jira.all

    //promise.all
    JiraApi = require('jira').JiraApi;
    var jira;

    jira = new JiraApi([redacted]);

    function listProjects() {
        return new Promise(function(resolve, reject) {
            jira.listProjects(function (error, projects) {
                if (error) {
                    reject(error)
                } else {
                    resolve(projects);
                }
            });
        })

    }

    function listVersions(project) {
        return new Promise(function(resolve, reject) {
            jira.getVersions(project, function(error, versions) {
                if(error) {
                    reject(error);
                } else {
                    resolve(versions);
                }
            })
        })
    }

    function success(data) {
        console.log("Success: " + data);
    }

    function error(err) {
        console.log("Error: " + err);
    }

    listProjects()
        .then(projects => {
            return Promise.all(projects.map(project => listVersions(project.key)))
        })
        .then(success)
        .catch(error);