Changelog fragment

Author: Matthias

changelogs/fragments/slack.yml

@@ -0,0 +1,2 @@
+minor_changes:
+  - Slack upload file - feature added support for uploading files to Slack (https://github.com/ansible-collections/community.general/pull/9472).

plugins/modules/slack.py

@@ -148,7 +148,8 @@
     type: dict
     description:
       - Specify details to upload a file to Slack. The file can include metadata such as an initial comment, alt text, snipped and title.
-      - See Slack's file upload API for details at U(https://api.slack.com/methods/files.getUploadURLExternal) and U(https://api.slack.com/methods/files.completeUploadExternal).
+      - See Slack's file upload API for details at U(https://api.slack.com/methods/files.getUploadURLExternal).
+      - See Slack's file upload API for details at U(https://api.slack.com/methods/files.completeUploadExternal).
     suboptions:
       path:
         type: str
@@ -171,6 +172,10 @@
         type: str
         description:
           - Optional title for the uploaded file.
+      thread_ts:
+        type: str
+        description:
+          - Optional timestamp of parent message to thread this message, see U(https://api.slack.com/docs/message-threading).
 """
 
 EXAMPLES = r"""
@@ -293,6 +298,7 @@
       alt_text: ''
       snippet_type: ''
       title: ''
+      thread_ts: ''
 """
 
 import re
@@ -476,7 +482,7 @@ def do_notify_slack(module, domain, token, payload):
 
 def get_channel_id(module, token, channel_name):
     url = SLACK_CONVERSATIONS_LIST_WEBAPI
-    headers = {"Authorization": f"Bearer {token}"}
+    headers = {"Authorization": "Bearer " + token}
     params = {
         "types": "public_channel,private_channel,mpim,im",
         "limit": 1000,
@@ -654,7 +660,7 @@ def main():
                 initial_comment=dict(type="str"),
                 thread_ts=dict(type="str"),
                 title=dict(type="str")
-              )
+                )
             ),
         ),
         supports_check_mode=True,