https://github.com/decodedco/blockchain-marketplace-chaincode

Decoded's blockchain powered marketplace - replaced by blockchain.decoded.com
https://github.com/decodedco/blockchain-marketplace-chaincode

Last synced: 11 months ago
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Decoded's blockchain powered marketplace - replaced by blockchain.decoded.com

Host: GitHub
URL: https://github.com/decodedco/blockchain-marketplace-chaincode
Owner: DecodedCo
Created: 2017-02-22T15:39:30.000Z (over 9 years ago)
Default Branch: master
Last Pushed: 2017-02-22T15:55:33.000Z (over 9 years ago)
Last Synced: 2025-03-14T08:21:34.390Z (over 1 year ago)
Language: Go
Homepage:
Size: 16.6 KB
Stars: 2
Watchers: 2
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md

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README

# blockchain-golang-chaincode

The blockchain application in Golang

# Running the application

You need to add the hyperledger GO code to your local installation.

so in your GO/src/github.com folder:

```
mkdir hyperledger
cd hyperledger
git clone git@github.com:hyperledger/fabric.git
cd fabric
git fetch
git checkout v.06
```

Then return to this repo and run:

```
go build .
```

The run and register it with the blockchain using

```
CORE_CHAINCODE_ID_NAME= CORE_PEER_ADDRESS=0.0.0.0:7051 ./blockchain-golang-chaincode
```

```
CORE_CHAINCODE_ID_NAME=DecodedBlockChain CORE_PEER_ADDRESS=0.0.0.0:7051 ./blockchain-golang-chaincode
```

# Operations overview.

### Deploy

Now **deploy** the chaincode using:

```
curl -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"jsonrpc": "2.0",
"method": "deploy",
"params": {
"type":1,
"chaincodeID": {
"name":"DecodedBlockChain"
},
"ctorMsg": {
"function":"init",
"args": []
}
},
"id": 46664
}' "http://0.0.0.0:7050/chaincode"
```

**Note: This will be different in the future when using a cluster of peers since you cannot attach a process to all of them it seems**

### Invoke and Query OWNERS

To create a new owner we need to use the **invoke** method (this adds a `transaction` to the blockchain).

```
curl -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"jsonrpc": "2.0",
"method": "invoke",
"params": {
"type":1,
"chaincodeID": {
"name":"DecodedBlockChain"
},
"ctorMsg": {
"function":"addOwnerString",
"args": [ "dcd", "Decoded", "100000", "description", "logo-url", "tag" ]
}
},
"id": 2600
}' "http://0.0.0.0:7050/chaincode"
```

and create another one

```
curl -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"jsonrpc": "2.0",
"method": "invoke",
"params": {
"type":1,
"chaincodeID": {
"name":"DecodedBlockChain"
},
"ctorMsg": {
"function":"addOwnerString",
"args": [ "bc", "BlockChain", "100000", "description", "logo-url", "tag" ]
}
},
"id": 2600
}' "http://0.0.0.0:7050/chaincode"
```

Now we have two companies available. We can read the owners in three ways:

1. To now **query** a specific owner:

```
curl -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"jsonrpc": "2.0",
"method": "query",
"params": {
"type":1,
"chaincodeID": {
"name":"DecodedBlockChain"
},
"ctorMsg": {
"function":"read",
"args": [ "dcd" ]
}
},
"id": 1337
}' "http://0.0.0.0:7050/chaincode"
```

To **query** all owners without the owners full information

```
curl -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"jsonrpc": "2.0",
"method": "query",
"params": {
"type":1,
"chaincodeID": {
"name":"DecodedBlockChain"
},
"ctorMsg": {
"function":"read",
"args": [ "Owners" ]
}
},
"id": 1337
}' "http://0.0.0.0:7050/chaincode"
```

To **query** all Owners with full information you can use the function `readAllOwners`

```
curl -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"jsonrpc": "2.0",
"method": "query",
"params": {
"type":1,
"chaincodeID": {
"name":"DecodedBlockChain"
},
"ctorMsg": {
"function":"readAllOwners",
"args": []
}
},
"id": 1337
}' "http://0.0.0.0:7050/chaincode"
```

