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Airship is a leading Push Communication API provider that enables developers to send notifications and messages to users across various platforms. It is widely used in production applications for its robust features and reliable delivery mechanisms. Airship's APIs are designed to enhance user engagement by providing timely and relevant notifications.
One common issue developers encounter when using Airship is the 'Invalid Time to Live (TTL)' error. This error typically manifests when attempting to send a push notification, and the system rejects the request due to an invalid TTL value. The TTL determines how long a message should be retained for delivery if the device is offline.
The 'Invalid Time to Live (TTL)' error occurs when the TTL value specified in the API request is outside the acceptable range defined by Airship. The TTL is crucial for ensuring messages are delivered within a relevant timeframe, and setting it incorrectly can lead to delivery failures.
Airship's documentation specifies the acceptable range for TTL values. Typically, TTL should be set between a few seconds to several days, depending on the use case. Setting a TTL value outside this range triggers the error.
To fix the 'Invalid Time to Live (TTL)' error, follow these steps:
First, consult the Airship API documentation to understand the acceptable range for TTL values. Ensure that your TTL settings align with these guidelines.
In your API request, modify the TTL parameter to fall within the specified range. For example, if the documentation states a maximum TTL of 604800 seconds (7 days), ensure your TTL does not exceed this limit.
{
"audience": "all",
"notification": {
"alert": "Hello, World!"
},
"device_types": ["ios", "android"],
"options": {
"ttl": 3600 // Set TTL to 1 hour
}
}
After adjusting the TTL value, test the push notification to ensure it is accepted by the Airship API. Monitor the response to confirm that the error is resolved.
By understanding the acceptable TTL range and adjusting your API requests accordingly, you can effectively resolve the 'Invalid Time to Live (TTL)' error in Airship. For further assistance, refer to Airship's support resources or community forums.
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