diff --git a/joplin.js b/joplin.js
index a1a26d4..ae2cae7 100644
--- a/joplin.js
+++ b/joplin.js
@@ -1,14 +1,16 @@
 import fetch from 'node-fetch'
 import 'dotenv/config'
 
-let url = new URL("http://localhost:" + process.env.JOPLIN_CLIPPER_PORT + "/notes")
-url.searchParams.append("token", process.env.JOPLIN_TOKEN)
 
+//This function gets notes from a specified notebook, using the notebook's ID. The fields parameter specifies which fields to include in the response.
+// @param {string=} notebookID - The id of the notebook you want to get notes from, as extracted from the notebook's external link
+// @param {Array[string]=} fields - The specific fields wanted in the returned response. Valid fields can be found in this table: https://joplinapp.org/api/references/rest_api/#properties
+async function getNotesFromNotebook(notebookID, fields) {
+    const fieldsString = fields.join()
 
-async function getNotesFromNotebook(notebookID) {
-    let foldersURL = new URL("http://localhost:" + process.env.JOPLIN_CLIPPER_PORT + "/folders/" + process.env.JOPLIN_NOTEBOOK_ID + "/notes")
+    let foldersURL = new URL("http://localhost:" + process.env.JOPLIN_CLIPPER_PORT + "/folders/" + notebookID + "/notes")
     foldersURL.searchParams.append("token", process.env.JOPLIN_TOKEN)
-    foldersURL.searchParams.append("fields", "id,title,body,created_time,updated_time,latitude,longitude,altitude,is_todo,todo_due,todo_completed")
+    foldersURL.searchParams.append("fields", fieldsString)
 
     const res = await fetch(foldersURL.href)
     const data = await res.json()
@@ -16,5 +18,5 @@ async function getNotesFromNotebook(notebookID) {
     return data
 }
 
-getNotesFromNotebook()
+getNotesFromNotebook(process.env.JOPLIN_NOTEBOOK_ID, ["id", "title", "body", "created_time", "latitude", "longitude", "altitude", "is_todo", "todo_due", "todo_completed"])
     .then(res => console.log(res))
\ No newline at end of file