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Process API List

VeChain
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Overview

Process API can help you import data into a specific DCP through the form of interface docking. By adding the corresponding request parameters to the request according to the interface instructions, the system will return the processing results after the call. The request and response are encoded using the UTF-8 character set.

API Description
v2/process/create Create DCP Data
v2/process/update Update DCP data
v2/process/detail Query the latest DCP data
v2/process/fullDetail Get multilingual DCP data
v2/process/getList Query DCP data list
v2/attachment/upload Upload attachment
v2/attachment/{fileHash} Download attachment
v2/vid/generate Generate tag VID in batches
v2/vid/occupy Register tag VID in batches
v2/provenance/hash/query Query the latest on-chain information
v2/provenance/hash/queryHistory Query historical on-chain information

  • Create DCP data

    POST v2/process/create

Create DCP data. The interface has idempotent property, which is determined by the field of requestNo. If the field of requestNo is different, it will be treated as a new request. When calling this interface, you need to ensure that the operator has the create permission. For how to assign permissions, please refer to here. For permission comparison instructions, please refer to here. When orderStatus is FAILURE, developers need to add compensation mechanism. When the orderStatus is SUCCESS, you need to use the dataUUID or dataVID in the returned result to call Query the latest DCP data. The dcpStatus field in DCP details determines whether the call is successful. When the dcpStatus field is "SUCCESS",  it indicates that the call is successful. Otherwise, the call fails, and a compensation mechanism needs to be added. When uploading hash data(DCP type = DCP hash), please make sure the hash value(field: base.datalist.data) is hex string(sha256) , the length of which is 32 bytes.

Request Parameters

Name Type Required Description
dcpInstanceUUID string Y DCP UUID, please refer to here
+ defaultLangDCPValue DcpValueInfo Y DCP data in default language
└ bizLanguage string N default language, use the default language of process if not set. For language types, please refer to here
└ dataValue object(json) Y DCP detailed data, please refer to here
+ otherLangDCPValue array（DcpValueInfo） N DCP data collection in other languages
└ bizLanguage string Y language, please refer to here
└ dataValue object(json) Y DCP detailed data, please refer to here
projectUUID string Y project ID, please refer to here
toolchainOperatorUUID string Y operator ID, please refer to here
requestNo string Y request number, length is no more than 50, only letters and numbers are allowed
smartcontractId string N smart contrat address
submitStatus string Y submit status（DRAFT,SUBMIT), DRAFT can be updated to SUBMIT

Request Example

{
    "requestNo": "123456789022223",
    "submitStatus": "SUBMIT",
    "defaultLangDCPValue":
    {
        "bizLanguage": "zh-CN",
        "dataValue":
        {
            "base":
            {
                "skucode": "SKU Operation B",
                "productname": "English 22223",
                "mainimage":
                {
                    "filetype": "jpg",
                    "filelocation": "/resource/7a9c83bf70ee49e67dff864fc2762a18ea659c85b2038679787f3f52795a19b7",
                    "filename": "abc.jpg",
                    "filesize": "12990",
                    "filehash": "7a9c83bf70ee49e67dff864fc2762a18ea659c85b2038679787f3f52795a19b7"
                },
                "description": "VEBOOK",
                "productparames": [
                {
                    "key": "Number",
                    "value": "2019 No.1"
                }],
                "files": [
                {
                    "filetype": "pdf",
                    "filelocation": "/resource/4244162a1f4eeb27d98805d8ad3722a6eb093fb4613d9ab7f4bac2b50ad07115",
                    "filename": "111.pdf",
                    "filesize": "102558",
                    "filehash": "4244162a1f4eeb27d98805d8ad3722a6eb093fb4613d9ab7f4bac2b50ad07115"
                }],
                "timestamp": 0
            },
            "custom":
            {}
        }
    },
    "smartcontractId": "",
    "dcpInstanceUUID": "10516100-e593-4bf5-806f-048401200000",
    "projectUUID": "15664C28-F375-61C2-1146-934D59400001",
    "toolchainOperatorUUID": "0xde7f8974f9fe41b5b4f48350594d345fcda9a74a0c00e4b52cd4720b08f5bf44"
}

Response Example

{
    "code": "common.success",
    "data":
    {
        "dataUUID": "10516100-a73d-4e5b-99c3-22f702200000",
        "dataVID": "0x9e39633d001592838332e6c0ddfa343b13ff69a8770e36b76a9c3800340a646a",
        "orderStatus": "SUCCESS",
        "requestNo": "123456789022223"
    }
}

Response Parameters

Name Type Description
dataUUID string data UUID, which can be used as input parameter when call update DCP data and query the latest DCP data
dataVID string data VID of on-chain information, return null if this DCP is not sent to blockchain. It can be used as input parameter when query the latest DCP data
requestNo string request number
orderStatus string

request status(INIT,PROCESSING,SUCCESS,FAILURE), for more details, please refer to here

  • Update DCP data

    POST v2/process/update

Update DCP data. The interface has idempotent property, which is determined by the field of requestNo. If the field of requestNo is different, it will be treated as a new request. When calling this interface, you need to ensure that the operator has the create permission. For how to assign permissions, please refer to here. For permission comparison instructions, please refer to here. When orderStatus is FAILURE, developers need to add compensation mechanism. When the orderStatus is SUCCESS, you need to use the dataUUID or dataVID in the returned result to call Query the latest DCP data. The dcpStatus field in DCP details determines whether the call is successful. When the dcpStatus field is "SUCCESS",  it indicates that the call is successful. Otherwise, the call fails, and a compensation mechanism needs to be added. When uploading hash data(DCP type = DCP hash), please make sure the hash value(field: base.datalist.data) is hex string(sha256) , the length of which is 32 bytes.

