[FIXED] How to intake a number parameter as manually type input into my Jenkins declarative pipeline?

Issue

I have a "Jenkins declarative pipeline". I understand from explanation here that I could pass choices like below in my Jenkinsfile.

parameters {
    choice(name: 'TYPE_OF_DEPLOYMENT',
           choices: ['Android', 'iOS', 'macOS'],
           description: 'Select a platform to deploy build to')
}

Above works well to give 3 selections in a drop down.

Question:
But what if I want to intake a number or a string which is manually typed rather than selected from a drop down?
Is it possible to take a number input into the pipeline from the Jenkins page before starting a parameterised build?

Solution

Sure! Let's suppose you want to receive the type of deployment and the version number (something like 1, 2, 10, etc.). You can then do something like this:

pipeline {
    agent any

    parameters {
        choice choices: ['Android', 'iOS', 'macOS'], description: 'Select a platform to deploy build to', name: 'TYPE_OF_DEPLOYMENT'
        string defaultValue: '1', description: 'Version number', name: 'VERSION', trim: true
    }

    stages {
        stage('Getting parameter values') {
            steps {
                script {
                    print("Type of deployment: ${env.TYPE_OF_DEPLOYMENT}")
                    print("Version number: ${env.VERSION}")
                }
            }
        }
    }
}

About your second question, about if it is possible to take a number input before the parameter screen, I don't think it is easily doable. Most people solve that kind of problem with inputs instead of parameters.

Like this:

pipeline {
    agent any

    parameters {
        choice choices: ['Android', 'iOS', 'macOS'], description: 'Select a platform to deploy build to', name: 'TYPE_OF_DEPLOYMENT'
    }

    stages {
        stage('Input version number') {
            steps {
                script {
                    def userInput = input id: 'VERSION_NUMBER', message: 'Please insert a version number here', parameters: [string(defaultValue: '1', description: '', name: 'VERSION_NUMBER', trim: true)]
                    print(userInput)
                }
            }
        }

        stage('Getting parameter values') {
            steps {
                script {
                    print("Type of deployment: ${env.TYPE_OF_DEPLOYMENT}")
                }
            }
        }
    }
}

Best regards!

Answered By - Stefano Martins