This article is a part of Vector Search using Spring AI Elastic Search and Apache Nifi 2 Now that we have data converted into json, we will store this in elastic search. Use below docker-compose to start kibana and elastic search 8. 1name: es-kibana 2services: 3 elasticsearch: 4 image: …

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Application We will create a simple application where we will: Ingest data from csv file and apply vector embeddings using custom python processor Store in ElasticSearch View Search Results

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While Apache Nifi is an amazing tool. It has introduced how to write processor in python directly and use it as is. If you follow the documentation, I hit a roadblock of how to make this imports work. 1from nifiapi.flowfiletransform import FlowFileTransform, FlowFileTransformResult I am not a master python developer …

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Recently I came across a scenario where our managed redis instance on azure was alerting high cpu usage during peek business hours. It is a single redis instance(not sure of more details of hosting as it is with infra team). While internally there are hundreds of service using this redis instance for caching, I was not …

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Introduction While developing spring-boot apps I have faced challenge of handling exception from service methods. Any exception that are propogated from the Controllers are handled by @ControllerAdvice. AFAIK there is nothing called as @ServiceAdvice to handle any exception being thrown from service layer. Spring tool …

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Complatable Future with RestTemplate In the previous article we learned how to use RestTemplate to call apis in sequence and compose their result and write to the client. We will try to optimize this now by makeing these 2 request work in parallel and return this response. We will same UserProfileSupplier & …

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Use case RestTemplate is a synchronous web-client to perform http/s requests from spring applications. Configuration We first define the bean to be injected in our services using following config: 1@Configuration 2public class Config { 3 4 @Bean 5 public RestTemplate restTemplate() { 6 return new RestTemplate(); 7 } 8 …

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Logging ndjson to a file We will configure spring-boot application to redirect logs to a file in ndjson format. See more information on ndjson Dependencies Add following dependencies to the pom.xml 1 <dependency> 2 <groupId>ch.qos.logback.contrib</groupId> 3 <artifactId>logback-json-classic</artifactId> 4 …

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Web app background After writting backend application which no face to showcase or few personal projects which i started but never completed because of lack of ui(infact i do not like html & css at all). Have learned it before time caused me to show less interest during actual projects. But everyday a new ui and js …

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Among other numerous jwt advantages, I prefer one more crucial jwt advantage of generating and validating it before hand and avoid the need to store it in database. Storing it in database also can be helpful but that is later topic of discussion. We store credentials of user in database using Bcrypt password hashing …

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