> ## Documentation Index
> Fetch the complete documentation index at: https://help.airbridge.io/llms.txt
> Use this file to discover all available pages before exploring further.

# SDK Migration - Expo SDK

You'll find what you need to know about the process of updating the Airbridge Expo SDK. We recommend that you check everything from the current version onwards to the version after the update.

## Update from v2.x to v4.0

Confirm once you update the Airbridge Expo SDK to v4.0.

<Accordion title="List of all changes">
  #### Option

  | airbridge.json (v2)             | airbridge.json (v4)                               | Change                        |
  | ------------------------------- | ------------------------------------------------- | ----------------------------- |
  | -                               | sdkEnabled                                        | New features have been added. |
  | logLevel                        | logLevel                                          | -                             |
  | autoStartTrackingEnabled        | autoStartTrackingEnabled                          | -                             |
  | trackingAuthorizeTimeoutSeconds | autoDetermineTrackingAuthorizationTimeoutInSecond | The name has been changed.    |
  | facebookDeferredAppLinkEnabled  | trackMetaDeferredAppLinkEnabled                   | The name has been changed.    |
  | sessionTimeoutSeconds           | sessionTimeoutInSecond                            | The name has been changed.    |
  | metaInstallReferrer             | metaInstallReferrerAppID                          | The name has been changed.    |
  | trackAirbridgeLinkOnly          | trackAirbridgeDeeplinkOnlyEnabled                 | The name has been changed.    |
  | -                               | trackInSessionLifecycleEventEnabled               | New features have been added. |
  | userInfoHashEnabled             | hashUserInformationEnabled                        | The name has been changed.    |
  | sdkSignatureSecretID            | sdkSignatureID                                    | The name has been changed.    |
  | sdkSignatureSecret              | sdkSignatureSecret                                | The name has been changed.    |
  | -                               | clearEventBufferOnInitializeEnabled               | New features have been added. |
  | -                               | eventBufferCountLimit                             | New features have been added. |
  | -                               | eventBufferSizeLimitInGibibyte                    | New features have been added. |
  | -                               | eventTransmitIntervalInSecond                     | New features have been added. |

  #### Function (React Native)

  | Airbridge (v2)               | Airbridge (v4)                  | Change                                                                |
  | ---------------------------- | ------------------------------- | --------------------------------------------------------------------- |
  | state.setAttributionListener | setOnAttributionReceived        | The name has been changed.                                            |
  | deeplink.setDeeplinkListener | setOnDeeplinkReceived           | The name has been changed.                                            |
  | event.trackEvent             | trackEvent                      | The name has been changed. Method of inserting attributes is changed. |
  | state.deviceUUID             | fetchDeviceUUID                 | The name has been changed. DeviceUUID is now returned with callback.  |
  | -                            | fetchAirbridgeGeneratedUUID     | New features have been added.                                         |
  | -                            | isUninstallTrackingNotification | New features have been added.                                         |
  | placement.click              | click                           | The name has been changed. Callback feature is added.                 |
  | placement.impression         | impression                      | The name has been changed. Callback feature is added.                 |
  | state.setUser                | -                               | Replaced with User related functions.                                 |
  | state.updateUser             | -                               | Replaced with User related functions.                                 |
  | -                            | setUserID                       | New features have been added.                                         |
  | -                            | clearUserID                     | New features have been added.                                         |
  | -                            | setUserEmail                    | New features have been added.                                         |
  | -                            | clearUserEmail                  | New features have been added.                                         |
  | -                            | setUserPhone                    | New features have been added.                                         |
  | -                            | clearUserPhone                  | New features have been added.                                         |
  | -                            | setUserAttribute                | New features have been added.                                         |
  | -                            | removeUserAttribute             | New features have been added.                                         |
  | -                            | clearUserAttributes             | New features have been added.                                         |
  | -                            | setUserAlias                    | New features have been added.                                         |
  | -                            | removeUserAlias                 | New features have been added.                                         |
  | -                            | clearUserAlias                  | New features have been added.                                         |
  | -                            | clearUser                       | New features have been added.                                         |
  | setDeviceAlias               | setDeviceAlias                  | -                                                                     |
  | removeDeviceAlias            | removeDeviceAlias               | -                                                                     |
  | clearDeviceAlias             | clearDeviceAlias                | -                                                                     |
  | registerPushToken            | registerPushToken               | -                                                                     |
  | -                            | enableSDK                       | New features have been added.                                         |
  | -                            | disableSDK                      | New features have been added.                                         |
  | -                            | isSDKEnabled                    | New features have been added.                                         |
  | state.startTracking          | startTracking                   | The name has been changed.                                            |
  | -                            | stopTracking                    | New features have been added.                                         |
  | -                            | isTrackingEnabled               | New features have been added.                                         |
  | createWebInterface           | -                               | Replaced with WebInterface related functions.                         |
  | -                            | createWebInterfaceScript        | New features have been added.                                         |
  | -                            | handleWebInterfaceCommand       | New features have been added.                                         |

  #### Constant (React Native)

  | AirbridgeCategory (v2)  | AirbridgeCategory (v4)  | Change |
  | ----------------------- | ----------------------- | ------ |
  | SIGN\_UP                | SIGN\_UP                | -      |
  | SIGN\_IN                | SIGN\_IN                | -      |
  | SIGN\_OUT               | SIGN\_OUT               | -      |
  | HOME\_VIEWED            | HOME\_VIEWED            | -      |
  | PRODUCT\_LIST\_VIEWED   | PRODUCT\_LIST\_VIEWED   | -      |
  | SEARCH\_RESULTS\_VIEWED | SEARCH\_RESULTS\_VIEWED | -      |
  | PRODUCT\_VIEWED         | PRODUCT\_VIEWED         | -      |
  | ADD\_PAYMENT\_INFO      | ADD\_PAYMENT\_INFO      | -      |
  | ADD\_TO\_WISHLIST       | ADD\_TO\_WISHLIST       | -      |
  | ADD\_TO\_CART           | ADDED\_TO\_CART         | -      |
  | INITIATE\_CHECKOUT      | INITIATE\_CHECKOUT      | -      |
  | ORDER\_COMPLETED        | ORDER\_COMPLETED        | -      |
  | ORDER\_CANCELED         | ORDER\_CANCELED         | -      |
  | START\_TRIAL            | START\_TRIAL            | -      |
  | SUBSCRIBE               | SUBSCRIBE               | -      |
  | UNSUBSCRIBE             | UNSUBSCRIBE             | -      |
  | AD\_IMPRESSION          | AD\_IMPRESSION          | -      |
  | AD\_CLICK               | AD\_CLICK               | -      |
  | COMPLETE\_TUTORIAL      | COMPLETE\_TUTORIAL      | -      |
  | ACHIEVE\_LEVEL          | ACHIEVE\_LEVEL          | -      |
  | UNLOCK\_ACHIEVEMENT     | UNLOCK\_ACHIEVEMENT     | -      |
  | RATE                    | RATE                    | -      |
  | SHARE                   | SHARE                   | -      |
  | SCHEDULE                | SCHEDULE                | -      |
  | SPEND\_CREDITS          | SPEND\_CREDITS          | -      |