Request Parameters

Name Type Required Description
dataUUID string Y data UUID, which is from the response of create DCP data api.
dcpInstanceUUID string Y DCP UUID, please refer to here
+ defaultLangDCPValue DcpValueInfo Y DCP data in default language
└ bizLanguage string N default language, use the default language of process if not set. For language types, please refer to here
└ dataValue object(json) Y DCP detailed data, please refer to here
+ otherLangDCPValue array（DcpValueInfo） N DCP data collection in other languages
└ bizLanguage string Y language, please refer to here
└ dataValue object(json) Y DCP detailed data, please refer to here
projectUUID string Y project ID, please refer to here
toolchainOperatorUUID string Y operator ID, please refer to here
requestNo string Y request number, length is no more than 50, only letters and numbers are allowed
smartcontractId string N smart contract address
submitStatus string Y submit status（DRAFT,SUBMIT), DRAFT can be updated to SUBMIT

Request Example

{
    "dataUUID": "11000200-c7e3-43ac-bc11-70f302200015",
    "dcpInstanceUUID": "11000200-7b66-42bf-a5d4-2fae01200015",
    "defaultLangDCPValue":
    {
        "dataValue":
        {
            "custom":
            {},
            "base":
            {
                "datalist": [
                {
                    "data": "3f357fb5638cc7169d2e48e8dff83f618bcd7b6c46ffb5e008134f6cc15be8fc",
                    "vidlist":
                    {
                        "type": 0,
                        "vidlist": ["0X912139A4001592476415F237CBDC72D08BED2039F47991DEED48C3E4176E8748", "0X912139A4001592476415AFF22CCEADA5B952FCEDE5E5B8E808A86D6FD0502072", "0X912139A40015924764157C5B5CCF46DA4E795A36849D6F3F71A364BDEAFF901A"]
                    }
                }],
                "name": "dcp hash name1592476426064"
            }
        }
    },
    "projectUUID": "15600000-0000-3B95-A485-00205DF934B3",
    "requestNo": "1592476523177",
    "submitStatus": "SUBMIT",
    "toolchainOperatorUUID": "0x733a4d5427d06e8a9d6d25679df8c9a12df9ed5f459abff1f5d9b22ea5691ff6"
}

Response Example

{
    "code": "common.success",
    "data":
    {
        "dataUUID": "11000200-c7e3-43ac-bc11-70f302200015",
        "orderStatus": "SUCCESS",
        "requestNo": "1592476523177"
    }
}

Response Parameters

Name Type Description
dataUUID string data UUID, which can be used as input parameter when call update DCP data and query the latest DCP data
dataVID string data VID of on-chain information, return null if this DCP is not sent to blockchain. It can be used as input parameter when call query the latest DCP data
requestNo string request number
orderStatus string request status(INIT,PROCESSING,SUCCESS,FAILURE), for more details, please refer to here

  • Query the latest DCP data

    POST v2/process/detail

Query the results after creating or updating DCP data. For permission comparison instructions, please refer to here

Request Parameters

Name Type Required Description
dataUUID string N data UUID, which is from the response of create DCP data . At least one of dataUUID and dataVID needs to be passed in
dataVID string N data VID, which is from the response of create DCP data . At least one of dataUUID and dataVID needs to be passed in
dcpInstanceUUID string Y DCP UUID, please refer to here
projectUUID string Y project ID, please refer to here
toolchainOperatorUUID string Y operator ID, please refer to here
bizLanguage string N language type, return the DCP information of the default language if not set

Request Example

{
    "dataUUID": "11000200-882f-4a91-9865-e4c802200015",
    "dcpInstanceUUID": "11000200-7b66-42bf-a5d4-2fae01200015",
    "projectUUID": "15600000-0000-3B95-A485-00205DF934B3",
    "toolchainOperatorUUID": "0x733a4d5427d06e8a9d6d25679df8c9a12df9ed5f459abff1f5d9b22ea5691ff6"
}

