NAME
Search::Elasticsearch::Cxn::LWP - A Cxn implementation which uses LWP
VERSION
version 7.712
DESCRIPTION
Provides an HTTP Cxn class and based on LWP. The LWP backend uses pure Perl and persistent connections.
This class does Search::Elasticsearch::Role::Cxn, whose documentation provides more information, and Search::Elasticsearch::Role::Is_Sync.
CONFIGURATION
Inherited configuration
From Search::Elasticsearch::Role::Cxn
SSL/TLS
Search::Elasticsearch::Cxn::LWP uses IO::Socket::SSL to support HTTPS. By default, no validation of the remote host is performed.
This behaviour can be changed by passing the ssl_options parameter with any options accepted by IO::Socket::SSL. For instance, to check that the remote host has a trusted certificate, and to avoid man-in-the-middle attacks, you could do the following:
use Search::Elasticsearch;
my $es = Search::Elasticsearch->new(
cxn => 'LWP',
nodes => [
"https://node1.mydomain.com:9200",
"https://node2.mydomain.com:9200",
],
ssl_options => {
verify_hostname => 1,
SSL_ca_file => '/path/to/cacert.pem'
}
);If the remote server cannot be verified, an Search::Elasticsearch::Error will be thrown - LWP does not allow us to detect that the connection error was due to invalid SSL.
If you want your client to present its own certificate to the remote server, then use:
use Search::Elasticsearch;
my $es = Search::Elasticsearch->new(
cxn => 'LWP',
nodes => [
"https://node1.mydomain.com:9200",
"https://node2.mydomain.com:9200",
],
ssl_options => {
verify_hostname => 1,
SSL_ca_file => '/path/to/cacert.pem',
SSL_use_cert => 1,
SSL_cert_file => '/path/to/client.pem',
SSL_key_file => '/path/to/client.pem',
}
);METHODS
perform_request()
($status,$body) = $self->perform_request({
# required
method => 'GET|HEAD|POST|PUT|DELETE',
path => '/path/of/request',
qs => \%query_string_params,
# optional
data => $body_as_string,
mime_type => 'application/json',
timeout => $timeout
});Sends the request to the associated Elasticsearch node and returns a $status code and the decoded response $body, or throws an error if the request failed.
Inherited methods
From Search::Elasticsearch::Role::Cxn
SEE ALSO
AUTHOR
Enrico Zimuel <enrico.zimuel@elastic.co>
COPYRIGHT AND LICENSE
This software is Copyright (c) 2021 by Elasticsearch BV.
This is free software, licensed under:
The Apache License, Version 2.0, January 2004