fix: refactor and fix inbound email handling

[eshanholtz]

Fixes #383

[codecov]

Codecov Report

Merging #388 into master will increase coverage by 22.75%.
The diff coverage is 91.66%.

@@             Coverage Diff             @@
##           master     #388       +/-   ##
===========================================
+ Coverage   72.47%   95.23%   +22.75%     
===========================================
  Files           3        3               
  Lines         476      399       -77     
===========================================
+ Hits          345      380       +35     
+ Misses        127       14      -113     
- Partials        4        5        +1     

Impacted Files	Coverage Δ
helpers/inbound/inbound.go	89.28% <91.66%> (+78.00%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 49500d8...49b5251. Read the comment docs.

[thinkingserious]

Need to update the README. We can no longer do go run inbound.go as it returns go run: cannot run non-main package.

[thinkingserious]

Awesome refactor! 🥇

[thinkingserious]

We can now delete conf.json since the Heroku deploy functionality is removed.

Not sure if this is in scope (perhaps we create a separate issue for this), but it feels like we should have at least one working "hello inbound email" email example. Something simple, like the following:

package main

import (
	"fmt"
	"log"
	"net/http"

         "github.com/sendgrid/sendgrid-go/helpers/inbound"
)

func inboundHandler(response http.ResponseWriter, request *http.Request) {
	parsedEmail := Parse(response, request)

	fmt.Print(parsedEmail.Headers["From"])

	for filename, contents := range parsedEmail.Attachments {
		// Do something with an attachment
		handleAttachment(filename, contents)
	}

	for section, body := range parsedEmail.Body {
		// Do something with the email body
		handleEmail(body)
	}
}

func main() {
	http.HandleFunc("/inbound", inboundHandler)
	if err := http.ListenAndServe(":8000", nil); err != nil {
		log.Fatalln("Error")
	}
}

[childish-sambino]

Woohoo: +195 −302