Response Example

{
    "code": "common.success",
    "data":
    {
        "dcpBasicInfo":
        {
            "blockChainStatus": "NO",
            "createTime": 1592534751000,
            "creator": "hm_operator",
            "languageList": ["en"],
            "modifier": "hm_operator",
            "toolchainOperatorUUID": "0x733a4d5427d06e8a9d6d25679df8c9a12df9ed5f459abff1f5d9b22ea5691ff6",
            "updateTime": 1592534791000,
            "verificationStatus": "PROCESSING"
        },
        "dcpBlockchainInfo":
        {
            "dataHash": "2ecc08d1c6b2f243a9074818c857ab1f2e43485de86cb608c4877ce9eafdc090",
            "dataUUID": "11000200-882f-4a91-9865-e4c802200015"
        },
        "dcpDataInfo":
        {
            "bizLanguage": "en",
            "dataUUID": "11000200-882f-4a91-9865-e4c802200015",
            "dcpDataInfo":
            {
                "custom":
                {},
                "base":
                {
                    "datalist": [
                    {
                        "data": "d4ddcbbe0479b24a8e90ead9ba2e4a5d6722b95d90937da5e9698e81b69d4e6e",
                        "vidlist":
                        {
                            "type": 0,
                            "vidlist": ["0X912139A4001592534739A1791A06626E9B80E4ABCFEC97E2D8336669EEAF7B1F", "0X912139A4001592534739BDBAD8DC22F9866776A29463E1577EA1DBA30DEC0B70", "0X912139A4001592534739C36E6FADAABC3B877E106631086116EBB894F5471CF0"]
                        }
                    }],
                    "name": "dcp hash name1592534749410",
                    "timestamp": 1592534790876
                }
            },
            "dcpInstanceUUID": "11000200-7b66-42bf-a5d4-2fae01200015",
            "name": "dcp hash name1592534749410",
            "submitStatus": "SUBMIT",
            "version": "V11.0"
        },
        "dcpVerificatonInfo":
        {}
    }
}

Response Parameters

Name Type Description
+ dcpBasicInfo DCPBasicInfoBrief DCP basic information
└ blockChainStatus string on-chain status（PROCESSING,SUCCESS,NO),‘NO’ means no blockchain information
└ createTime integer create time
└ creator string operators who create DCP data
└ languageList array(string) types of submitted languages
└ modifier string operators who create or update DCP data
└ toolchainOperatorUUID string operator id who create or update DCP data
└ updateTime integer update time
└ verificationStatus string verification status（PROCESSING,SUCCESS,NO),’NO’ means no verification information
└ dcpStatus string DCP status（PROCESSING，SUCCESS）
+ dcpBlockchainInfo DCPBlockChainInfoBrief DCP on-chain information
└ clauseIndex integer clause index of this blockchain transaction
└ dataHash string hash value of this blockchain transaction
└ dataUUID string data UUID
└ dataVID string data VID
└ txId string blockchain transaction ID
+ dcpDataInfo DCPDataInfoBrief DCP data information
└ bizLanguage string language
└ dataUUID string data UUID
└ dcpDataInfo object(json) DCP data information
└ dcpInstanceUUID string DCP UUID
└ name string DCP record name when creating or updating DCP data（ex: sku name)
└ submitStatus string submit status of DCP data
└ version string DCP version when creating or updating DCP data
+ dcpVerificatonInfo DCPVerificationInfoBrief DCP verification information
└ auditor string auditor when creating or updating DCP data
└ clauseIndex string clause index of the blockchain transaction of the verification
└ verificationDataHash string data hash of verification when creating or updating DCP data
└ verificationDataUUID string data UUID of verification when creating or updating DCP data
└ verificationDataVid string data VID of verification when creating or updating DCP data
└ verificationResult string verification result when creating or updating DCP data
└ verificationTime integer verification time when creating or updating DCP data
└ verificationTxId string blockchain transaction ID of verification when creating or updating DCP data

  • Get multilingual DCP data

    POST v2/process/fullDetail

Query the multilingual results after creating or updating DCP data. For permission comparison instructions, please refer to here

Request Parameters

Name Type Required Description
dataUUID string N data UUID, which is from the response of create DCP data . At least one of dataUUID and dataVID needs to be passed in
dataVID string N data VID, which is from the response of create DCP data . At least one of dataUUID and dataVID needs to be passed in
dcpInstanceUUID string Y DCP UUID, please refer to here
projectUUID string Y project ID, please refer to here
toolchainOperatorUUID string Y operator ID, please refer to here

Request Example

{
    "dataUUID": "00000000-5bae-4f67-bb45-3e9302200000",
    "dataVID": "",
    "dcpInstanceUUID": "10000700-669b-4d15-90d3-86f801200000",
    "projectUUID": "15641F67-F2B0-7709-FD20-DD022E400001",
    "toolchainOperatorUUID": "0x2cdbcc10a1376a72ad10ae046773e8ec0b1d38e1d1671c1804dcfc82715b8b53"
}

