TikTok links keep changing daily

Question

I have an app that was deployed to heroku. In that app, there is a file called data.js that has a few links to some tiktok videos. I have noticed that everyday, the links to the tiktok videos keeps changing, and this breaks the app.

For example, today, the link is this: https://v16m-webapp.tiktokcdn-us.com/7fbd3c97edab386e3c6bfbbe84379796/62873280/video/tos/alisg/tos-alisg-pve-0037/87b58df4f5b34e0c8ee2008620a59c23/?a=1988&br=2180&bt=1090&cd=0%7C0%7C1%7C0&ch=0&cr=0&cs=0&cv=1&dr=0&ds=3&er=&ft=ebtHKH-qMyq8Zt~wbwe2NoQefl7Gb&l=202205200017250100040050060030360278D492&lr=tiktok_m&mime_type=video_mp4&net=0&pl=0&qs=0&rc=anIzb3JtajxmNTMzODgzM0ApM2Y1aTxmZGRoN2Q2ZDRnO2dyLS0yLjMzaWpgLS1kLzRzc2E2MmJiYzMuM15hNDAvXzU6Yw%3D%3D&vl=&vr=

Yesterday, the link was different. The 62973280 number was another number and the 7fbd3c97edab386e3c6bfbbe84379796/ part was completely different.

Why does tiktok keep changing its links everyday and how do I parse tiktok and get the new link and deploy that everyday instead of doing it all manually?

Edit: I need the video in an mp4 format, so I right click on the tiktok video and copy the video link. However, that link keeps changing.