ChatThreadClient Class

A client to interact with the AzureCommunicationService Chat gateway. Instances of this class is normally retrieved by ChatClient.get_chat_thread_client()

This client provides operations to add participant(s) to chat thread, remove participant from chat thread, send message, delete message, update message, send typing notifications, send and list read receipt

Inheritance
builtins.object
ChatThreadClient

Constructor

ChatThreadClient(endpoint: str, credential: CommunicationTokenCredential, thread_id: str, **kwargs: Any)

Parameters

Name Description
endpoint
Required
str

The endpoint of the Azure Communication resource.

credential
Required

The credentials with which to authenticate. The value contains a User Access Token

thread_id
Required
str

The unique thread id.

Examples

Creating the ChatThreadClient.


   from datetime import datetime
   from azure.communication.chat import (
       ChatClient,
       ChatParticipant,
       CommunicationUserIdentifier,
       CommunicationTokenCredential
   )
   # retrieve `token` using CommunicationIdentityClient.get_token method
   # set `endpoint` to ACS service endpoint
   # create `user` using CommunicationIdentityClient.create_user method for new users;
   # else for existing users set `user` = CommunicationUserIdentifier(some_user_id)
   chat_client = ChatClient(endpoint, CommunicationTokenCredential(token))
   topic = "test topic"
   participants = [ChatParticipant(
       identifier=user,
       display_name='name',
       share_history_time=datetime.utcnow()
   )]
   create_chat_thread_result = chat_client.create_chat_thread(topic, thread_participants=participants)
   chat_thread_client = chat_client.get_chat_thread_client(create_chat_thread_result.chat_thread.id)

Variables

Name Description
thread_id
str

Chat thread id.

Methods

add_participants

Adds thread participants to a thread. If participants already exist, no change occurs.

If all participants are added successfully, then an empty list is returned; otherwise, a list of tuple(chat_thread_participant, chat_error) is returned, of failed participants and its respective error

close
delete_message

Deletes a message.

get_message

Gets a message by id.

get_properties

Gets the properties of the chat thread.

list_messages

Gets a list of messages from a thread.

list_participants

Gets the participants of a thread.

list_read_receipts

Gets read receipts for a thread.

remove_participant

Remove a participant from a thread.

send_message

Sends a message to a thread.

send_read_receipt

Posts a read receipt event to a chat thread, on behalf of a user.

send_typing_notification

Posts a typing event to a thread, on behalf of a user.

update_message

Updates a message.

update_topic

Updates a thread's properties.

add_participants

Adds thread participants to a thread. If participants already exist, no change occurs.

If all participants are added successfully, then an empty list is returned; otherwise, a list of tuple(chat_thread_participant, chat_error) is returned, of failed participants and its respective error

add_participants(thread_participants: List[ChatParticipant], **kwargs: Any) -> List[Tuple[ChatParticipant, ChatError]]

Parameters

Name Description
thread_participants
Required

Thread participants to be added to the thread.

Returns

Type Description

List[Tuple[ChatParticipant, ChatError]]

Exceptions

Type Description

Examples

Adding participants to chat thread.


   from azure.communication.chat import ChatParticipant
   from datetime import datetime

   def decide_to_retry(error):
       """
       Custom logic to decide whether to retry to add or not
       """
       return True

   # set `thread_id` to an existing thread id
   chat_thread_client = chat_client.get_chat_thread_client(thread_id=thread_id)

   # create `user` using CommunicationIdentityClient.create_user method for new users;
   # else for existing users set `user` = CommunicationUserIdentifier(some_user_id)
   new_participant = ChatParticipant(
       identifier=user,
       display_name='name',
       share_history_time=datetime.utcnow())

   # create list containing one or more participants
   thread_participants = [new_participant]
   result = chat_thread_client.add_participants(thread_participants)

   # list of participants which were unsuccessful to be added to chat thread
   retry = [p for p, e in result if decide_to_retry(e)]
   if retry:
       chat_thread_client.add_participants(retry)

close

close() -> None

Exceptions

Type Description

delete_message

Deletes a message.

delete_message(message_id: str, **kwargs: Any) -> None

Parameters

Name Description
message_id
Required
str

Required. The message id.

Returns

Type Description

None

Exceptions

Type Description
<xref:azure.core.exceptions.HttpResponseError>, <xref:ValueError>

Examples

Deleting a message.


   # set `thread_id` to an existing thread id
   chat_thread_client = chat_client.get_chat_thread_client(thread_id=thread_id)

   # set `message_id` to an existing message id
   chat_thread_client.delete_message(message_id)

get_message

Gets a message by id.

get_message(message_id: str, **kwargs: Any) -> ChatMessage

Parameters

Name Description
message_id
Required
str

Required. The message id.

Returns

Type Description

ChatMessage

Exceptions

Type Description
<xref:azure.core.exceptions.HttpResponseError>, <xref:ValueError>

Examples

Retrieving a message by message id.