Response Example

{
    "code": "common.success",
    "data": {
        "dcpBasicInfo": {
            "creator": "training",
            "createTime": 1618475762000,
            "modifier": "training",
            "updateTime": 1623826809000,
            "languageList": [
                "en",
                "zh-CN"
            ],
            "dcpStatus": "SUCCESS"
        },
        "dcpDataInfo": {
            "dcpInstanceUUID": "10000700-669b-4d15-90d3-86f801200000",
            "dataUUID": "00000000-5bae-4f67-bb45-3e9302200000",
            "name": "Black pig",
            "dcpDataInfo": {
                "data": {
                    "dcpreferences": [],
                    "custom": {},
                    "base": {
                        "mainimage": {
                            "filelocation": "/resource/2c81253ce3a271d74e4a316e7aa3708de8b56eae41cb226a61f29b854559f1cd",
                            "filetype": "jpeg",
                            "filename": "blackpig.jpeg",
                            "filesize": "342313",
                            "filehash": "2c81253ce3a271d74e4a316e7aa3708de8b56eae41cb226a61f29b854559f1cd"
                        },
                        "skucode": "Pig00001",
                        "productname": "Black pig",
                        "description": "Pigs have been domesticated for nearly 5000 years in China. The Jiuchong Tianbao Longyan site in Shungeng area of the southern mountain area of Jinan and the tuhe River Basin in Jiyang today are important heritage sites of animal husbandry in ancient times.",
                        "files": [
                            {
                                "filelocation": "/resource/355f1ec4be38faeee2a8b8c4fd826ba25b65e606cc797b99c0a8ca9160ea8897",
                                "filetype": "pdf",
                                "filename": "black pig introduction.pdf",
                                "filesize": "23678",
                                "filehash": "355f1ec4be38faeee2a8b8c4fd826ba25b65e606cc797b99c0a8ca9160ea8897"
                            }
                        ],
                        "productparames": [
                            {
                                "value": "50KG",
                                "key": "Weight"
                            },
                            {
                                "value": "Black",
                                "key": "breed"
                            }
                        ],
                        "timestamp": 1623826808629
                    }
                },
                "language": [
                    {
                        "zh-CN": {
                            "custom": {},
                            "base": {
                                "mainimage": {
                                    "filelocation": "/resource/2c81253ce3a271d74e4a316e7aa3708de8b56eae41cb226a61f29b854559f1cd",
                                    "filetype": "jpeg",
                                    "filename": "黑猪.jpeg",
                                    "filesize": "342313",
                                    "filehash": "2c81253ce3a271d74e4a316e7aa3708de8b56eae41cb226a61f29b854559f1cd"
                                },
                                "skucode": "Pig00001",
                                "productname": "正宗的黑猪",
                                "description": "黑猪在中国已有近五千年驯养史，济南南部山区舜耕一带的九重天豢龙岩遗址和今济阳徒河流域都是上古畜牧业养殖的重要传承地。",
                                "files": [
                                    {
                                        "filelocation": "/resource/355f1ec4be38faeee2a8b8c4fd826ba25b65e606cc797b99c0a8ca9160ea8897",
                                        "filetype": "pdf",
                                        "filename": "黑猪的介绍.pdf",
                                        "filesize": "23678",
                                        "filehash": "355f1ec4be38faeee2a8b8c4fd826ba25b65e606cc797b99c0a8ca9160ea8897"
                                    }
                                ],
                                "productparames": [
                                    {
                                        "value": "50KG",
                                        "key": "重量"
                                    },
                                    {
                                        "key": "品种"
                                    }
                                ],
                                "timestamp": 1623826808629
                            }
                        }
                    }
                ]
            },
            "version": "V1.0",
            "submitStatus": "DRAFT",
            "bizLanguage": "en"
        },
        "dcpBlockchainInfo": {
            "dataHash": "bd4cef63535633ddf00edc05f163d44680c81455e3fb1122e3fb4587bb8c9e3f",
            "dataUUID": "00000000-5bae-4f67-bb45-3e9302200000"
        }
    }
}

Response Parameters

Name Type Description
+ dcpBasicInfo DCPBasicInfoBrief DCP basic information
└ blockChainStatus string on-chain status（PROCESSING,SUCCESS,NO),‘NO’ means no blockchain information
└ createTime integer create time
└ creator string operators who create DCP data
└ languageList array(string) types of submitted languages
└ modifier string operators who create or update DCP data
└ toolchainOperatorUUID string operator id who create or update DCP data
└ updateTime integer update time
└ verificationStatus string verification status（PROCESSING,SUCCESS,NO),’NO’ means no verification information
└ dcpStatus string DCP status（PROCESSING，SUCCESS）
+ dcpBlockchainInfo DCPBlockChainInfoBrief DCP on-chain information
└ clauseIndex integer clause index of this blockchain transaction
└ dataHash string hash value of this blockchain transaction
└ dataUUID string data UUID
└ dataVID string data VID
└ txId string blockchain transaction ID
+ dcpDataInfo DCPDataInfoBrief DCP data information
└ bizLanguage string language
└ dataUUID string data UUID
└ dcpDataInfo object(json) DCP data information
└ dcpInstanceUUID string DCP UUID
└ name string DCP record name when creating or updating DCP data（ex: sku name)
└ submitStatus string submit status of DCP data
└ version string DCP version when creating or updating DCP data
+ dcpVerificatonInfo DCPVerificationInfoBrief DCP verification information
└ auditor string auditor when creating or updating DCP data
└ clauseIndex string clause index of the blockchain transaction of the verification
└ verificationDataHash string data hash of verification when creating or updating DCP data
└ verificationDataUUID string data UUID of verification when creating or updating DCP data
└ verificationDataVid string data VID of verification when creating or updating DCP data
└ verificationResult string verification result when creating or updating DCP data
└ verificationTime integer verification time when creating or updating DCP data
└ verificationTxId string blockchain transaction ID of verification when creating or updating DCP data

