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Search::Elasticsearch::Transport(3) User Contributed Perl Documentation Search::Elasticsearch::Transport(3)
 

Search::Elasticsearch::Transport - Provides interface between the client class and the Elasticsearch cluster

version 5.02

The Transport class manages the request cycle. It receives parsed requests from the (user-facing) client class, and tries to execute the request on a node in the cluster, retrying a request if necessary.
This class does Search::Elasticsearch::Role::Transport and Search::Elasticsearch::Role::Is_Sync.

    $e = Search::Elasticsearch->new(
        send_get_body_as => 'POST'
    );
Certain endpoints like " search()" in Search::Elasticsearch::Client::5_0::Direct default to using a "GET" method, even when they include a request body. Some proxy servers do not support "GET" requests with a body. To work around this, the "send_get_body_as" parameter accepts the following:
"GET"
The default. Request bodies are sent as "GET" requests.
"POST"
The method is changed to "POST" when a body is present.
"source"
The body is encoded as JSON and added to the query string as the "source" parameter. This has the advantage of still being a "GET" request (for those filtering on request method) but has the disadvantage of being restricted in size. The limit depends on the proxies between the client and Elasticsearch, but usually is around 4kB.

Raw requests can be executed using the transport class as follows:
    $result = $e->transport->perform_request(
        method => 'POST',
        path   => '/_search',
        qs     => { from => 0, size => 10 },
        body   => {
            query => {
                match => {
                    title => "Elasticsearch clients"
                }
            }
        }
    );
Other than the "method", "path", "qs" and "body" parameters, which should be self-explanatory, it also accepts:
"ignore"
The HTTP error codes which should be ignored instead of throwing an error, eg "404 NOT FOUND":
    $result = $e->transport->perform_request(
        method => 'GET',
        path   => '/index/type/id'
        ignore => [404],
    );
    
"serialize"
Whether the "body" should be serialized in the standard way (as plain JSON) or using the special bulk format: "std" or "bulk".

Clinton Gormley <drtech@cpan.org>

This software is Copyright (c) 2017 by Elasticsearch BV.
This is free software, licensed under:
  The Apache License, Version 2.0, January 2004
2017-04-02 perl v5.28.1

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