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Web Services application which scraps NHS Choices website and provide smart Search Engine against it

Project details

This is a Scala based project with Spring Boot and ElasticSearch underneath. To view the API please open http://localhost:19000/swagger-ui.html and check nhs-choices-api-endpoint. You can use this UI to operate with this scrapper and search engine. It has 3 major methods:

  • GET /nhs-conditions/cache - will a) return cache from memory stored in APP b) if there is no cache store in APP it will load cache from file nhs-choices.json, will update APP memory, will update ElasticSearch Index c) if there is no file it will scrap the website, update file, update APP memory, will update ElasticSearch Index

  • POST /nhs-conditions/cache/reload - it will scrap the website, update file, update APP memory, will update ElasticSearch Index

  • GET /nhs-conditions?q=<query> - will perform search against ElasticSearch Index

Size of scrapped website in json approximately = 10.8mb Search queries almost always provide best match, further ElasticSearch Index configuration would provide better results

Project Build Details:

To build application write sbt oneJar it will create a runnable jar file which you can run via java -jar nhs-choices_2.11-1.0-one-jar.jar

Implementation Details:

Frameworks\Software used: SBT + Scala + Spring Boot + ElasticSearch + ScalaScrapper + Jackson

There is a test which performs complete scrapping process of few pages and return result (emulates GET /nhs-conditions/cache request)