diff --git a/packages/server/src/api/controllers/row/ExternalRequest.ts b/packages/server/src/api/controllers/row/ExternalRequest.ts
index 2226dc99be..af199561dc 100644
--- a/packages/server/src/api/controllers/row/ExternalRequest.ts
+++ b/packages/server/src/api/controllers/row/ExternalRequest.ts
@@ -1,4 +1,5 @@
 import {
+  FilterTypes,
   IncludeRelationships,
   Operation,
   PaginationJson,
@@ -118,8 +119,13 @@ module External {
     }
     // check the row and filters to make sure they aren't a key of some sort
     if (config.filters) {
-      for (let filter of Object.values(config.filters)) {
-        if (typeof filter !== "object" || Object.keys(filter).length === 0) {
+      for (let [key, filter] of Object.entries(config.filters)) {
+        // oneOf is an array, don't iterate it
+        if (
+          typeof filter !== "object" ||
+          Object.keys(filter).length === 0 ||
+          key === FilterTypes.ONE_OF
+        ) {
           continue
         }
         iterateObject(filter)
diff --git a/packages/server/src/definitions/datasource.ts b/packages/server/src/definitions/datasource.ts
index 3760f54f2c..eb65ac994f 100644
--- a/packages/server/src/definitions/datasource.ts
+++ b/packages/server/src/definitions/datasource.ts
@@ -54,6 +54,17 @@ export enum IncludeRelationships {
   EXCLUDE = 0,
 }
 
+export enum FilterTypes {
+  STRING = "string",
+  FUZZY = "fuzzy",
+  RANGE = "range",
+  EQUAL = "equal",
+  NOT_EQUAL = "notEqual",
+  EMPTY = "empty",
+  NOT_EMPTY = "notEmpty",
+  ONE_OF = "oneOf",
+}
+
 export interface QueryDefinition {
   type: QueryTypes
   displayName?: string
diff --git a/packages/server/src/integrations/base/sql.ts b/packages/server/src/integrations/base/sql.ts
index 471774db3d..1f733ac135 100644
--- a/packages/server/src/integrations/base/sql.ts
+++ b/packages/server/src/integrations/base/sql.ts
@@ -93,7 +93,7 @@ class InternalBuilder {
     if (filters.oneOf) {
       iterate(filters.oneOf, (key, array) => {
         const fnc = allOr ? "orWhereIn" : "whereIn"
-        query = query[fnc](key, array)
+        query = query[fnc](key, Array.isArray(array) ? array : [array])
       })
     }
     if (filters.string) {