Mail api for sending order confirmation to planetposen customers

client/sendgrid/send_order_confirmation.go

@@ -0,0 +1,56 @@
+package sendgrid
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"github.com/kevinmidboe/planetposen-mail/client"
+	"github.com/kevinmidboe/planetposen-mail/mail"
+	"net/http"
+)
+
+// SendOrderConfirmation sends an order confirmation.
+func (c *Client) SendOrderConfirmation(ctx context.Context, record mail.OrderConfirmationEmailData) error {
+	reqBody := sendEmailPayload{
+		Personalizations: []personalization{
+			{
+				To: []email{
+					{
+						Email: record.ToEmail,
+					},
+				},
+				Subject: record.Subject,
+			},
+		},
+		From: email{
+			Email: record.FromEmail,
+			Name:  record.FromName,
+		},
+		Content: []content{
+			{
+				Type:  "text/html",
+				Value: record.Markup,
+			},
+		},
+	}
+	jsonPayload, err := json.Marshal(reqBody)
+
+	if err != nil {
+		return fmt.Errorf("error marshalling sendEmailPayload: %w", err)
+	}
+	reqData := client.HTTPRequestData{
+		Method: http.MethodPost,
+		URL:    fmt.Sprintf("%s/v3/mail/send", c.Endpoint),
+		Headers: map[string]string{
+			"Content-Type":  "application/json",
+			"Authorization": fmt.Sprintf("Bearer %s", c.APIKey),
+		},
+		PostPayload: jsonPayload,
+	}
+	_, err = c.HTTPClient.RequestBytes(ctx, reqData)
+	if err != nil {
+		return fmt.Errorf("error making request to sendgrid to send email: %w", err)
+	}
+
+	return nil
+}

client/sendgrid/sendgrid.go

@@ -0,0 +1,45 @@
+package sendgrid
+
+import (
+	"time"
+
+	"github.com/kevinmidboe/planetposen-mail/client"
+	"github.com/kevinmidboe/planetposen-mail/config"
+)
+
+// Client holds the HTTP client and endpoint information.
+type Client struct {
+	Endpoint   string
+	APIKey     string
+	HTTPClient client.HTTPClient
+}
+
+// Init sets up a new sendgrid client.
+func (c *Client) Init(config *config.Config) error {
+	timeout := 5 * time.Second
+	c.Endpoint = config.SendGridAPIEndpoint
+	c.APIKey = config.SendGridAPIKey
+	c.HTTPClient = client.NewHTTPClient(client.Parameters{Timeout: &timeout})
+	return nil
+}
+
+type sendEmailPayload struct {
+	Personalizations []personalization `json:"personalizations"`
+	From             email             `json:"from"`
+	Content          []content         `json:"content"`
+}
+
+type personalization struct {
+	To      []email `json:"to"`
+	Subject string  `json:"subject"`
+}
+
+type email struct {
+	Email string `json:"email"`
+	Name  string `json:"name"`
+}
+
+type content struct {
+	Type  string `json:"type"`
+	Value string `json:"value"`
+}