DID

Setup Remix IDE​

• Please go to the remix website.

• Copy the file to the remix on the file explorer page : file can be uploaded to the explorer or you can create new file named did.sol and paste code in new file.

• Go to solidity compiler page

• Compile the contract

• Go to deploy and run page

• Select the Environment to inject provider Metamask

• Choose the account which has the token

• Choose the smart contract

• Set the 0x0000000000000000000000000000000000000800 in the address and click At Address

• Click the deployed Contracts and test the below functions.

Functions​

1. add_attribute

   • Parameter:

     • did_account: should be the public's hex key (0x…). Substrate account that should be converted to hex format with website
     • key: should be hex.
     • value: should be hex
     • validity_for: if you don't want to set it, please fill 0

   • Behavior:

     • The same as extrinsic, peaqDid -> addAttribute

   • Result:

     • Please check the eth transaction is okay (in metamask or in remix)
     • Please check whether the EVM log appears in remix's terminal
     • Please check whether this DID exist on the Substrate side (in polkadot.js recent events or via read_attribute extrinsic)

2. update_attribute

   • Parameter:
     • did_account: should be the public's hex key (0x…)
     • key: should be hex
     • value: should be hex
     • validity_for: if you don't want to set it, please fill 0
   • Behavior:
     • The same as extrinsic, peaqDid -> updateAttribute
   • Result:
     • Please check the eth transaction is okay
     • Please check whether the EVM log appears
     • Please check whether this DID change on the Substrate side

3. remove_attribute

   • Parameter:
     • did_account: should be the public's hex key (0x…)
     • key: should be hex
   • Behavior:
     • The same as extrinsic, peaqDid -> removeAttribute
   • Result:
     • Please check the eth transaction is okay
     • Please check whether the EVM log appears
     • Please check whether this DID remove on the Substrate side

4. read_attribute
   • Parameter:
     • did_account: should be the public's hex key (0x…)
     • key: should be hex
   • Behavior:
     • The same as RPC, peaqDid -> readAttributes
   • Result:
     • Please check that you can get the related information under the read_attribute fields, information is displayed in "tuple: xxx'