Script Specification
The most basic Mesa Script is exports a class with a script() method. The code is executed in a V8 environment and can be written in standard Javascript or ES6. The class can contain additional methods or variables.
Parameters
During runtime, the script() method will be called and passed two parameters, payload and context:
Name
| Name | Type | Description | |
| payload | object |
The payload data | |
| context | object |
Contains data relative to the current task that is running. | |
| context.task | object |
Metadata about the current Task that is executing. Available on: All Inputs and Outputs. | |
| context.shop | object |
Metadata about the Shopify store that the Task is running on | |
| context.input | object |
Metadata about the Input that triggered the Task. Available on: All Inputs. | Optional |
| context.output | object |
Metadata about the Output that triggered the Task. Available on: All Outputs. | Optional |
| context.headers | object |
The headers passed from the webhook. Available on: Shopify Webhook and JSON Webhook Inputs. | Optional |
| context.filename | object |
The name of the file that was read or is being saved on the FTP ServerAvailable on: FTP Inputs and FTP Outputs. | Optional |
Basic Mesa Script
const Mesa = require('vendor/Mesa.js');
/**
* A Mesa Script exports a class with a script() method.
*/
module.exports = new class {
/**
* Mesa Script
*
* @param {object} payload The payload data
* @param {object} context Additional context about this task
*/
script = (payload, context) => {
// Your code goes here
}
}
Mesa Scripts can call any of the Mesa SDK methods or methods from our libraries.
Timezones
All system timezones are in your Shopify Store's timezone. You can view and update your timezone from the Shopify Dashboard: Admin > Settings > General, under "Standards and formats". If you need to get dates in a different timezone, use the Mesa.date.setTimezone(timezone) method.
Unsupported nodejs methods
Scripts are run in a stock V8 environment. This means that some common NodeJS methods are not available:
request(): Alternative: Mesa.request.*() Documentation.
console.log(): Alternative: Mesa.log.*() Documentation.
DOM manipulation methods: Alternative: Mesa.xml.decode() Documentation.