  • Query DCP data list

    POST v2/process/getList

Query the DCP list and return the results in reverse order of creation time. This interface is implemented by the logic of page turning query. For example, if you need to query the latest 120 pieces of data on the chain, you can use page=1, size=100 and page=2, size=100 to request the interface respectively, and get the first 20 pieces of data in the second request. Similarly, you can also use page=1, size=60 and page=2, size=60 to request the interface to obtain data twice. If you want to further check the details, please use the query latest DCP data interface to query, currently only supports querying the latest updated record. For permission comparison instructions, please refer to here

Request Parameters

Name Type Required Description
dcpInstanceUUID string Y DCP UUID, please refer to here
dcpName string N DCP record name when creating or updating DCP data（ex: sku name)
startTime long N filter the start time of DCP data based on the UTC time (accurate to milliseconds) of the update time
endTime long N filter the end time of DCP data based on the UTC time (accurate to milliseconds) of the update time
page integer Y page number, ex: page 3
size integer Y row number displayed per page, up to 100
submitStatus string N submit status（DRAFT,SUBMIT）
projectUUID string Y project ID, please refer to here
toolchainOperatorUUID string Y operator ID, please refer to here

Request Example

{
    "dcpInstanceUUID": "11000200-7b66-42bf-a5d4-2fae01200015",
    "page": 1,
    "projectUUID": "15600000-0000-3B95-A485-00205DF934B3",
    "size": 10,
    "toolchainOperatorUUID": "0x733a4d5427d06e8a9d6d25679df8c9a12df9ed5f459abff1f5d9b22ea5691ff6"
}

