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NAME
Net::Twitter - A perl interface to the Twitter API
VERSION
This document describes Net::Twitter version 3.00002
SYNOPSIS
use Net::Twitter;
my $nt = Net::Twitter->new(
traits => [qw/API::REST/],
username => $user,
password => $password
);
my $result = $nt->update('Hello, world!');
eval {
my $statuses = $nt->friends_timeline({ since_id => $high_water, count => 100 });
for my $status ( @$statuses ) {
print "$status->{time} <$status->{user}{screen_name}> $status->{text}\n";
}
};
if ( my $err = $@ ) {
die $@ unless blessed $err && $err->isa('Net::Twitter::Error');
warn "HTTP Response Code: ", $err->code, "\n",
"HTTP Message......: ", $err->message, "\n",
"Twitter error.....: ", $err->error, "\n";
}
DESCRIPTION
This module provides a perl interface to the Twitter APIs. See
<http://apiwiki.twitter.com/Twitter-API-Documentation> for a full
description of the Twitter APIs.
METHODS AND ARGUMENTS
new This constructs a "Net::Twitter" object. It takes several named
parameters, all of them optional:
traits
An ARRAY ref of traits used to control which APIs the
constructed "Net::Twitter" object will support and how it
handles errors. Possible values are:
API::REST
Provides support for the Twitter REST API methods.
API::Search
Provides support for the Twitter Search API methods.
API::TwitterVision
Provides support for the TwitterVision API. See
<http://twittervision.com/api.html>.
WrapError
"Net::Twitter" normally throws exceptions on error. When
this trait is included, "Net::Twitter" returns undef when a
method fails and makes the error available through method
"get_error". This is the way all errors were handled in
Net::Twitter versions prior to version 3.00.
OAuth
The "OAuth" trait provides OAuth authentication rather than
the default Basic Authentication for Twitter API method
calls. See the "Authentication" section and
Net::Twitter::Role::OAuth for full documentation.
Legacy
This trait provides backwards compatibility to
"Net::Twitter" versions prior to 3.00. It implies the traits
"API::REST", "API::Search", "API::TwitterVision", and
"API::WrapError". It also provides additional functionality
to ensure consistent behavior for applications written for
use with legacy versions of "Net::Twitter".
In the current version, this trait is automatically included
if the "traits" option is not specified. This ensures
backwards compatibility for existing applications using
"Net::Twitter" versions prior to 3.00. See section "LEGACY
COMPATIBILITY" for more details.
Some examples of using the "traits" parameter in "new":
# provide support for *only* the REST API; throw exceptions on error
$nt = Net::Twitter->new(traits => ['API::REST']);
# provide support for both the REST and Search APIs; wrap errors
$nt = Net::Twitter->new(traits => [qw/API::REST API::Search WrapError/]);
# ensure full legacy support
$nt = Net::Twitter->new(traits => ['Legacy']);
# currently, these 2 calls to new are equivalent:
$nt = Net::Twitter->new();
$nt = Net::Twitter->new(traits => ['Legacy']);
legacy
A boolean. If set to 0, "new" constructs a "Net::Twitter" object
implementing the REST API and throws exceptions on API method
errors.
Net::Twitter->new(legacy => 0);
is a shortcut for:
Net::Twitter->new(traits => ['API::REST']);
If set to 1, "new" constructs a "Net::Twitter" object with the
"Legacy" trait.
Net::Twitter->new(legacy => 1);
is a shortcut for:
Net::Twitter->new(traits => ['Legacy']);
username
This is the screen name or email used to authenticate with
Twitter.
password
This is the password used to authenticate with Twitter.
clientname
The value for the "X-Twitter-Client-Name" HTTP header. It
defaults to "Perl Net::Twitter".
clientver
The value for the "X-Twitter-Client-Version" HTTP header. It
defaults to current version of the "Net::Twitter" module.
clienturl
The value for the "X-Twitter-Client-URL" HTTP header. It
defaults to the search.cpan.org page for the "Net::Twitter"
distribution.
useragent_class
The "LWP::UserAgent" compatible class used internally by
"Net::Twitter". It defaults to "LWP::UserAgent". For POE based
applications, consider using "LWP::UserAgent::POE".
useragent_args
An HASH ref of arguments to pass to constructor of the class
specified with "useragent_class", above. It defaults to {} (an
empty HASH ref).
useragent
The value for "User-Agent" HTTP header. It defaults to
"Net::Twitter/$VERSION (Perl)", where $VERSION is the current
version of "Net::Twitter".
source
The value used in the "source" parameter of API method calls. It
is currently only used in the "update" method in the REST API.
