Use switch cases based on condition - ios

Question

I have made a file called Constants.swift. Within this, I have made a class like so...
public class WebServices {
static let getMyPlants : String = "plant/getPlants"
static let getMyOrganizations: String = "organization/getOrganizations"
}
Now whenever, I use an api anywhere in my project, I do Webservices.getMyPlants.
Now I also have a base-url for each of the API's. That is mentioned below public class WebServices.... like so..
struct envDev {
var BASEURL : String = "http://api-proj-dev.ii.the-co.com/api/"
}
Now, the base-url for Webservices.getMyOrganizations is different. I want to use a condition within struct envDev that if I have selected Webservices.getMyOrganizations, then I can give a different BASEURL. Something like...
//The below code isn't right. I just wrote it to represent the kind of solution I wish to have.
struct envDev {
var BASEURL : String = "http://api-proj-dev.ii.the-co.com/api/"
if Webservices.getMyOrganizations {
var BASEURL : String = "http://my second base-url.."
}
}
EDIT 1 Giving below the signature of APIHelper
class APIHelper: NSObject {
var API: NSString
var json: NSString
var receivedJSON: NSString?
var arrResult: NSMutableArray = []
let esmatBaseUrl = AppDelegate().currentUser //This is given in AppDelegate as `var currentUser = envDev()`
()
EDIT 2 Inclusion of baseUrl computed property in APIHelper & the error.
class APIHelper: NSObject {
var API: NSString
var json: NSString
var receivedJSON: NSString?
var arrResult: NSMutableArray = []
let esmatBaseUrl = AppDelegate().currentUser //This is given in AppDelegate as `var currentUser = envDev()`
()
var baseUrl: String {
esmatBaseUrl.baseUrl(forApi: API as String) // Here I'm getting the error as `Value of type 'envDev' has no member 'baseUrl'`
}

Answer 1

envDev has no way of knowing what happens in APIHelper, so you need a way to pass in the API from APIHelper to envDev. This means that BASEURL should not be a property, but a method:
func baseUrl(forApi api: String) -> String {
switch api {
case WebServices.getMyPlants: return "some url"
case WebServices.getMyOrganizations: return "some other url"
default: fatalError()
}
}
Then in APIHelper, you can add a baseUrl computed property that calls the above method:
var baseUrl: String {
esmatBaseUrl.baseUrl(forApi: API as String)
}
This would mean that you need to change all occurrences of esmatBaseUrl.BASEURL in your existing code to just baseUrl.
Also, I would suggest not using NSString, NSArray, etc in Swift. You should their Swift counterparts: String and [T].

Answer 2

I understood your query. You want to create an ENUM for your server-environment's, instead of hard-coding baseUrl's you probably want to use ENUMS to select different environments, right.
So accordingly, I've created an ENUM for you to add different server-environments so it will be feasible for you to use it frequently every-where.
private enum ServerEnv: String {
case stage, prod, test, my_plants, my_organization
var domainValue: String {
switch self {
case .test, .my_plants: return "http://api-testing-proj-dev.ii.the-co.com/api/"
case .stage: return "http://api-staging-proj-dev.ii.the-co.com/api/"
case .prod: return "http://api-production-proj-dev.ii.the-co.com/api/"
case .my_organization: return "http://api-my_organization-proj-dev.ii.the-co.com/api/"
}
}
}
Example :
let baseUrl = ServerEnv.my_organization.domainValue
Output => baseURL = "http://api-my_organization-proj-dev.ii.the-co.com/api/"
let baseUrl = ServerEnv.my_plants.domainValue
Output => baseURL = "http://api-testing-proj-dev.ii.the-co.com/api/"
I hope, I've solved your query here.
Happy Coding :-)