Update send_message data and allow changing certain things through msg.extras (#112) (#113)

* Update send_message data and allow changing certain things through msg.extras (#112)

* Updated CHANGELOG for #112

---------

Co-authored-by: Martin Flygenring <maf@one.com>

Author: zaughon

CHANGELOG.md

@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## [0.4.0] Unreleased
 ### Added
 ### Changed
+ - Update send_message data and allow changing certain things through msg.extras (#112)"
 ### Fixed
 
 ## [0.3.1] 2025-04-02

src/slackv3/slackv3.py

@@ -738,9 +738,10 @@ def send_message(self, msg) -> Message:
                 data = {
                     "channel": to_channel_id,
                     "text": part,
-                    "unfurl_media": "true",
-                    "link_names": "1",
-                    "as_user": "true",
+                    "unfurl_links": msg.extras.get('unfurl_links', True),
+                    "unfurl_media": msg.extras.get('unfurl_media', True),
+                    "link_names": msg.extras.get('link_names', True),
+                    "as_user": True,
                 }
 
                 if index == len(parts) - 1:
@@ -780,9 +781,7 @@ def send_message(self, msg) -> Message:
                     data = {
                         "channel": to_channel_id,
                         "ts": timestamp,
-                        "unfurl_media": "true",
-                        "link_names": "1",
-                        "as_user": "true",
+                        "as_user": True,
                     }
                     self.slack_web.chat_delete(**data)