Response Example

{
    "code": "common.success",
    "data":
    {
        "exist": true,
        "list": [
        {
            "blockChainStatus": "NO",
            "createTime": 1592534846000,
            "creator": "hm_operator",
            "dataUUID": "11000200-96f3-4fc9-b0e6-3b3a02200015",
            "dcpInstanceUUID": "11000200-7b66-42bf-a5d4-2fae01200015",
            "dcpName": "dcp hash name1592534749410",
            "dcpType": "DCPHASH",
            "modifier": "hm_operator",
            "requestNo": "a41ea950-01e3-4e2f-acb2-6128e46d3079",
            "submitStatus": "SUBMIT",
            "updateTime": 1592534881000,
            "verificationStatus": "PROCESSING",
            "dcpStatus": "SUCCESS",
            "version": "V11.0"
        },
        {
            "blockChainStatus": "NO",
            "createTime": 1592534751000,
            "creator": "hm_operator",
            "dataUUID": "11000200-882f-4a91-9865-e4c802200015",
            "dcpInstanceUUID": "11000200-7b66-42bf-a5d4-2fae01200015",
            "dcpName": "dcp hash name1592534749410",
            "dcpType": "DCPHASH",
            "modifier": "hm_operator",
            "requestNo": "11533e83-131f-4f0b-8702-851e2b7a5174",
            "submitStatus": "SUBMIT",
            "updateTime": 1592534791000,
            "verificationStatus": "PROCESSING",
            "dcpStatus": "SUCCESS",
            "version": "V11.0"
        },
        {
            "blockChainStatus": "NO",
            "createTime": 1592534426000,
            "creator": "hm_operator",
            "dataUUID": "11000200-bcb4-46c5-b5fc-eedf02200015",
            "dcpInstanceUUID": "11000200-7b66-42bf-a5d4-2fae01200015",
            "dcpName": "dcp hash name1592534276633",
            "dcpType": "DCPHASH",
            "modifier": "hm_operator",
            "requestNo": "0806e053-865f-463e-b546-8f0dcc085605",
            "submitStatus": "SUBMIT",
            "updateTime": 1592534462000,
            "verificationStatus": "PROCESSING",
            "dcpStatus": "SUCCESS",
            "version": "V11.0"
        },
        {
            "blockChainStatus": "NO",
            "createTime": 1592534279000,
            "creator": "hm_operator",
            "dataUUID": "11000200-9b22-487f-b090-52ba02200015",
            "dcpInstanceUUID": "11000200-7b66-42bf-a5d4-2fae01200015",
            "dcpName": "dcp hash name1592534276633",
            "dcpType": "DCPHASH",
            "modifier": "hm_operator",
            "requestNo": "bc545873-3ae7-45a3-bee5-abdd1f03db83",
            "submitStatus": "SUBMIT",
            "updateTime": 1592534312000,
            "verificationStatus": "PROCESSING",
            "dcpStatus": "SUCCESS",
            "version": "V11.0"
        },
        {
            "blockChainStatus": "NO",
            "createTime": 1592476524000,
            "creator": "hm_operator",
            "dataUUID": "11000200-2143-4ef1-9ae1-ee4102200015",
            "dcpInstanceUUID": "11000200-7b66-42bf-a5d4-2fae01200015",
            "dcpName": "dcp hash name1592476426064",
            "dcpType": "DCPHASH",
            "modifier": "hm_operator",
            "requestNo": "15881c21-6a48-4201-afa5-cba4d39bacbb",
            "submitStatus": "SUBMIT",
            "updateTime": 1592476562000,
            "verificationStatus": "PROCESSING",
            "dcpStatus": "SUCCESS",
            "version": "V11.0"
        },
        {
            "blockChainStatus": "NO",
            "createTime": 1592476428000,
            "creator": "hm_operator",
            "dataUUID": "11000200-c7e3-43ac-bc11-70f302200015",
            "dcpInstanceUUID": "11000200-7b66-42bf-a5d4-2fae01200015",
            "dcpName": "dcp hash name1592476426064",
            "dcpType": "DCPHASH",
            "modifier": "hm_operator",
            "requestNo": "468e7074-e8e3-4cde-9da2-a6e0c83f5c8e",
            "submitStatus": "SUBMIT",
            "updateTime": 1592476442000,
            "verificationStatus": "PROCESSING",
            "dcpStatus": "SUCCESS",
            "version": "V11.0"
        },
        {
            "blockChainStatus": "NO",
            "createTime": 1592364953000,
            "creator": "hm_operator",
            "dataUUID": "11000200-0274-4029-acfb-104502200015",
            "dcpInstanceUUID": "11000200-7b66-42bf-a5d4-2fae01200015",
            "dcpName": "哈希上链测试",
            "dcpType": "DCPHASH",
            "modifier": "hm_operator",
            "requestNo": "fa385820-942b-4aa6-9367-0e8c71e7e707",
            "submitStatus": "SUBMIT",
            "updateTime": 1592364991000,
            "verificationStatus": "PROCESSING",
            "dcpStatus": "SUCCESS",
            "version": "V11.0"
        },
        {
            "blockChainStatus": "NO",
            "createTime": 1592314825000,
            "creator": "hm_operator",
            "dataUUID": "11000200-6350-4788-a011-3a3b02200015",
            "dcpInstanceUUID": "11000200-7b66-42bf-a5d4-2fae01200015",
            "dcpName": "dcp hash name1592314695855",
            "dcpType": "DCPHASH",
            "modifier": "hm_operator",
            "requestNo": "56afe14d-3c3c-45a8-9aa8-a5c813a5bc3d",
            "submitStatus": "SUBMIT",
            "updateTime": 1592314861000,
            "verificationStatus": "PROCESSING",
            "dcpStatus": "SUCCESS",
            "version": "V11.0"
        },
        {
            "blockChainStatus": "NO",
            "createTime": 1592314697000,
            "creator": "hm_operator",
            "dataUUID": "11000200-12b4-417c-a903-20dc02200015",
            "dcpInstanceUUID": "11000200-7b66-42bf-a5d4-2fae01200015",
            "dcpName": "dcp hash name1592314695855",
            "dcpType": "DCPHASH",
            "modifier": "hm_operator",
            "requestNo": "e612d10b-34d6-4e3e-9864-656d4b7901fc",
            "submitStatus": "SUBMIT",
            "updateTime": 1592314741000,
            "verificationStatus": "PROCESSING",
            "dcpStatus": "SUCCESS",
            "version": "V11.0"
        },
        {
            "blockChainStatus": "NO",
            "createTime": 1592310086000,
            "creator": "hm_operator",
            "dataUUID": "11000200-4138-45c7-9ff4-674b02200015",
            "dcpInstanceUUID": "11000200-7b66-42bf-a5d4-2fae01200015",
            "dcpName": "dcp hash name1592309967122",
            "dcpType": "DCPHASH",
            "modifier": "hm_operator",
            "requestNo": "a04330cd-2851-40e2-b15f-fa7be2306254",
            "submitStatus": "SUBMIT",
            "updateTime": 1592310121000,
            "verificationStatus": "PROCESSING",
            "dcpStatus": "SUCCESS",
            "version": "V11.0"
        }],
        "page": 1,
        "rows": 29,
        "size": 10
    }
}

Response Parameters

Name Type Description
exist boolean if data exist
size int row number displayed per page
page int page number
rows int total rows
+ list array(DataPointListInfoBrief) collection of DCP data information
└ blockChainStatus string on-chain status（PROCESSING,SUCCESS,NO),‘NO’ means no blockchain information
└ createTime integer create time
└ creator string operators who create DCP data
└ dataUUID string data UUID when creating or updating DCP data
└ dcpInstanceUUID string DCP UUID when creating or updating DCP data
└ updateTime integer update time
└ dcpName string DCP record name when creating or updating DCP data（ex: sku name）
└ dcpType string DCP type when creating or updating DCP data
└ modifier integer operators who modify DCP data
└ requestNo string request number when creating or updating DCP data
└ submitStatus string submit status when creating or updating DCP data
└ verificationStatus string verification status（PROCESSING,SUCCESS,NO),’NO’ means no verification information
└ dcpStatus string DCP status（PROCESSING，SUCCESS）
└ version string DCP version when creating or updating DCP data

