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Expo Push InvalidAPIVersion error encountered when making a request to Expo Push API.

The API version specified in the request is not supported.

Understanding Expo Push API

Expo Push API is a service provided by Expo that allows developers to send push notifications to their applications. It is particularly useful for applications built using the Expo framework, enabling seamless integration of push notifications without the need for complex setup. The API is designed to handle large volumes of notifications efficiently, making it a popular choice for developers looking to enhance user engagement through timely alerts and updates.

Identifying the Symptom: InvalidAPIVersion Error

When working with the Expo Push API, you might encounter an error message stating InvalidAPIVersion. This error typically appears when a request is made to the API using an unsupported version number. As a result, the API cannot process the request, leading to a failure in sending notifications.

Common Scenarios

This error often occurs during the initial setup of the API or when there are updates to the API versions that have not been accounted for in the application code.

Exploring the Issue: InvalidAPIVersion

The InvalidAPIVersion error is a clear indication that the API version specified in your request is not recognized by the Expo Push API. Each API version comes with specific features and deprecations, and using an outdated or incorrect version can lead to compatibility issues.

Root Cause Analysis

The root cause of this issue is typically the use of an incorrect API version in the request header or URL. This can happen if the application code has not been updated to reflect the latest supported API versions.

Steps to Resolve the InvalidAPIVersion Error

To resolve this issue, follow these steps:

Step 1: Check the Current API Version

Visit the Expo Push Notifications Documentation to verify the latest supported API version. Ensure that your application is using this version in its requests.

Step 2: Update Your Request

Locate the part of your code where the API version is specified. This is usually found in the request header or URL. Update it to the latest version number as per the documentation.

const response = await fetch('https://exp.host/--/api/v2/push/send', {
method: 'POST',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json',
'Accept-Encoding': 'gzip, deflate',
'X-API-Version': '2.0.0' // Ensure this is the correct version
},
body: JSON.stringify({
to: 'ExponentPushToken[xxxxxxxxxxxxxxxxxxxxxx]',
sound: 'default',
body: 'Hello world!'
})
});

Step 3: Test the Request

After updating the API version, test the request to ensure that the error is resolved. You should no longer see the InvalidAPIVersion error, and your push notifications should be sent successfully.

Conclusion

By ensuring that your application uses the correct API version, you can avoid the InvalidAPIVersion error and maintain seamless push notification functionality. Regularly checking the Expo Documentation for updates will help you stay informed about any changes to the API versions.

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Expo Push InvalidAPIVersion error encountered when making a request to Expo Push API.

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