It defaults to "twitterpm". This results in the text "from
Net::Twitter" rather than "from web" for status messages posted
from "Net::Twitter" when displayed via the Twitter web
interface. The value for this parameter is provided by Twitter
when a Twitter application is registered. See
<http://apiwiki.twitter.com/FAQ#HowdoIget%E2%80%9CfromMyApp%E2%8
0%9DappendedtoupdatessentfrommyAPIapplication>.
apiurl
The URL for the Twitter API. This defaults to
"http://twitter.com". This option is available when the
"API::REST" trait is included.
apihost
A string containing the Twitter API host. It defaults to
"twitter.com:80". This option is available when the "API::REST"
trait is included.
apirealm
A string containing the Twitter API realm used for Basic
Authentication. It defaults to "Twitter API". This option is
available when the "API::REST" trait is included.
identica
If set to 1, "Net::Twitter" overrides the defaults for "apiurl",
"apihost", and "apirealm" to "http://identi.ca/api",
"identi.ca:80", and "Laconica API" respectively. It defaults to
0. This option is available when the "API::REST" trait is
included.
consumer_key
A string containing the OAuth consumer key provided by Twitter
when an application is registered. This option is available when
the "OAuth" trait is included.
consumer_secret
A string containing the OAuth consumer secret. This option is
available when the "OAuth" trait is included.
credentials($username, $password)
Set the credentials for Basic Authentication. This is helpful for
managing multiple accounts.
ua Provides access to the constructed user agent object used internally
by "Net::Twitter". Use it with caution.
AUTHENTICATION
Twitter currently provides authentication strategies: Basic
Authentication and OAuth. OAuth is officially in beta, however, Twitter
has expressed a desire to deprecate Basic Authentication in the future,
so consider using OAuth in your applications.
To set up Basic Authentication in "Net::Twitter", provide the "username"
and "password" options to "new" or call the "credentials" method.
To set up OAuth, include the "OAuth" trait and include the
"consumer_key" and "consumer_secret" options to "new". See
Net::Twitter::Role::OAuth for more information on using OAuth, including
examples.
API METHODS AND ARGUMENTS
Most Twitter API methods take parameters. All Net::Twitter API methods
will accept a HASH ref of named parameters as specified in the Twitter
API documentation. For convenience, many Net::Twitter methods accept
simple positional arguments as documented, below. The positional
parameter passing style is optional; you can always use the named
parameters in a hash ref if you prefer.
For example, the REST API method "update" has one required parameter,
"status". You can call "update" with a HASH ref argument:
$nt->update({ status => 'Hello world!' });
Or, you can use the convenient form:
$nt->update('Hello world!');
The "update" method also has an optional parameter,
"in_reply_to_status_id". To use it, you must use the HASH ref form:
$nt->update({ status => 'Hello world!', in_reply_to_status_id => $reply_to });
Convenience form is provided for the required parameters of all API
methods. So, these two calls are equivalent:
$nt->friendship_exists({ user_a => $fred, user_b => $barney });
$nt->friendship_exists($fred, $barney);
Many API methods have aliases. You can use the API method name, or any
of its aliases, as you prefer. For example, these calls are all
equivalent:
$nt->friendship_exists($fred, $barney);
$nt->relationship_exists($fred, $barney);
$nt->follows($fred, $barney);
Aliases support both the HASH ref and convenient forms:
$nt->follows({ user_a => $fred, user_b => $barney });
REST API Methods
These methods are provided when trait "API::REST" is included in the
"traits" option to "new".
Several of these methods accept a user ID as the "id" parameter. The
user ID can be either a screen name, or the users numeric ID. To
disambiguate, use the "screen_name" or "user_id" parameters, instead.
For example, These calls are equivalent:
$nt->create_friend('net_twitter'); # screen name
$nt->create_friend(1564061); # numeric ID
$nt->create_friend({ id => 'net_twitter' });
$nt->create_friend({ screen_name => 'net_twitter' });
$nt->create_friend({ user_id => 1564061 });
However user_id 911 and screen_name 911 are separate Twitter accounts.
These calls are NOT equivalent:
$nt->create_friend(911); # interpreted as screen name
$nt->create_friend({ user_id => 911 }); # screen name: richellis
Whenever the "id" parameter is required and "user_id" and "screen_name"
are also parameters, using any one of them satisfies the requirement.
block_exists
block_exists(id)
Parameters: id, user_id, screen_name
Required: id
Returns if the authenticating user is blocking a target user. Will
return the blocked user's object if a block exists, and error with
HTTP 404 response code otherwise.
