How To Get Freefire in-game Name Using UID Like Gametv app for my Tournament App . I Need Help?

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#1

Please Help Me To Devolpe a Tournament App in That i Want To Get The Freefire In-Gamename Using There UID To Identify The Name.

#2

Earning apps are not allowed.

#3

Please Post a Tutorial I Wanted To Learn Just How To Use Please some one Help Me.