lesyk / CustomerConsentWallet

CustomerConsentWallet

###Install & Run

1. cd wallet
2. yarn install
3. bower install
4. ember s

Contracts

Contracts source code is located in contracts/

The Consents contract is the one currently used. It can be used as a 'singleton' contract that contains state on all consents. The following function can be called on the contract:

• function requestConsent(address customer, address data_owner, uint id) Called by the data requester. Assumes the consent id parameter is globally unique.
• function updateConsent(address data_owner, address data_requester, uint id, State state) returns (bool) Called by customer. State should be 1 or 3 for for given/rejected (currently not enforced).
• function requestData(address customer, address data_owner, uint id) Called by data requester.
• function provideData(address customer, address data_requester, uint id, bytes payload) Called by data owner.

All function calls generates an event (which can be used to check the return value of the function call).

Parties that call a contract function, must have enough ether to pay for the transaction.

Due to the global nature of the contract and to Solidity/Ethereum VM limitations, reading data from the contract is somewhat convoluted currently. A customer's contracts can be retrieved by:

• function customerConsents(address customer) returns the number of consents for the customer
• Look up in the public accessible customer_mapping with customer address and index (0 - number of consents) returns the indices (one for each lookup) in the public accessible consents array
• A consent can be retrieved from the consents array using an index

An example can be seen in wallet/app/routes/consents.js.

The contract can be removed by calling the kill() function, which can only be called by the account that deployed the contract.

https://ethereum.github.io/browser-solidity can be used to experiment with, develop and debug the contract.

##Create consent

1. Create two accounts: for data owner and data requestor (both should have some money on them).
2. cd dataowner
3. make
4. node index.js [e-mail] password 0x9a804CF13E3defb1043D2B81BE95D14C787c94Dc
5. cd datarequestor
6. make
7. node index.js [e-mail] password 0xA04A6A76F1E23D80E075f490a2E23daACB65d0A9 [e-mail] [e-mail]
8. Approve/Disaprove from wallet app