feat(query-parser): allow falsy indentation, default to 2 space in toJSString, deprecate stringify

packages/query-parser/src/index.spec.ts

@@ -16,6 +16,7 @@ import {
   parseProject,
   parseSort,
   stringify,
+  toJSString,
   DEFAULT_LIMIT,
   DEFAULT_MAX_TIME_MS,
   DEFAULT_SKIP,
@@ -327,6 +328,53 @@ describe('mongodb-query-parser', function () {
     });
   });
 
+  describe('toJSString', function () {
+    it('should default to two spaces', function () {
+      assert.equal(
+        toJSString({ a: { $exists: true } }),
+        `{
+  a: {
+    $exists: true
+  }
+}`
+      );
+    });
+
+    it('should allow falsy indentation', function () {
+      assert.equal(
+        toJSString({ a: { $exists: true } }, 0),
+        '{a:{$exists:true}}'
+      );
+    });
+
+    it('allows passing custom indent', function () {
+      assert.equal(
+        toJSString({ a: { $exists: true } }, 'pineapple'),
+        `{
+pineapplea: {
+pineapplepineapple$exists: true
+pineapple}
+}`
+      );
+    });
+
+    it('retains double spaces and new lines in strings', function () {
+      assert.equal(
+        toJSString(
+          {
+            a: {
+              name: `multi-line with s  p    a   c
+
+e  s`,
+            },
+          },
+          0
+        ),
+        "{a:{name:'multi-line with s  p    a   c\\n        \\ne  s'}}"
+      );
+    });
+  });
+
   describe('stringify', function () {
     it('should work', function () {
       const res = parseFilter('{_id: ObjectId("58c33a794d08b991e3648fd2")}');
@@ -337,6 +385,20 @@ describe('mongodb-query-parser', function () {
       assert.equal(stringify({ a: { $exists: true } }), '{a: {$exists: true}}');
     });
 
+    // stringify is now deprecated as a result of this.
+    it('changes multi-space values', function () {
+      assert.equal(
+        stringify({
+          a: {
+            name: `multi-line with s  p    a   c
+
+e  s`,
+          },
+        }),
+        "{a: {name: 'multi-line with s p a c\\n \\ne s'}}"
+      );
+    });
+
     context('when providing a long', function () {
       it('correctly converts to NumberLong', function () {
         const stringified = stringify({ test: bson.Long.fromNumber(5) });

packages/query-parser/src/stringify.ts

@@ -139,7 +139,7 @@ const BSON_TO_JS_STRING = {
 /** @public */
 export function toJSString(
   obj: unknown,
-  ind?: Parameters<typeof JSON.stringify>[2]
+  ind: Parameters<typeof JSON.stringify>[2] = 2
 ): string | undefined {
   return toJavascriptString(
     obj,
@@ -151,13 +151,18 @@ export function toJSString(
       }
       return toJs(value);
     },
-    ind || ' '
+    ind
   );
 }
 
-/** @public */
+/**
+ * @public
+ * @deprecated
+ * This function is deprecated and not recommended as it replaces
+ * double spaces, newline values, and indents with only one space.
+ **/
 export function stringify(obj: unknown): string | undefined {
-  return toJSString(obj)
+  return toJSString(obj, 1)
     ?.replace(/ ?\n ? ?/g, '')
     .replace(/ {2,}/g, ' ');
 }