let listen_slp = async function () {
    var query = {
        "v": 3,
        "q": {"find": {}},
        "r": {"f": "[ .[] | { txid: .tx.h, out: .slp.detail.outputs?, in: .in[0].e.a, token: .slp.detail.tokenIdHex, valid: .slp.valid }]"}
    }

    var socket = new EventSource('https://slpstream.fountainhead.cash/s/'+btoa(JSON.stringify(query)))

    socket.onopen = function() {console.log('Connected to SLPStream at ' + (new Date().getTime()))}
    socket.onmessage = function(event) {
        var event = JSON.parse(event.data)
        if(event.type == 'mempool' && event.data[0].valid) {

        }
    }
    socket.onerror = function(err) {
        console.error('[Error SLPStream at ' + (new Date().getTime()) + ']:')
        console.error(err)
    }
}