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Receiving XML Events via Email

Purpose:

This application demonstrates how to use siddhi-io-email for receiving events from emails.

Prerequisites:

  1. Add relevant siddhi-io-email and siddhi-map-xml jars to the {WSO2Home}/lib folder if not exist.

  2. Make sure you have provide less secure access to the sender's email account. eg: For gmail this can be done by visiting https://myaccount.google.com/lesssecureapps.

  3. Edit the siddhi app by providing following details.

    • receiver_email_username
    • receiver_email_password
  4. Give the subject of the email to . For further information search.terms refer https://wso2-extensions.github.io/siddhi-io-email/api/1.0.9/.

  5. Save this sample.

Executing the Sample:

  1. Start the Siddhi application by clicking on 'Run'.
  2. If the Siddhi application starts successfully, the following messages would be shown on the console.
    ReceiveEmailInXmlFormat.siddhi - Started Successfully!
  3. Send an email with the body in following format to receiver's email address.
    <events>
        <event>
            <name>WSO2</name>
            <amount>34.56</amount>
        </event>
    </events>
  4. The message should be logged in the console.
@App:name("ReceiveEmailInXmlFormat")


@source(type='email', @map(type='xml'),
username='<receiver_username>',
password='<receiver_email_password>',
store = 'imap' ,
host = 'imap.gmail.com',
folder = 'INBOX',
ssl.enable = 'true' ,
polling.interval = '30' ,
search.term = 'subject:<subject_of_mail>' ,
content.type = 'text/plain')
define stream SweetProductionStream (name string, amount double);

@sink(type='log')
define stream LowProductionAlertStream (name string, hourlyTotal double, currentHour double);

from SweetProductionStream
select name, sum(amount) as hourlyTotal,
convert(time:extract('HOUR', time:currentTimestamp(), 'yyyy-MM-dd hh:mm:ss'), 'double') as currentHour
insert into LowProductionAlertStream;
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