NAME

Twitter::API - A Twitter REST API library for Perl

VERSION

version 0.0100

SYNOPSIS

    ### Common usage ###

    use Twitter::API;
    my $client = Twitter::API->new_with_traits(
        traits              => 'Enchilada',
        consumer_key        => $YOUR_CONSUMER_KEY,
        consumer_secret     => $YOUR_CONSUMER_SECRET,
        access_token        => $YOUR_ACCESS_TOKEN
        access_token_secret => $YOUR_ACCESS_TOKEN_SECRET,
    );

    my $me   = $client->verify_credentials;
    my $user = $client->show_user('twitter');

    # In list context, both the Twitter API result and a Twitter::API::Context
    # object are returned.
    my ($r, $context) = $client->home_timeline({ count => 200, trim_user => 1 });
    my $remaning = $context->rate_limit_remaining;
    my $until    = $context->rate_limit_reset;


    ### No frills ###

    my $client = Twitter::API->new(
        consumer_key    => $YOUR_CONSUMER_KEY,
        consumer_secret => $YOUR_CONSUMER_SECRET,
    );

    my $r = $client->get('account/verify_credentials', {
        -token        => $an_access_token,
        -token_secret => $an_access_token_secret,
    });

    ### Error handling ###

    use Twitter::API::Util 'is_twitter_api_error';
    use Try::Tiny;

    try {
        my $r = $client->verify_credentials;
    }
    catch {
        die $_ unless is_twitter_api_error($_);

        # The error object includes plenty of information
        say $_->http_request->as_string;
        say $_->http_response->as_string;
        say 'No use retrying right away' if $_->is_permanent_error;
        if ( $_->is_token_error ) {
            say "There's something wrong with this token."
        }
        if ( $_->twitter_error_code == 326 ) {
            say "Oops! Twitter thinks you're spam bot!";
        }
    };

DESCRIPTION

Twitter::API provides an interface to the Twitter REST API for perl.

Features:

  • full support for all Twitter REST API endpoints

  • not dependent on a new distribution for new endpoint support

  • optionally specify access tokens per call; no need to construct a new client to use different tokens

  • error handling via an exception object that captures the full reqest/response context

  • full support for OAuth handshake and xauth authentication

Additionl features are availble via optional traits:

  • convenient methods for API endpoints with simplified argument handling via ApiMethods

  • normalized booleans (Twitter likes 'true' and 'false', except when it doesn't) via NormalizeBooleans

  • automatic decoding of HTML entities via DecodeHtmlEntities

  • automatic retry on transient errors via RetryOnError

  • "the whole enchilada" combines all the above traits via Enchilada

  • app-only (OAuth2) support via AppAuth

Some featuers are provided by separate distributions to avoid additional dependencies most users won't want or need:

ATTRIBUTES

consumer_key, consumer_secret

Required. Every application has it's own application credentials.

access_token, access_token_secret

Optional. If provided, every API call will be authenticated with these user credentials. See AppAuth for app-only (OAuth2) support, which does not require user credentials. You can also pass options -token and -token_secret to specify user credentials on each API call.

api_url

Optional. Defaults to https://api.twitter.com.

upload_url

Optional. Defaults to https://upload.twitter.com.

api_version

Optional. Defaults to 1.1.

agent

Optional. Used for both the User-Agent and X-Twitter-Client identifiers. Defaults to Twitter-API-$VERSION (Perl).

timeout

Optional. Request timeout in seconds. Defaults to 10.

METHODS

get($url, [ \%args ])

Issues an HTTP GET request to Twitter. If $url is just a path part, e.g., account/verify_credentials, it will be expanded to a full URL by prepending the api_url, api_version and appending .json. A full URL can also be specified, e.g. https://api.twitter.com/1.1/account/verify_credentials.json.

This should accommodate any new API endpoints Twitter adds without requiring an update to this module.

put($url, [ \%args ])

See get above, for a discussion $url. For file upload, pass an array reference as described in https://metacpan.org/pod/distribution/HTTP-Message/lib/HTTP/Request/Common.pm#POST-url-Header-Value-...-Content-content.

get_request_token([ \%args ])

This is the first step in the OAuth handshake. The only argument expected is callback, which defaults to oob for PIN based verification. Web applications will pass a callback URL.

Returns a hashref that includes oauth_token and oauth_token_secret.

See https://dev.twitter.com/oauth/reference/post/oauth/request_token.

get_authentication_url(\%args)

This is the second step in the OAuth handshake. The only required argument is oauth_token. Use the value returned by get_request_token. Optional arguments: force_login and screen_name to prefill Twitter's authentication form.

See https://dev.twitter.com/oauth/reference/get/oauth/authenticate.

get_authorization_url(\%args)

Identical to get_authentication_url, but uses authorization flow, rather than authentication flow.

See https://dev.twitter.com/oauth/reference/get/oauth/authorize.

get_access_token(\%ags)

This is the third and final step in the OAuth handshake. Pass the request token, request token_secret obtained in the get_request_token call, and either the PIN number if you used oob for the callback value in get_request_token or the verifier parameter returned in the web callback, as verfier.

See https://dev.twitter.com/oauth/reference/post/oauth/access_token.

xauth(\%args)

Requires per application approval from Twitter. Pass username and password.

SEE ALSO

AUTHOR

Marc Mims <marc@questright.com>

COPYRIGHT AND LICENSE

This software is copyright (c) 2015-2016 by Marc Mims.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.