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Media Service

The Media Service is a component designed to fulfill the following functions within the platform:

  1. Content Upload and Management: It provides a platform for educators to upload and manage multimedia content, including PDF documents, MP4 videos, PowerPoint presentations (PPTX), and more.

  2. MinIO Object Storage Integration: To ensure efficient storage and accessibility, the service utilizes the MinIO object storage system. Different types of media are stored in separate buckets within MinIO, allowing for structured storage.

  3. GraphQL Endpoint: Users can interact with the service through a GraphQL endpoint, enabling the retrieval of URLs for uploading and downloading media files.

Media Service

Environment variables

Relevant for deployment

Name Description Value in Dev Environment Value in Prod Environment
spring.datasource.url PostgreSQL database URL jdbc:postgresql://localhost:3032/media_service jdbc:postgresql://media-service-db-postgresql:5432/media-service
spring.datasource.username Database username root gits
spring.datasource.password Database password root secret
DAPR_HTTP_PORT Dapr HTTP Port 3000 3500
MINIO_ACCESS_KEY Minio Access Key minioadmin gits
MINIO_ACCESS_SECRET Minio Access Secret (Password/Secret Key) secret secret
MINIO_URL URL of the Minio server http://localhost:3010 http://minio:9000/
minio.external.url URL of external minio https://minio.it-rex.ch/ https://minio.it-rex.ch/
server.port Port on which the application runs 3001 3001
mediarecord.delete.cron Cron Expression for deleting mediarecords 0 0 3 * * * 0 0 3 * * *

Other properties

Name Description Value in Dev Environment Value in Prod Environment
spring.graphql.graphiql.enabled Enable GraphiQL web interface for GraphQL true true
spring.graphql.graphiql.path Path for GraphiQL when enabled /graphiql /graphiql
spring.profiles.active Active Spring profile dev prod
spring.jpa.properties.hibernate.dialect Hibernate dialect for PostgreSQL org.hibernate.dialect.PostgreSQLDialect org.hibernate.dialect.PostgreSQLDialect
spring.datasource.driver-class-name JDBC driver class org.postgresql.Driver org.postgresql.Driver
spring.sql.init.mode SQL initialization mode always always
spring.jpa.show-sql Show SQL queries in logs true false
spring.sql.init.continue-on-error Continue on SQL init error true true
spring.jpa.hibernate.ddl-auto Hibernate DDL auto strategy create update
hibernate.create_empty_composites.enabled Enable empty composite types in Hibernate true true
DAPR_GRPC_PORT Dapr gRPC Port - 50001

GraphQL API

The API is documented in the api.md file.

It can be accessed at /graphql and explored via the GraphiQL Playground at /graphiql.

Get started

A guide how to start development can be found in the wiki.