NAME

Twitter::API::Role::RequestArgs - API request method helpers

VERSION

version 0.0113

SYNOPSIS

    package MyApiMethods;
    use Moo::Role;

    sub timeline {
        shift->request_with_id(get => 'statuses/user_timeline, @_);
    }

Then, in your application code:

    use Twitter::API;

    my $client = Twitter::API->new_with_traits(
        traits => '+MyApiMethods',
        %othe_new_options,
    );

    my $statuses = $client->timeline('semifor');

    # equvalent to:
    my $statuses = $client->get('statuses/user_timeline', {
        screen_name => 'semifor',
    });

DESCRIPTION

Helper methods for implementers of custom traits for creating concise Twitter API methods. Used in Twitter::API::Trait::ApiMethods.

METHODS

request_with_id

Transforms an argument list with a required screen_name or user_id, optionally passed as a leading, positional argument, a hashref argument.

If a hashref follows the optional plain scalar, the user_id or screen_name is added to it. Otherwise a new hashref is created and inserted into @_.

If the optional plain scalar argument is missing, and there is hashref of arguments, or if the hashref does not contain the key screen_name or user_id, request_with_id croaks.

Examples:

    $self->request_with_id(get => 'some/endpoint', 'foo');
    # is transformed to:
    $self->request(get => 'some/endpoint', { screen_name => 'foo' });

    $self->request_with_id(get => 'some/endpoint', 8575429);
    # is transfromed to:
    $self->request(get => 'some/endpoint', { user_id => 8675429 });

    $self->request_with_id(get => 'some/endpoint', {
        screen_name => 'semifor',
    });
    # is transformed to:
    $self->request(get => 'some/endpoint', { screen_name => 'semifor' });

    $self->request_with_id(get => 'some/endpoint', {
        foo => 'bar',
    }); ### croaks ###

request_with_pos_args

Transforms a list of required arguments, optionally provided positionally in a determined order, into a hashref of named arguments. If a hashref follows the positional arguments, the named arguments are added to it. Otherwise, a new hashref in inserted into @_.

Zero or more of the required arguments may be provided positionally, as long as the appear in the specified order. I any of the required arguments are not provided positionally, they must be provided in the hashref or request_with_pos_args croaks.

The positional name :ID is treated specially. It is transformed to user_id if the value it represents contains only digits. Otherwise, it is transformed to screen_name.

Examples:

    $self->request_with_pos_args(
        [ 'id', 'name' ], get => 'some/endpoint',
        '007', 'Bond'
    );
    # is transformed to:
    $self->request(get => 'some/endpoint', {
        id   => '007',
        name => 'Bond',
    });

    $self->request_with_pos_args(
        [ 'id', 'name' ], get => 'some/endpoint',
        '007', { name => 'Bond' }
    );
    # is also transformed to:
    $self->request(get => 'some/endpoint', {
        id   => '007',
        name => 'Bond',
    });

    $self->request_with_pos_args(
        [ ':ID', 'status' ], get => 'some/endpoint',
        'alice', 'down the rabbit hole'
    );
    # is transformed to:
    $self->request(get => 'some/endpoint', {
        sreen_name => 'alice',
        status     => 'down the rabbit hole',
    });

normalize_pos_args

Helper method for request_with_pos_args. Takes the same arguments described in request_with_pos_args above, and returns a list of arguments ready for a call to request.

Individual methods in Twitter::API::Trait::ApiMethods use normalize_pos_args if they need to do further processing on the args hashref before calling request.

flatten_list_args([ $key | \@keys ], \%args)

Some Twitter API arguments take a list of values as a string of comma separated items. To allow callers to pass an array reference of items instead, this method is used to flatten array references to strings. The key or keys identify which values to flatten in the \%args hash reference, if they exist.

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.

cpanm Twitter::API

perl -MCPAN -e shell
install Twitter::API