preparation:
https://www.apache.org/dyn/closer.cgi?path=/kafka/0.10.1.0/kafka_2.11-0.10.1.0.tgz./kafka-launch.sh from folder with kafka extracted./deploy-scripts/cassandra-launch.shdocker exec -ti deployscripts_cassandra-1_1 cqlsh and execute all cql files one-by-one from api/src/main/resources/cql
provide meaningful response for client if task missed too much time
separate kafka consumer and thread pool
make sure that system is consistent (when entity not found, message lost?, etc)
refresh at midnight
make api check more async-reactive-way
implements billing plans for users
and auth as well
when no result is ready - return 404 instead of 200 ok
400 when url in invalid
React
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