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Deploy.md

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Deploy

Deploy represents a request from a user to perform computation on casper platform. It has the following information:

  • Deploy hash: the blake2b256 hash of the Header
  • Header: containing
    • the identity key of the account the deploy will run in
    • the timestamp when the deploy was created
    • a time to live, after which the deploy is expired and cannot be included in a block
    • the blake2b256 hash of the body
  • Body: containing payment code and session code
  • Approvals: the set of signatures which have signed the deploy hash, these are used in the account permissions model

Each deploy is an atomic piece of computation in the sense that, whatever effects a deploy would have on the global state must be entirely included in a block or the entire deploy must not be included in a block.

getHash(): array

Returns a deploy hash byte array

getHeader(): DeployHeader

Returns DeployHeader object

getPayment(): DeployExecutable

Returns DeployExecutable object that representing a deploy payment

isStandardPayment(): bool

Returns true if deploy payment is standard payment

getSession(): DeployExecutable

Returns DeployExecutable object that representing a deploy session

isTransfer(): bool

Returns true if a deploy session is transfer

getApprovals(): array

Return a list of DeployApproval objects

pushApproval(DeployApproval $approval): self

Push DeployApproval to deploy and returns self object

Parameters
Name Type Description Required
$approval DeployApproval DeployApproval object Yes

JSON Representation

Below is an example of a deploy JSON returned by node RPC API

{
    "hash": "c1234567894c930b5d181d7ad3ebb07ecd38d732d10c90ceef44de16d3ac8e1f",
    "header": {
        "account": "01112123456789880b663120990bada942107b8dd0f179a0d665310d4e527117a1",
        "timestamp": "2021-01-01T00:00:00.000Z",
        "ttl": "30m",
        "gas_price": 1,
        "body_hash": "cf3f31234567899c732a76dc7c519d474d42d80cbdbb7bef6d501fa2d80f9c95",
        "dependencies": [],
        "chain_name": "casper"
    },
    "payment": {
        "ModuleBytes": {
            "module_bytes": "",
            "args": [
                [
                    "amount",
                    {
                        "cl_type": "U512",
                        "bytes": "021027",
                        "parsed": "10000"
                    }
                ]
            ]
        }
    },
    "session": {
        "Transfer": {
            "args": [
                [
                    "amount",
                    {
                        "cl_type": "U512",
                        "bytes": "06f08096ef582d",
                        "parsed": "49859999990000"
                    }
                ],
                [
                    "target",
                    {
                        "cl_type": {
                            "ByteArray": 32
                        },
                        "bytes": "c62a112345678934b388cd3070a2039b315390ebe77fbf3b12e30c61470a17b9",
                        "parsed": "c62a1908e528c734b388cd3070a2039123456789e77fbf3b12e30c61470a17b9"
                    }
                ],
                [
                    "id",
                    {
                        "cl_type": {
                            "Option": "U64"
                        },
                        "bytes": "010100000000000000",
                        "parsed": 1
                    }
                ]
            ]
        }
    },
    "approvals": [
        {
            "signer": "011125a8ec21234567893120990bada942107b8dd0f179a0d665310d4e527117a1",
            "signature": "01041ccca62700ce75b55f123456789301444893c0a2f379950a8a942d91ec0ee14f00d0bcb38703a4908adcb3076757b5f88f6c54d491c9caa4a96f310f8b1408"
        }
    ]
}