  | AirbridgeAttributes (v2)              | AirbridgeAttribute (v4)               | Change                                               |
  | ------------------------------------- | ------------------------------------- | ---------------------------------------------------- |
  | -                                     | ACTION                                | New features have been added.                        |
  | -                                     | LABEL                                 | New features have been added.                        |
  | -                                     | VALUE                                 | New features have been added.                        |
  | TOTAL\_VALUE                          | -                                     | The feature has been removed. Please enter in VALUE. |
  | CURRENCY                              | CURRENCY                              | -                                                    |
  | ORIGINAL\_CURRENCY                    | ORIGINAL\_CURRENCY                    | -                                                    |
  | PRODUCTS                              | PRODUCTS                              | -                                                    |
  | PERIOD                                | PERIOD                                | -                                                    |
  | IS\_RENEWAL                           | IS\_RENEWAL                           | -                                                    |
  | RENEWAL\_COUNT                        | RENEWAL\_COUNT                        | -                                                    |
  | PRODUCT\_LIST\_ID                     | PRODUCT\_LIST\_ID                     | -                                                    |
  | CART\_ID                              | CART\_ID                              | -                                                    |
  | TRANSACTION\_ID                       | TRANSACTION\_ID                       | -                                                    |
  | TRANSACTION\_TYPE                     | TRANSACTION\_TYPE                     | -                                                    |
  | TRANSACTION\_PAIRED\_EVENT\_CATEGORY  | TRANSACTION\_PAIRED\_EVENT\_CATEGORY  | -                                                    |
  | TRANSACTION\_PAIRED\_EVENT\_TIMESTAMP | TRANSACTION\_PAIRED\_EVENT\_TIMESTAMP | -                                                    |
  | TOTAL\_QUANTITY                       | TOTAL\_QUANTITY                       | -                                                    |
  | QUERY                                 | QUERY                                 | -                                                    |
  | IN\_APP\_PURCHASED                    | IN\_APP\_PURCHASED                    | -                                                    |
  | CONTRIBUTION\_MARGIN                  | CONTRIBUTION\_MARGIN                  | -                                                    |
  | ORIGINAL\_CONTRIBUTION\_MARGIN        | ORIGINAL\_CONTRIBUTION\_MARGIN        | -                                                    |
  | LIST\_ID                              | LIST\_ID                              | -                                                    |
  | RATE\_ID                              | RATE\_ID                              | -                                                    |
  | RATE                                  | RATE                                  | -                                                    |
  | MAX\_RATE                             | MAX\_RATE                             | -                                                    |
  | ACHIEVEMENT\_ID                       | ACHIEVEMENT\_ID                       | -                                                    |
  | SHARED\_CHANNEL                       | SHARED\_CHANNEL                       | -                                                    |
  | DATE\_TIME                            | DATE\_TIME                            | -                                                    |
  | DESCRIPTION                           | DESCRIPTION                           | -                                                    |
  | IS\_REVENUE                           | IS\_REVENUE                           | -                                                    |
  | PLACE                                 | PLACE                                 | -                                                    |
  | SCHEDULE\_ID                          | SCHEDULE\_ID                          | -                                                    |
  | TYPE                                  | TYPE                                  | -                                                    |
  | LEVEL                                 | LEVEL                                 | -                                                    |
  | SCORE                                 | SCORE                                 | -                                                    |
  | AD\_PARTNERS                          | AD\_PARTNERS                          | -                                                    |
  | IS\_FIRST\_PER\_USER                  | IS\_FIRST\_PER\_USER                  | -                                                    |

  | AirbridgeProduct (v2)   | AirbridgeAttribute (v4) | Change |
  | ----------------------- | ----------------------- | ------ |
  | PRODUCT\_ID             | PRODUCT\_ID             | -      |
  | PRODUCT\_NAME           | PRODUCT\_NAME           | -      |
  | PRODUCT\_PRICE          | PRODUCT\_PRICE          | -      |
  | PRODUCT\_QUANTITY       | PRODUCT\_QUANTITY       | -      |
  | PRODUCT\_CURRENCY       | PRODUCT\_CURRENCY       | -      |
  | PRODUCT\_POSITION       | PRODUCT\_POSITION       | -      |
  | PRODUCT\_CATEGORY\_ID   | PRODUCT\_CATEGORY\_ID   | -      |
  | PRODUCT\_CATEGORY\_NAME | PRODUCT\_CATEGORY\_NAME | -      |
  | PRODUCT\_BRAND\_ID      | PRODUCT\_BRAND\_ID      | -      |
  | PRODUCT\_BRAND\_NAME    | PRODUCT\_BRAND\_NAME    | -      |

  #### Function (iOS)

  | AirbridgeRN (v2)                 | AirbridgeReactNative (v4) | Change                     |
  | -------------------------------- | ------------------------- | -------------------------- |
  | getInstance                      | initializeSDK             | The name has been changed. |
  | deeplink.handleURLSchemeDeeplink | trackDeeplink             | The name has been changed. |
  | deeplink.handleUserActivity      | trackDeeplink             | The name has been changed. |