Returns: BasicUser
blocking
blocking(page)
Parameters: page
Required: *none*
Returns an array of user objects that the authenticating user is
blocking.
Returns: ArrayRef[BasicUser]
blocking_ids
Parameters: *none*
Required: *none*
Returns an array of numeric user ids the authenticating user is
blocking.
Returns: ArrayRef[Int]
create_block
create_block(id)
Parameters: id
Required: id
Blocks the user specified in the ID parameter as the authenticating
user. Returns the blocked user when successful. You can find out
more about blocking in the Twitter Support Knowledge Base.
Returns: BasicUser
create_favorite
create_favorite(id)
Parameters: id
Required: id
Favorites the status specified in the ID parameter as the
authenticating user. Returns the favorite status when successful.
Returns: Status
create_friend
create_friend(id)
Parameters: id, user_id, screen_name, follow
Required: id
Befriends the user specified in the ID parameter as the
authenticating user. Returns the befriended user in the requested
format when successful. Returns a string describing the failure
condition when unsuccessful.
Returns: BasicUser
destroy_block
destroy_block(id)
Parameters: id
Required: id
Un-blocks the user specified in the ID parameter as the
authenticating user. Returns the un-blocked user when successful.
Returns: BasicUser
destroy_direct_message
destroy_direct_message(id)
Parameters: id
Required: id
Destroys the direct message specified in the required ID parameter.
The authenticating user must be the recipient of the specified
direct message.
Returns: DirectMessage
destroy_favorite
destroy_favorite(id)
Parameters: id
Required: id
Un-favorites the status specified in the ID parameter as the
authenticating user. Returns the un-favorited status.
Returns: Status
destroy_friend
destroy_friend(id)
alias: unfollow
Parameters: id, user_id, screen_name
Required: id
Discontinues friendship with the user specified in the ID parameter
as the authenticating user. Returns the un-friended user when
successful. Returns a string describing the failure condition when
unsuccessful.
Returns: BasicUser
destroy_status
destroy_status(id)
Parameters: id
Required: id
Destroys the status specified by the required ID parameter. The
authenticating user must be the author of the specified status.
Returns: Status
direct_messages
Parameters: since_id, max_id, count, page
Required: *none*
Returns a list of the 20 most recent direct messages sent to the
authenticating user including detailed information about the sending
and recipient users.
Returns: ArrayRef[DirectMessage]
disable_notifications
disable_notifications(id)
Parameters: id
Required: id
Disables notifications for updates from the specified user to the
authenticating user. Returns the specified user when successful.
Returns: BasicUser
enable_notifications
enable_notifications(id)
Parameters: id
Required: id
Enables notifications for updates from the specified user to the
authenticating user. Returns the specified user when successful.
Returns: BasicUser
end_session
Parameters: *none*
Required: *none*
Ends the session of the authenticating user, returning a null
cookie. Use this method to sign users out of client-facing
applications like widgets.
Returns: Error
favorites
Parameters: id, page
Required: *none*
Returns the 20 most recent favorite statuses for the authenticating
user or user specified by the ID parameter.
Returns: ArrayRef[Status]
followers
Parameters: id, user_id, screen_name, page
Required: *none*
Returns the authenticating user's followers, each with current
status inline. They are ordered by the order in which they joined
Twitter (this is going to be changed).
Returns: ArrayRef[BasicUser]
followers_ids
followers_ids(id)
Parameters: id, user_id, screen_name, page
Required: id
Returns an array of numeric IDs for every user is followed by.
Returns: ArrayRef[Int]
friends
alias: following
Parameters: id, user_id, screen_name, page
Required: *none*
Returns the authenticating user's friends, each with current status
inline. They are ordered by the order in which they were added as
friends. It's also possible to request another user's recent friends
list via the id parameter.
Returns: ArrayRef[BasicUser]
friends_ids
friends_ids(id)
alias: following_ids
Parameters: id, user_id, screen_name, page
Required: id
Returns an array of numeric IDs for every user the specified user is
following.
Returns: ArrayRef[Int]
friends_timeline
alias: following_timeline
Parameters: since_id, max_id, count, page
Required: *none*
Returns the 20 most recent statuses posted by the authenticating
user and that user's friends. This is the equivalent of /home on the
Web.
Returns: ArrayRef[Status]
friendship_exists
friendship_exists(user_a, user_b)
alias: relationship_exists
alias: follows
Parameters: user_a, user_b
Required: user_a, user_b
Tests for the existence of friendship between two users. Will return
true if user_a follows user_b, otherwise will return false.
