title: Azure Functions - What is the purpose of having host.json and local.settings.json
body: <p>I can see two json files(host.json and local.settings.json) has been added in Azure Function directory.</p>
  <h3 id="host.json-16wr">host.json</h3>
  <pre class="lang-json prettyprint-override"><code>{
      &quot;version&quot;: &quot;2.0&quot;,
      &quot;logging&quot;: {
          &quot;applicationInsights&quot;: {
              &quot;samplingExcludedTypes&quot;: &quot;Request&quot;,
              &quot;samplingSettings&quot;: {
                  &quot;isEnabled&quot;: true
              }
          }
      }
  }
  </code></pre>
  <h3 id="local.settings.json-2lq1">local.settings.json</h3>
  <pre class="lang-json prettyprint-override"><code>{
    &quot;IsEncrypted&quot;: false,
    &quot;Values&quot;: {
      &quot;AzureWebJobsStorage&quot;: &quot;UseDevelopmentStorage=true&quot;,
      &quot;FUNCTIONS_WORKER_RUNTIME&quot;: &quot;dotnet&quot;
    }
  }
  </code></pre>
  <p>What is the purpose of having these two json files?</p>