 00000000..af9c0e76
--- /dev/null
+++ b/qqq-backend-module-api/src/main/java/com/kingsrook/qqq/backend/module/api/utils/QueryStringParser.java
@@ -0,0 +1,81 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2023. Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see .
+ */
+
+package com.kingsrook.qqq.backend.module.api.utils;
+
+
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import com.kingsrook.qqq.backend.core.utils.StringUtils;
+
+
+/*******************************************************************************
+ ** Help parse query strings into maps.
+ *******************************************************************************/
+public class QueryStringParser
+{
+
+ /*******************************************************************************
+ **
+ *******************************************************************************/
+ public static Map parseQueryStringSingleValuePerKey(String queryString)
+ {
+ Map rs = new LinkedHashMap<>();
+ if(StringUtils.hasContent(queryString))
+ {
+ for(String nameValuePair : queryString.split("&"))
+ {
+ String[] nameAndValue = nameValuePair.split("=", 2);
+ String name = nameAndValue[0];
+ String value = nameAndValue.length > 1 ? nameAndValue[1] : "";
+ rs.put(name, value);
+ }
+ }
+
+ return (rs);
+ }
+
+
+
+ /*******************************************************************************
+ **
+ *******************************************************************************/
+ public static Map> parseQueryStringMultiValuePerKey(String queryString)
+ {
+ Map> rs = new LinkedHashMap<>();
+ if(StringUtils.hasContent(queryString))
+ {
+ for(String nameValuePair : queryString.split("&"))
+ {
+ String[] nameAndValue = nameValuePair.split("=", 2);
+ String name = nameAndValue[0];
+ String value = nameAndValue.length > 1 ? nameAndValue[1] : "";
+ rs.computeIfAbsent(name, (key) -> new ArrayList<>());
+ rs.get(name).add(value);
+ }
+ }
+
+ return (rs);
+ }
+
+}
diff --git a/qqq-backend-module-api/src/test/java/com/kingsrook/qqq/backend/module/api/utils/QueryStringParserTest.java b/qqq-backend-module-api/src/test/java/com/kingsrook/qqq/backend/module/api/utils/QueryStringParserTest.java
new file mode 100644
index 00000000..c9cad4b8
--- /dev/null
+++ b/qqq-backend-module-api/src/test/java/com/kingsrook/qqq/backend/module/api/utils/QueryStringParserTest.java
@@ -0,0 +1,60 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2023. Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see .
+ */
+
+package com.kingsrook.qqq.backend.module.api.utils;
+
+
+import java.util.List;
+import java.util.Map;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+
+/*******************************************************************************
+ ** Unit test for com.kingsrook.qqq.backend.module.api.utils.QueryStringParser
+ *******************************************************************************/
+class QueryStringParserTest
+{
+
+ /*******************************************************************************
+ **
+ *******************************************************************************/
+ @Test
+ void test()
+ {
+ assertEquals(Map.of(), QueryStringParser.parseQueryStringSingleValuePerKey(null));
+ assertEquals(Map.of(), QueryStringParser.parseQueryStringSingleValuePerKey(""));
+ assertEquals(Map.of("foo", "bar"), QueryStringParser.parseQueryStringSingleValuePerKey("foo=bar"));
+ assertEquals(Map.of("foo", "bar=baz"), QueryStringParser.parseQueryStringSingleValuePerKey("foo=bar=baz"));
+ assertEquals(Map.of("foo", "bar", "baz", ""), QueryStringParser.parseQueryStringSingleValuePerKey("foo=bar&baz="));
+ assertEquals(Map.of("foo", "bar", "baz", "1"), QueryStringParser.parseQueryStringSingleValuePerKey("foo=bar&baz=1"));
+
+ assertEquals(Map.of(), QueryStringParser.parseQueryStringMultiValuePerKey(null));
+ assertEquals(Map.of(), QueryStringParser.parseQueryStringMultiValuePerKey(""));
+ assertEquals(Map.of("foo", List.of("bar")), QueryStringParser.parseQueryStringMultiValuePerKey("foo=bar"));
+ assertEquals(Map.of("foo", List.of("bar"), "baz", List.of("")), QueryStringParser.parseQueryStringMultiValuePerKey("foo=bar&baz="));
+ assertEquals(Map.of("foo", List.of("bar"), "baz", List.of("1")), QueryStringParser.parseQueryStringMultiValuePerKey("foo=bar&baz=1"));
+
+ assertEquals(Map.of("foo", List.of("bar", "baz")), QueryStringParser.parseQueryStringMultiValuePerKey("foo=bar&foo=baz"));
+ assertEquals(Map.of("foo", List.of("bar", "baz"), "bar", List.of("1")), QueryStringParser.parseQueryStringMultiValuePerKey("foo=bar&foo=baz&bar=1"));
+ }
+
+}
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