How to decode the base64 data from LoRaWan gateway F8926-GW?

General
1

Hi, I am establishing a project using F8926-GW LoRaWan Gateway to transmit the data to IPC. The LoRaWan gateway is transmitting base64 data, how am I going to decode the base64 data by using Node Red?

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2

Give this a try:

// 1. Check if the payload exists and is a string
if (typeof msg.payload === 'string') {
    
    // 2. Convert the base64 string into a Node.js Buffer
    let decodedBuffer = Buffer.from(msg.payload, 'base64');
    
    // 3. Convert the Buffer into a standard UTF-8 string
    msg.payload = decodedBuffer.toString('utf8');
}

return msg;

Returns "abcd" from your example.