  #### Function (Android)

  | AirbridgeRN (v2)        | AirbridgeReactNative (v4) | Change                     |
  | ----------------------- | ------------------------- | -------------------------- |
  | init                    | initializeSDK             | The name has been changed. |
  | processDeeplinkData     | trackDeeplink             | The name has been changed. |
  | setLifecycleIntegration |                           | -                          |
</Accordion>

### SDK installation and initialization

The key values of airbridge.json have been changed. Change the key values as follows.

| airbridge.json (v2)             | airbridge.json (v4)                               |
| ------------------------------- | ------------------------------------------------- |
| trackingAuthorizeTimeoutSeconds | autoDetermineTrackingAuthorizationTimeoutInSecond |
| facebookDeferredAppLinkEnabled  | trackMetaDeferredAppLinkEnabled                   |
| sessionTimeoutSeconds           | sessionTimeoutInSecond                            |
| metaInstallReferrer             | metaInstallReferrerAppID                          |
| trackAirbridgeLinkOnly          | trackAirbridgeDeeplinkOnlyEnabled                 |
| userInfoHashEnabled             | hashUserInformationEnabled                        |
| sdkSignatureSecretID            | sdkSignatureID                                    |
| sdkSignatureSecret              | sdkSignatureSecret                                |

### Deep Link

The `Airbridge.setDeeplinkListener` function has been replaced with the `Airbridge.setOnDeeplinkReceived` function.

```diff lines theme={"theme":{"light":"github-dark-dimmed","dark":"github-dark-dimmed"}}
- import Airbridge from 'airbridge-react-native-sdk'
- ...
- Airbridge.setDeeplinkListener((url) => {
-     // show proper content
- })
+ import { Airbridge } from 'airbridge-react-native-sdk'
+ ...
+ Airbridge.setOnDeeplinkReceived((url) => {
+     // show proper content
+ })
```

### Set up custom domain

The method of specifying custom domain URLs in used in version 2.x, has been changed. You can now add custom domain links to the `trackingLinkCustomDomains`in the airbridge.json during Airbridge SDK initialization.

```json lines theme={"theme":{"light":"github-dark-dimmed","dark":"github-dark-dimmed"}}
{
    "trackingLinkCustomDomains": ["YOUR_APP_CUSTOM_DOMAIN"]
}
```

### In-app events and user data

The function Airbridge.event.trackEvent has been replaced with Airbridge.trackEvent.

Please change the function Airbridge.event.trackEvent to Airbridge.trackEvent following the example code below.

```diff lines theme={"theme":{"light":"github-dark-dimmed","dark":"github-dark-dimmed"}}
- import Airbridge, { AirbridgeAttributes } from 'airbridge-react-native-sdk'
- ...
- Airbridge.event.trackEvent('event', {
-     action: '...',
-     label: '...',
-     value: 100,
-     semanticAttributes: {
-         [AirbridgeAttributes.QUERY]: '...',
-     },
-     customAttributes: {
-         'key1': '...',
-         'key2': '...',
-         'key3': '...',
-     },
- })
+ import { Airbridge, AirbridgeAttribute } from 'airbridge-react-native-sdk'
+ ...
+ Airbridge.trackEvent('event', {
+     [AirbridgeAttribute.ACTION]: '...',
+     [AirbridgeAttribute.LABEL]: '...',
+     [AirbridgeAttribute.VALUE]: 100,
+     [AirbridgeAttribute.QUERY]: '...',
+ }, {
+     'key1': '...',
+     'key2': '...',
+     'key3': '...',
+ })
```

<Danger>
  **Attention**

  The `action` , `label` , `value` , `semanticAttributes` values, which are in the second parameter of the `Airbridge.event.trackEvent` function must be included in the second parameter of the `Airbridge.trackEvent` function.

