RESPONSE
It is the same for all paths.
[{"fileName":"test.txt","fileDownloadUri":"http:https://localhost:8080/downloadFile/test.txt","filePreviewDownloadUri":null,"fileType":"txt","size":4}]

REQUEST
POST /upload/formdata/{isPreview}
POST /upload/json/{isPreview} 
REQUEST Payload is JSON :[{"originalFileName":"test.txt","contentType":"text/plain","size":4,"payLoad":"dGVzdA=="}
POST /upload/urls/{isPreview}
Payload is String : https://bipbap.ru/wp-content/uploads/2017/04/11-1.jpg,https://bipbap.ru/wp-content/uploads/2017/04/11-2.jpg 
isPreview is Boolean (creating preview file) 
POST /actuator/shutdown
Stop service.

## MULTIPART (MultipartProperties)
# Enable multipart uploads
spring.servlet.multipart.enabled=true
# Threshold after which files are written to disk.
spring.servlet.multipart.file-size-threshold=2KB
# Max file size.
spring.servlet.multipart.max-file-size=200MB
# Max Request Size
spring.servlet.multipart.max-request-size=215MB
## File Storage Properties
# All files uploaded through the REST API will be stored in this directory
file.upload-dir=./uploaded-image
# All preview files uploaded will be stored in this directory
file.upload-dir-preview=./uploaded-image-preview
# Size preview file
file.width-preview=100
file.height-preview=100
## Shotdown (actuator)
# No auth  protected 
management.endpoints.web.exposure.include=*
management.endpoint.shutdown.enabled=true

For the test, you must specify the port.
## DEFINE port for integration test
server.port = 8090