1PLACKUP(1)            User Contributed Perl Documentation           PLACKUP(1)
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NAME

6       plackup - Run PSGI application with Plack handlers
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SYNOPSIS

9         # read your app from app.psgi file
10         plackup
11
12         # choose .psgi file from ARGV[0] (or with -a option)
13         plackup hello.psgi
14
15         # switch server implementation with --server (or -s)
16         plackup --server HTTP::Server::Simple --port 9090 --host 127.0.0.1 test.psgi
17
18         # use UNIX socket to run FCGI daemon
19         plackup -s FCGI --listen /tmp/fcgi.sock myapp.psgi
20
21         # launch FCGI external server on port 9090
22         plackup -s FCGI --port 9090
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DESCRIPTION

25       plackup is a command line utility to run PSGI applications from the
26       command line.
27
28       plackup automatically figures out the environment it is run in, and
29       runs your application in that environment. FastCGI, CGI, AnyEvent and
30       others can all be detected. See Plack::Loader for the authoritative
31       list.
32
33       "plackup" assumes you have an "app.psgi" script in your current
34       directory.  The last statement of "app.psgi" should be a code reference
35       that is a PSGI application:
36
37         #!/usr/bin/perl
38         use MyApp;
39         my $application = MyApp->new;
40         my $app = sub { $application->run_psgi(@_) };
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ARGUMENTS

43       .psgi
44             plackup --host 127.0.0.1 --port 9090 /path/to/app.psgi
45
46           The first non-option argument is used as a ".psgi" file path. You
47           can also set this path with "-a" or "--app". If omitted, the
48           default file path is "app.psgi" in the current directory.
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OPTIONS

51       -a, --app
52           Specifies the full path to a ".psgi" script. You may alternately
53           provide this path as the first argument to "plackup".
54
55       -e  Evaluates the given perl code as a PSGI app, much like perl's "-e"
56           option:
57
58             plackup -e 'sub { my $env = shift; return [ ... ] }'
59
60           It is also handy when you want to run a custom application like
61           Plack::App::*.
62
63             plackup -MPlack::App::File -e 'Plack::App::File->new(...)->to_app'
64
65           You can also specify "-e" option with ".psgi" file path to wrap the
66           application with middleware configuration from the command line.
67           You can also use Plack::Builder DSL syntax inside "-e" code. For
68           example:
69
70             plackup -e 'enable "Auth::Basic", authenticator => ...;' myapp.psgi
71
72           is equivalent to the PSGI application:
73
74             use Plack::Builder;
75             use Plack::Util;
76
77             builder {
78                 enable "Auth::Basic", authenticator => ...;
79                 Plack::Util::load_psgi("myapp.psgi");
80             };
81
82           Note that when you use "-e" option to enable middleware, plackup
83           doesn't assume the implicit "app.psgi" path. You must either pass
84           the path to your ".psgi" file in the command line arguments or load
85           the application inside "-e" after the "enable".
86
87             plackup                                # Runs app.psgi
88             plackup -e 'enable "Foo"'              # Doesn't work!
89             plackup -e 'enable "Foo"' app.psgi     # Works
90             plackup -e 'enable "Foo"; sub { ... }' # Works
91
92       -o, --host
93           Binds to a TCP interface. Defaults to undef, which lets most server
94           backends bind to the any (*) interface. This option is only valid
95           for servers which support TCP sockets.
96
97       -p, --port
98           Binds to a TCP port. Defaults to 5000. This option is only valid
99           for servers which support TCP sockets.
100
101           Note: default port 5000 may conflict with AirPlay server on MacOS
102           12 (Monterey) or later.
103
104       -s, --server, the "PLACK_SERVER" environment variable
105           Selects a specific server implementation to run on. When provided,
106           the "-s" or "--server" flag will be preferred over the environment
107           variable.
108
109           If no option is given, plackup will try to detect the best server
110           implementation based on the environment variables as well as
111           modules loaded by your application in %INC. See Plack::Loader for
112           details.
113
114       -S, --socket
115           Listens on a UNIX domain socket path. Defaults to undef. This
116           option is only valid for servers which support UNIX sockets.
117
118       -l, --listen
119           Listens on one or more addresses, whether "HOST:PORT", ":PORT", or
120           "PATH" (without colons). You may use this option multiple times to
121           listen on multiple addresses, but the server will decide whether it
122           supports multiple interfaces.
123
124       -D, --daemonize
125           Makes the process run in the background. It's up to the backend
126           server/handler implementation whether this option is respected or
127           not.
128
129       -I  Specifies Perl library include paths, like "perl"'s -I option. You
130           may add multiple paths by using this option multiple times.
131
132       -M  Loads the named modules before loading the app's code. You may load
133           multiple modules by using this option multiple times.
134
135           In combination with "-r" or "-R" may not have the desired restart
136           effect when the loaded module is changed in the development
137           directory. To avoid this problem you need to load the module with
138           the app code using "-e".
139
140       -E, --env, the "PLACK_ENV" environment variable.
141           Specifies the environment option. Setting this value with "-E" or
142           "--env" also writes to the "PLACK_ENV" environment variable. This
143           allows applications or frameworks to tell which environment setting
144           the application is running on.
145
146             # These two are the same
147             plackup -E deployment
148             env PLACK_ENV=deployment plackup
149
150           Common values are "development", "deployment", and "test". The
151           default value is "development", which causes "plackup" to load the
152           middleware components: AccessLog, StackTrace, and Lint unless
153           "--no-default-middleware" is set.
154
155       --no-default-middleware
156           This prevents loading the default middleware stack even when Plack
157           environment (i.e. "-E" or "PLACK_ENV") is set to "development".
158
159       -r, --reload
160           Makes plackup restart the server whenever a file in your
161           development directory changes. This option by default watches the
162           "lib" directory and the base directory where .psgi file is located.
163           Use "-R" to watch other directories.
164
165           Reloading will delay the compilation of your application. Automatic
166           server detection (see "-s" above) may not behave as you expect, if
167           plackup needs to scan your application for the modules it uses.
168           Avoid problems by specifying "-s" explicitly when using "-r" or
169           "-R".
170
171           To avoid problems with changes to preloaded modules see
172           documentation for "-M".
173
174       -R, --Reload
175           Makes plackup restart the server whenever a file in any of the
176           given directories changes. "-R" and "--Reload" take a comma-
177           separated list of paths:
178
179             plackup -R /path/to/project/lib,/path/to/project/templates
180
181           To avoid problems with changes to preloaded modules see
182           documentation for "-M".
183
184       -L, --loader
185           Specifies the server loading subclass that implements how to run
186           the server.  Available options are Plack::Loader (default),
187           Restarter (automatically set when "-r" or "-R" is used), Delayed,
188           and Shotgun.
189
190           See Plack::Loader::Delayed and Plack::Loader::Shotgun for more
191           details.
192
193       --access-log
194           Specifies the pathname of a file where the access log should be
195           written.  By default, in the development environment access logs
196           will go to STDERR.
197
198       --path
199           Specify the root path of your app ("SCRIPT_NAME" in PSGI env) to
200           run. The following two commands are roughly the same.
201
202             plackup --path /foo app.psgi
203             plackup -e 'mount "/foo" => Plack::Util::load_psgi("app.psgi")'
204
205       Other options that starts with "--" are passed through to the backend
206       server.  See each Plack::Handler backend's documentation for more
207       details on their available options.
208

SEE ALSO

210       Plack::Runner Plack::Loader
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214perl v5.36.0                      2023-01-20                        PLACKUP(1)
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