Stream listening cache updater

Patent metadata

Field	Value
Publication number	US-11916787-B2
Application number	US-202117533618-A
Country	US
Kind code	B2
Filing date	Nov 23, 2021
Priority date	Nov 23, 2021
Publication date	Feb 27, 2024
Grant date	Feb 27, 2024

Abstract

A system, process, and computer-readable medium for updating an application cache using a stream listening service is described. A stream listening service may monitor one or more data streams for content relating to a user. The stream listening service may forward the content along with time-to-live values to an application cache. A user may use an application to obtain information regarding the user's account, where the application obtains information from a data store and/or cached information from the application cache. The stream listening service, by forwarding current account information, obtained from listening to one or more streams, to the application cache, reduces traffic at the data store by providing current information from the data stream to the application cache.

First claim

What is claimed is:

1. A computer-implemented method comprising:
receiving, by an application cache and from an application on a remote user device, a request for first information associated with a user account associated with a user of the remote user device;
determining, based on the request, whether the first information is stored in the application cache;
retrieving, from a data store and based on a determination that the first information is not stored in the application cache, the first information associated with the user account;
storing the first information in the application cache, wherein the application cache assigns a time-to-live (TTL) value to the first information;
ending the first information to the application of the remote user device;
monitoring, via a listening service, a data stream for information relating to the user account;
detecting, in the data stream, second information associated with the user account, wherein the second information comprises a change to the first information;
storing, based on the detecting the second information, the second information in the application cache, wherein the second information overwrites the first information and refreshes the TTL value;
receiving, by the application cache and from the application, a request for the second information associated with the user,
sending, from the application cache to the application, the second information; and
deleting, at the expiration of the refreshed TTL value, the second information from the application cache.

2. The computer-implemented method of claim 1 , further comprising:
detecting, by the listening service, third information, in the data stream, associated with the user, wherein the third information comprises information not currently stored in the application cache; and
storing, based on the detecting the third information, the third information in the application cache, wherein the third information receives a second TTL value,
wherein the receiving the request for the second information comprises receiving a request for the second information and the third information, and
wherein sending the second information comprises sending, to the application, the second information and the third information.

3. The computer-implemented method of claim 1 , further comprising:
receiving, from the application and by the application cache, a request for third information associated with the user;
determining the application cache does not currently store the third information;
receiving, from the data store, the third information and a second TTL value;
storing, in the application cache, the third information and the second TTL value; and
sending, to the application, the third information.

4. A computer-implemented method comprising:
receiving, by a server, a data stream with information;
detecting, based on information in the data stream, first information and second information associated with a user account;
determining, by the server and from the first information one or more first time-to-live (TTL) values associated with the first information;
determining, by the server and from the second information, one or more second TTL values associated with the second information;
storing in an application cache associated with the user account, the first information, the one or more first TTL values, the second information, and the one or more second TTL values;
deleting, based on an expiration of one or more of the first TTL values, the first information from the application cache;
receiving, from an application associated with the user account, a request for the first information and the second information;
determining, by the application cache, whether each of the first information and the second information is currently stored in the application cache;
receiving, based on a determination that the application cache does not currently store the first information, the first information from a data store; and
sending, to the application and based on a determination that the second information is currently stored in the application cache and based on receiving the first information from the data store, the first information received from the data store and the second information from the application cache.

5. The computer-implemented method of claim 4 , further comprising:
sending, to the data store and based on a determination that the first information of is not currently stored in the application cache, a request for the first information;
determining, based on the receiving the first information received from the data store, a third TTL value for the first information received from the data store; and
storing, in the application cache, the first information and the third TTL value.

6. The computer-implemented method of claim 5 ,
wherein the one or more first TTL values and the third TTL value are the same.

7. The computer-implemented method of claim 5 ,
wherein the one or more first TTL values and the third TTL value are different.

8. The computer-implemented method of claim 4 , further comprising:
determining, by the server, whether the data stream includes third information associated with the user account;
determining, by the application cache, whether a fourth information, associated with the user account, is currently stored in the application cache;
updating, based on a determination that the data stream includes the third information and based on a determination that the application cache includes the fourth information, the fourth information with the third information; and
storing, based on the updated fourth information, an updated TTL value associated the fourth information.

9. The computer-implemented method of claim 8 ,
wherein the third information is associated with a change in an account balance of the user account,
wherein the fourth information comprises a current account balance of the user account, and
wherein updating, based on the third information, the current account balance of the fourth information results in an updated account balance.

10. The computer-implemented method of claim 4 , wherein the determining the one or more first TTL values comprises:
determining, from a table and for the first information, the one or more first TTL values associated with the first information; and
determining, from the table and for the second information, the one or more second TTL values associated with the second information.

11. The computer-implemented method of claim 4 , further comprising:
determining, by the server, whether the data stream includes third information;
based on a determination the data stream includes the third information, sending, to the data store, a request for fourth information, associated with the user account;
receiving, from the data store, the fourth information;
determining, based on the fourth information, a third TTL value for the fourth information received from the data store;
storing, in the application cache, the fourth information and the third TTL value;
receiving, from the application, a request for the fourth information; and
sending, from the application cache and to the application, the fourth information.

12. The computer-implemented method of claim 11 , wherein the third information indicates:
a transaction associated with the user account has been declined,
a change in behavior of the user account, or
a change in an account balance of an account associated with the user account.

13. The computer-implemented method of claim 11 , wherein the third information comprises a most recent transaction associated with the us

Assignees

• Capital One Services Llc

Inventors

• Gupta Prateek
• Wu Samuel
• Wyman Zachary
• Ordonez Ramiro

Classifications

• H04L45/742 Primary

  Route cache; Operation thereof · CPC title

• H04L47/286

  Time to live · CPC title

• H04L49/206

  Real Time traffic · CPC title