/ 
PAGI-FastAPI-v0.0.1
/ PAGI::FastAPI::Depends

NAME

PAGI::FastAPI::Depends - Dependency Injection Wrapper for PAGI::FastAPI

VERSION

Version v0.0.1

SYNOPSIS

use PAGI::FastAPI::Depends qw(Depends);

my $get_db = async sub ($c) {
    return My::DB->connect;
};

my $auth_check = async sub ($c) {
    my $token = $c->header('Authorization');
    die "Unauthorized" unless $token;
};

$app->get('/items',
    dependencies => [
        Depends($get_db, key => 'db'), # Store result in $c->stash->{db}
        Depends($auth_check),          # Execution guard dependency
    ],
    handler => async sub ($c) {
        my $db = $c->stash->{db};
        return { status => 'ok' };
    }
);

DESCRIPTION

PAGI::FastAPI::Depends provides a lightweight container object for wrapping async dependency subroutines in PAGI::FastAPI.

When registered on a route, dependencies execute asynchronously before the primary route handler. If a key option is specified, the return value of the dependency is automatically injected into the request context's stash ($c->stash->{$key}).

FUNCTIONS

Depends($code_ref, [%options])

Exportable helper function that constructs a new PAGI::FastAPI::Depends instance.

my $dep = Depends($code_ref, key => 'user');

Options:

key - Optional scalar string key under which the dependency's return value will be stored in $c->stash.

METHODS

new($code_ref, [%options])

Constructs a new PAGI::FastAPI::Depends object instance. Dies if $code_ref is not a CODE reference.

code()

Returns the underlying code reference for the dependency subroutine.

key()

Returns the stash key string associated with the dependency, or undef if none was defined.

AUTHOR

Mohammad Sajid Anwar, <mohammad.anwar at yahoo.com>

REPOSITORY

https://github.com/manwar/PAGI-FastAPI

BUGS

Please report any bugs or feature requests through the web interface at https://github.com/manwar/PAGI-FastAPI/issues. I will be notified and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.

perldoc PAGI::FastAPI::Depends

You can also look for information at:

LICENSE AND COPYRIGHT

Copyright (C) 2026 Mohammad Sajid Anwar.

This program is free software; you can redistribute it and/or modify it under the terms of the Artistic License (2.0). You may obtain a copy of the full license at:

http://www.perlfoundation.org/artistic_license_2_0

Any use, modification, and distribution of the Standard or Modified Versions is governed by this Artistic License. By using, modifying or distributing the Package, you accept this license. Do not use, modify, or distribute the Package, if you do not accept this license.

If your Modified Version has been derived from a Modified Version made by someone other than you, you are nevertheless required to ensure that your Modified Version complies with the requirements of this license.

This license does not grant you the right to use any trademark, service mark, tradename, or logo of the Copyright Holder.

This license includes the non-exclusive, worldwide, free-of-charge patent license to make, have made, use, offer to sell, sell, import and otherwise transfer the Package with respect to any patent claims licensable by the Copyright Holder that are necessarily infringed by the Package. If you institute patent litigation (including a cross-claim or counterclaim) against any party alleging that the Package constitutes direct or contributory patent infringement, then this Artistic License to you shall terminate on the date that such litigation is filed.

Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES. THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.