  The `customAttributes` value, which is the second parameter of the `Airbridge.event.trackEvent` function must be included in the third parameter of the `Airbridge.trackEvent` function.
</Danger>

The functions `Airbridge.state.setUser` and `Airbridge.state.updateUser` have been replaced with the [Airbridge.setUser](/en/developers/react-native-sdk-v4#set-additional-user-information) related functions. The `setUser` , `updateUser` functions, which set user information all at once, are no longer supported.

```diff lines theme={"theme":{"light":"github-dark-dimmed","dark":"github-dark-dimmed"}}
- import Airbridge from 'airbridge-react-native-sdk'
- ...
- Airbridge.state.setUser({ ID: '...', email: '...' })
- Airbridge.state.updateUser({ phone: '...' })
+ import { Airbridge } from 'airbridge-react-native-sdk'
+ ...
+ Airbridge.setUserID('...')
+ Airbridge.setUserEmail('...')
+ Airbridge.setUserPhone('...')
```

### Additional settings

The `Airbridge.setAttributionListener` function has been replaced with the `Airbridge.SetOnAttributionReceived` function.

```diff lines theme={"theme":{"light":"github-dark-dimmed","dark":"github-dark-dimmed"}}
- import Airbridge from 'airbridge-react-native-sdk'
- ...
- Airbridge.setAttribuitonListener((attribution) => {
-     // using attribution
- })
+ import { Airbridge } from 'airbridge-react-native-sdk'
+ ...
+ Airbridge.setOnAttributionReceived((attribution) => {
+     // using attribution
+ })
```

The `Airbridge.placement.click` , `Airbridge.placement.impression` functions have been replaced with the `Airbridge.click` , `Airbridge.impression` functions.

```diff lines theme={"theme":{"light":"github-dark-dimmed","dark":"github-dark-dimmed"}}
- import Airbridge from 'airbridge-react-native-sdk'
- ...
- Airbridge.placement.click(url)
- Airbridge.placement.impression(url)
+ import { Airbridge } from 'airbridge-react-native-sdk'
+ ...
+ Airbridge.click(url)
+ Airbridge.impression(url)
```

The `Airbridge.createWebInterface` function has been replaced with the `Airbridge.createWebInterfaceScript` , `Airbridge.handleWebInterfaceCommand` functions.

```diff lines theme={"theme":{"light":"github-dark-dimmed","dark":"github-dark-dimmed"}}
- import Airbridge from 'airbridge-react-native-sdk'
- ...
- const { script, handle } = Airbridge.createWebInterface(
-     'YOUR_WEB_TOKEN',
-     (command) => { 
-         return `window.ReactNativeWebView.postMessage(${command})`
-     },
- )
- <WebView
-     source={{ uri: 'https://...' }}
-     onMessage={(command) => { handle(command) }}
-     injectedJavaScript={script} />
+ import { Airbridge } from 'airbridge-react-native-sdk'
+ ...
+ const script = await Airbridge.createWebInterface(
+     'YOUR_WEB_TOKEN',
+     'window.ReactNativeWebView.postMessage(payload)',
+ )
+ <WebView
+     source={{ uri: 'https://...' }}
+     onMessage={(command) => { Airbridge.handleWebInterfaceCommand(command) }}
+     injectedJavaScript={script} />
```

## Update within v2.x

See the major changes in each version of the Expo SDK.

### v2.6.0 - Deep Link

For apps registered with Airbridge after September 4, 2023, an issue where the deep link URL provided in the deep link callback was decoded twice from the content entered in the Airbridge dashboard has been resolved. This issue was found in versions v2.7.3 to v2.5.1.

### v2.5.1 - Deep Link

For apps registered with Airbridge after September 4, 2023, the "airbridge\_referrer" will no longer be added to the deep link URL provided in the deep link callback.

In the case of an iOS app update, the last calculated SKAdNetwork Conversion Value is finalized. No additional calculations are processed.

* In versions earlier than v2.5.1, the SKAdNetwork Conversion Value is only calculated for up to 24 hours.
* This does not affect users who newly installed the app.

`deeplink.page` has been deprecated. From v2.5.1, we recommend writing code using the deep link domain, `abr.ge`.

* `deeplink.page` will still be supported and functioning for backward compatibility.

### v2.5.0 - User privacy

The default value for `trackingAuthorizeTimeout` has been changed to 30 seconds.

<link rel="alternate" hrefLang="en" href="https://help.airbridge.io/en/developers/migration-guide-for-expo-sdk-v4" />

<link rel="alternate" hrefLang="ko" href="https://help.airbridge.io/ko/developers/migration-guide-for-expo-sdk-v4" />
