Inputs and outputs

Each task is called with a context object which contains some input data on the data property. The task is expected to return some output data which will be used as the input for the next task.

The return value of the task should be a serializable by JSON.stringify(), or a Promise which resolves to a serializable value.Users should not return the context object as this will cause the runtime to fail.

import { webhook } from '@versori/run';

/**
 * Send the following payload:
 *  {
 *    "items": [
 *      { "sku": "123", "price": 100 },
 *      { "sku": "456", "price": 200 },
 *    ]
 *  }
 * 
 * The workflow will return the following payload:
 *  {
 *    "skus": ["123", "456"],
 *    "total": 300,
 *  }
*/
const workflow = webhook('my-webhook')
    .then((ctx) => {
        if (typeof ctx.data !== 'object') {
            throw new Error('Body must be an object');
        }

        if (!ctx.data.items) {
            return [];
        }

        if (!Array.isArray(ctx.data.items)) {
            return [ctx.data.items];
        }

        // the next task's input will be an array of items
        return ctx.data.items;
    })
    .then((ctx) => ({
        skus: ctx.data.map((item) => item.sku),
        total: ctx.data.reduce((acc, item) => acc + item.price, 0),
    }));

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