Mission
Application to probe gmail for csv bank statement attachments and upload to elastic search

The following environment are setup to achieve this:

GOOGLE_APPLICATION_CREDENTIALS
The credentials file used to authenticate to gmail. More details here https://cloud.google.com/docs/authentication/production

APP_SERVER_PORT
Port on which this application server will run. Default is 3000

APP_GOOGLE_AUTHORIZED_EMAIL_ADDRESS
The authorized gmail account from which csv bank statements will be probed.
No default. THIS IS REQUIRED. e.g '[email protected]'

APP_GMAIL_GET_MESSAGES_CHUNK_SIZE
This is the used for pagination size when probing messages in gmail. Default is 100

APP_ELASTICSEARCH_URL
The elasticsearch URL used when uploading bank statements. Default is 'http://localhost:9200'

APP_ELASTICSEARCH_INDEX
The elasticsearch INDEX used when uploading bank statements. Default is 'transactions'

APP_WAITING_PERIOD_BEFORE_NEXT_RUN_IN_SECONDS
To prevent multiple overlapping probe operations, this application can only run next after waiting x number of seconds. Default is 120
You may bypass this using query parameter force in the url e.g /[label-name]?force

How to use
You may specify the gmail label(in [labelName] of the url) that will be probed for messages with bank statements. Default is 'INBOX'.

e.g http://[host]:[port]/[labelName]
e.g http://localhost:3000/FNB-Bank-Statements

You may use force to bypass the waiting period
e.g http://localhost:3000/FNB-Bank-Statements?force