Returns: Bool
mentions
alias: replies
Parameters: since_id, max_id, count, page
Required: *none*
Returns the 20 most recent mentions (statuses containing @username)
for the authenticating user.
Returns: ArrayRef[Status]
new_direct_message
new_direct_message(user, text)
Parameters: user, text
Required: user, text
Sends a new direct message to the specified user from the
authenticating user. Requires both the user and text parameters.
Returns the sent message in the requested format when successful.
Returns: DirectMessage
public_timeline
Parameters: *none*
Required: *none*
Returns the 20 most recent statuses from non-protected users who
have set a custom user icon. Does not require authentication. Note
that the public timeline is cached for 60 seconds so requesting it
more often than that is a waste of resources.
Returns: ArrayRef[Status]
rate_limit_status
Parameters: *none*
Required: *none*
Returns the remaining number of API requests available to the
requesting user before the API limit is reached for the current
hour. Calls to rate_limit_status do not count against the rate
limit. If authentication credentials are provided, the rate limit
status for the authenticating user is returned. Otherwise, the rate
limit status for the requester's IP address is returned.
Returns: RateLimitStatus
sent_direct_messages
Parameters: since_id, max_id, page
Required: *none*
Returns a list of the 20 most recent direct messages sent by the
authenticating user including detailed information about the sending
and recipient users.
Returns: ArrayRef[DirectMessage]
show_status
show_status(id)
Parameters: id
Required: id
Returns a single status, specified by the id parameter. The status's
author will be returned inline.
Returns: Status
show_user
show_user(id)
Parameters: id
Required: id
Returns extended information of a given user, specified by ID or
screen name as per the required id parameter. This information
includes design settings, so third party developers can theme their
widgets according to a given user's preferences. You must be
properly authenticated to request the page of a protected user.
Returns: ExtendedUser
test
Parameters: *none*
Required: *none*
Returns the string "ok" status code.
Returns: Str
update
update(status)
Parameters: status, in_reply_to_status_id
Required: status
Updates the authenticating user's status. Requires the status
parameter specified. A status update with text identical to the
authenticating user's current status will be ignored.
Returns: Status
update_delivery_device
update_delivery_device(device)
Parameters: device
Required: device
Sets which device Twitter delivers updates to for the authenticating
user. Sending none as the device parameter will disable IM or SMS
updates.
Returns: BasicUser
update_profile
Parameters: name, email, url, location, description
Required: *none*
Sets values that users are able to set under the "Account" tab of
their settings page. Only the parameters specified will be updated;
to only update the "name" attribute, for example, only include that
parameter in your request.
Returns: ExtendedUser
update_profile_background_image
update_profile_background_image(image)
Parameters: image
Required: image
Updates the authenticating user's profile background image. Expects
raw multipart data, not a URL to an image.
Returns: ExtendedUser
update_profile_colors
Parameters: profile_background_color, profile_text_color,
profile_link_color, profile_sidebar_fill_color,
profile_sidebar_border_color
Required: *none*
Sets one or more hex values that control the color scheme of the
authenticating user's profile page on twitter.com. These values are
also returned in the /users/show API method.
Returns: ExtendedUser
update_profile_image
update_profile_image(image)
Parameters: image
Required: image
Updates the authenticating user's profile image. Expects raw
multipart data, not a URL to an image.
Returns: ExtendedUser
user_timeline
Parameters: id, user_id, screen_name, since_id, max_id, count, page
Required: *none*
Returns the 20 most recent statuses posted from the authenticating
user. It's also possible to request another user's timeline via the
id parameter. This is the equivalent of the Web /archive page for
your own user, or the profile page for a third party.
Returns: ArrayRef[Status]
verify_credentials
Parameters: *none*
Required: *none*
Returns an HTTP 200 OK response code and a representation of the
requesting user if authentication was successful; returns a 401
status code and an error message if not. Use this method to test if
supplied user credentials are valid.
Returns: ExtendedUser
Search API Methods
These methods are provided when trait "API::Search" is included in the
"traits" option to "new".
search
search(q)
Parameters: q, callback, lang, rpp, page, since_id, geocode,
show_user
Required: q
Returns tweets that match a specified query. You can use a variety
of search operators in your query.
Returns: ArrayRef[Status]
trends
Parameters: *none*
Required: *none*
Returns the top ten queries that are currently trending on Twitter.
The response includes the time of the request, the name of each
trending topic, and the url to the Twitter Search results page for
that topic.
Returns: ArrayRef[Query]
trends_current
trends_current(exclude)
Parameters: exclude
Required: *none*
Returns the current top ten trending topics on Twitter. The response
includes the time of the request, the name of each trending topic,
and query used on Twitter Search results page for that topic.
