Question 59778 in Telegram API Question posted in
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declare global variable in kotlin defaulted to a property value – Telegram API

I am trying to load a global variable in kotlin directly from the application.yml:

telegram:
  token: foo

to achieve this, in my class I’ve tried this:

@Value("${telegram.token}")
val botToken: String

But it is throwing an error saying that I need to initialize the property. (For example, this doesn’t throw an error but it is not my expected behaviour):

@Value("${telegram.token}")
val botToken: String = ""

What I want is to inject the config value (foo) into this constant (botToken).

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2

Answers


  1. 0

    first of all it seems like you could use @Property(name = "telegram.token")

    and then i would attempt

    @Property(name = "telegram.token")
lateinit var token: String
    private set
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  2. 0

    Either add it as a parameter in the constructor of the bean that contains the property:

    class WhateverSpringManagedBeanClass(
    @Value("${telegram.token}") private val botToken: String
)

    Or try the following (this makes botToken mutable):

    @Value("${telegram.token}")
lateinit var botToken: String
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