Use resend instead of sendgrid for emails

send-email.sh

@@ -0,0 +1,69 @@
+#!/usr/bin/bash
+
+# Default values
+email_from=""
+email_name=""
+email_to=""
+subject=""
+message=""
+script_dir="$(dirname $0)"
+key_file="$script_dir/email_api_key"
+
+print_usage () {
+   echo "Usage: "$0" -f EMAIL_FROM -n EMAIL_NAME -t EMAIL_TO -s SUBJECT -m MESSAGE [-k KEY_FILE]"
+   echo "EMAIL_FROM - sender's email address"
+   echo "EMAIL_NAME - sender's name"
+   echo "EMAIL_TO - recipient's email adress"
+   echo "KEY_FILE - a path to the file with API key (default: ./email_api_key)"
+}
+
+send_email () {
+   maildata='{"personalizations": [{"to": [{"email": "'${email_to}'"}]}],"from": {"email": "'${email_from}'",
+   "name": "'${email_name}'"},"subject": "'${subject}'","content": [{"type": "text/plain", "value": "'${message}'"}]}'
+   
+   curl -X "POST" "https://api.resend.com/emails" \
+      -H "Authorization: Bearer $api_key" \
+      -H "Content-Type: application/json" \
+      -d "$maildata"
+}
+
+while getopts "k:t:n:s:m:f:h" opt
+do
+   case $opt in
+      k)
+         key_file="${OPTARG}";;
+      t)
+         email_to="${OPTARG}";;
+      n)
+         email_name="${OPTARG}";;
+      s)
+         subject="${OPTARG}";;
+      m)
+         message="${OPTARG}";;
+      f)
+         email_from="${OPTARG}";;
+      h)
+        print_usage
+         exit 0;
+      ;;
+   esac
+done
+
+if [[ ! -f $key_file ]]; then
+    echo "API key file "${OPTARG}" does not exist"
+    exit 1;
+fi
+
+if [[ "$(stat -c "%a" $key_file)" != "400" ]]; then
+    echo "Unsafe API key file permissions"
+    exit 1;
+fi
+
+if [[ "$(wc -l $key_file | cut -d" " -f1)" != 1 ]]; then
+   echo "Wrong API key file format"
+   exit 1;
+fi
+
+api_key="$(cat $key_file)"
+
+send_email