# Debugging The ability to debug is important for app developers. App SDK provides opt-in verbose logs, that can be enabled for specific modules. Debug logs are implemented with [debug](https://www.npmjs.com/package/debug) package and work both in Node and Browser. ## Enabling verbose logs Debug logs are aggregated within [namespaces](#namespaces). They can be enabled, disabled, or configured. By default, all verbose logs are disabled. To enable logs, use the following: ### Enabling in Node context Add `DEBUG=app-sdk:{namespaces}` env variable. #### Example ```shell DEBUG=* pnpm run dev ``` For more details check [debug package](https://github.com/debug-js/debug#usage). ### Enabling in Browser context Set `localStorage.debug = 'app-sdk:{namepsaces}'` in your frontend code. For more details see [debug package](https://github.com/debug-js/debug#browser-support). #### Debug in iframe Note, that Saleor Apps are usually hosted on a different domain than Saleor Dashboard. That means `localStorage` must be called in the context of the App's URL, not Saleor Dashboard. #### Example ```javascript // In devtools console localStorage.debug = "*"; ``` ## Namespaces Use the namespace name to enable debug logs for each module. | Namespace name | Description | | --------------------- | -------------------------------------------------- | | \app-sdk:\* | Enable all | | app-sdk:AppBridge | Enable [AppBridge](./app-bridge.md) (browser only) | | app-sdk:Middleware:\* | Enable all middlewares (node only) | | app-sdk:APL:\* | Enable all APLs (node only) |