savinmikhail/symfony-profiler-response-bundle

Symfony Web Profiler panel to display JSON/text response bodies with size limits and guards (dev-only)

v0.1.2 2025-10-18 10:42 UTC

Requires

• php: >=8.1
• symfony/config: ^5.4 || ^6.0 || ^7.0
• symfony/dependency-injection: ^5.4 || ^6.0 || ^7.0
• symfony/http-foundation: ^5.4 || ^6.0 || ^7.0
• symfony/http-kernel: ^5.4 || ^6.0 || ^7.0
• symfony/yaml: ^5.4 || ^6.0 || ^7.0

Requires (Dev)

• bamarni/composer-bin-plugin: ^1.8
• symfony/framework-bundle: ^5.4 || ^6.0 || ^7.0
• symfony/routing: ^5.4 || ^6.0 || ^7.0
• symfony/web-profiler-bundle: ^5.4 || ^6.0 || ^7.0

MIT

README

Symfony Profiler Response Bundle

Dev-only Symfony bundle that adds a "Response Body" panel to the Web Profiler, showing JSON/text response payloads with size limits and sensible guards.

Features

• Captures response body for textual and JSON-like MIME types
• Skips streamed/binary responses to avoid breaking downloads
• Truncates large payloads (default 256 KB) to protect the toolbar
• Pretty-prints JSON when possible

Installation

1. composer req --dev savinmikhail/symfony-profiler-response-bundle
2. Register the bundle in your app (though flex should do it for you):

// config/bundles.php
return [
    // ...
    SavinMikhail\\ResponseProfilerBundle\\ResponseProfilerBundle::class => ['dev' => true],
];

1. Optional config (dev): config/packages/dev/response_profiler.yaml

response_profiler:
  enabled: true
  max_length: 262144           # bytes (256 KB)
  allowed_mime_types:
    - application/json
    - application/ld+json
    - application/problem+json
    - application/vnd.api+json
    - text/plain
    - text/json

Usage

• In the Web Profiler, open any request and look for the new "Response Body" tab.
• The toolbar badge shows MIME and size; the panel shows headers and the (pretty-printed) body, truncated if oversized.

Appearance

Notes

• This bundle is designed for development. Do not enable in production.
• Streamed and binary responses are ignored.
• Pretty-printing of very large JSON may be skipped when payloads are huge.