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An example of chat, based on Apache Cassandra with pagination\n* Pagination, based on [spring-cassandra-pagination-example](https://github.com/jusexton/spring-cassandra-pagination-example)\n* Creating keyspace from .cql file in `docker-entrypoint-initdb.d`, what's provided by bitnami image\n* Liquibase migrations\n\n## Links\n* https://github.com/jusexton/spring-cassandra-pagination-example\n* https://cassandra.apache.org/_/quickstart.html\n* https://cassandra.apache.org/doc/latest/cassandra/architecture/dynamo.html\n* https://stackoverflow.com/questions/60466271/cassandra-replication-in-networktopologystrategy/60476099#60476099\n* https://cassandra.apache.org/doc/latest/cassandra/developing/data-modeling/data-modeling_logical.html\n* https://stackoverflow.com/questions/70234153/spring-data-cassandra-not-able-to-perform-paginaton-after-passing-the-cassandra/70235061#70235061\n\n## Start\n```bash\ndocker compose up -d\ndocker logs -f cassandra-example-cassandra-1\n```\nWait until you see in Cassandra logs (`Startup complete`, `Creating replication`, ...), it takes about of 1 minute. \n\nThen start `Launcher` from your IDE.\n\nThen you can\n\n## Generate messages\n```bash\ncurl -Ss -X PUT 'http://localhost:8080/api/message/generate?chatCount=10\u0026messageCount=1000000\u0026pinned=false' | jq\ncurl -Ss -X PUT 'http://localhost:8080/api/message/generate?messageCount=10\u0026pinned=true' | jq\ncurl -Ss -X PUT 'http://localhost:8080/api/message/generate2?chatId=11\u0026messageCount=10000\u0026pinned=false' | jq\n```\n\n## Perform pagination\n```bash\ncurl -Ss 'http://localhost:8080/api/message/chat/1' | jq\ncurl -Ss 'http://localhost:8080/api/message/chat/1?limit=10\u0026pagingState=000A000800000000000F4236F07FFFFFF5F07FFFFFF5' | jq\n```\n\n## Try validation\n```bash\ncurl -Ss 'http://localhost:8080/api/message/chat/1?limit=10000' | jq\n```\n\n## See keyspaces\n```bash\ndocker exec -it cassandra-example-cassandra-1 bash\nnodetool status\ncqlsh -u cassandra -p cassandra\nDESC KEYSPACES;\n```\n\n## Query pinned messages\n```\ndocker exec -it cassandra-example-cassandra-1 cqlsh -u cassandra -p cassandra\nselect * from store.message where chat_id = 1 and pinned = true;\n```\n\n## Search (after a bout of 1 minute, when the index will be built, wait until Cassandra stop write `Flushed index segment` to log)\n```\nselect * from store.message where chat_id = 1 and body like '%hello8888%' limit 10;\nselect * from store.message where chat_id = 1 and body like '%hello%' limit 10;\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnkonev%2Fcassandra-example","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fnkonev%2Fcassandra-example","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnkonev%2Fcassandra-example/lists"}