keisatou/useful plackup one liners

## useful plackup one liners
# see the following site for details: http://bayashi.net/static/slide/20131120/index.html

# 1
$ plackup -e 'sub {
  [ 200, [], ["OK"] ]
}'
$ curl http://localhost:5000/
OK

# 2
$ plackup -e 'sub {
 [ 200,
  ["Content-Type" => "text/html"],
  ["<html><head><head><body>HTML</body></html>"]
 ]
}'
$ curl http://localhost:5000/
<html><head><head><body>HTML</body></html>

# 3
$ plackup -e 'sub {
  [ 200,
    ["Content-Type" => "application/json"],
    [ qq|{"friend": 0}| ]
  ]
}'
$ curl http://localhost:5000/
{friend: 0}

# 4
$ plackup -MDDP -e 'sub {
  [ 200, [], [p(@_)] ]
}'
$ curl http://localhost:5000/
[
  [0] {
    HTTP_ACCEPT            "*/*",
    HTTP_HOST              "localhost:5000",
    HTTP_USER_AGENT        "curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5",
    PATH_INFO              "/",
    psgi.errors            *main::STDERR  (read/write, layers: unix perlio),
...

# 5
$ plackup -s Starlet -e 'sub {
  [ 200, [], [$$] ]
}'
$ curl http://localhost:5000/
29045

$ curl http://localhost:5000/
29046

$ curl -I http://localhost:5000/
HTTP/1.0 200 OK
Date: Wed, 20 Nov 2013 08:56:48 GMT
Server: Plack::Handler::Starlet


# Plack::Middleware::* memo
DebugRequestParams
REPL
InteractiveDebugger

# Plack::App::* とかにも便利なモジュールあるらしい
## User-agentから色々判定
$ plackup -MDDP -e '
  enable "Woothee";
  sub {
     [ 200, [], [p(@_)] ]
  }
'
$ curl http://localhost:5000/

psgix.woothee          {
    category   "UNKNOWN",
    name       "UNKNOWN",
    os         "UNKNOWN",
    vendor     "UNKNOWN",
    version    "UNKNOWN"
},
$ curl http://localhost:5000/ -A 'Googlebot'

psgix.woothee          {
    category   "crawler",
    name       "misc crawler",
    os         "UNKNOWN",
    vendor     "UNKNOWN",
    version    "UNKNOWN"
},
	# see the following site for details: http://bayashi.net/static/slide/20131120/index.html

	# 1
	$ plackup -e 'sub {
	[ 200, [], ["OK"] ]
	}'
	$ curl http://localhost:5000/
	OK

	# 2
	$ plackup -e 'sub {
	[ 200,
	["Content-Type" => "text/html"],
	["<html><head><head><body>HTML</body></html>"]
	]
	}'
	$ curl http://localhost:5000/
	<html><head><head><body>HTML</body></html>

	# 3
	$ plackup -e 'sub {
	[ 200,
	["Content-Type" => "application/json"],
	[ qq\|{"friend": 0}\| ]
	]
	}'
	$ curl http://localhost:5000/
	{friend: 0}

	# 4
	$ plackup -MDDP -e 'sub {
	[ 200, [], [p(@_)] ]
	}'
	$ curl http://localhost:5000/
	[
	[0] {
	HTTP_ACCEPT "/",
	HTTP_HOST "localhost:5000",
	HTTP_USER_AGENT "curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5",
	PATH_INFO "/",
	psgi.errors *main::STDERR (read/write, layers: unix perlio),
	...

	# 5
	$ plackup -s Starlet -e 'sub {
	[ 200, [], [$$] ]
	}'
	$ curl http://localhost:5000/
	29045

	$ curl http://localhost:5000/
	29046

	$ curl -I http://localhost:5000/
	HTTP/1.0 200 OK
	Date: Wed, 20 Nov 2013 08:56:48 GMT
	Server: Plack::Handler::Starlet



	# Plack::Middleware::* memo
	DebugRequestParams
	REPL
	InteractiveDebugger

	# Plack::App::* とかにも便利なモジュールあるらしい
	## User-agentから色々判定
	$ plackup -MDDP -e '
	enable "Woothee";
	sub {
	[ 200, [], [p(@_)] ]
	}
	'
	$ curl http://localhost:5000/

	psgix.woothee {
	category "UNKNOWN",
	name "UNKNOWN",
	os "UNKNOWN",
	vendor "UNKNOWN",
	version "UNKNOWN"
	},
	$ curl http://localhost:5000/ -A 'Googlebot'

	psgix.woothee {
	category "crawler",
	name "misc crawler",
	os "UNKNOWN",
	vendor "UNKNOWN",
	version "UNKNOWN"
	},