# Canister Methods

-   [heartbeat](./heartbeat.md)
-   [http_request](./http_request.md)
-   [http_request_update](./http_request_update.md)
-   [init](./init.md)
-   [inspect message](./inspect_message.md)
-   [post upgrade](./post_upgrade.md)
-   [pre upgrade](./pre_upgrade.md)
-   [query](./query.md)
-   [update](./update.md)
