Caduceus testnet deployment DApp tutorial — IDE Development Contract

IDE tool peparation

Enter ide.caduceus.foundation/ to open IDE’s online development website

Install MetaMask plugin-in

This plug-in is a plug-in package for Google Chrome browser, which is not provided by other browsers.

Please refer to “Use of MetaMask” for details.

Top-up test coins

If the address already has CMP test coins, skip this step.

If there is no CMP test currency, please refer to “Use of MetaMask”.

IDE connects to MetaMask

The key data items are circled with red boxes and their order is marked by numbers

Number 1 in Figure 4–1 indicates clicking will show the right window
Number 2 in Figure 4–1 indicates the MetaMask window will pop up
Tip: If the MetaMask connection window does not pop up, please open MetaMask and select QuiGon to test the network in the network display
Number 3 in Figure 4–1 indicates the selected account
Number 4 in Figure 4–1 indicates Figure 4–2 will pop up when clicked
Number 1 in Figure 4–2 means click to complete the connection

Figure4–1

Figure4–2

Use IDE To Write Contract

Write Contract

Create the contract file Storage.sol according to the sequence in Figure 5–1

Figure5–1

Compile the contract

Write the contract according to the content in the red box at number 1 in Figure 5–2
Number 2 in Figure 5–2 means that clicking will show the right window
Number 3 in Figure 5–2 indicates the compiler version is 0.4.16
Number 4 in Figure 5–2 indicates the contract development language is Solidity
Number 5 in Figure 5–2 indicates the contract can be compiled by clicking

Figure5–2

Use IDE to publish contract

Release contract

Click on number 1 in Figure 6–1 to open the window on the right
The network published at number 2 in Figure 6–1
Number 3 in Figure 6–1 indicates the address where the contract is released
Number 4 in Figure 6–1 indicates the contract document to be released
Number 5 in Figure 6–1 indicates that the contract will be released by clicking, and a window with number 6 will pop up
Number 6 in Figure 6–1 indicates that it will be published to the internet after clicking

Figure6–1

View contract

Open the contract deployment details in Figure 6–3 after executing the sequence according to Figure 6–2
Number 1 in Figure 6–2 means the MetaMask plug-in will be opened after clicking
Number 2 in Figure 6–2 represents the chain of the release contract
Number 3 in Figure 6–2 indicates the address where the contract is issued
Number 4 in Figure 6–2 means to switch to the Activity option after clicking
Number 5 in Figure 6–2 represents the released contract
Number 1 in Figure 6–3 indicates the details of contract deployment

Figure6–2

Figure6–3

Call contract

Number 1 in Figure 6–4 indicates calling the contract method
Number 2 in Figure 6–4 indicates the confirmation call
Number 1 in Figure 6–5 represents the contract transaction details

Figure6–4

Figure6–5

RPC release contract

Get the contract CODE

To obtain the contract CODE, please refer to the numerical order in Figure 7–1

Figure7–1

The CODE code composition of the entire storage.sol contract: 0x+”object” (object is the actual data in Figure 1–1)
In the window opened above, the CODE code of GetInt() is 0x55551669, and the CODE code of SetInt() is 0x853b2d29

Release contract

{"jsonrpc":"2.0","method":"eth_sendTransaction","params":
[{"from":"0xF60a4716edAbDc1479C9b2562989a9cA106063dA","gas":"0x100000","gasPrice":"0x9184e72a","data":"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"}],
"id":1
}
result：
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": "0x2ea05c409a972809c2633228650fad1cc6213e11300b2b4d352e4abfe05e853e"
}

Query contract address

{"jsonrpc":"2.0","method":"eth_getTransactionReceipt","params":["0x2ea05c409a972809c2633228650fad1cc6213e11300b2b4d352e4abfe05e853e"],"id":1}
：
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "blockHash": "0xed15aebf9661bd132c1851efb71008fdb3aebf58163cfb7c1003b9920f2ba04e",
        "blockNumber": "0x31d5",
        "contractAddress": "0x506fb30eeac47da87503a0c12223c9482b06891e",
        "cumulativeGasUsed": null,
        "from": "0xf60a4716edabdc1479c9b2562989a9ca106063da",
        "gasUsed": "0x20180",
        "logs": null,
        "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
        "status": "0x1",
        "to": null,
        "transactionHash": "0x2ea05c409a972809c2633228650fad1cc6213e11300b2b4d352e4abfe05e853e",
        "transactionIndex": "0x0"
    }
}

Modify the contract

{"jsonrpc":"2.0","method":"eth_sendTransaction","params":
[{
        "from":"0xF60a4716edAbDc1479C9b2562989a9cA106063dA",
        "to":"0x506fb30eeac47da87503a0c12223c9482b06891e",
        "gas":"0x10000",
        "gasPrice":"0x9184e72a",
        "data":"0x853b2d290000000000000000000000000000000000000000000000000000000000009855"
    }],
        "id":1
}
result：
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": "0xd0ec57fe80bdcc8a90bec6115e6820e970b5691604c1427ff2015b1fd7462b63"
}

Query the result cf “Modify Contract”

{"jsonrpc":"2.0","method":"eth_call","params":
    [{
    "from":"0xF60a4716edAbDc1479C9b2562989a9cA106063dA",
    "to":"0x506fb30eeac47da87503a0c12223c9482b06891e",
    "gas":"0x10000",
    "gasPrice":"0x9184e72a",
    "data":"0x55551669" 
    },
    "latest"
    ],
    "id":1
}
result：
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": "0x0000000000000000000000000000000000000000000000000000000000009855"
}

For more information: caduceus.foundation / info@caduceus.foundation