   # set `thread_id` to an existing thread id
   chat_thread_client = chat_client.get_chat_thread_client(thread_id=thread_id)

   # set `message_id` to an existing message id
   chat_message = chat_thread_client.get_message(message_id)

   print("Message received: ChatMessage: content=", chat_message.content.message, ", id=", chat_message.id)

get_properties

Gets the properties of the chat thread.

get_properties(**kwargs: Any) -> ChatThreadProperties

Returns

Type Description

ChatThreadProperties

Exceptions

Type Description

Examples

Retrieving chat thread properties by chat thread id.


   from azure.communication.chat import ChatClient, CommunicationTokenCredential

   # set `endpoint` to an existing ACS endpoint
   chat_client = ChatClient(endpoint, CommunicationTokenCredential(token))
   chat_thread_client = chat_client.get_chat_thread_client(thread_id)
   chat_thread_properties = chat_thread_client.get_properties()
   print('Expected Thread Id: ', thread_id, ' Actual Value: ', chat_thread_properties.id)

list_messages

Gets a list of messages from a thread.

list_messages(**kwargs: Any) -> ItemPaged[ChatMessage]

Keyword-Only Parameters

Name Description
results_per_page
int

The maximum number of messages to be returned per page.

start_time

The earliest point in time to get messages up to. The timestamp should be in RFC3339 format: yyyy-MM-ddTHH:mm:ssZ.

Returns

Type Description

An iterator like instance of ChatMessage

Exceptions

Type Description
<xref:azure.core.exceptions.HttpResponseError>, <xref:ValueError>

Examples

Listing messages of a chat thread.


   from datetime import datetime, timedelta

   # set `thread_id` to an existing thread id
   chat_thread_client = chat_client.get_chat_thread_client(thread_id=thread_id)

   start_time = datetime.utcnow() - timedelta(days=1)
   chat_messages = chat_thread_client.list_messages(results_per_page=1, start_time=start_time)

   print("list_messages succeeded with results_per_page is 1, and start time is yesterday UTC")
   for chat_message_page in chat_messages.by_page():
       for chat_message in chat_message_page:
           print("ChatMessage: message=", chat_message.content.message)
           for attachment in chat_message.content.attachments:
               if attachment.type == "image":
                   print("image attachment: ", attachment.name, " with ID: ", attachment.id, "received.")
                   # render `attachment.preview_url` as the thumbnail
                   # render `attachment.url` as the full image
               elif attachment.type == "file":
                   print("file attachment: ", attachment.name, " with ID: ", attachment.id, "received.")
                   # render a button that will navigate user to the URL provided in `attachment.preview_url`


list_participants

Gets the participants of a thread.

list_participants(**kwargs: Any) -> ItemPaged[ChatParticipant]

Keyword-Only Parameters

Name Description
results_per_page
int

The maximum number of participants to be returned per page.

skip
int

Skips participants up to a specified position in response.

Returns

Type Description

An iterator like instance of ChatParticipant

Exceptions

Type Description
<xref:azure.core.exceptions.HttpResponseError>, <xref:ValueError>

Examples

Listing participants of chat thread.



   # set `thread_id` to an existing thread id
   chat_thread_client = chat_client.get_chat_thread_client(thread_id=thread_id)

   chat_thread_participants = chat_thread_client.list_participants()

   for chat_thread_participant_page in chat_thread_participants.by_page():
       for chat_thread_participant in chat_thread_participant_page:
           print("ChatParticipant: ", chat_thread_participant)

list_read_receipts

Gets read receipts for a thread.

list_read_receipts(**kwargs: Any) -> ItemPaged[ChatMessageReadReceipt]

Keyword-Only Parameters

Name Description
results_per_page
int

The maximum number of chat message read receipts to be returned per page.

skip
int

Skips chat message read receipts up to a specified position in response.

Returns

Type Description

An iterator like instance of ChatMessageReadReceipt

Exceptions

Type Description
<xref:azure.core.exceptions.HttpResponseError>, <xref:ValueError>

Examples

Listing read receipts.


   # set `thread_id` to an existing thread id
   chat_thread_client = chat_client.get_chat_thread_client(thread_id=thread_id)

   read_receipts = chat_thread_client.list_read_receipts()

   for read_receipt_page in read_receipts.by_page():
       for read_receipt in read_receipt_page:
           print(read_receipt)

remove_participant

Remove a participant from a thread.

remove_participant(identifier: CommunicationIdentifier, **kwargs: Any) -> None

Parameters

Name Description
identifier
Required

Required. Identifier of the thread participant to remove from the thread.

Returns

Type Description

None

Exceptions

Type Description
<xref:azure.core.exceptions.HttpResponseError>, <xref:ValueError>

Examples

Removing participant from chat thread.


   # Option 1 : Iterate through all participants, find and delete Fred Flinstone
   chat_thread_participants = chat_thread_client.list_participants()

   for chat_thread_participant_page in chat_thread_participants.by_page():
       for chat_thread_participant in chat_thread_participant_page:
           print("ChatParticipant: ", chat_thread_participant)
           if chat_thread_participant.identifier.properties['id'] == user1.properties['id']:
               print("Found Fred!")
               chat_thread_client.remove_participant(chat_thread_participant.identifier)
               print("Fred has been removed from the thread...")
               break

   # Option 2: Directly remove Wilma Flinstone
   unique_identifier = user2.properties['id'] # in real scenario the identifier would need to be retrieved from elsewhere
   chat_thread_client.remove_participant(CommunicationUserIdentifier(unique_identifier))
   print("Wilma has been removed from the thread...")

send_message

Sends a message to a thread.

send_message(content: str, **kwargs: Any) -> SendChatMessageResult

Parameters

Name Description
content
Required
str

Required. Chat message content.

