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Customer Statement Processor

There is some storage managed by the server, where user can upload customer statement files (xml or csv). Once file uploaded, a validation operation will be executed by the server to validate it.

Spring Batch Solution

The user can do the following:

  • Upload customer statement file (xml or csv).
  • Subscribe to Server-Sent Events.
  • Get list of all uploaded files with summarized validation result.
  • Get a full validation result for specific file.
  • Delete specific file from storage.

Build The Application - Using Docker (Remote or Local)

  • Remote
# Open new terminal tab, then run

# Build Docker image from branch 'master'
docker build -t customer-statement-processor https://github.com/devahmedshendy/customer-statement-processor.git

# Run Docker container for image 'customer_statement_processor:latest'
docker container run --detach --publish 9090:9090 --name customer-statement-processor customer-statement-processor:latest

# Watch container logs
docker container logs -f customer-statement-processor
  • Local
# Open new terminal tab, then run

# Clone repository
git clone https://github.com/devahmedshendy/customer-statement-processor.git

# Change directory to project
cd customer-statement-processor

# Build Docker image from master branch with name 'customer-statement-processor'
docker build -t customer-statement-processor .

# Run Docker container for image 'customer-statement-processor:latest'
docker container run --detach --publish 9090:9090 --name customer-statement-processor customer-statement-processor:latest

# Watch container logs
docker container logs -f customer-statement-processor

Build The Application - Using Maven

# Open new terminal tab, then run

# Clone repository
git clone https://github.com/devahmedshendy/customer-statement-processor.git

# Change directory to project
cd customer-statement-processor

# Build application using Maven
mvn clean package

# Run Spring boot application using Maven
mvn spring-boot:run

Test The Application

  • Monitor server-sent events
# Open separate terminal tab, then run
curl "http://localhost:9090/api/sse"
  • Test the application
# Open separate terminal tab, then run

# Change to project directory
cd customer-statement-processor

# Upload customer statement file that contains errors 
curl -X POST -H "Content-Type: multipart/form-data" -F "file=@./sample/bad_records.csv" "http://localhost:9090/api/storage"

# Upload customer statement file that doesn't contain errors 
curl -X POST -H "Content-Type: multipart/form-data" -F "file=@./sample/records.csv" "http://localhost:9090/api/storage"

# Get list of all uploaded files
curl -X GET "http://localhost:9090/api/storage"

# Get validation result for specific file
curl -X GET "http://localhost:9090/api/validation/{id}"

# Delete from file storage
curl -X DELETE "http://localhost:9090/api/storage?id={id}"