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telegraph/middleware
====================

Telegraph-compatible middleware decorators.

1.0.0(10y ago)926MIT

Since May 29Compare

[ Source](https://github.com/telegraphp/telegraph.middleware)[ Packagist](https://packagist.org/packages/telegraph/middleware)[ Docs](https://github.com/telegraphp/telegraph.middleware)[ RSS](/packages/telegraph-middleware/feed)WikiDiscussions Synced yesterday

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Telegraph Middleware
====================

[](#telegraph-middleware)

This package includes the following Telegraph-compatible middleware:

- *ExceptionHandler* to handle exceptions from subsequent middleware
- *FormContentHandler* to deserialize the URL-encoded payload of a PSR-7 request
- *JsonContentHandler* to deserialize the JSON payload of a PSR-7 request
- *ResponseSender* to send a PSR-7 response
- *SessionHeadersHandler* to manage session headers "manually", instead of PHP managing them automatically

This package is installable and PSR-4 autoloadable via Composer as `telegraph/middleware`.

ExceptionHandler
----------------

[](#exceptionhandler)

Similarly, the *ExceptionHandler* does what it sound like: it catches any exceptions that bubble up through the subsequent middleware decorators.

The *ExceptionHandler* does nothing with the `$request` , and passes it directly to `$next` inside a `try/catch` block. If no exception bubbles up, it returns the `$response` from `$next`. However, if it catches an exception, it returns an entirely new `$response` object with the exception message and an HTTP 500 status code. It then returns the new `$response` object.

The *ExceptionHandler* is intended to go near the top of the Telegraph queue, but after the *ResponseSender*, so that the *ResponseSender* can then send the returned `$response`.

To add the *ExceptionHandler* to your queue, instantiate it directly with an empty $response implementation object ...

```
$queue[] = new \Telegraph\Middleware\ExceptionHandler(new ResponseImplementation());
```

... or use a `$resolver` of your choice to instantiate it from the `$queue`.

FormContentHandler
------------------

[](#formcontenthandler)

*FormContentHandler* works almost identically to *JsonContentHandler* (below), but parses payloads of requests that have `application/x-www-form-urlencoded` as the `Content-Type`.

JsonContentHandler
------------------

[](#jsoncontenthandler)

Again, the *JsonContentHandler* does what it sounds like: it deserializes the JSON payload of a PSR-7 request object and makes the parameters available in subsequent middleware decorators.

The *JsonContentHandler* checks the incoming request for a method other than `GET` and for an `application/json` or `application/vnd.api+json` `Content-Type`header. If it finds both of these, it parses the JSON and makes it available as the *parsed body* of the `$request` before passing it to `$next`. If the method is `GET` or the `Content-Type` header defines a different mime type, the *JsonContentHandler* ignores the `$request` and continues the chain.

To add the *JsonContentHandler* to your queue, instantiate it directly...

```
$queue[] = new \Telegraph\Middleware\JsonContentHandler();
```

... or use a `$resolver` of your choice to instantiate it from the `$queue`.

To access the decoded parameters in subsequent middleware, use the `getParsedBody()` method of the `$request`

```
$decodedJsonData = $request->getParsedBody();
```

ResponseSender
--------------

[](#responsesender)

The *ResponseSender* does just what it sounds like: it sends the PSR-7 response object.

The *ResponseSender* does nothing with the `$request`, passing it immediately to `$next`. Afterwards, it takes the returned `$response` and sends it using `header()` and `echo`, and returns the sent `$response`.

The *ResponseSender* is intended to go at the top of the Telegraph queue, so that it is the middleware with the last opportunity to do something with the returned response.

To add the *ResponseSender* to your Telegraph queue, instantiate it directly ...

```
$queue[] = new \Telegraph\Middleware\ResponseSender();
```

... or use a `$resolver` of your choice to instantiate it from the `$queue`.

SessionHeadersHandler
---------------------

[](#sessionheadershandler)

Normally, PHP will send out headers for you automatically when you call `session_start()`. However, this means the headers are not being sent as part of the PSR-7 response object, and are thus outside your control. This handler puts them back under your control by placing the relevant headers in the PSR-7 response; its behavior is almost identical to the native PHP automatic session headers behavior.

> NOTE: For this middleware to work, you **must** disable the PHP session header management ini settings. For example:
>
> ```
> ini_set('session.use_trans_sid', false);
> ini_set('session.use_cookies', false);
> ini_set('session.use_only_cookies', true);
> ini_set('session.cache_limiter', '');
>
> ```
>
>
>
> If you do not, the handler will throw a RuntimeException.

To add the *SessionHeadersHandler* to your queue, instantiate it directly...

```
$queue[] = new \Telegraph\Middleware\SessionHeadersHandler();
```

... or use a `$resolver` of your choice to instantiate it from the `$queue`.

When instantiating, you can pass a [cache limiter](http://php.net/session_cache_limiter) value as the first constructor parameter. The allowed values are 'nocache', 'public', 'private\_no\_cache', or 'priviate'. If you want no cache limiter header at all, pass an empty string ''. The default is 'nocache'.

You can also pass a [cache expire](http://php.net/session_cache_expire) value, in minutes, as the second constructor parameter. The default is 180 minutes.

###  Health Score

28

—

LowBetter than 52% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity12

Limited adoption so far

Community6

Small or concentrated contributor base

Maturity63

Established project with proven stability

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~1 days

Total

2

Last Release

3682d ago

### Community

Maintainers

![](https://avatars.githubusercontent.com/u/25754?v=4)[Paul M. Jones](/maintainers/pmjones)[@pmjones](https://github.com/pmjones)

---

Top Contributors

[![pavarnos](https://avatars.githubusercontent.com/u/589595?v=4)](https://github.com/pavarnos "pavarnos (1 commits)")

### Embed Badge

![Health badge](/badges/telegraph-middleware/health.svg)

```
[![Health](https://phpackages.com/badges/telegraph-middleware/health.svg)](https://phpackages.com/packages/telegraph-middleware)
```

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