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demo-dapp-backend

The example of demo-dapp backend with authorization by ton address.

Authorization process is:

  1. Client fetches payload to be signed by wallet:
<host>/ton-proof/generatePayload

response: 
"E5B4ARS6CdOI2b5e1jz0jnS-x-a3DgfNXprrg_3pec0="

  1. Client connects to the wallet via TonConnect 2.0 and passes ton_proof request with specified payload. See the frontend SDK for more details.

  2. User approves connection and client receives signed payload with additional prefixes.

  3. Client sends signed result to the backend. Backend checks correctnes of the all prefixes and signature correctness and returns auth token:

<host>/ton-proof/checkProof
{
  "address": "0:f63660ff947e5fe6ed4a8f729f1b24ef859497d0483aaa9d9ae48414297c4e1b", // user's address
  "network": "-239", // "-239" for mainnet and "-1" for testnet
  "proof": {
      "timestamp": 1668094767, // unix epoch seconds
    "domain": {
     "lengthBytes": 21,
      "value": "ton-connect.github.io"
    },
    "signature": "28tWSg8RDB3P/iIYupySINq1o3F5xLodndzNFHOtdi16Z+MuII8LAPnHLT3E6WTB27//qY4psU5Rf5/aJaIIAA==",
    "payload": "E5B4ARS6CdOI2b5e1jz0jnS-x-a3DgfNXprrg_3pec0=" // payload from the step 1.
  }
}

response: 
{
    "token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhZGRyZXNzIjoiMDpmNjM2NjBmZjk0N2U1ZmU2ZWQ0YThmNzI5ZjFiMjRlZjg1OTQ5N2QwNDgzYWFhOWQ5YWU0ODQxNDI5N2M0ZTFiIiwiZXhwIjoxNjY4MDk4NDkwfQ.13sg3Mgt2hT9_vChan3bmQkp_Wsigj9YjSoKABTsVGA"
}

See ton_proof details in the docs.

  1. Client can access auth-required endpoints:
<host>/dapp/getAccountInfo?network=-239
Bearer <token>

response:
json

Ton Proof JS verification

You can find an example of the ton_proof verification in JavaScript here.