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How to send E-Mails based on Confluence Page Content with REST-API

Artur A_

Hello,
I would like to write a java based app that sends e-mails using the confluence REST-API.

Formerly I wrote a bot that did that using the frontend after updating the page(not nice, but worked fine). The basic steps were:

1. Update(PUT) page with new content (daily report)
2. Send e-mail using the frontend (share feature)

I can imagine the app working like:

Option1: Use PUT to update page, use an not yet known way to send an email using Rest-API.
Option2: Use PUT to update page, use another way to send an e-mail with the already available content using Java.

I think option2 would be enough to get the results we need.
I still would like to know if there is a "nice" way of confluence doing that.

Any hints appreciated. Thank you.

Accepted answers

Thomas Deiler_db00h3

Dear @Artur A_ ,

welcome to the community.

Unfortunately the REST API doesn't allow to direct send mails. They are only sent when you change content and somebody is a watcher. (Btw. You can modify the watchers with REST.)

So I recommend option 2. Java Mail Api is simple to use:

import javax.mail.*;
import java.util.Properties;

public class SendMail {

private Properties props;
private Session session;

public SendMail (String host, String port) {
  this.props = new Properties();
  this.props.put("mail.smtp.host", host);
  this.props.put("mail.smtp.port", port);
  this.props.put("mail.transport.protocol","smtp");
  this.props.put("mail.smtp.auth", "false");
  this.session = Session.getDefaultInstance(props, null);
}

public void send(String subject, String msgBody, String from, String[] to) {
  try {
    Message msg = new MimeMessage(session);
    msg.setFrom(new InternetAddress(from));
    for (int i=0; i<to.length; i++) {
      msg.addRecipient(Message.RecipientType.TO, new InternetAddress(to[i]));
    }
    msg.setSubject(subject);
    msg.setText(msgBody);
    Transport.send(msg);
  } catch (MessagingException e) {
    String msg = "Send failed. " + e.getMessage();
    throw new RuntimeException(msg);
  }
}

}

So long

Thomas

All comments

Thomas Deiler_db00h3

Dear @Artur A_ ,

welcome to the community.

Unfortunately the REST API doesn't allow to direct send mails. They are only sent when you change content and somebody is a watcher. (Btw. You can modify the watchers with REST.)

So I recommend option 2. Java Mail Api is simple to use:

import javax.mail.*;
import java.util.Properties;

public class SendMail {

private Properties props;
private Session session;

public SendMail (String host, String port) {
  this.props = new Properties();
  this.props.put("mail.smtp.host", host);
  this.props.put("mail.smtp.port", port);
  this.props.put("mail.transport.protocol","smtp");
  this.props.put("mail.smtp.auth", "false");
  this.session = Session.getDefaultInstance(props, null);
}

public void send(String subject, String msgBody, String from, String[] to) {
  try {
    Message msg = new MimeMessage(session);
    msg.setFrom(new InternetAddress(from));
    for (int i=0; i<to.length; i++) {
      msg.addRecipient(Message.RecipientType.TO, new InternetAddress(to[i]));
    }
    msg.setSubject(subject);
    msg.setText(msgBody);
    Transport.send(msg);
  } catch (MessagingException e) {
    String msg = "Send failed. " + e.getMessage();
    throw new RuntimeException(msg);
  }
}

}

So long

Thomas

Artur A_

Hello Thomas,

thank you for your swift and clear answer. Much appreciated.

Thomas Deiler_db00h3

Dear @Artur A_

don't forget to press the "green accept answer" button to indicate other readers the successful answering of your question.

So long
Thomas

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