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. Configuration (config/packages/response_profiler.yaml) is installed automatically by Flex and scoped to dev via when@dev. Adjust the values to taste:

when@dev:
    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
            - application/x-ndjson

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.