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e32f5a1fb1
1. Haskel library `pg-client-hs` has been updated to expose a function that helps listen to `postgres` notifications over a `channel` in this [PR](https://github.com/hasura/pg-client-hs/pull/5) 2. The server records an event in a table `hdb_catalog.hdb_cache_update_event` whenever any `/v1/query` (that changes metadata) is requested. A trigger notifies a `cache update` event via `hasura_cache_update` channel 3. The server runs two concurrent threads namely `listener` and `processor`. The `listener` thread listens to events on `hasura_cache_update` channel and pushed into a `Queue`. The `processor` thread fetches events from that `Queue` and processes it. Thus server rebuilds schema cache from database and updates.
11 lines
278 B
INI
11 lines
278 B
INI
[databases]
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hs_hge_test = host=localhost port=5432 dbname=hs_hge_test user=gql_test
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[pgbouncer]
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listen_port = 6543
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listen_addr = 127.0.0.1
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logfile = pgbouncer/pgbouncer.log
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pidfile = pgbouncer/pgbouncer.pid
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auth_type = md5
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auth_file = pgbouncer/users.txt
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admin_users = postgres |