Create SG.py

Author: Relkci

SG.py

@@ -0,0 +1,59 @@
+#!/usr/bin/env python3
+import argparse
+import json
+import sys
+import urllib.request
+
+API_URL = "https://api.sendgrid.com/v3/mail/send"
+
+def main():
+    p = argparse.ArgumentParser(description="Send a plain-text email via SendGrid")
+    p.add_argument("--api-key", required=True, help="SendGrid API key (SG.xxxxx)")
+    p.add_argument("--from", dest="from_email", required=True, help="From email")
+    p.add_argument("--to", required=True, nargs="+", help="To email(s), space-separated")
+    p.add_argument("--subject", required=True, help="Email subject")
+    p.add_argument("--text", required=True, help="Plain text body")
+    p.add_argument("--cc", nargs="*", default=[], help="CC email(s)")
+    p.add_argument("--bcc", nargs="*", default=[], help="BCC email(s)")
+    args = p.parse_args()
+
+    def add_personalizations(emails, field):
+        return [{ "email": e } for e in emails] if emails else None
+
+    payload = {
+        "personalizations": [{
+            "to": add_personalizations(args.to, "to"),
+            **({"cc": add_personalizations(args.cc, "cc")} if args.cc else {}),
+            **({"bcc": add_personalizations(args.bcc, "bcc")} if args.bcc else {}),
+            "subject": args.subject
+        }],
+        "from": { "email": args.from_email },
+        "content": [{
+            "type": "text/plain",
+            "value": args.text
+        }]
+    }
+
+    data = json.dumps(payload).encode("utf-8")
+    req = urllib.request.Request(API_URL, data=data, method="POST", headers={
+        "Authorization": f"Bearer {args.api_key}",
+        "Content-Type": "application/json"
+    })
+
+    try:
+        with urllib.request.urlopen(req) as resp:
+            # SendGrid returns 202 Accepted on success with an empty body
+            if resp.status == 202:
+                print("Email accepted by SendGrid (202).")
+            else:
+                print(f"Unexpected status: {resp.status}")
+    except urllib.error.HTTPError as e:
+        body = e.read().decode("utf-8", errors="replace")
+        print(f"SendGrid error {e.code}:\n{body}", file=sys.stderr)
+        sys.exit(1)
+    except Exception as e:
+        print(f"Error: {e}", file=sys.stderr)
+        sys.exit(1)
+
+if __name__ == "__main__":
+    main()