Returns: HashRef
trends_daily
Parameters: date, exclude
Required: *none*
Returns the top 20 trending topics for each hour in a given day.
Returns: HashRef
trends_weekly
Parameters: date, exclude
Required: *none*
Returns the top 30 trending topics for each day in a given week.
Returns: HashRef
TwitterVision API Methods
These methods are provided when trait "API::TwitterVision" is included
in the "traits" option to "new".
current_status
current_status(id)
Parameters: id, callback
Required: id
Get the current location and status of a user.
Returns: HashRef
update_twittervision
update_twittervision(location)
Parameters: location
Required: location
Updates the location for the authenticated user.
Returns: HashRef
LEGACY COMPATIBILITY
This version of "Net::Twitter" automatically includes the "Legacy" trait
if no "traits" option is provided to "new". Therefore, these 2 calls are
currently equivalent:
$nt = Net::Twitter->new(username => $user, password => $passwd);
$nt = Net::Twitter->new(
username => $user,
password => $passwd,
traits => ['Legacy'],
);
Thus, existing applications written for a prior version of
"Net::Twitter" should continue to run, without modification, with this
version.
In a future release, the default traits may change. Prior to that
change, however, a nearer future version will add a warning if no
"traits" option is provided to "new". To avoid this warning, add an
appropriate "traits" option to your existing application code.
ERROR HANDLING
There are currently two strategies for handling errors: throwing
exceptions and wrapping errors. Exception handling is the newer,
recommended strategy.
Wrapping Errors
When trait "WrapError" is specified (or "Legacy", which includes trait
"WrapError"), "Net::Twitter" returns undef on error. To retrieve
information about the error, use methods "http_code", "http_message",
and "get_error". These methods are described in the
Net::Twitter::Role::WrapError.
if ( my $followers = $nt->followers ) {
for my $follower ( @$followers ) {
#...
}
}
else {
warn "HTTP message: ", $nt->http_message, "\n";
}
Since an error is stored in the object instance, this error handling
strategy is problematic when using a user agent like
"LWP::UserAgent::POE" that provides concurrent requests. The error for
one request can be overwritten by a concurrent request before you have
an opportunity to access it.
Exception Handling
When "Net::Twitter" encounters a Twitter API error or a network error,
it throws a "Net::Twitter::Error" object. You can catch and process
these exceptions by using "eval" blocks and testing $@:
eval {
my $statuses = $nt->friends_timeline(); # this might die!
for my $status ( @$statuses ) {
#...
}
};
if ( $@ ) {
# friends_timeline encountered an error
if ( blessed $@ && $@->isa('Net::Twitter::Error' ) {
#... use the thrown error obj
warn $@->error;
}
else {
# something bad happened!
die $@;
}
}
"Net::Twitter::Error" stringifies to something reasonable, so if you
don't need detailed error information, you can simply treat $@ as a
string:
eval { $nt->update($status) };
if ( $@ ) {
warn "update failed because: $@\n";
}
SEE ALSO
Net::Twitter::Error
The "Net::Twitter" exception object.
<http://apiwiki.twitter.com/Twitter-API-Documentation>
This is the official Twitter API documentation. It describes the
methods and their parameters in more detail and may be more current
than the documentation provided with this module.
LWP::UserAgent::POE
This LWP::UserAgent compatible class can be used in POE based
application along with Net::Twitter to provide concurrent,
non-blocking requests.
SUPPORT
Please report bugs to "bug-net-twitter@rt.cpan.org", or through the web
interface at <https://rt.cpan.org/Dist/Display.html?Queue=Net-Twitter>.
Join the Net::Twitter IRC channel at <irc://irc.perl.org/net-twitter>.
Follow net_twitter: <http://twitter.com/net_twitter>.
Track Net::Twitter development at
<http://github.com/semifor/Net-Twitter>.
ACKNOWLEDGEMENTS
Many thanks to Chris Thompson <cpan@cthompson.com>, the original author
of "Net::Twitter" and all versions prior to 3.00.
Also, thanks to Chris Prather (perigrin) for answering many design and
implementation questions, especially with regards to Moose.
AUTHOR
Marc Mims <marc@questright.com>
LICENSE
Copyright (c) 2009 Marc Mims
The Twitter API itself, and the description text used in this module is:
Copyright (c) 2009 Twitter
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
DISCLAIMER OF WARRANTY
BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH
YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
NECESSARY SERVICING, REPAIR, OR CORRECTION.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENSE, BE LIABLE
TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.