Using this service, you can search for mixed words in Google and save the results of the found photos This service is written as full reactive programming (asynchronous) and works as no-blocking After receiving the number of photos desired by the user and receiving and displaying its information to the user asynchronously, it will start receiving resizing and saving the photos to postgres database.

The stored photos are stored in the image table, and in the data field, the photo is stored as an oid of LOB type You can use the following sql command to get the photo binary

select lo_get(data) from image limit 1;

• Java >=17
• Maven >=3.6
• Postgres >=15
• Docker Engine >=24

1. Run bellow command for compile project

cd <PROJECT_DIR>
./mvnw clean package

2. Setup application.yml
3. Run bellow command for run project

cd <PROJECT_DIR>
java -jar target/<application_name>.jar

first set environment variable in docker compose file

SERVER_PORT: 8081
SPRING_DATASOURCE_URL: jdbc:postgresql://postgres:5432/image_downloader
SPRING_DATASOURCE_USERNAME: postgres
SPRING_DATASOURCE_PASSWORD: postgres
GOOGLE_APIKEY: ""
GOOGLE_CX: ""
IMAGE_RESIZE_WIDTH: 100
IMAGE_RESIZE_HEIGHT: 100

next run docker compose by bellow command

cd <PROJECT_DIR>
docker compose up -d

spring:
  datasource:
    url: "jdbc:postgresql://<HOST>:<PORT>/image_downloader"
    username: "<USERNAME>"
    password: "<PASSWORD>"

Set bellow properties for Google search :

google:
  api-key: "<API_KEY>"
  cx: "<SEARCH_ENGINE_ID>"

You can refer to this link to get api-key
And refer to this link to get cx

Set bellow property for image resize :

image:
  resize:
    width: "<WIDTH_SIZE>"
    height: "<HEIGHT_SIZE>"

The project includes Swagger documentation. To use it, you can open the following URL in your browser while the application is running:

http://localhost:8081/webjars/swagger-ui/index.html