Creando un schema
Hemos agregado nuestro primer miembro a la gobernanza, pero todavía hay más por completar, ya que no hemos definido la estructura de datos para rastrear sujetos de tipo Wine en este caso de uso.
Para avanzar en el tutorial, necesitamos definir una estructura de datos donde podamos almacenar información para cada botella de vino. En Kore, esta definición se realiza usando schemas, que nos permite especificar los campos, tipos de datos y relaciones que queremos almacenar, como el número de cosecha, tipo de uva, origen de la uva, certificación ecológica, etc.
Schema
Antes de continuar, es fundamental tener clara la información que queremos almacenar de cada botella de vino. Luego, procederemos a crear el esquema que represente esa información adecuadamente. A continuación se muestra el esquema que hemos creado:
- Número de cosecha
- Tipo de uva
- Origen de la uva
- Certificado que acredite si es ecológico o no
- Valores a cambiar en el evento de control de temperatura:
- Marca de tiempo del último cheque
- Valor que confirma si se ha cumplido la cadena de frío del vino.
 
El esquema debe definirse en formato Json Schema para que kore pueda interpretarlo correctamente. Aquí está el esquema en este formato:
Schema
Pincha para ver el Schema
{
    "id": "Wine",
    "description": "Representation of a bottle of wine",
    "type": "object",
    "properties": {
        "harvest": {
            "description": "Harvest number",
            "type": "integer"
        },
        "grape": {
            "description": "Type of grape",
            "type": ["string", "null"],
            "enum": ["CabernetSauvignon", "Chardonnay", "PinotNoir", null]
        },
        "origin": {
            "description": "Origin of the grape",
            "type": "string"
        },
        "organic_certified": {
            "description": "Certificate authenticating whether it is organic or not",
            "type": ["boolean", "null"]
        },
        "temperature_control": {
            "description": "Values to be changed in the temperature control event",
            "type": "object",
            "properties": {
                "last_check": {
                    "description": "Timestamp of last check",
                    "type": "number"
                },
                "temperature_ok": {
                    "description": "Value that corroborates whether the wine cold chain has been complied with",
                    "type": "boolean"
                }
            },
            "required": [ "last_check", "temperature_ok" ],
            "additionalProperties": false
        }
    },
    "required": [ "harvest", "grape", "origin", "organic_certified", "temperature_control" ],
    "additionalProperties": false
}
Contrato
Después de declarar nuestro esquema, el siguiente paso es crear el contrato ya que necesitamos una forma de actualizar los estados de los sujetos que declaramos. Por lo tanto, crearemos un pequeño proyecto para el desarrollo del contrato, tomando como referencia lo declarado en esta sección.
- 
Ejecute el siguiente comando: cargo new wine-contractEsto creará un proyecto Rust vacío con el nombre especificado, lo que dará como resultado la siguiente estructura: . ├── Cargo.toml └── src └── main.rs
- 
Necesitamos modificar el archivo Cargo.toml para incluir los contratos kore SDK así como el módulo serde, que manejará la serialización y deserialización de datos: [package] name = "wine-contract" version = "0.1.0" edition = "2021" [dependencies] serde = { version = "1.0.152", features = ["derive"] } kore-sc-rust = { git = "https://github.com/kore-ledger/kore-contract-sdk.git", branch = "main"}INFORMACIÓNDe ahora en adelante, todos los pasos numerados restantes se realizarán dentro del archivomain.rs.
- 
Agregue las dependencias necesarias al comienzo de nuestro archivo: use kore_sc_rust as sdk; use serde::{Deserialize, Serialize};
- 
A continuación, agregaremos las estructuras de datos que representarán nuestros sujetos Wine: #[derive(Serialize, Deserialize, Clone, PartialEq)] enum Grape { CabernetSauvignon, Chardonnay, PinotNoir, } #[derive(Serialize, Deserialize, Clone)] struct TemperatureControl { pub last_check: u32, pub temperature_ok: bool, } #[derive(Serialize, Deserialize, Clone)] struct State { pub harvest: u32, pub grape: Option<Grape>, pub origin: String, pub organic_certified: Option<bool>, pub temperature_control: TemperatureControl, }
- 
Ahora es el momento de definir los eventos de estado que se pueden desencadenar en nuestros sujetos tipo Wine, que son: - Init: Responsable de inicializar sólo aquellos sujetos que provienen de un estado de génesis.
- TemperatureControl: Encargado de realizar el control de temperatura.
- CertificaciónOrgánica: Responsable de modificar el estado de la certificación orgánica.
 El código agregado será: #[derive(Serialize, Deserialize)] enum StateEvent { Init { harvest: u32, grape: String, origin: String, }, TemperatureControl { temperature: f32, timestamp: u32, }, OrganicCertification { fertilizers_control: bool, pesticides_control: bool, analytics: bool, additional_info: String, }, }
- 
Agregue la función de entrada para el contrato, equivalente a la función main:#[no_mangle] pub unsafe fn main_function(state_ptr: i32, event_ptr: i32, is_owner: i32) -> u32 { sdk::execute_contract(state_ptr, event_ptr, is_owner, contract_logic) }PRECAUCIÓNEs importante que esta función siempre tenga el mismo nombre especificado aquí ya que es el identificador con el que el evaluador intentará ejecutarla, y dará como resultado un error si no la encuentra.
- 
Por último agregar la lógica de negocio que actuará en cada uno de los casos para los eventos de estado declarados anteriormente: Lógica del contratoPincha para ver la lógicaconst TEMPERATURE_RANGE: (f32, f32) = (10.0, 16.0); fn contract_logic( context: &sdk::Context<State, StateEvent>, contract_result: &mut sdk::ContractResult<State>, ) { let state = &mut contract_result.final_state; match &context.event { StateEvent::Init { harvest, grape, origin, } => { if context.is_owner && !check_subject_has_been_initiated(state) { let grape = match grape.as_str() { "CabernetSauvignon" => Some(Grape::CabernetSauvignon), "Chardonnay" => Some(Grape::Chardonnay), "PinotNoir" => Some(Grape::PinotNoir), _ => None, }; if grape.is_some() { state.harvest = *harvest; state.grape = grape; state.origin = origin.to_string(); contract_result.success = true; } } } StateEvent::TemperatureControl { temperature, timestamp, } => { if context.is_owner && check_subject_has_been_initiated(state) { if check_temperature_in_range(*temperature) && state.temperature_control.temperature_ok { state.temperature_control.last_check = *timestamp; } else { state.temperature_control.temperature_ok = false; state.temperature_control.last_check = *timestamp; } contract_result.success = true; } } StateEvent::OrganicCertification { fertilizers_control, pesticides_control, analytics, additional_info, } => { if check_subject_has_been_initiated(state) { match state.organic_certified { Some(organic_cerified) => { if organic_cerified && !check_is_organic( *fertilizers_control, *pesticides_control, *analytics, ) { state.organic_certified = Some(false); } } None => { if check_is_organic(*fertilizers_control, *pesticides_control, *analytics) { state.organic_certified = Some(true); } else { state.organic_certified = Some(false); } } } contract_result.success = true; } } } } fn check_subject_has_been_initiated(state: &State) -> bool { let initial_grape = match state.grape { Some(_) => false, None => true, }; if state.harvest == 0 && initial_grape && state.origin == format!("") { return false; } return true; } fn check_temperature_in_range(temperature: f32) -> bool { if temperature >= TEMPERATURE_RANGE.0 && temperature <= TEMPERATURE_RANGE.1 { return true; } return false; } fn check_is_organic(fertilizers_control: bool, pesticides_control: bool, analytics: bool) -> bool { if fertilizers_control && pesticides_control && analytics { return true; } return false; }PRECAUCIÓNEs imprescindible incluircontract_result.success = trueen aquellos puntos de la funcióncontract_logicdonde creemos que la ejecución ha sido exitosa. De lo contrario, al emitir los eventos, siempre terminarán con el estado"success" = false.
kore sólo admite contratos en Base64, por lo que necesitaremos transformar el nuestro a ese formato. Para ello, Linux tiene su propia utilidad llamada base64. Por lo tanto, lo que debemos hacer en nuestro archivo main.rs es:
base64 main.rs
El resultado devuelto será el contrato codificado en base64.
Volvemos a la red kore
Una vez que hayamos declarado tanto el esquema como el contrato, es necesario emitir un evento Fact a la gobernanza para agregar esta nueva información.
Comencemos verificando los cambios que queremos realizar en las propiedades de gobernanza. En este punto, nuestra gobernanza debería verse así:
{
    "policies": [
        {
            "approve": {
                "quorum": "MAJORITY"
            },
            "evaluate": {
                "quorum": "MAJORITY"
            },
            "id": "governance",
            "validate": {
                "quorum": "MAJORITY"
            }
        }
    ],
    "schemas": []
}
Ahora, necesitamos incluir el esquema, el contrato,el génesis estado de un sujeto, así como las políticas que se le aplicarán:
Añadiendo el contrato a la gobernanza
Pincha para ver la gobernanza
{
    "policies": [
        ...
        {
            "approve": {
                "quorum": "MAJORITY"
            },
            "evaluate": {
                "quorum": "MAJORITY"
            },
            "id": "Wine",
            "validate": {
                "quorum": "MAJORITY"
            }
        }
    ],
    "schemas": [
        {
            "contract": {
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                        "
            },
            "id": "Wine",
            "initial_value": {
                "grape": null,
                "harvest": 0,
                "organic_certified": null,
                "origin": "",
                "temperature_control": {
                    "last_check": 0,
                    "temperature_ok": true
                }
            },
            "schema": {
                "additionalProperties": false,
                "description": "Representation of a bottle of wine",
                "properties": {
                    "grape": {
                        "description": "Type of grape",
                        "enum": [
                            "CabernetSauvignon",
                            "Chardonnay",
                            "PinotNoir",
                            null
                        ],
                        "type": [
                            "string",
                            "null"
                        ]
                    },
                    "harvest": {
                        "description": "Harvest number",
                        "type": "integer"
                    },
                    "organic_certified": {
                        "description": "Certificate authenticating whether it is organic or not",
                        "type": [
                            "boolean",
                            "null"
                        ]
                    },
                    "origin": {
                        "description": "Origin of the grape",
                        "type": "string"
                    },
                    "temperature_control": {
                        "additionalProperties": false,
                        "description": "Values to be changed in the temperature control event",
                        "properties": {
                            "last_check": {
                                "description": "Timestamp of last check",
                                "type": "integer"
                            },
                            "temperature_ok": {
                                "description": "Value that corroborates whether the wine cold chain has been complied with",
                                "type": "boolean"
                            }
                        },
                        "required": [
                            "last_check",
                            "temperature_ok"
                        ],
                        "type": "object"
                    }
                },
                "required": [
                    "harvest",
                    "grape",
                    "origin",
                    "organic_certified",
                    "temperature_control"
                ],
                "type": "object"
            }
        }
    ]
}
Para generar los cambios mencionados, usaremos nuestra herramienta kore-Patch de la siguiente manera:
kore-patch '{"policies":[{"approve":{"quorum":"MAJORITY"},"evaluate":{"quorum":"MAJORITY"},"id":"governance","validate":{"quorum":"MAJORITY"}}],"schemas":[]}' '{"policies":[{"approve":{"quorum":"MAJORITY"},"evaluate":{"quorum":"MAJORITY"},"id":"governance","validate":{"quorum":"MAJORITY"}},{"approve":{"quorum":"MAJORITY"},"evaluate":{"quorum":"MAJORITY"},"id":"Wine","validate":{"quorum":"MAJORITY"}}],"schemas":[{"contract":{"raw":"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"},"id":"Wine","initial_value":{"grape":null,"harvest":0,"organic_certified":null,"origin":"","temperature_control":{"last_check":0,"temperature_ok":true}},"schema":{"additionalProperties":false,"description":"Representationofabottleofwine","properties":{"grape":{"description":"Typeofgrape","enum":["CabernetSauvignon","Chardonnay","PinotNoir",null],"type":["string","null"]},"harvest":{"description":"Harvestnumber","type":"integer"},"organic_certified":{"description":"Certificateauthenticatingwhetheritisorganicornot","type":["boolean","null"]},"origin":{"description":"Originofthegrape","type":"string"},"temperature_control":{"additionalProperties":false,"description":"Valuestobechangedinthetemperaturecontrolevent","properties":{"last_check":{"description":"Timestampoflastcheck","type":"integer"},"temperature_ok":{"description":"Valuethatcorroborateswhetherthewinecoldchainhasbeencompliedwith","type":"boolean"}},"required":["last_check","temperature_ok"],"type":"object"}},"required":["harvest","grape","origin","organic_certified","temperature_control"],"type":"object"}}]}'
El resultado obtenido será el siguiente:
Resultado
Pincha para ver la gobernanza
[
    {
        "op": "add",
        "path": "/policies/1",
        "value": {
            "approve": {
                "quorum": "MAJORITY"
            },
            "evaluate": {
                "quorum": "MAJORITY"
            },
            "id": "Wine",
            "validate": {
                "quorum": "MAJORITY"
            }
        }
    },
    {
        "op": "add",
        "path": "/schemas/0",
        "value": {
            "contract": {
                "raw": "dXNlIHRhcGxlX3NjX3J1c3QgYXMgc2RrOwp1c2Ugc2VyZGU6OntEZXNlcmlhbGl6ZSwgU2VyaWFsaXplfTsKCiNbZGVyaXZlKFNlcmlhbGl6ZSwgRGVzZXJpYWxpemUsIENsb25lLCBQYXJ0aWFsRXEpXSAKZW51bSBHcmFwZSB7CiAgICBDYWJlcm5ldFNhdXZpZ25vbiwKICAgIENoYXJkb25uYXksCiAgICBQaW5vdE5vaXIsCn0KCiNbZGVyaXZlKFNlcmlhbGl6ZSwgRGVzZXJpYWxpemUsIENsb25lKV0Kc3RydWN0IFRlbXBlcmF0dXJlQ29udHJvbCB7CiAgICBwdWIgbGFzdF9jaGVjazogdTMyLAogICAgcHViIHRlbXBlcmF0dXJlX29rOiBib29sLAp9CgojW2Rlcml2ZShTZXJpYWxpemUsIERlc2VyaWFsaXplLCBDbG9uZSldCnN0cnVjdCBTdGF0ZSB7CiAgICBwdWIgaGFydmVzdDogdTMyLAogICAgcHViIGdyYXBlOiBPcHRpb248R3JhcGU+LAogICAgcHViIG9yaWdpbjogU3RyaW5nLAogICAgcHViIG9yZ2FuaWNfY2VydGlmaWVkOiBPcHRpb248Ym9vbD4sCiAgICBwdWIgdGVtcGVyYXR1cmVfY29udHJvbDogVGVtcGVyYXR1cmVDb250cm9sLAp9CgojW2Rlcml2ZShTZXJpYWxpemUsIERlc2VyaWFsaXplKV0KZW51bSBTdGF0ZUV2ZW50IHsKICAgIEluaXQgewogICAgICAgIGhhcnZlc3Q6IHUzMiwKICAgICAgICBncmFwZTogU3RyaW5nLAogICAgICAgIG9yaWdpbjogU3RyaW5nLAogICAgfSwKICAgIFRlbXBlcmF0dXJlQ29udHJvbCB7CiAgICAgICAgdGVtcGVyYXR1cmU6IGYzMiwKICAgICAgICB0aW1lc3RhbXA6IHUzMiwKICAgIH0sCiAgICBPcmdhbmljQ2VydGlmaWNhdGlvbiB7CiAgICAgICAgZmVydGlsaXplcnNfY29udHJvbDogYm9vbCwKICAgICAgICBwZXN0aWNpZGVzX2NvbnRyb2w6IGJvb2wsCiAgICAgICAgYW5hbHl0aWNzOiBib29sLAogICAgICAgIGFkZGl0aW9uYWxfaW5mbzogU3RyaW5nLAogICAgfSwKfQoKY29uc3QgVEVNUEVSQVRVUkVfUkFOR0U6IChmMzIsIGYzMikgPSAoMTAuMCwgMTYuMCk7CgojW25vX21hbmdsZV0KcHViIHVuc2FmZSBmbiBtYWluX2Z1bmN0aW9uKHN0YXRlX3B0cjogaTMyLCBldmVudF9wdHI6IGkzMiwgaXNfb3duZXI6IGkzMikgLT4gdTMyIHsKICAgIHNkazo6ZXhlY3V0ZV9jb250cmFjdChzdGF0ZV9wdHIsIGV2ZW50X3B0ciwgaXNfb3duZXIsIGNvbnRyYWN0X2xvZ2ljKQp9CgpmbiBjb250cmFjdF9sb2dpYygKICAgIGNvbnRleHQ6ICZzZGs6OkNvbnRleHQ8U3RhdGUsIFN0YXRlRXZlbnQ+LAogICAgY29udHJhY3RfcmVzdWx0OiAmbXV0IHNkazo6Q29udHJhY3RSZXN1bHQ8U3RhdGU+LAopIHsKICAgIGxldCBzdGF0ZSA9ICZtdXQgY29udHJhY3RfcmVzdWx0LmZpbmFsX3N0YXRlOwogICAgbWF0Y2ggJmNvbnRleHQuZXZlbnQgewogICAgICAgIFN0YXRlRXZlbnQ6OkluaXQgewogICAgICAgICAgICBoYXJ2ZXN0LAogICAgICAgICAgICBncmFwZSwKICAgICAgICAgICAgb3JpZ2luLAogICAgICAgIH0gPT4gewogICAgICAgICAgICBpZiBjb250ZXh0LmlzX293bmVyICYmICFjaGVja19zdWJqZWN0X2hhc19iZWVuX2luaXRpYXRlZChzdGF0ZSkgewogICAgICAgICAgICAgICAgbGV0IGdyYXBlID0gbWF0Y2ggZ3JhcGUuYXNfc3RyKCkgewogICAgICAgICAgICAgICAgICAgICJDYWJlcm5ldFNhdXZpZ25vbiIgPT4gU29tZShHcmFwZTo6Q2FiZXJuZXRTYXV2aWdub24pLAogICAgICAgICAgICAgICAgICAgICJDaGFyZG9ubmF5IiA9PiBTb21lKEdyYXBlOjpDaGFyZG9ubmF5KSwKICAgICAgICAgICAgICAgICAgICAiUGlub3ROb2lyIiA9PiBTb21lKEdyYXBlOjpQaW5vdE5vaXIpLAogICAgICAgICAgICAgICAgICAgIF8gPT4gTm9uZSwKICAgICAgICAgICAgICAgIH07CiAgICAgICAgICAgICAgICBpZiBncmFwZS5pc19zb21lKCkgewogICAgICAgICAgICAgICAgICAgIHN0YXRlLmhhcnZlc3QgPSAqaGFydmVzdDsKICAgICAgICAgICAgICAgICAgICBzdGF0ZS5ncmFwZSA9IGdyYXBlOwogICAgICAgICAgICAgICAgICAgIHN0YXRlLm9yaWdpbiA9IG9yaWdpbi50b19zdHJpbmcoKTsKICAgICAgICAgICAgICAgICAgICBjb250cmFjdF9yZXN1bHQuc3VjY2VzcyA9IHRydWU7CiAgICAgICAgICAgICAgICB9CiAgICAgICAgICAgIH0KICAgICAgICB9CiAgICAgICAgU3RhdGVFdmVudDo6VGVtcGVyYXR1cmVDb250cm9sIHsKICAgICAgICAgICAgdGVtcGVyYXR1cmUsCiAgICAgICAgICAgIHRpbWVzdGFtcCwKICAgICAgICB9ID0+IHsKICAgICAgICAgICAgaWYgY29udGV4dC5pc19vd25lciAmJiBjaGVja19zdWJqZWN0X2hhc19iZWVuX2luaXRpYXRlZChzdGF0ZSkgewogICAgICAgICAgICAgICAgaWYgY2hlY2tfdGVtcGVyYXR1cmVfaW5fcmFuZ2UoKnRlbXBlcmF0dXJlKQogICAgICAgICAgICAgICAgICAgICYmIHN0YXRlLnRlbXBlcmF0dXJlX2NvbnRyb2wudGVtcGVyYXR1cmVfb2sKICAgICAgICAgICAgICAgIHsKICAgICAgICAgICAgICAgICAgICBzdGF0ZS50ZW1wZXJhdHVyZV9jb250cm9sLmxhc3RfY2hlY2sgPSAqdGltZXN0YW1wOwogICAgICAgICAgICAgICAgfSBlbHNlIHsKICAgICAgICAgICAgICAgICAgICBzdGF0ZS50ZW1wZXJhdHVyZV9jb250cm9sLnRlbXBlcmF0dXJlX29rID0gZmFsc2U7CiAgICAgICAgICAgICAgICAgICAgc3RhdGUudGVtcGVyYXR1cmVfY29udHJvbC5sYXN0X2NoZWNrID0gKnRpbWVzdGFtcDsKICAgICAgICAgICAgICAgIH0KICAgICAgICAgICAgICAgIGNvbnRyYWN0X3Jlc3VsdC5zdWNjZXNzID0gdHJ1ZTsKICAgICAgICAgICAgfQogICAgICAgIH0KICAgICAgICBTdGF0ZUV2ZW50OjpPcmdhbmljQ2VydGlmaWNhdGlvbiB7CiAgICAgICAgICAgIGZlcnRpbGl6ZXJzX2NvbnRyb2wsCiAgICAgICAgICAgIHBlc3RpY2lkZXNfY29udHJvbCwKICAgICAgICAgICAgYW5hbHl0aWNzLAogICAgICAgICAgICBhZGRpdGlvbmFsX2luZm8sCiAgICAgICAgfSA9PiB7CiAgICAgICAgICAgIGlmIGNoZWNrX3N1YmplY3RfaGFzX2JlZW5faW5pdGlhdGVkKHN0YXRlKSB7CiAgICAgICAgICAgICAgICBtYXRjaCBzdGF0ZS5vcmdhbmljX2NlcnRpZmllZCB7CiAgICAgICAgICAgICAgICAgICAgU29tZShvcmdhbmljX2NlcmlmaWVkKSA9PiB7CiAgICAgICAgICAgICAgICAgICAgICAgIGlmIG9yZ2FuaWNfY2VyaWZpZWQKICAgICAgICAgICAgICAgICAgICAgICAgICAgICYmICFjaGVja19pc19vcmdhbmljKAogICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICpmZXJ0aWxpemVyc19jb250cm9sLAogICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICpwZXN0aWNpZGVzX2NvbnRyb2wsCiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgKmFuYWx5dGljcywKICAgICAgICAgICAgICAgICAgICAgICAgICAgICkKICAgICAgICAgICAgICAgICAgICAgICAgewogICAgICAgICAgICAgICAgICAgICAgICAgICAgc3RhdGUub3JnYW5pY19jZXJ0aWZpZWQgPSBTb21lKGZhbHNlKTsKICAgICAgICAgICAgICAgICAgICAgICAgfQogICAgICAgICAgICAgICAgICAgIH0KICAgICAgICAgICAgICAgICAgICBOb25lID0+IHsKICAgICAgICAgICAgICAgICAgICAgICAgaWYgY2hlY2tfaXNfb3JnYW5pYygqZmVydGlsaXplcnNfY29udHJvbCwgKnBlc3RpY2lkZXNfY29udHJvbCwgKmFuYWx5dGljcykgewogICAgICAgICAgICAgICAgICAgICAgICAgICAgc3RhdGUub3JnYW5pY19jZXJ0aWZpZWQgPSBTb21lKHRydWUpOwogICAgICAgICAgICAgICAgICAgICAgICB9IGVsc2UgewogICAgICAgICAgICAgICAgICAgICAgICAgICAgc3RhdGUub3JnYW5pY19jZXJ0aWZpZWQgPSBTb21lKGZhbHNlKTsKICAgICAgICAgICAgICAgICAgICAgICAgfQogICAgICAgICAgICAgICAgICAgIH0KICAgICAgICAgICAgICAgIH0KICAgICAgICAgICAgICAgIGNvbnRyYWN0X3Jlc3VsdC5hcHByb3ZhbF9yZXF1aXJlZCA9IHRydWU7CiAgICAgICAgICAgICAgICBjb250cmFjdF9yZXN1bHQuc3VjY2VzcyA9IHRydWU7CiAgICAgICAgICAgIH0KICAgICAgICB9CiAgICB9Cn0KCmZuIGNoZWNrX3N1YmplY3RfaGFzX2JlZW5faW5pdGlhdGVkKHN0YXRlOiAmU3RhdGUpIC0+IGJvb2wgewogICAgbGV0IGluaXRpYWxfZ3JhcGUgPSBtYXRjaCBzdGF0ZS5ncmFwZSB7CiAgICAgICAgU29tZShfKSA9PiBmYWxzZSwKICAgICAgICBOb25lID0+IHRydWUsCiAgICB9OwogICAgaWYgc3RhdGUuaGFydmVzdCA9PSAwICYmIGluaXRpYWxfZ3JhcGUgJiYgc3RhdGUub3JpZ2luID09IGZvcm1hdCEoIiIpIHsKICAgICAgICByZXR1cm4gZmFsc2U7CiAgICB9CiAgICByZXR1cm4gdHJ1ZTsKfQoKZm4gY2hlY2tfdGVtcGVyYXR1cmVfaW5fcmFuZ2UodGVtcGVyYXR1cmU6IGYzMikgLT4gYm9vbCB7CiAgICBpZiB0ZW1wZXJhdHVyZSA+PSBURU1QRVJBVFVSRV9SQU5HRS4wICYmIHRlbXBlcmF0dXJlIDw9IFRFTVBFUkFUVVJFX1JBTkdFLjEgewogICAgICAgIHJldHVybiB0cnVlOwogICAgfQogICAgcmV0dXJuIGZhbHNlOwp9CgpmbiBjaGVja19pc19vcmdhbmljKGZlcnRpbGl6ZXJzX2NvbnRyb2w6IGJvb2wsIHBlc3RpY2lkZXNfY29udHJvbDogYm9vbCwgYW5hbHl0aWNzOiBib29sKSAtPiBib29sIHsKICAgIGlmIGZlcnRpbGl6ZXJzX2NvbnRyb2wgJiYgcGVzdGljaWRlc19jb250cm9sICYmIGFuYWx5dGljcyB7CiAgICAgICAgcmV0dXJuIHRydWU7CiAgICB9CiAgICByZXR1cm4gZmFsc2U7Cn0="
            },
            "id": "Wine",
            "initial_value": {
                "grape": null,
                "harvest": 0,
                "organic_certified": null,
                "origin": "",
                "temperature_control": {
                    "last_check": 0,
                    "temperature_ok": true
                }
            },
            "schema": {
                "additionalProperties": false,
                "description": "Representationofabottleofwine",
                "properties": {
                    "grape": {
                        "description": "Typeofgrape",
                        "enum": [
                            "CabernetSauvignon",
                            "Chardonnay",
                            "PinotNoir",
                            null
                        ],
                        "type": [
                            "string",
                            "null"
                        ]
                    },
                    "harvest": {
                        "description": "Harvestnumber",
                        "type": "integer"
                    },
                    "organic_certified": {
                        "description": "Certificateauthenticatingwhetheritisorganicornot",
                        "type": [
                            "boolean",
                            "null"
                        ]
                    },
                    "origin": {
                        "description": "Originofthegrape",
                        "type": "string"
                    },
                    "temperature_control": {
                        "additionalProperties": false,
                        "description": "Valuestobechangedinthetemperaturecontrolevent",
                        "properties": {
                            "last_check": {
                                "description": "Timestampoflastcheck",
                                "type": "integer"
                            },
                            "temperature_ok": {
                                "description": "Valuethatcorroborateswhetherthewinecoldchainhasbeencompliedwith",
                                "type": "boolean"
                            }
                        },
                        "required": [
                            "last_check",
                            "temperature_ok"
                        ],
                        "type": "object"
                    }
                },
                "required": [
                    "harvest",
                    "grape",
                    "origin",
                    "organic_certified",
                    "temperature_control"
                ],
                "type": "object"
            }
        }
    }
]
Ahora es el momento de llamar al método del contrato de la gobernanza responsable de actualizar sus propiedades. Para ello ejecutaremos lo siguiente:
Evento
Pincha para ver el evento
curl --request POST 'http://localhost:3000/event-requests' \
--header 'Content-Type: application/json' \
--data-raw '{
    "request": {
        "Fact": {
            "subject_id": {{GOVERNANCE-ID}},
            "payload": {
                "Patch": {
                    "data": [
                        {
                            "op": "add",
                            "path": "/policies/1",
                            "value": {
                                "approve": {
                                    "quorum": "MAJORITY"
                                },
                                "evaluate": {
                                    "quorum": "MAJORITY"
                                },
                                "id": "Wine",
                                "validate": {
                                    "quorum": "MAJORITY"
                                }
                            }
                        },
                        {
                            "op": "add",
                            "path": "/schemas/0",
                            "value": {
                                "contract": {
                                    "raw": "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"
                                },
                                "id": "Wine",
                                "initial_value": {
                                    "grape": null,
                                    "harvest": 0,
                                    "organic_certified": null,
                                    "origin": "",
                                    "temperature_control": {
                                        "last_check": 0,
                                        "temperature_ok": true
                                    }
                                },
                                "schema": {
                                    "additionalProperties": false,
                                    "description": "Representationofabottleofwine",
                                    "properties": {
                                        "grape": {
                                            "description": "Typeofgrape",
                                            "enum": [
                                                "CabernetSauvignon",
                                                "Chardonnay",
                                                "PinotNoir",
                                                null
                                            ],
                                            "type": [
                                                "string",
                                                "null"
                                            ]
                                        },
                                        "harvest": {
                                            "description": "Harvestnumber",
                                            "type": "integer"
                                        },
                                        "organic_certified": {
                                            "description": "Certificateauthenticatingwhetheritisorganicornot",
                                            "type": [
                                                "boolean",
                                                "null"
                                            ]
                                        },
                                        "origin": {
                                            "description": "Originofthegrape",
                                            "type": "string"
                                        },
                                        "temperature_control": {
                                            "additionalProperties": false,
                                            "description": "Valuestobechangedinthetemperaturecontrolevent",
                                            "properties": {
                                                "last_check": {
                                                    "description": "Timestampoflastcheck",
                                                    "type": "integer"
                                                },
                                                "temperature_ok": {
                                                    "description": "Valuethatcorroborateswhetherthewinecoldchainhasbeencompliedwith",
                                                    "type": "boolean"
                                                }
                                            },
                                            "required": [
                                                "last_check",
                                                "temperature_ok"
                                            ],
                                            "type": "object"
                                        }
                                    },
                                    "required": [
                                        "harvest",
                                        "grape",
                                        "origin",
                                        "organic_certified",
                                        "temperature_control"
                                    ],
                                    "type": "object"
                                }
                            }
                        }
                    ]
                }
            }
        }
    }
}'
Una vez emitido el evento, necesitamos obtener la nueva solicitud de actualización. Para ello ejecutamos lo siguiente:
curl --request GET 'http://localhost:3000/approval-requests?status=Pending'
Copiamos el valor del campo id y aceptamos la solicitud de actualización de gobernanza:
curl --request PATCH 'http://localhost:3000/approval-requests/{{PREVIUS-ID}}' \
--header 'Content-Type: application/json' \
--data-raw '{"state": "RespondedAccepted"}'
Finalmente, consultamos la gobernanza para verificar que el cambio se haya aplicado exitosamente. Si todo ha ido según lo planeado, ahora debería tener un sn de 2, y la nueva política, esquema, estado inicial para los sujetos Wine y el contrato deberían estar presentes:
curl --request GET 'http://localhost:3000/subjects/{{GOVERNANCE-ID}}'
Gobernanza
Pincha para ver la gobernanza
{
    "subject_id": "{{GOVERNANCE-ID}}",
    "governance_id": "",
    "sn": 2,
    "public_key": "E8tVWEasubIp7P9fzk_HttNCsABymV9m9xEPAfr-QV7M",
    "namespace": "",
    "name": "wine_track",
    "schema_id": "governance",
    "owner": "{{CONTROLLER-ID}}",
    "creator": "{{CONTROLLER-ID}}",
    "properties": {
        "members": [
        {
            "id": "{{CONTROLLER-ID}}",
            "name": "WPO"
        }
        ],
        "policies": [
        {
            "approve": {
            "quorum": "MAJORITY"
            },
            "evaluate": {
            "quorum": "MAJORITY"
            },
            "id": "governance",
            "validate": {
            "quorum": "MAJORITY"
            }
        },
        {
            "approve": {
            "quorum": "MAJORITY"
            },
            "evaluate": {
            "quorum": "MAJORITY"
            },
            "id": "Wine",
            "validate": {
            "quorum": "MAJORITY"
            }
        }
        ],
        "roles": [
        {
            "namespace": "",
            "role": "WITNESS",
            "schema": {
            "ID": "governance"
            },
            "who": "MEMBERS"
        },
        {
            "namespace": "",
            "role": "APPROVER",
            "schema": {
            "ID": "governance"
            },
            "who": {
            "NAME": "WPO"
            }
        }
        ],
        "schemas": [
        {
            "contract": {
            "raw": 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            },
            "id": "Wine",
            "initial_value": {
            "grape": null,
            "harvest": 0,
            "organic_certified": null,
            "origin": "",
            "temperature_control": {
                "last_check": 0,
                "temperature_ok": true
            }
            },
            "schema": {
            "additionalProperties": false,
            "description": "Representation of a bottle of wine",
            "properties": {
                "grape": {
                "description": "Type of grape",
                "enum": [
                    "CabernetSauvignon",
                    "Chardonnay",
                    "PinotNoir",
                    null
                ],
                "type": [
                    "string",
                    "null"
                ]
                },
                "harvest": {
                "description": "Harvest number",
                "type": "integer"
                },
                "organic_certified": {
                "description": "Certificate authenticating whether it is organic or not",
                "type": [
                    "boolean",
                    "null"
                ]
                },
                "origin": {
                "description": "Origin of the grape",
                "type": "string"
                },
                "temperature_control": {
                "additionalProperties": false,
                "description": "Values to be changed in the temperature control event",
                "properties": {
                    "last_check": {
                    "description": "Timestamp of last check",
                    "type": "integer"
                    },
                    "temperature_ok": {
                    "description": "Value that corroborates whether the wine cold chain has been complied with",
                    "type": "boolean"
                    }
                },
                "required": [
                    "last_check",
                    "temperature_ok"
                ],
                "type": "object"
                }
            },
            "required": [
                "harvest",
                "grape",
                "origin",
                "organic_certified",
                "temperature_control"
            ],
            "type": "object"
            }
        }
        ]
    },
    "active": true
}