Merge pull request #796 from econia-labs/ECO-2086

[ECO-2086] Add last_transaction_timestamp to data_status endpoint

doc/doc-site/docs/off-chain/dss/changelog.md

@@ -18,11 +18,12 @@ Stable DSS builds are tracked on the [`dss-stable`] branch with tags like [`dss-
 1. Merge `main` into `dss-stable`.
 1. Push annotated tag to head of `dss-stable`.
 
-## [v2.4.0-rc.1][dss-v2.4.0-rc.1] (in progress)
+## [v2.4.0-rc.2][dss-v2.4.0-rc.2] (in progress)
 
 ### Added
 
 - Transaction version field inside levels MQTT events ([#792]).
+- Timestamp of last processed transaction in `/data_status` endpoint ([#796]).
 
 ### Fixed
 
@@ -290,6 +291,7 @@ Stable DSS builds are tracked on the [`dss-stable`] branch with tags like [`dss-
 [#788]: https://github.com/econia-labs/econia/pull/788
 [#792]: https://github.com/econia-labs/econia/pull/792
 [#793]: https://github.com/econia-labs/econia/pull/793
+[#796]: https://github.com/econia-labs/econia/pull/796
 [docs site readme]: https://github.com/econia-labs/econia/blob/main/doc/doc-site/README.md
 [dss-v2.1.0-rc.1]: https://github.com/econia-labs/econia/releases/tag/dss-v2.1.0-rc.1
 [dss-v2.2.1-rc.1]: https://github.com/econia-labs/econia/releases/tag/dss-v2.2.1-rc.1

src/rust/dbv2/migrations/2024-08-14-160622_add_last_transaction_timestamp_to_data_status/down.sql

@@ -0,0 +1,23 @@
+-- This file should undo anything in `up.sql`
+DROP VIEW api.data_status;
+
+CREATE VIEW api.data_status AS
+SELECT
+    CURRENT_TIMESTAMP AS current_time,
+    processor_status.last_success_version AS processor_last_txn_version_processed,
+    user_history_last_indexed_txn.txn_version AS aggregator_user_history_last_txn_version_processed,
+    array_agg(ARRAY[resolution, candlesticks_last_indexed_txn.txn_version]) AS aggregator_candlesticks_last_txn_version_processed
+FROM
+    processor_status,
+    aggregator.user_history_last_indexed_txn,
+    aggregator.candlesticks_last_indexed_txn
+WHERE
+    processor_status.processor = 'econia_processor'
+GROUP BY
+    user_history_last_indexed_txn.txn_version,
+    processor_status.last_success_version;
+
+
+GRANT
+SELECT
+  ON api.data_status TO web_anon;

src/rust/dbv2/migrations/2024-08-14-160622_add_last_transaction_timestamp_to_data_status/up.sql

@@ -0,0 +1,25 @@
+-- Your SQL goes here
+DROP VIEW api.data_status;
+
+CREATE VIEW api.data_status AS
+SELECT
+    CURRENT_TIMESTAMP AS current_time,
+    processor_status.last_transaction_timestamp AS processor_last_txn_timestamp_processed,
+    processor_status.last_success_version AS processor_last_txn_version_processed,
+    user_history_last_indexed_txn.txn_version AS aggregator_user_history_last_txn_version_processed,
+    array_agg(ARRAY[resolution, candlesticks_last_indexed_txn.txn_version]) AS aggregator_candlesticks_last_txn_version_processed
+FROM
+    processor_status,
+    aggregator.user_history_last_indexed_txn,
+    aggregator.candlesticks_last_indexed_txn
+WHERE
+    processor_status.processor = 'econia_processor'
+GROUP BY
+    user_history_last_indexed_txn.txn_version,
+    processor_status.last_success_version,
+    processor_status.last_transaction_timestamp;
+
+
+GRANT
+SELECT
+  ON api.data_status TO web_anon;