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Vonage, formerly known as Nexmo, provides a robust SMS Communication API that allows developers to integrate SMS capabilities into their applications. This tool is essential for sending and receiving SMS messages globally, enabling businesses to communicate effectively with their customers.
When working with the Vonage/Nexmo API, you may encounter an 'Invalid Signature' error. This error typically appears when the request signature does not match the expected value, preventing successful API communication.
Request signatures are used to verify the authenticity of requests sent to the API. They ensure that the request has not been tampered with and is from a legitimate source.
The most common cause of an invalid signature is an incorrect signing of the request. This can occur due to an incorrect API secret or improper signature generation.
Ensure that you are using the correct API key and secret. You can verify your credentials in the Vonage Dashboard.
Follow these steps to correctly sign your request:
Refer to the Vonage API Documentation for detailed instructions on signing requests.
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