java-tutorials/spring-boot-modules/spring-boot-libraries/README.md

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## Spring Boot Libraries
This module contains articles about various Spring Boot libraries
### The Course
The "REST With Spring" Classes: http://bit.ly/restwithspring
### Relevant Articles:
- [Guide to ShedLock with Spring](https://www.baeldung.com/shedlock-spring)
- [A Guide to the Problem Spring Web Library](https://www.baeldung.com/problem-spring-web)
- [Generating Barcodes and QR Codes in Java](https://www.baeldung.com/java-generating-barcodes-qr-codes)
- [Rate Limiting a Spring API Using Bucket4j](https://www.baeldung.com/spring-bucket4j)
- [Spring Boot and Caffeine Cache](https://www.baeldung.com/spring-boot-caffeine-cache)
- [Spring Boot and Togglz Aspect](https://www.baeldung.com/spring-togglz)
- [Getting Started with GraphQL and Spring Boot](https://www.baeldung.com/spring-graphql)
- [An Introduction to Kong](https://www.baeldung.com/kong)
### GraphQL sample queries
Query
```shell script
curl \
--request POST 'localhost:8081/graphql' \
--header 'Content-Type: application/json' \
--data-raw '{"query":"query {\n recentPosts(count: 2, offset: 0) {\n id\n title\n author {\n id\n posts {\n id\n }\n }\n }\n}"}'
```
Mutation
```shell script
curl \
--request POST 'localhost:8081/graphql' \
--header 'Content-Type: application/json' \
--data-raw '{"query":"mutation {\n writePost(title: \"New Title\", author: \"Author2\", text: \"New Text\") {\n id\n category\n author {\n id\n name\n }\n }\n}"}'
```