Spring boot cache

README.md

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+### Example of Local Cache | In-Memory Cache
+#### Caching Process:
+```
+SpringBootCache application => A
+SpringBootApp application => B
+```
+
+- **A** calls **B**.
+- **B** is configured to sleep for 5 seconds.
+- **A** gets a response from **B** in 5+ seconds.
+  <img width="1305" alt="image" src="https://github.com/rahulvaish/SpringBoot-Java/assets/689226/eb8d34a3-8f26-460d-9a80-adc60317a3d5">
+- **A** caches the data coming from **B**.
+- On hitting **A** again, the response takes < 10 ms as the data is coming from the cache and not actually from **B**.
+  <img width="1314" alt="image" src="https://github.com/rahulvaish/SpringBoot-Java/assets/689226/1e2bef25-d158-412e-a817-3867f188842e">
+- We have also configured a @Scheduler in **A** to keep cleaning the cache after every 20 seconds.
+- Therefore, post 20 seconds if we hit **A** again, it gets a response from the **B** in 5+ seconds.
+
+#### NOTE:
+- During the period when the cache is holding the data, if **B** is turned off, still **A** gets a response in < 10 ms, as data is being fetched from the cache, and not from **B**.
+- Once the cache is cleared, **A** results in a 500 Error - As no data is found in the cache, and **B** is off!
+
+

SpringBootApp/.gitignore

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+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/

SpringBootApp/.mvn/wrapper/maven-wrapper.properties

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+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.4/apache-maven-3.9.4-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar