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<div class="section" id="logging">
<h1>Logging<a class="headerlink" href="#logging" title="Permalink to this headline">¶</a></h1>
<div class="section" id="logger-injection">
<h2>Logger injection<a class="headerlink" href="#logger-injection" title="Permalink to this headline">¶</a></h2>
<p>As the <tt class="docutils literal"><span class="pre">Rackspace</span></tt> client extends the <tt class="docutils literal"><span class="pre">OpenStack</span></tt> client, they both support
passing <tt class="docutils literal"><span class="pre">$options</span></tt> as an array via the constructor’s third parameter. The
options are passed as a config to the <cite>Guzzle</cite> client, but also allow to inject
your own logger.</p>
<p>Your logger should implement the <tt class="docutils literal"><span class="pre">Psr\Log\LoggerInterface</span></tt> <a class="reference external" href="https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md">as defined in
PSR-3</a>.
One example of a compatible logger is <a class="reference external" href="https://github.com/Seldaek/monolog">Monolog</a>.
When the client does create a service, it will inject the logger if one is
available.</p>
<p>To inject a <tt class="docutils literal"><span class="pre">LoggerInterface</span></tt> compatible logger into a new client:</p>
<div class="highlight-php"><div class="highlight"><pre><span class="k">use</span> <span class="nx">Monolog\Logger</span><span class="p">;</span>
<span class="k">use</span> <span class="nx">OpenCloud\OpenStack</span><span class="p">;</span>
<span class="c1">// create a log channel</span>
<span class="nv">$logger</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">Logger</span><span class="p">(</span><span class="s1">'name'</span><span class="p">);</span>
<span class="nv">$client</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">OpenStack</span><span class="p">(</span><span class="s1">'http://identity.my-openstack.com/v2.0'</span><span class="p">,</span> <span class="k">array</span><span class="p">(</span>
<span class="s1">'username'</span> <span class="o">=></span> <span class="s1">'foo'</span><span class="p">,</span>
<span class="s1">'password'</span> <span class="o">=></span> <span class="s1">'bar'</span>
<span class="p">),</span> <span class="k">array</span><span class="p">(</span>
<span class="s1">'logger'</span> <span class="o">=></span> <span class="nv">$logger</span><span class="p">,</span>
<span class="p">));</span>
</pre></div>
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