gomap

package main

import (
	"fmt"
	"log"
	"os"
	"time"

	"github.com/cwinters8/gomap"
	"github.com/google/uuid"
)

func main() {
	mail, err := gomap.NewClient(
		"https://api.fastmail.com/jmap/session",
		os.Getenv("BEARER_TOKEN"),
		gomap.DefaultDrafts,
		gomap.DefaultSent,
	)
	if err != nil {
		log.Fatal(err)
	}

	// send an email with a unique identifier
	from := gomap.NewAddress("Clark Winters", "[email protected]")
	to := gomap.NewAddress("Tester Gopher", "[email protected]")

	id := uuid.New()
	strID := id.String()

	if err := mail.SendEmail(
		gomap.NewAddresses(from),
		gomap.NewAddresses(to),
		"Hello from gomap!",
		fmt.Sprintf("ID: %s", strID),
		false,
	); err != nil {
		log.Fatal(err)
	}

	// retrieve the email
	emails, err := mail.GetEmails(&gomap.Filter{Text: strID}, 1, 30*time.Second)
	if err != nil {
		log.Fatal(err)
	}
	if len(emails) > 0 {
		email := emails[0]
		wantBody := fmt.Sprintf("ID: %s", strID)
		fmt.Println("found email:")
		fmt.Printf("\tfrom: %+v\n", *email.From[0])
		fmt.Printf("\tto: %+v\n", *email.To[0])
		fmt.Printf("\tsubject: %s\n", email.Subject)
		if email.Body.Value != wantBody {
			log.Fatalf("retrieved email body %q does not match expected body %q", email.Body.Value, wantBody)
		}
		fmt.Println("\tbody: ID: <generated>")
	}

}

Output:
found email:
	from: {Name:Clark Winters Email:[email protected]}
	to: {Name:Tester Gopher Email:[email protected]}
	subject: Hello from gomap!
	body: ID: <generated>

package main

import (
	"log"
	"os"

	"github.com/cwinters8/gomap"
)

func main() {
	mail, err := gomap.NewClient(
		"https://api.fastmail.com/jmap/session",
		os.Getenv("BEARER_TOKEN"),
		gomap.DefaultDrafts,
		gomap.DefaultSent,
	)
	if err != nil {
		log.Fatal(err)
	}

	// send an email
	from := gomap.NewAddress("Clark Winters", "[email protected]")
	to := gomap.NewAddress("Tester Gopher", "[email protected]")

	if err := mail.SendEmail(
		gomap.NewAddresses(from),
		gomap.NewAddresses(to),
		"Hello from gomap!",
		"Hello Tester Gopher,\n\nNice to meet you.",
		false,
	); err != nil {
		log.Fatal(err)
	}
}

Output: