1- make sure that the image is in the "original-pic" folder
2- in the address bar, add the prober variable, name (which is the name of the original picture, width (required width), and height (required height) in that order. example: http://localhost:3000/api/images?name=african-warlord.jpg&width=100&height=100
3-if the image processing succeeded, you will find a message tells you that the thumbnail had been created.
4- if the api finds out that the thumbnail is already exist, it will not make any processing, and a message will tell you that the thumbnail is already exist
5- if the process is successful, the thumbnail will be saved it the "thumbnail" folder
6- the thumbnail will be saved with the original picture name + new width and height (african-warlord.jpg-300-750.jpg)
npm run start
npm run build
npm run test