Automatically Generating and Returning License Data via JavaScript API for Automated Testing

In automated testing, you often need to call an API to obtain data such as a license and then use that data in later test steps.

The following JavaScript function generateLicense sends a POST request to a license‑generation service, passing parameters like expiration day, capacity, and code, and returns the response via a callback.

generateLicense: function(success, day, capacity, code) {
    var request = require('request');
    var options = {
        method: 'POST',
        url: 'https://generate-license/api/licenses',
        headers: {
            'postman-token': 'd849e636-58c9-2705',
            'cache-control': 'no-cache',
            authorization: 'Basic YWRtaW46U',
            'content-type': 'application/json'
        },
        body: {
            company: 'Google',
            email: '[email protected]',
            expiration: day,
            capacity: capacity,
            phone: '89262518',
            address: 'Dalian',
            code: code
        },
        json: true
    };
    request(options, function (error, response) {
        if (error) {
            console.log(error);
            return;
        }
        success(response);
    });
},

After generating the license, you can assign it to a variable and use it in later test cases, for example:

const license = client.page.license();
let MVlicense;
license.generateLicense(function(response) {
    MVlicense = response.body.data.license.license;
}, 365, 10, 'MV');

The article also mentions that asynchronous handling is required and provides links to related posts about element position changes and keyboard simulation in Nightwatch.