Function initialize 

pub async fn initialize()

Initialize the retrieving of the secrets to Vault. You must provide at least the three following environment variables:

• VAULT_ADDR
• VAULT_PATH
• VAULT_TYPE

use dotenv::dotenv;

#[tokio::main]
async fn main() {
    dotenv().ok();
    vault_credentials::initialize().await;

    println!("{}", std::env::var("github.com.api-key").unwrap());
    // Output: 123456
}

Using token

VAULT_TYPE=token
VAULT_TOKEN=[...]

Using app role

VAULT_TYPE=approle
VAULT_ROLE_ID=[...]
VAULT_SECRET_ID=[...]

Using kubernetes

VAULT_TYPE=kubernetes
VAULT_K8S_AUTH_PATH?=kubernetes-id
K8S_SERVICE_TOKEN=/path/to/k8s.json
VAULT_ROLE_NAME=[...]

Using user pass

VAULT_TYPE=userpass
VAULT_USERNAME=[...]
VAULT_PASSWORD=[...]

Using ldap

VAULT_TYPE=ldap
VAULT_USERNAME=[...]
VAULT_PASSWORD=[...]

Optional namespace

You can specify a namespace using VAULT_NAMESPACE environment variable.