From 40298b96a468a1c7d2e9058c5b73765fd83afe8b Mon Sep 17 00:00:00 2001
From: Pooja <pooja@usebruno.com>
Date: Wed, 1 Apr 2026 20:08:31 +0530
Subject: [PATCH]  fix: preserve query params without values by not appending =
 sign (#7567)

* fix: preserve query params without values by not appending = sign

* fix: parseCurlCommand test
---
 .../src/utils/curl/parse-curl.spec.js         |  2 +-
 .../bruno-common/src/utils/url/index.spec.ts  | 43 ++++++++++++++++++-
 packages/bruno-common/src/utils/url/index.ts  | 12 +++++-
 3 files changed, 53 insertions(+), 4 deletions(-)

diff --git a/packages/bruno-app/src/utils/curl/parse-curl.spec.js b/packages/bruno-app/src/utils/curl/parse-curl.spec.js
index 7f24aba78..88629fae1 100644
--- a/packages/bruno-app/src/utils/curl/parse-curl.spec.js
+++ b/packages/bruno-app/src/utils/curl/parse-curl.spec.js
@@ -902,7 +902,7 @@ describe('parseCurlCommand', () => {
           { name: 'test', value: 'urlquery' },
           { name: 'name', value: 'John%20Doe' },
           { name: 'email', value: 'john@example.com' },
-          { name: 'hello', value: '' }
+          { name: 'hello', value: undefined }
         ]
       });
     });
diff --git a/packages/bruno-common/src/utils/url/index.spec.ts b/packages/bruno-common/src/utils/url/index.spec.ts
index c36c4d75d..178297b83 100644
--- a/packages/bruno-common/src/utils/url/index.spec.ts
+++ b/packages/bruno-common/src/utils/url/index.spec.ts
@@ -50,6 +50,18 @@ describe('encodeUrl', () => {
       expect(encodeUrl(url)).toBe(expected);
     });
 
+    it('should handle query parameters without values (no = sign)', () => {
+      const url = 'https://example.com/api?flag&age=25&verbose';
+      const expected = 'https://example.com/api?flag&age=25&verbose';
+      expect(encodeUrl(url)).toBe(expected);
+    });
+
+    it('should handle mixed empty-value and no-value parameters', () => {
+      const url = 'https://example.com/api?seat=&table=2&flag';
+      const expected = 'https://example.com/api?seat=&table=2&flag';
+      expect(encodeUrl(url)).toBe(expected);
+    });
+
     it('should encode query parameters with pipe operator', () => {
       const url = 'https://example.com/api?filter=status|active&sort=name|asc&tags=frontend|backend|api';
       const expected = 'https://example.com/api?filter=status%7Cactive&sort=name%7Casc&tags=frontend%7Cbackend%7Capi';
@@ -159,7 +171,7 @@ describe('parseQueryParams', () => {
     expect(result).toEqual([]);
   });
 
-  it('should handle query parameters with empty values', () => {
+  it('should handle query parameters with empty values (has = sign)', () => {
     const queryString = 'name=&age=25&active=';
     const result = parseQueryParams(queryString);
     expect(result).toEqual([
@@ -169,6 +181,16 @@ describe('parseQueryParams', () => {
     ]);
   });
 
+  it('should handle query parameters without values (no = sign)', () => {
+    const queryString = 'flag&age=25&verbose';
+    const result = parseQueryParams(queryString);
+    expect(result).toEqual([
+      { name: 'flag', value: undefined },
+      { name: 'age', value: '25' },
+      { name: 'verbose', value: undefined }
+    ]);
+  });
+
   it('should extract query parameters with pipe operator', () => {
     const queryString = 'filter=status|active&sort=name|asc&tags=frontend|backend';
     const result = parseQueryParams(queryString);
@@ -218,4 +240,23 @@ describe('buildQueryString', () => {
     const result = buildQueryString(params, { encode: false });
     expect(result).toBe('filter=status|active&sort=name|asc');
   });
+
+  it('should omit = for params with undefined value', () => {
+    const params = [
+      { name: 'flag', value: undefined },
+      { name: 'age', value: '25' },
+      { name: 'verbose' }
+    ];
+    const result = buildQueryString(params);
+    expect(result).toBe('flag&age=25&verbose');
+  });
+
+  it('should include = for params with empty string value', () => {
+    const params = [
+      { name: 'seat', value: '' },
+      { name: 'table', value: '2' }
+    ];
+    const result = buildQueryString(params);
+    expect(result).toBe('seat=&table=2');
+  });
 });
diff --git a/packages/bruno-common/src/utils/url/index.ts b/packages/bruno-common/src/utils/url/index.ts
index 58dabb018..466dca59f 100644
--- a/packages/bruno-common/src/utils/url/index.ts
+++ b/packages/bruno-common/src/utils/url/index.ts
@@ -16,8 +16,12 @@ function buildQueryString(paramsArray: QueryParam[], { encode = false }: BuildQu
     .filter(({ name }) => typeof name === 'string' && name.trim().length > 0)
     .map(({ name, value }) => {
       const finalName = encode ? encodeURIComponent(name) : name;
-      const finalValue = encode ? encodeURIComponent(value ?? '') : (value ?? '');
 
+      if (value === undefined) {
+        return finalName;
+      }
+
+      const finalValue = encode ? encodeURIComponent(value) : value;
       return `${finalName}=${finalValue}`;
     })
     .join('&');
@@ -39,9 +43,13 @@ function parseQueryParams(query: string, { decode = false }: ExtractQueryParamsO
         return null;
       }
 
+      // Distinguish between ?param (no '=' at all) and ?param= (has '=' with empty value)
+      const hasEqualsSign = pair.includes('=');
+      const value = hasEqualsSign ? (decode ? decodeURIComponent(valueParts.join('=')) : valueParts.join('=')) : undefined;
+
       return {
         name: decode ? decodeURIComponent(name) : name,
-        value: decode ? decodeURIComponent(valueParts.join('=')) : valueParts.join('=')
+        value
       };
     }).filter((param): param is NonNullable<typeof param> => param !== null);