  • Upload attachment

    POST v2/attachment/upload

upload static resources. please record the return fields filetype, filelocation, filename, filesize, filehash, which are needed when assembling DCP data. When sending a request, please use multipart/form-data for Body's content-type. Please ensure that the size of the resource is within the range allowed by the DCP data format, such as <=3000bytes. 
Postman settings are as follows:
POSTMAN_FILE.png

Supported media types are as follows:

Media type File format Size
data ["json"] 1MB
image ["jpeg","jpg","png","jpe","ico","gif"] 10MB
vedio ["mp4","3gp","avi","m3u8","mp3","rmvb"] 30MB
file ["xls","csv","doc","xlsx","txt","docx","md","wps","ppt","pptx","pdf"] 30MB
zip ["zip"] 30MB

Request Parameters

Name Type Required Description
file File Y the local path of static resources, temporarily does not support http(s) links

Curl Request Example


curl --location --request POST 'https://developer.vetoolchain.com/api/v2/attachment/upload' \
--header 'Content-Type: application/json;charset=utf-8' \
--header 'x-api-token: eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJsb2dpbklkIjoiNWIwMWE5MmIzOGI3IiwiYXBwSWQiOiJhODJiN2I5MGNmMDE0ZDFhMDk5YzEzOTdmMzA5NzZiYyIsInNvdXJjZSI6ImFhYSIsImV4cCI6MTU5MzM0MDM5NCwiaWF0IjoxNTkzMjUzOTk0fQ.OcVyoPx9a4VAbLHAY4MYdDlRJpHnzChToMnXNZeIr-s' \
--form 'file=@/Users/junzhang/Desktop/WechatIMG95.jpeg'

Response Example

{
    "code": "common.success",
    "data":
    {
        "filehash": "56c9cbdb4fa51f2b247e0b4d6fbe4a6d1c6c7cecca2925b5b69d4e073e366ac4",
        "filelocation": "/resource/56c9cbdb4fa51f2b247e0b4d6fbe4a6d1c6c7cecca2925b5b69d4e073e366ac4",
        "filename": "jsonlist_cn.png",
        "filesize": 36632,
        "filetype": "png"
    }
}

Response Parameters

Name Type Description
filehash string hash value of resource
filelocation string file location of resource
filename string name of resource
filesize integer size of resource
filetype string media type of resource

  • Download attachment

    GET v2/attachment/{fileHash}

Download resources

Request Parameters

Name Type Required Description
fileHash string Y file hash returned by the interface after a successful upload

Curl Request Example


curl --location --request GET 'https://developer.vetoolchain.com/api/v2/attachment/e39549740cf40bc9c2ec82866efda33a7eeaba1e97e3dd3422289989b58bb28c' \
--header 'language: zh_hans' \
--header 'Content-Type: application/json;charset=utf-8' \
--header 'x-api-token: eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJsb2dpbklkIjoiNzliM2VjZTVkY2VkIiwiYXBwSWQiOiJhODJiN2I5MGNmMDE0ZDFhMDk5YzEzOTdmMzA5NzZiYyIsInNvdXJjZSI6ImFhYSIsImV4cCI6MTU5MzQyNjg1MiwiaWF0IjoxNTkzMzQwNDUyfQ.WJ0oQEoWV7kSagzSUbarzlrbKHwAJRaOh7GUaG8-1v0'

Response Example

Response Parameters

  • Generate tag VID in batches

    POST v2/vid/generate

Generate VID in batches, up to 2000 per request. The unique identifier of the request: requestNo, which is a random number generated by the requester, and the same identifier is treated as the same request.

Request Parameters

Name Type Required Description
quantity integer Y requested quantity, up to 2000
requestNo string Y request number, length is no more than 50, only letters and numbers are allowed

Request Example


{
    "quantity": 10,
    "requestNo": "20200607001"
}

Response Example


{
    "code": "common.success",
    "data": {
        "quantity": 10,
        "requestNo": "20200607001",
        "url": "https://v3-dev.vechaindev.com/v1/artifacts/",
        "vidList": [
            "0XEA1451450015915098673EB9A02518F5AFFC42592F92ED3399B7A661DF1313DF",
            "0XEA145145001591509867E59844F42B770406BD7C9BA1028D4C4BE39540B75A57",
            "0XEA145145001591509867E4833C21A5E5ED518EBB5688A1B74C3C7D9AE1CA7F90",
            "0XEA145145001591509867E52C417EA421C0E07D447B897BC571552470F62A1072",
            "0XEA1451450015915098676C150F3533D2EC5948854AEDA21E7F2AA98D4EEDF51C",
            "0XEA145145001591509867AC096082AEC0092DE7CC739C0227180CE96623C5E113",
            "0XEA14514500159150986744A63EA4315493AFF6AF828A6BACBE854B8E6A85466F",
            "0XEA14514500159150986702C02E1BDFF6F0B533C54B6F43D850F0F663CDD42133",
            "0XEA145145001591509867551158F2DCD1DFB6292D4185D98373E8ACA430E2547B",
            "0XEA14514500159150986738D8EB8957AD307F085977EB0A00A9586347BD710045"
        ],
        "status": "SUCCESS"
    }
}

Response Parameters

Name Type Description
quantity string requested quantity
requestNo string request number
url string VID access url
vidList array(string) list of successfully requested VIDs
status string request status(PROCESSING,SUCCESS)

  • Register tag VID in batches

    POST v2/vid/occupy

Register VID in batches, up to 100 per request. The unique identifier of the request: requestNo, which is a random number generated by the requester, and the same identifier is treated as the same request. This interface is usually used for customers to have their own specific code segment generation rules, ex: "0x202006FC01B101M666...", 202006 represents the production month, FC01 represents the code of the production plant, B101 represents the batch number, M666 represents the product model, etc.