### Invoke and Query ASSETS

To add an asset:

```
curl -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"jsonrpc": "2.0",
"method": "invoke",
"params": {
"type":1,
"chaincodeID": {
"name":"DecodedBlockChain"
},
"ctorMsg": {
"function":"addAssetString",
"args": [ "appleId", "Apples", "dcd", "100", "13", "description", "logo", "approval", "approvalqty", "phonenr", "phonemsg", "tag" ]
}
},
"id": 2600
}' "http://0.0.0.0:7050/chaincode"
```

The quantity and price are no optional

```
curl -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"jsonrpc": "2.0",
"method": "invoke",
"params": {
"type":1,
"chaincodeID": {
"name":"DecodedBlockChain"
},
"ctorMsg": {
"function":"addAssetString",
"args": [ "bananaId", "Banana", "dcd", "100", "23", "description", "logo", "approval", "approvalqty", "phonenr", "phonemsg", "tag" ]
}
},
"id": 2600
}' "http://0.0.0.0:7050/chaincode"
```

To read all the Assets you can use a similar function as for the Owners: `readAllAssets`

```
curl -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"jsonrpc": "2.0",
"method": "query",
"params": {
"type":1,
"chaincodeID": {
"name":"DecodedBlockChain"
},
"ctorMsg": {
"function":"readAllAssets",
"args": [ ]
}
},
"id": 0
}' "http://0.0.0.0:7050/chaincode"
```

### Invoke and Query TRANSACTIONS

There are two types of Transactions possible at this moment: straight-through (no approval needed) and pending (approval needed).

To transact an asset straight away without approval:

```
curl -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"jsonrpc": "2.0",
"method": "invoke",
"params": {
"type": 1,
"chaincodeID": {
"name": "DecodedBlockChain"
},
"ctorMsg": {
"function": "transactAsset",
"args": [
"appleId", "dcd", "bc", "33", "12345", "FALSE"
]
}
},
"id": 1
}' "http://0.0.0.0:7050/chaincode"
```

The input arguments are: `assetId`, `sellerId`, `buyerId`, `quantity`, `price`, `approvalRequired`.

You can check the transactions using

```
curl -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"jsonrpc": "2.0",
"method": "query",
"params": {
"type":1,
"chaincodeID": {
"name":"DecodedBlockChain"
},
"ctorMsg": {
"function":"readAllTransactions",
"args": []
}
},
"id": 0
}' "http://0.0.0.0:7050/chaincode"
```

To create a transaction that needs to be approved use:

```
curl -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"jsonrpc": "2.0",
"method": "invoke",
"params": {
"type": 1,
"chaincodeID": {
"name": "DecodedBlockChain"
},
"ctorMsg": {
"function": "transactAsset",
"args": [
"appleId", "dcd", "bc", "47", "8888", "TRUE"
]
}
},
"id": 1
}' "http://0.0.0.0:7050/chaincode"
```

To approve a transaction

```
curl -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"jsonrpc": "2.0",
"method": "invoke",
"params": {
"type": 1,
"chaincodeID": {
"name": "DecodedBlockChain"
},
"ctorMsg": {
"function": "approveTransaction",
"args": [
""
]
}
},
"id": 1
}' "http://0.0.0.0:7050/chaincode"
```

To decline a transaction

```
curl -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"jsonrpc": "2.0",
"method": "invoke",
"params": {
"type": 1,
"chaincodeID": {
"name": "DecodedBlockChain"
},
"ctorMsg": {
"function": "declineTransaction",
"args": [
""
]
}
},
"id": 1
}' "http://0.0.0.0:7050/chaincode"
```

### Other

To change the validation status of an owner:

```
curl -X POST -H "Content-Type: application/json" -H "Cache-Control: no-cache" -d '{
"jsonrpc": "2.0",
"method": "invoke",
"params": {
"type":1,
"chaincodeID": {
"name":"DecodedBlockChain"
},
"ctorMsg": {
"function":"changeOwnerValidationStatus",
"args": [ "bc" ]
}
},
"id": 2600
}' "http://0.0.0.0:7050/chaincode"
```

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https://github.com/decodedco/blockchain-marketplace-chaincode

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