← Dashboard
App
Auth Flow
myMEO
MSISDN (phone)
User ID (legacy)
Launch Game
Reset
1
myMEO backend → POST /sandbox/auth/start-game { msisdn }
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2
Open URL with ?sid=…
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3
auth.js → POST /auth/exchange
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4
Backend: validate SID ↔ MSISDN → session_token
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5
session_token → sessionStorage → Unity
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