Request Parameters

Name Type Required Description
vidList array(string) Y requested VID list, up to 100
requestNo string Y request number, length is no more than 50, only letters and numbers are allowed

Request Example

{
    "requestNo": "20200607002",
    "vidList": ["0XEA145145001591512024A585B1CAB44A74FE53692F4D69513A58BCA1CF5DCB22",
    "0XEA145145001591512024A585B1CAB44A74FE53692F4D69513A58BCA1CF5DCB23"
    ]
}

Response Example

{
    "code": "common.success",
    "data": {
        "failureList": [
            "0XEA145145001591512024A585B1CAB44A74FE53692F4D69513A58BCA1CF5DCB22"
        ],
        "successList": [
            "0XEA145145001591512024A585B1CAB44A74FE53692F4D69513A58BCA1CF5DCB23"
        ],
        "requestNo": "20200607002",
        "url": "https://v3-dev.vechaindev.com/v1/artifacts/",
        "status": "SUCCESS"
    }
}

Response Parameters

Name Type Description
failureList array(string) failure list
successList array(string) success list
url string VID access url
status string request status(PROCESSING,SUCCESS)
requestNo string request number

  • Query the latest on-chain information

    POST v2/provenance/hash/query

For DCPs with on-chain records, you can query the latest on-chain record by VID.

Request Parameters

Name Type Required Description
vid string Y VID, starting at '0x', 32 bytes
smartcontractId string N smart contract address

Request Example

{
    "vid": "0xea1451450015915120247ed1dd9f1dc44f8ab2d6a15618adc85c112391c2c886"
}

Response Example

{
    "code": "common.success",
    "data":
    {
        "clauseIndex": 1,
        "submitTime": 1591517456,
        "dataHash": "03042cf8100db386818cee4ff0f2972431a62ed78edbd09ac08accfabbefd819",
        "txId": "0x215804059e2ddc58261bbcbd31cbb09920773dca464d73efa998fdc24933a3b1"
    }
}

Response Parameters

Name Type Description
txId string blockchain transaction ID
dataHash string hash value , hex string
submitTime integer time of on-chain
clauseIndex integer clause index of this blockchain transaction ID

  • Query historical on-chain information

    POST v2/provenance/hash/queryHistory

For DCPs with on-chain records, you can query the historical on-chain record by VID. This interface is implemented by the logic of page turning query. For example, if you need to query the latest 120 pieces of data from the blockchain, you can use page=1, size=100, sort=desc and page=2, size=100, sort=desc to request the interface respectively, and get the first 20 pieces of data in the second request.. Similarly, you can also use page=1, size=60, sort=desc, and page=2, size=60, sort=desc to request the interface to obtain data twice.

Request Parameters

Name Type Required Description
vid string Y VID, starting at '0x', 32 bytes
page integer Y page number, ex: page 3
size integer Y row number displayed per page, up to 100
sort string Y blockchain on-chain time sorting (desc, asc)
smartcontractId string N smart contract address

Request Example

{
    "page": 1,
    "size": 10,
    "sort": "asc",
    "vid": "0xea1451450015915120247ed1dd9f1dc44f8ab2d6a15618adc85c112391c2c886"
}

Response Example

{
    "code": "common.success",
    "data": {
        "vid": "ea1451450015915120247ed1dd9f1dc44f8ab2d6a15618adc85c112391c2c886",
        "smartcontractId": "3f6e5cda7baa4004b911446cfca76191",
        "page": 1,
        "history": [
            {
                "clauseIndex": 0,
                "submitTime": 1591517456,
                "dataHash": "03042cf8100db386818cee4ff0f2972431a62ed78edbd09ac08accfabbefd818",
                "txId": "0x215804059e2ddc58261bbcbd31cbb09920773dca464d73efa998fdc24933a3b1"
            },
            {
                "clauseIndex": 1,
                "submitTime": 1591517456,
                "dataHash": "03042cf8100db386818cee4ff0f2972431a62ed78edbd09ac08accfabbefd819",
                "txId": "0x215804059e2ddc58261bbcbd31cbb09920773dca464d73efa998fdc24933a3b1"
            }
        ],
        "rows": 2
    }
}

Response Parameters

Name Type Description
+ history array(HashHistoryModel) collection of on-chain history
└ txId string blockchain transaction ID
└ dataHash string hash value, hex string
└ submitTime integer time of on-chain
└ clauseIndex integer clause index of this blockchain transaction ID
page integer page number
rows integer total rows
smartcontractId string smart contract address
vid string VID

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