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Event Webhook Go Code Example

Parse Webhook

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We recommend using our official Go SDK, our client library with full documentation, when integrating with SendGrid's Inbound Parse Webhook.

In this example, we want to parse all emails at address@email.sendgrid.biz and post the parsed email to http://sendgrid.biz/upload

Given this scenario, the following are the parameters you would set at the Parse API settings page:

Hostname: email.sendgrid.biz

URL: http://sendgrid.biz/upload

To test this scenario, we sent an email to example@example.com and created the following code:

1
2package main
3
4import (
5        "fmt"
6        "net/http"
7        "io/ioutil"
8        "log"
9        "github.com/sendgrid/sendgrid-go"
10
11)
12
13func Parse (w http.ResponseWriter, req *http.Request) {
14        //Get Email Values
15        to := req.FormValue("from")
16        subject := req.FormValue("subject")
17        body:= req.FormValue("text")
18
19        //Get Uploaded File
20        file, handler, err := req.FormFile("attachment1")
21        if err != nil {
22                fmt.Println(err)
23        }
24        data, err := ioutil.ReadAll(file)
25        if err != nil {
26                fmt.Println(err)
27        }
28        err = ioutil.WriteFile(handler.Filename, data, 0777)
29        if err != nil {
30                fmt.Println(err)
31        }
32}
33
34func main() {
35        http.HandleFunc("/upload", Parse)
36        err := http.ListenAndServe(":3000", nil)
37        if err != nil {
38                log.Fatal("ListenAndServe: ", err)
39        }
40}
41