Slombard/cha 510 install and test the telegram appssdk sdk

[552020]

• Install new SDK
• Read and understand the documentation regarding the Launch Params.
• Read and print window.location.hash in which some variable regarding the environemnt in which the TMA is launched are made available to the TMA itself through the query string of the URL of the Mini App. The weird thing is that the official documentation doesn't talk at all about window.location.hash.
• Authorise User
• Send initData from the frontend to the backend: implement a function sendInitData, to an /authorize endpoint in the backend. We could consider to implement it directly in the /get-user endpoint.
• Write an /authorization endpoint in the backend, that takes the Authorization header with the initData and validate that. Write a validation function, which seems to be present for Node.js and Go but not for Python. Is this possible?

[vercel]

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[lmangall]

• What do you use as ressources ?
• Your motivation is solving the authentication ?

I couldn't launch it, after reinstalling the dependencies I got a white screen with this console.log:

Uncaught Error: Unable to retrieve launch parameters from any known source. Perhaps, you have opened your app outside of Telegram?