# Local Integration

## For Serial / Socket Connection, you will need to follow 

{% content-ref url="local-integration/payment-app-integration-protocol" %}
[payment-app-integration-protocol](https://smartpossdk.gitbook.io/paywizard-open-api/semi-integration/local-integration/payment-app-integration-protocol)
{% endcontent-ref %}

## Best Practice

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th data-hidden data-card-target data-type="content-ref"></th><th data-hidden data-card-cover data-type="image">Cover image</th></tr></thead><tbody><tr><td><strong><code>Serial Connection Best Practice</code></strong></td><td><a href="local-integration/serial-connection-best-practice">serial-connection-best-practice</a></td><td><a href="https://2631785516-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FY7FuzH91SaNfvhwFA9Ic%2Fuploads%2FNgSvp8gz67wjJ8xaPT6p%2Fserial.png?alt=media&#x26;token=6d341843-4cc7-4e63-b393-7dceffdcb73a">serial.png</a></td></tr><tr><td><strong><code>Socket Connection Best Practice</code></strong></td><td><a href="local-integration/socket-connection-best-practice">socket-connection-best-practice</a></td><td><a href="https://2631785516-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FY7FuzH91SaNfvhwFA9Ic%2Fuploads%2FrGSpmlXGwqkcD0QRILX7%2Fsocket.png?alt=media&#x26;token=4076c343-8714-4232-abe5-c8daf747e4b0">socket.png</a></td></tr><tr><td><strong><code>MDB Connection Best Practice</code></strong></td><td><a href="local-integration/mdb-connection-best-practice">mdb-connection-best-practice</a></td><td><a href="https://2631785516-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FY7FuzH91SaNfvhwFA9Ic%2Fuploads%2Fu3JdRhKExYcZqXmrOOrz%2Fmdb.png?alt=media&#x26;token=8955dfb3-ba61-40bb-bfa7-591bef6d0a9d">mdb.png</a></td></tr></tbody></table>