Bootstrap the external API

.gitignore

@@ -1,5 +1,93 @@
-# Created by https://www.toptal.com/developers/gitignore/api/windows,macos,linux
-# Edit at https://www.toptal.com/developers/gitignore?templates=windows,macos,linux
+# Created by https://www.toptal.com/developers/gitignore/api/windows,macos,linux,visualstudiocode,intellij+all
+# Edit at https://www.toptal.com/developers/gitignore?templates=windows,macos,linux,visualstudiocode,intellij+all
+
+### Intellij+all ###
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# AWS User-specific
+.idea/**/aws.xml
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/artifacts
+# .idea/compiler.xml
+# .idea/jarRepositories.xml
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# SonarLint plugin
+.idea/sonarlint/
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+### Intellij+all Patch ###
+# Ignore everything but code style settings and run configurations
+# that are supposed to be shared within teams.
+
+.idea/*
+
+!.idea/codeStyles
+!.idea/runConfigurations
 
 ### Linux ###
 *~
@@ -49,6 +137,25 @@ Temporary Items
 # iCloud generated files
 *.icloud
 
+### VisualStudioCode ###
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+!.vscode/*.code-snippets
+
+# Local History for Visual Studio Code
+.history/
+
+# Built Visual Studio Code Extensions
+*.vsix
+
+### VisualStudioCode Patch ###
+# Ignore all local history of files
+.history
+.ionide
+
 ### Windows ###
 # Windows thumbnail cache files
 Thumbs.db
@@ -75,4 +182,4 @@ $RECYCLE.BIN/
 # Windows shortcuts
 *.lnk
 
-# End of https://www.toptal.com/developers/gitignore/api/windows,macos,linux
+# End of https://www.toptal.com/developers/gitignore/api/windows,macos,linux,visualstudiocode,intellij+all

backend/api_gateway/.gitignore

@@ -0,0 +1,145 @@
+# Created by https://www.toptal.com/developers/gitignore/api/gradle,intellij+all,java
+# Edit at https://www.toptal.com/developers/gitignore?templates=gradle,intellij+all,java
+
+### Intellij+all ###
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# AWS User-specific
+.idea/**/aws.xml
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/artifacts
+# .idea/compiler.xml
+# .idea/jarRepositories.xml
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# SonarLint plugin
+.idea/sonarlint/
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+### Intellij+all Patch ###
+# Ignore everything but code style settings and run configurations
+# that are supposed to be shared within teams.
+
+.idea/*
+
+!.idea/codeStyles
+!.idea/runConfigurations
+
+### Java ###
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+replay_pid*
+
+### Gradle ###
+.gradle
+**/build/
+!src/**/build/
+
+# Ignore Gradle GUI config
+gradle-app.setting
+
+# Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)
+!gradle-wrapper.jar
+
+# Avoid ignore Gradle wrappper properties
+!gradle-wrapper.properties
+
+# Cache of project
+.gradletasknamecache
+
+# Eclipse Gradle plugin generated files
+# Eclipse Core
+.project
+# JDT-specific (Eclipse Java Development Tools)
+.classpath
+
+### Gradle Patch ###
+# Java heap dump
+*.hprof
+
+# End of https://www.toptal.com/developers/gitignore/api/gradle,intellij+all,java

backend/api_gateway/HELP.md

@@ -0,0 +1,88 @@
+# Getting Started
+
+### Reference Documentation
+For further reference, please consider the following sections:
+
+* [Official Gradle documentation](https://docs.gradle.org)
+* [Spring Boot Gradle Plugin Reference Guide](https://docs.spring.io/spring-boot/docs/3.1.4/gradle-plugin/reference/html/)
+* [Create an OCI image](https://docs.spring.io/spring-boot/docs/3.1.4/gradle-plugin/reference/html/#build-image)
+* [GraalVM Native Image Support](https://docs.spring.io/spring-boot/docs/3.1.4/reference/html/native-image.html#native-image)
+* [Spring Boot Testcontainers support](https://docs.spring.io/spring-boot/docs/3.1.4/reference/html/features.html#features.testing.testcontainers)
+* [Testcontainers Postgres Module Reference Guide](https://java.testcontainers.org/modules/databases/postgres/)
+* [Spring Boot DevTools](https://docs.spring.io/spring-boot/docs/3.1.4/reference/htmlsingle/index.html#using.devtools)
+* [Spring Web](https://docs.spring.io/spring-boot/docs/3.1.4/reference/htmlsingle/index.html#web)
+* [Spring Security](https://docs.spring.io/spring-boot/docs/3.1.4/reference/htmlsingle/index.html#web.security)
+* [OAuth2 Client](https://docs.spring.io/spring-boot/docs/3.1.4/reference/htmlsingle/index.html#web.security.oauth2.client)
+* [OAuth2 Resource Server](https://docs.spring.io/spring-boot/docs/3.1.4/reference/htmlsingle/index.html#web.security.oauth2.server)
+* [Spring Data JPA](https://docs.spring.io/spring-boot/docs/3.1.4/reference/htmlsingle/index.html#data.sql.jpa-and-spring-data)
+* [Flyway Migration](https://docs.spring.io/spring-boot/docs/3.1.4/reference/htmlsingle/index.html#howto.data-initialization.migration-tool.flyway)
+* [Validation](https://docs.spring.io/spring-boot/docs/3.1.4/reference/htmlsingle/index.html#io.validation)
+* [Spring Boot Actuator](https://docs.spring.io/spring-boot/docs/3.1.4/reference/htmlsingle/index.html#actuator)
+* [Testcontainers](https://java.testcontainers.org/)
+
+### Guides
+The following guides illustrate how to use some features concretely:
+
+* [Building a RESTful Web Service](https://spring.io/guides/gs/rest-service/)
+* [Serving Web Content with Spring MVC](https://spring.io/guides/gs/serving-web-content/)
+* [Building REST services with Spring](https://spring.io/guides/tutorials/rest/)
+* [Securing a Web Application](https://spring.io/guides/gs/securing-web/)
+* [Spring Boot and OAuth2](https://spring.io/guides/tutorials/spring-boot-oauth2/)
+* [Authenticating a User with LDAP](https://spring.io/guides/gs/authenticating-ldap/)
+* [Accessing Data with JPA](https://spring.io/guides/gs/accessing-data-jpa/)
+* [Validation](https://spring.io/guides/gs/validating-form-input/)
+* [Building a RESTful Web Service with Spring Boot Actuator](https://spring.io/guides/gs/actuator-service/)
+
+### Additional Links
+These additional references should also help you:
+
+* [Gradle Build Scans – insights for your project's build](https://scans.gradle.com#gradle)
+* [Configure AOT settings in Build Plugin](https://docs.spring.io/spring-boot/docs/3.1.4/gradle-plugin/reference/htmlsingle/#aot)
+
+## GraalVM Native Support
+
+This project has been configured to let you generate either a lightweight container or a native executable.
+It is also possible to run your tests in a native image.
+
+### Lightweight Container with Cloud Native Buildpacks
+If you're already familiar with Spring Boot container images support, this is the easiest way to get started.
+Docker should be installed and configured on your machine prior to creating the image.
+
+To create the image, run the following goal:
+
+```
+$ ./gradlew bootBuildImage
+```
+
+Then, you can run the app like any other container:
+
+```
+$ docker run --rm -p 8080:8080 backend:0.0.1-SNAPSHOT
+```
+
+### Executable with Native Build Tools
+Use this option if you want to explore more options such as running your tests in a native image.
+The GraalVM `native-image` compiler should be installed and configured on your machine.
+
+NOTE: GraalVM 22.3+ is required.
+
+To create the executable, run the following goal:
+
+```
+$ ./gradlew nativeCompile
+```
+
+Then, you can run the app as follows:
+```
+$ build/native/nativeCompile/backend
+```
+
+You can also run your existing tests suite in a native image.
+This is an efficient way to validate the compatibility of your application.
+
+To run your existing tests in a native image, run the following goal:
+
+```
+$ ./gradlew nativeTest
+```
+