const response = await fetch('http://srpc.solapi.pro/?api_key=<api-key>', {
method: 'POST',
headers: {
"Content-Type": "application/json"
},
body: JSON.stringify({
"jsonrpc": "2.0",
"id": "1",
"method": "getFeeForMessage",
"params": [
"AQABAgIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEBAQAA"
]
}),
});
const data = await response.json();
{
"jsonrpc": "2.0",
"id": "1",
"result": {
"context": {
"slot": 5068
},
"value": 5000
}
}