Retrieve a CSV file received over Gmail from a specific email address to a specific Google Sheet

Question

Goals of the problem:

• Retrieve the message from Gmail using the email address.
• Retrieve the CSV files from the attachment files and put them on a sheet in Google Spreadsheet. Remove 1st 2 rows from the CSV data. (Remove the past data on Google Sheets and update it with the new CSV data whenever received from the specific email address).
• Achieve this using Google Apps Script.

Already tried: Automate a CSV file received over Gmail from a specific email id to a specific Google Sheet

But nothing is solving the above 3 problems in specific.

function myFunction() {
  const messageId = "###"; // Please set the message ID of Gmail.
  const sheetName = "Sheet1"; // Please set the sheet name you want to put the values.
  const delimiter = ","; // If your CSV data uses the specific delimiter, please set this.
  const skipRows = 2; // 2 is from your question.

  // 1. Retrieve message.
  const message = GmailApp.getMessageById(messageId);

  // 2. Retrieve attachment files.
  const attachments = message.getAttachments();
  if (attachments.length == 0) {
    console.log("No attachment files.");
    return;
  }

  // 3. Create an array for putting to Spreadsheet from the CSV data of attachment files.
  const values = attachments.reduce((ar, e) => {
    if (e.getContentType() == MimeType.CSV || e.getName().includes(".csv")) {
      ar = [...ar, ...Utilities.parseCsv(e.getDataAsString(), delimiter).splice(skipRows)];
    }
    return ar;
  }, []);
  if (values.length == 0) {
    console.log("No values.");
    return;
  }

  // 4. Put the values to Spreadsheet.
  const sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName(sheetName); // and, you can also use. const sheet = SpreadsheetApp.openById("###spreadsheetId###").getSheetByName(sheetName);
  sheet.getRange(sheet.getLastRow() + 1, 1, values.length, values[0].length).setValues(values);
}

Tried the above code but it shows an error Exception: Invalid argument: at myFunction(Code:8:28)

FYI, I also want to use Sheet ID instead of Sheet Name

Answer 1

Try (put the spreadsheet ID, the subject -if you have multiple words please specify as in the example hereafter- and the email of the sender hereafter):

const getGmailAttachment = () => {
  const ssID = '############'
  const searchQuery = 'from:######@gmail.com in:inbox has:attachment subject:##### subject:###';
  const threads = GmailApp.search(searchQuery, 0, 1);
  threads.forEach(thread => {
    const message = thread.getMessages()[Number(thread.getMessageCount() - 1)];
    const attachments = message.getAttachments();
    attachments.forEach((attachment, i) => {
      if (i == 0) {
        console.log(attachment.getName())
        const sheet = SpreadsheetApp.openById(ssID).getSheets()[0];
        sheet.getDataRange().clearContent()
        const csvData = Utilities.parseCsv(attachment.getDataAsString()).splice(2); // except 2 first rows
        sheet.getRange(1, 1, csvData.length, csvData[0].length).setValues(csvData);
      }
    });
  });
};

references

GmailApp.search

search syntax

getAttachments()

Utilities.parseCsv