Retention model management for chat conversations

1. A method comprising:

receiving, from a device of a first user, input indicative of a change from a first retention model to a second retention model selected by the first user, the first retention model specifying a first retention duration for messages exchanged between the first and a second user as part of an electronic chat conversation, the second retention model specifying a second retention duration for messages exchanged between the first and the second user as part of the electronic chat conversation;

causing display, on the device, of a message feed comprising a set of indicators corresponding to a plurality of chat conversations, an indicator in the set of indicators corresponding to the electronic chat conversation between the first user and the second user;

in response to receiving input indicative of a selection of the indicator by the first user, causing display, on the device, of a conversation view comprising a presentation of the messages exchanged between the first and the second users as part of the electronic chat conversation; and

causing display, within the conversation view, of a notification of the change from the first retention model to the second retention model selected by the first user, the notification indicating the second retention duration of the second retention model, the second retention duration being a zero-value retention duration.

2. The method of claim 1 , further comprising:

upon receiving a message, causing display, on the device of the first user, of the message in the conversation view; and

based on receiving an indication that the message has been read by the first user, removing the display of the message from the conversation view in accordance with the second retention model selected by the first user.

3. The method of claim 1 , further comprising causing display, within the conversation view, of an indicator of an amount time remaining for a receiving user to access a message within the electronic chat conversation prior to receiving the input indicative of the change from the first retention model to the second retention model.

4. The method of claim 1 , wherein:

the first retention model specifies a

retention duration that is non-zero.

5. The method of claim 1 , further comprising associating the second retention model with the electronic chat conversation such that subsequent messages exchanged as part of the electronic chat conversation are retained for the second retention duration specified by the second retention model.

6. The method of claim 5 , wherein the associating of the second retention model with the electronic chat conversation comprises updating a data structure that represents the electronic chat conversation.

7. The method of claim 1 , further comprising:

storing, in a computer-readable memory, a message received, from the second user, as part of the chat conversation between the first and second user, the storing of the message including configuring a retention duration attribute for the message in accordance with the second retention duration specified by the second retention model selected by the first user; and

erasing, from the computer-readable memory, the message in accordance with the retention duration attribute associated with the electronic chat conversation.

8. The method of claim 7 , wherein the erasing of the message of the electronic chat conversation includes determining an amount of time corresponding to the second retention duration specified by the retention duration attribute has elapsed since receiving the message.

9. The method of claim 1 , wherein:

the device is a first device; and

the method further comprises causing display, on a second client device, of the notification of the change from the first retention model to the second retention model selected by the first user.

10. The method of claim 1 , wherein:

the indicator is a first indicator;

the electronic chat conversation is a first electronic chat conversation; and

a second indicator in the set of indicators corresponds to a second electronic chat conversation between the first user and a third user.

11. The method of claim 1 , wherein the message feed further comprises a presentation of the notification in conjunction with the indicator.

12. A system comprising:

one or more processors of a server machine;

at least one computer-readable memory storing instructions that, when executed by the one or more processors, cause the machine to perform operations comprising:

receiving, from a device of a first user, input indicative of a change from a first retention model to a second retention model selected by the first user, the first retention model specifying a first retention duration for messages exchanged between the first and a second user as part of an electronic chat conversation, the second retention model specifying a second retention duration for messages exchanged between the first and the second user as part of the electronic chat conversation;

causing display, on the device, of a message feed comprising a set of indicators corresponding to a plurality of chat conversations, an indicator in the set of indicators corresponding to the electronic chat conversation between the first user and the second user;

in response to receiving input indicative of a selection of the indicator by the first user, causing display, on the device, of a conversation view comprising a presentation of the messages exchanged between the first and the second users as part of the electronic chat conversation; and

causing display, within the conversation view, of a notification of the change from the first retention model to the second retention model selected by the first user, the notification indicating the second retention duration of the second retention model, the second retention duration being a zero-value retention duration.

13. The system of claim 12 , wherein the operations further comprise:

upon receiving a message, causing display, on the device of the first user, of the message in the conversation view; and

based on receiving an indication that the message has been read by the first user, removing the display of the message from the conversation view in accordance with the second retention model selected by the first user.

14. The system of claim 13 , wherein the operations further comprise—causing display, within the conversation view, of an indicator of an amount time remaining for a receiving user to access a message within the electronic chat conversation prior to receiving the input indicative of the change from the first retention model to the second retention model.

15. The system of claim 12 , wherein:

the first retention model specifies a

retention duration that is non-zero.

16. The system of claim 12 , wherein the operations further comprise associating the second retention model with the electronic chat conversation such that subsequent messages exchanged as part of the electronic chat conversation are retained for the second retention duration specified by the second retention model.

17. The system of claim 16 , wherein the associating of the second retention model with the electronic chat conversation comprises updating a data structure that represents the electronic chat conversation.

18. The system of claim 12 , wherein the operations further comprise:

storing, in a computer-readable memory, a message received, from the second user, as part of the chat conversation between the first and second user, the storing of the message including configuring a retention duration attribute for the message in accordance with an amount of time specified by the second retention model selected by the first user; and

erasing, from the computer-readable memory, the message in accordance with the retention duration attribute associated with the electronic chat conversation.

19. The system of claim 18 , wherein the erasing of the message of the electronic chat conversation includes determining an amount of time corresponding to the second retention duration specified by the retention duration attribute has elapsed since receiving the message.

20. A non-transitory computer-readable medium storing instructions that, when executed by a computer system, cause the computer system to perform operations comprising:

receiving, from a device of a first user, input indicative of a change from a first retention model to a second retention model selected by the first user, the first retention model specifying a first retention duration for messages exchanged between the first and a second user as part of an electronic chat conversation, the second retention model specifying a second retention duration for messages exchanged between the first and the second user as part of the electronic chat conversation;

causing display, on the device, of a message feed comprising a set of indicators corresponding to a plurality of chat conversations, an indicator in the set of indicators corresponding to the electronic chat conversation between the first user and the second user;

in response to receiving input indicative of a selection of the indicator by the first user, causing display, on the device, of a conversation view comprising a presentation of the messages exchanged between the first and the second users as part of the electronic chat conversation; and

causing display, within the conversation view, of a notification of the change from the first retention model to the second retention model selected by the first user, the notification indicating the second retention duration of the second retention model, the second retention duration being a zero-value retention duration.