Edwiges

Under development!

Edwiges is a simple service written in Python/Pyramid/Cornice that can take a REST JSON request and use it to send emails using SMTP. It does supports attachments and metainfo.

The basic premise is that on a microservice architecture we don't want all services to be able to send e-mails directly. SMTP seems easy at first-glance, but it can get very tricky as you include more complex features. REST is idiomatic and easy to use in most languages, plus, by having a separated service, you can get zero-cost monitoring and metrics.

As long term goals we want Edwiges to be able to handle everything related to an email flow, such as consumable metrics, warnings, rendering templates, scheduling, retrying and so on.

Running locally:

Clone this repository and run:

export EDWIGES_PROVIDER_HOST=YOUR_HOST
export EDWIGES_PROVIDER_USERNAME=YOUR_USER
export EDWIGES_PROVIDER_PASSWORD=YOUR_PASSWORD

python setup.py develop
pserve edwiges.ini  --reload

Note

You can also set the provider information on your .ini file.

With docker:

export EDWIGES_PROVIDER_HOST=YOUR_HOST
export EDWIGES_PROVIDER_USERNAME=YOUR_USER
export EDWIGES_PROVIDER_PASSWORD=YOUR_PASSWORD

docker-compose up

API Quick Reference

Note: these examples were performed using GMail, responses can change according to the provider. You may need to enable https://myaccount.google.com/lesssecureapps to use Edwiges with Gmail.

GET / - Server Test

Request:

$ http -v get localhost:10085
GET / HTTP/1.1
Accept: */*
Accept-Encoding: gzip, deflate
Connection: keep-alive
Host: localhost:10085
User-Agent: HTTPie/0.9.9

Response:

HTTP/1.1 200 OK
Content-Length: 62
Content-Type: application/json
Date: Sat, 22 Jul 2017 05:05:47 GMT
Server: waitress
X-Content-Type-Options: nosniff

{
    "errors": [],
    "status": "2.0.0 OK s6sm4499738qki.44 - gsmtp"
}

POST /mail - Send Email

Request:

$ echo '{"sender": "[email protected]", \
         "recipients": ["[email protected]"], \
         "subject": "Grrr", \
         "body": "Hello from edwiges"}' | http -v post localhost:10085/mail
POST /mail HTTP/1.1
Accept: application/json, */*
Accept-Encoding: gzip, deflate
Connection: keep-alive
Content-Length: 122
Content-Type: application/json
Host: localhost:10085
User-Agent: HTTPie/0.9.9

{
    "body": "Hello from edwiges",
    "recipients": [
        "[email protected]"
    ],
    "sender": "[email protected]",
    "subject": "Grrr"
}

Response:

HTTP/1.1 200 OK
Content-Length: 139
Content-Type: application/json
Date: Sat, 22 Jul 2017 05:04:22 GMT
Server: waitress
X-Content-Type-Options: nosniff

{
    "body": "Hello from edwiges",
    "recipients": [
        "[email protected]"
    ],
    "sender": "[email protected]",
    "status": "sent",
    "subject": "Grrr"
}

Note

Authentication has not been implemented yet, at Loggi we currently protect the service API in production using a firewall, but pull requests are very welcome. :)