Keyword-Only Parameters

Name Description
chat_message_type

The chat message type. Possible values include: "text", "html". Default: ChatMessageType.TEXT

sender_display_name
str

The display name of the message sender. This property is used to populate sender name for push notifications.

metadata

Message metadata.

Returns

Type Description

SendChatMessageResult

Exceptions

Type Description
<xref:azure.core.exceptions.HttpResponseError>, <xref:ValueError>

Examples

Sending a message.


   from azure.communication.chat import ChatMessageType

   # set `thread_id` to an existing thread id
   chat_thread_client = chat_client.get_chat_thread_client(thread_id=thread_id)

   # Scenario 1: Send message without specifying chat_message_type
   send_message_result = chat_thread_client.send_message(
       "Hello! My name is Fred Flinstone",
       sender_display_name="Fred Flinstone")
   send_message_result_id = send_message_result.id

   # Scenario 2: Send message specifying chat_message_type
   send_message_result_w_type = chat_thread_client.send_message(
       "Hello! My name is Wilma Flinstone",
       sender_display_name="Wilma Flinstone",
       chat_message_type=ChatMessageType.TEXT) # equivalent to setting chat_message_type='text'
   send_message_result_w_type_id = send_message_result_w_type.id
   # Verify message content
   print("First Message:", chat_thread_client.get_message(send_message_result_id).content.message)
   print("Second Message:", chat_thread_client.get_message(send_message_result_w_type_id).content.message)

send_read_receipt

Posts a read receipt event to a chat thread, on behalf of a user.

send_read_receipt(message_id: str, **kwargs: Any) -> None

Parameters

Name Description
message_id
Required
str

Required. Id of the latest message read by current user.

Returns

Type Description

None

Exceptions

Type Description
<xref:azure.core.exceptions.HttpResponseError>, <xref:ValueError>

Examples

Sending read receipt of a chat message.


   # set `thread_id` to an existing thread id
   chat_thread_client = chat_client.get_chat_thread_client(thread_id=thread_id)

   # set `message_id` to an existing message id
   chat_thread_client.send_read_receipt(message_id)

send_typing_notification

Posts a typing event to a thread, on behalf of a user.

send_typing_notification(**kwargs: Any) -> None

Keyword-Only Parameters

Name Description
sender_display_name
str

The display name of the typing notification sender. This property is used to populate sender name for push notifications.

Returns

Type Description

None

Exceptions

Type Description
<xref:azure.core.exceptions.HttpResponseError>, <xref:ValueError>

Examples

Send typing notification.


   # set `thread_id` to an existing thread id
   chat_thread_client = chat_client.get_chat_thread_client(thread_id=thread_id)

   chat_thread_client.send_typing_notification()

update_message

Updates a message.

update_message(message_id: str, content: str | None = None, **kwargs: Any) -> None

Parameters

Name Description
message_id
Required
str

Required. The message id.

content
Required
str

Chat message content.

Keyword-Only Parameters

Name Description
metadata

Message metadata.

Returns

Type Description

None

Exceptions

Type Description
<xref:azure.core.exceptions.HttpResponseError>, <xref:ValueError>

Examples

Updating an already sent message.


   # set `thread_id` to an existing thread id
   chat_thread_client = chat_client.get_chat_thread_client(thread_id=thread_id)

   # set `message_id` to an existing message id
   previous_content = chat_thread_client.get_message(message_id).content.message
   content = "updated content"
   chat_thread_client.update_message(message_id, content=content)

   current_content = chat_thread_client.get_message(message_id).content.message

   print("Chat Message Updated: Previous value: ", previous_content, ", Current value: ", current_content)

update_topic

Updates a thread's properties.

update_topic(topic: str | None = None, **kwargs: Any) -> None

Parameters

Name Description
topic
Required
str

Thread topic. If topic is not specified, the update will succeed but chat thread properties will not be changed.

Returns

Type Description

None

Exceptions

Type Description
<xref:azure.core.exceptions.HttpResponseError>, <xref:ValueError>

Examples

Updating chat thread.


   # set `thread_id` to an existing thread id
   chat_thread_client = chat_client.get_chat_thread_client(thread_id=thread_id)
   chat_thread_properties = chat_thread_client.get_properties()
   previous_topic = chat_thread_properties.topic

   topic = "updated thread topic"
   chat_thread_client.update_topic(topic=topic)

   chat_thread_properties = chat_thread_client.get_properties()
   updated_topic = chat_thread_properties.topic
   print("Chat Thread Topic Update: Previous value: ", previous_topic, ", Current value: ", updated_topic)

Attributes

thread_id

Gets the thread id from the client.

Returns

Type Description
str