ios – How to use api upload asset App store connect api

I want to use Appstore connect’s api to upload images using php. But when I finished creating the image and received a response containing the image upload link, I didn’t know what to do next. I tried searching but to no avail. Hope everybody help please.

"uploadOperations" : [ {
                "method" : "PUT",
                "url" : "https://store-030.blobstore.apple.com/itms6-assets-massilia-030001/PurpleSource62%2Fv4%2Fc4%2Fc6%2F5f%2Fc4c65fe0-b616-0454-d71b-7771b95f74f1%2FgzsRhfc7iZIvrJoG3mdTlRGfH-Hu1JJBY_Y82m_QlKU_U003d-1587670858469?uploadId=5ae7a610-859a-11ea-adb0-d8c497b45469&Signature=nL9SQyAh4l1tEwoWQhiflX270Zs%3D&AWSAccessKeyId=MKIA4IEXBU1OGIOUHE96&partNumber=1&Expires=1588275658",
                "length" : 11097,
                "offset" : 0,
                "requestHeaders" : [ {
                    "name" : "Content-Type",
                    "value" : "image/png"
                } ]
           } ],

Appstore api