aria2 downloads

dl2.bookmarklet.js

const link = window.prompt("Enter URL");
fetch("http://127.0.0.1:6800/jsonrpc", {
  method: "POST",
  headers: {
    "content-type": "application/x-www-form-urlencoded"
  },
  body: JSON.stringify({
    jsonrpc: "2.0",
    id: "someID",
    method: "aria2.addUri",
    params: [
      "token:TOKEN_STRING",
      [link],
      { out: link.split("/").pop() }
    ]
  })
});

dl2.sh

function dl2() {  
  link=$1
  # get params[0].out filename by link
  filename=$(basename -- "$link")
  extension="${filename##*.}"
  filename="${filename%.*}"
  out_filename="$filename.out.$extension"
  
  curl -X POST -H "Content-Type: application/json" -d '{
    "jsonrpc": "2.0",
    "id": "someID",
    "method": "aria2.addUri",
    "params": [
      "token:TOKEN_STRING",
      ["'$link'"],
      { "out": "'$out_filename'" }
    ]
  }' http://127.0.0.1:6800/jsonrpc
}