Medium Article: https://medium.com/@zilecao/ab3e25919f75
Example contract: https://ropsten.etherscan.io/address/0xE9A03Bd5fA823FD0CDA9B841514010A559959F99#code
Note: Currently when making a sell order, seller needs to send 0.0045 ETH
Note2: There are still some bugs with current escrow contract, and more features will be implemented in the near future
To use the current version (for a more in-depth user guide with videos, scroll to the Quickstart section on our medium article):
- Clone github repo
- In a terminal, run
cd escrow-contract2
npm install
- create a new file in the root directory named ".env" and paste the following:
ROPSTEN_RPC_URL=
RINKEBY_RPC_URL=
PRIVATE_KEY_1=
-
And input relevant info next to the equal signs (you can always add more as you add more networks to deploy to in truffle-config.js)
-
Save everything and run
truffle migrate --network YOUR_DESIRED_NETWORK
-
If you want to change the network, follow the same template in truffle-config.js and replace the "YOUR_DESIRED_NETWORK" in the terminal line above with the other network's name (if confused, check out Medium article for in-depth guide)
-
The contract should be deployed soon. To find it, look for "contract address" under the BridXeEscrow deployment in your terminal - copy it and search for it on etherscan or whichever network scanner you deployed to. For our ropsten contract, you can interact with it here: (Example) http://tinyurl.com/BridXeEscrow2UI or on the ropsten etherscan
-
To verify it on etherscan, select "multi-file solidity" and compiler 0.8.11. Keep everything else the same and when it prompts you to upload files, upload all 3 from your computer:
Migrations.sol
ReentrancyGuard.sol
BridXeEscrow.sol
- Extra: To create and deploy to your own local Avalanche subnet, check out our Medium article!
This protocol is designed to facilitate the transfer of phygical goods using blockchain technology. Within our ecosystem, we have created digital copies of physical products using OpenGL, which we can encode on an Ethereum Virtual Machine (EVM)-based blockchain as a Non-Fungible Token (NFT). We consider this a "phygital" pairing, since the digital copy has utility outside of verifying the authenticity of the original purchase - namely, it can also be used in the metaverse. In order to ensure the authenticity of resales, we want to make sure that both this NFT and the physical product are moved in tandem.
In our protocol, this starts with the negotiation between a buyer and seller as to the price of a secondary sale. Once this is agreed upon, the seller locks the digital (NFT) copy of the product in the escrow and the buyer locks the agreed upon amount of Ether (to-do: support for other ERC-20 tokens). The seller can then ship the physical product to the buyer, after which both parties will sign off on the transaction and the funds will be released from escrow.
This protocol is the baseline for a decentralized peer2peer resale market that BridXe is building.
Currently, this repo's smart contract follows this structure:
But we plan to integrate NFT escrows in the near future:
