forked from Web3N3/web3-course
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4 changed files with 149 additions and 105 deletions
105
l6/README.md
105
l6/README.md
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## Prerequisites
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To run this example we will need:
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* Wallet with sufficient GAS on it. In our example we will be using wallet with address `NP8wjGz3Wvxe4gUAkTbK2McR95Y4LM2jMW`.
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* Instance of frostfs-aio running with oracle enabled.
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## Running the example
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In this section we will assume that:
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* Our wallet is located next to `web3-course` directory.
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* We run all commands in directory `l6`.
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### 1. Compile contracts
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To compile the contracts we run the following commands:
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```sh
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$ neo-go contract compile -in lottery/lottery_contract.go --config lottery/config.yml --out lottery/lottery.nef --manifest lottery/config.json
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$ neo-go contract compile -in player/player_contract.go --config player/config.yml --out player/player.nef --manifest player/config.json
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```
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### 2. Assign contracts to the group
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Now we will create a wallet for a group that will contain both contracts. It is possible to skip this step and use wallet `frostfs-aio/morph/node-wallet.json`, but for the sake of purity it is recommended to use a separate wallet.
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To create a wallet, we run the following command. When prompted, enter any name for the account, we will use `l6-game` as group name for this example:
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```sh
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$ neo-go wallet init -w ../../group-wallet.json -a
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Enter the name of the account > l6-game
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Enter new password >
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Confirm password >
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```
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Copy account address from the command's output, we will need it in a moment:
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```json
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{
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"version": "1.0",
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"accounts": [
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{
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"address": "NgdcCGcR7QveKn9yjQgpemtgtn5zLn33b6", <-- NOTE: take this value
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...
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```
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Now we need to assign group to contracts' manifests with the following commands (pay attention that sender is address of our wallet with GAS, but --wallet and --address are referring to the group wallet that we've just created):
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```sh
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$ neo-go contract manifest add-group -n lottery/lottery.nef -m lottery/config.json --sender NP8wjGz3Wvxe4gUAkTbK2McR95Y4LM2jMW --wallet ../../group-wallet.json --address NYThT8RYFhkBzJfzMwCe67A63p2WoDev9X
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$ neo-go contract manifest add-group -n player/player.nef -m player/config.json --sender NP8wjGz3Wvxe4gUAkTbK2McR95Y4LM2jMW --wallet ../../group-wallet.json --address NYThT8RYFhkBzJfzMwCe67A63p2WoDev9X
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```
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Now our contracts are ready to be deployed.
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### 3. Deploy contracts
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Now we can deploy lottery contract:
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```sh
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$ neo-go contract deploy -r http://localhost:30333 -w ../../wallet.json --in lottery/lottery.nef --manifest lottery/config.json
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```
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Copy contract hash from the command output and convert it to LE address, for example:
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```sh
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...
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Contract: 8b81042613a3df06b4ed0479407ab5107a4a7aaf
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$ neo-go util convert '8b81042613a3df06b4ed0479407ab5107a4a7aaf'
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BE ScriptHash to Address NYdbfd7nqhPCuS9dBhQKYkr8u1UKCnJykp
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LE ScriptHash to Address NbuowFNug7QCPM3zYc8HGH5ZsWbHBdGLR9 <-- NOTE: take this value
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...
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```
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Now we can deploy player contract, it takes hash of lottery contract as a parameter to its' _deploy method:
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```sh
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$ neo-go contract deploy -r http://localhost:30333 -w ../../wallet.json --in player/player.nef --manifest player/config.json [ hash160:NbuowFNug7QCPM3zYc8HGH5ZsWbHBdGLR9 ]
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```
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Copy hash of the player contract from the command's output to use it in the next sections:
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```sh
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...
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Contract: e7e4910b3a83ce0eff180a3f5462030391fde830 <-- NOTE: take this value
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```
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This time we won't need to convert it to any other format and will be able to use it "as is".
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### 4. Create a new player
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To create a new player, invoke `newPlayer` function on the player contract and specify name of the player. In example below we create a player with the name `demo`:
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```sh
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neo-go contract invokefunction -r http://localhost:30333 -w ../../wallet.json e7e4910b3a83ce0eff180a3f5462030391fde830 newPlayer string:demo
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```
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```sh
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neo-go contract invokefunction -r http://localhost:30333 -w ../../wallet.json 8d099cb315c03c1f040d8912f1f2a84e569ca50c buyItem string:demo string:Shortbow -- 'NP8wjGz3Wvxe4gUAkTbK2McR95Y4LM2jMW:None'
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```
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149
l6/docs/README.md
Normal file
149
l6/docs/README.md
Normal file
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@ -0,0 +1,149 @@
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## Prerequisites
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To run this example we will need:
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* Wallet with sufficient GAS on it. In our example we will be using wallet with address `NP8wjGz3Wvxe4gUAkTbK2McR95Y4LM2jMW`.
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## Running the example
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In this section we will assume that:
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* Our wallet is located next to `web3-course` directory.
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* We run all commands in directory `l6`.
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### 1. Compile contracts
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To compile the contracts we run the following commands:
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```sh
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$ neo-go contract compile -in player/player_contract.go --config player/config.yml --out player/player.nef --manifest player/config.json
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$ neo-go contract compile -in merchant/merchant_contract.go --config merchant/config.yml --out merchant/merchant.nef --manifest merchant/confi
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g.json
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```
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### 2. Assign player contract to the group
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Now we will create a wallet for a group that will contain both contracts. It is possible to skip this step and use wallet `frostfs-aio/morph/node-wallet.json`, but for the sake of purity it is recommended to use a separate wallet.
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To create a wallet, we run the following command. When prompted, enter any name for the account, we will use `l6-game` as group name for this example:
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```sh
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$ neo-go wallet init -w ../../group-wallet.json -a
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Enter the name of the account > l6-game
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Enter new password >
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Confirm password >
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```
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Copy account address from the command's output, we will need it in a moment:
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```json
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{
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"version": "1.0",
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"accounts": [
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{
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"address": "NgdcCGcR7QveKn9yjQgpemtgtn5zLn33b6", <-- NOTE: take this value
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...
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```
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Now we need to assign group to contracts' manifest with the following command (pay attention that sender is address of our wallet with GAS, but --wallet and --address are referring to the group wallet that we've just created):
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```sh
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$ neo-go contract manifest add-group -n player/player.nef -m player/config.json --sender NP8wjGz3Wvxe4gUAkTbK2McR95Y4LM2jMW --wallet ../../group-wallet.json --address NYThT8RYFhkBzJfzMwCe67A63p2WoDev9X
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```
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Now our contracts are ready to be deployed.
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### 3. Deploy contracts
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Now we can deploy player contract:
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```sh
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$ $ neo-go contract deploy -r http://localhost:30333 -w ../../wallet.json --in player/player.nef --manifest player/config.json
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```
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Copy contract hash from the command output and convert it to LE address, for example:
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```sh
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...
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Contract: 25b7b493c37fc740bac6603281de01f451847805
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$ neo-go util convert '25b7b493c37fc740bac6603281de01f451847805'
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BE ScriptHash to Address NPMQFvjSdBWotKA1PrsrkAtiSzyRXPhDF9
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LE ScriptHash to Address NLQtwNfn4LW3As2r2YfkaRZTpoiTuRfEc5 <-- NOTE: take this value
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...
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```
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Now we can deploy merchant contract, it takes hash of player contract as a parameter to its' _deploy method:
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```sh
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$ neo-go contract deploy -r http://localhost:30333 -w ../../wallet.json --in merchant/merchant.nef --manifest merchant/config.json [ hash160:N
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LQtwNfn4LW3As2r2YfkaRZTpoiTuRfEc5 ]
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```
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Copy contract hash from the command output and convert it to LE address, for example:
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```sh
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...
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Contract: 443686682d4a3a59408a6b44b766baed894ad679 <-- NOTE: take this value
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$ neo-go util convert '443686682d4a3a59408a6b44b766baed894ad679'
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BE ScriptHash to Address NS8eTGN8cNabMe6gG9zAZhHyMueuLfM94j
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LE ScriptHash to Address NX2BfBKZaq2eS28Bn4oDA5uuKFKvB2UpxJ <-- take this value
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```
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### 4. Create a new player and trade for in-game currency
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To create a new player, invoke `newPlayer` function on the player contract and specify name of the player. In example below we create a player with the name `demo`:
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```sh
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$ neo-go contract invokefunction -r http://localhost:30333 -w ../../wallet.json 25b7b493c37fc740bac6603281de01f451847805 newPlayer string:demo
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```
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Try to buy sword with scope None, it should fail:
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```sh
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$ neo-go contract invokefunction -r http://localhost:30333 -w ../../wallet.json 25b7b493c37fc740bac6603281de01f451847805 buyItem string:demo string:Sword -- 'NP8wjGz3Wvxe4gUAkTbK2McR95Y4LM2jMW:None'
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```
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Try to do the same with scope CalledByEntry, it should work:
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```sh
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$ neo-go contract invokefunction -r http://localhost:30333 -w ../../wallet.json 25b7b493c37fc740bac6603281de01f451847805 buyItem string:demo string:Sword -- 'NP8wjGz3Wvxe4gUAkTbK2McR95Y4LM2jMW:CalledByEntry'
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```
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Try to sell item:
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```sh
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$ neo-go contract invokefunction -r http://localhost:30333 -w ../../wallet.json 25b7b493c37fc740bac6603281de01f451847805 sellItem string:demo string:Sword -- 'NP8wjGz3Wvxe4gUAkTbK2McR95Y4LM2jMW:CalledByEntry'
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```
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Also you can try scopes `CustomContracts` and `CustomGroups`, they should both work too:
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```sh
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$ neo-go contract invokefunction -r http://localhost:30333 -w ../../wallet.json 25b7b493c37fc740bac6603281de01f451847805 buyItemForGas string:demo int:1 int:23 hash160:NX2BfBKZaq2eS28Bn4oDA5uuKFKvB2UpxJ -- 'NP8wjGz3Wvxe4gUAkTbK2McR95Y4LM2jMW:CustomContracts:25b7b493c37fc740bac6603281de01f451847805'
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$ neo-go contract invokefunction -r http://localhost:30333 -w ../../wallet.json 25b7b493c37fc740bac6603281de01f451847805 buyItem string:demo string:Sword -- 'NP8wjGz3Wvxe4gUAkTbK2McR95Y4LM2jMW:CustomGroups:029dd9b3639a23ea7ad4356fe7abb4f5a01eaea9f2e5c7138f3e174d21b03f682f'
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```
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### 5. Trade for gas
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Transfer gas to account of merchant contract (you will need LE address of merchant contract that we've captured during deployment):
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```sh
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$ neo-go wallet nep17 transfer -r http://localhost:30333 -w ../../frostfs-aio/morph/node-wallet.json --from Nhfg3TbpwogLvDGVvAvqyThbsHgoSU
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Kwtn --to NX2BfBKZaq2eS28Bn4oDA5uuKFKvB2UpxJ --token GAS --amount 1000
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```
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Sell Sword to merchant for 20 GAS:
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```sh
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$ neo-go contract invokefunction -r http://localhost:30333 -w ../../wallet.json 25b7b493c37fc740bac6603281de01f451847805 sellItemForGas string:demo string:Sword int:20 hash160:NX2BfBKZaq2eS28Bn4oDA5uuKFKvB2UpxJ -- 'NP8wjGz3Wvxe4gUAkTbK2McR95Y4LM2jMW:CalledByEntry'
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```
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Buy back sword from merchant for 23 GAS:
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```sh
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$ neo-go contract invokefunction -r http://localhost:30333 -w ../../wallet.json 25b7b493c37fc740bac6603281de01f451847805 buyItemForGas str
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ing:demo int:1 int:23 hash160:NX2BfBKZaq2eS28Bn4oDA5uuKFKvB2UpxJ -- 'NP8wjGz3Wvxe4gUAkTbK2McR95Y4LM2jMW:CustomContracts:d2a4cff31913016155e38e474a2c06d08be276cf:25b7b493c37fc740bac6603281de01f451847805'
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```
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BIN
l6/docs/blog - thou shalt check their witnesses.pdf
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l6/docs/blog - thou shalt check their witnesses.pdf
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l6/docs/slides.pdf
Normal file
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l6/docs/slides.pdf
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