feat: add transaction ms flow

.gitignore

@@ -102,3 +102,5 @@ dist
 
 # TernJS port file
 .tern-port
+
+.idea

README.md

@@ -33,7 +33,7 @@ Every transaction with a value greater than 1000 should be rejected.
 # Tech Stack
 
 <ol>
-  <li>Node. You can use any framework you want (i.e. Nestjs with an ORM like TypeOrm or Prisma) </li>
+  <li>Java. You can use any framework you want (i.e. spring web flux with an ORM like spring jpa o r2db2) </li>
   <li>Any database</li>
   <li>Kafka</li>    
 </ol>

anti-fraud-services/.gitattributes

@@ -0,0 +1,2 @@
+/mvnw text eol=lf
+*.cmd text eol=crlf

anti-fraud-services/.gitignore

@@ -0,0 +1,36 @@
+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/
+
+# Any autogenerated Avro code
+**/kafka/avro/

anti-fraud-services/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,3 @@
+wrapperVersion=3.3.4
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.11/apache-maven-3.9.11-bin.zip

anti-fraud-services/Dockerfile

@@ -0,0 +1,15 @@
+FROM ubuntu:22.04
+
+RUN apt-get update && \
+    apt-get install -y openjdk-17-jdk openjdk-17-jre maven && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+WORKDIR /transaction-services
+
+COPY pom.xml .
+COPY src ./src
+
+RUN mvn clean package -DskipTests
+
+CMD ["java", "-jar", "target/anti-fraud-services-0.0.1-SNAPSHOT.jar"]