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@allnulled/async-circuit

v1.0.1

Published

Permite pasar árboles de sync, serie, parallel y race a función asíncrona.

Readme

async-circuit

Permite pasar árboles de sync, serie, parallel y race a función asíncrona.

Installación

npm i -s @allnulled/async-circuit

Importación

En node.js:

require("@allnulled/async-circuit");

En html:

<script src="node_modules/@allnulled/async-circuit/async-circuit.js"></script>

Idea

La idea es poder escribir mapas de circuitos con tuberías que permitan los modos más típicos de asincronicidad que son serie, paralelo y carrera.

Se hace convirtiendo un mapa en un script que con AsyncFunction pasamos de código a función.

Este mapa tiene unas condiciones especiales, donde:

  • Solo se aceptan valores de tipo function, y object con una propiedad $type y un valor válido para ésta.
  • Las function son usadas como código fuente, por lo cual se usa toString(), no valen funciones de código nativo.
  • Los object son usados como pivote para grupos funcionales asíncronos.
    • Cuando $type es sync es una lista de $callbacks en síncrono
    • Cuando $type es serie es una lista de $callbacks en serie
    • Cuando $type es parallel es una lista de $callbacks en paralelo
    • Cuando $type es race es una lista de $callbacks en carrera

Sé que faltan muchas cosas, pero la API más básica sería esta, para mí.

Uso

El test es este:

// Ejemplo de uso:
const data = {};
const setData = function(obj = {}) {
    Object.assign(data, obj);
};
const tree = {
    $type: 'parallel',
    $callbacks: [
    {
        $type: 'sync',
        $callbacks: [
        () => setData({ m1: 'Sync 1' }),
        () => setData({ m2: 'Sync 2' })
        ]
    },
    {
        $type: "race",
        $callbacks: [
        async () => {
            setData({ m3: 'Async 1' });
            return 'done 1';
        },
        async () => {
            setData({ m4: 'Async 2' });
            return 'done 2';
        }
        ]
    },
    {
        $type: 'serie',
        $callbacks: [
        async () => {
            setData({ m5: 'Serie 1' });
            return 'done 3';
        },
        async () => {
            setData({ m6: 'Serie 2' });
            return 'done 4';
        }
        ]
    },
    ]
};
const asyncCircuit = AsyncCircuit.create();
asyncCircuit.hook(function(node) {
    console.log("Finished: ", node);
});
await asyncCircuit.execute(tree, { setData });
console.log('Todo listo!');
console.log(data);
if(!("m1" in data)) {
    throw new Error("m1 not found");
}