readwise.js

const SOURCE_TYPE = "drafts";
const BASE_URL = "https://readwise.io/api/v2/";

let selectedText;
if (editor.getSelectedText().length > 0) {
  selectedText = editor.getSelectedText();
} else {
  selectedText = draft.content;
}

let selectedBook = selectBook(getEntriesFromReadwise);
if (selectedBook != "cancelled") {
  postToReadwise(selectedText, selectedBook);
}

function selectBook(data) {
  let actionPrompt = new Prompt();
  actionPrompt.isCancellable = true;

  entries = getEntriesFromReadwise();
  entries.forEach(function (bookTitle) {
    actionPrompt.addButton(bookTitle);
  });

  actionPrompt.addButton("New Book");

  let userSelectedAButton = actionPrompt.show();
  let selectedBook = "userCancelled";

  if (userSelectedAButton) {
    selectedBook = actionPrompt.buttonPressed;
  } else {
    app.displayInfoMessage("Prompt was cancelled.");
    context.cancel();
    return "cancelled";
  }

  if (selectedBook == "New Book") {
    let newBookPrompt = new Prompt();
    newBookPrompt.addTextField("bookName", "New Book", "Name");
    newBookPrompt.addButton("OK");
    let userSelectedAButtonNewBook = newBookPrompt.show();

    if (userSelectedAButtonNewBook) {
      selectedBook = newBookPrompt.fieldValues["bookName"];
    } else {
      app.displayInfoMessage("Prompt was cancelled.");
      context.cancel();
      return "cancelled";
    }
  }
  return selectedBook;
}

function getEntriesFromReadwise() {
  const GET_URL = BASE_URL + "books/?source=" + SOURCE_TYPE + "&page_size=5";

  let credReadwise = Credential.create(
    "Readwise",
    "Highlight surfacing service."
  );
  credReadwise.addPasswordField("token", "API Token");
  credReadwise.authorize();

  let httpMain = HTTP.create();
  let respMain = httpMain.request({
    url: GET_URL,
    method: "GET",
    headers: {
      Authorization: `Token ${credReadwise.getValue("token")}`,
    },
  });

  let entries = [];

  if (respMain.statusCode == 200) {
    let responseText = respMain.responseText;
    let responseData = JSON.parse(responseText);
    let bookResults = responseData.results;

    bookResults.forEach(function (book) {
      entries.push(book.title);
    });

    entries.push("Quotes");
  } else {
    console.log("Error in getting books");
  }

  return entries;
}

function postToReadwise(selectedText, selectedBook) {
  const POST_URL = BASE_URL + "highlights/";

  let credReadwise = Credential.create(
    "Readwise",
    "Highlight surfacing service."
  );
  credReadwise.addPasswordField("token", "API Token");
  credReadwise.authorize();

  if (selectedBook) {
    let httpMain = HTTP.create();
    let respMain = httpMain.request({
      url: POST_URL,
      method: "POST",
      data: {
        highlights: [
          {
            text: selectedText,
            title: selectedBook.toString(),
            source_type: SOURCE_TYPE,
          },
        ],
      },
      headers: {
        Authorization: `Token ${credReadwise.getValue("token")}`,
      },
    });

    if (respMain.success) {
      return true;
    } else {
      console.log(`[${respMain.statusCode}] ${respMain.error}`);
      return false;
    }
  } else {
    // Nothing to do
  }
}