(Swift 3,4,5...) Permanently Delete a Specific GMail Message

Immediately and permanently deletes the specified message. This operation cannot be undone. (This is not the same as moving a message to Trash.)

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    var success: Bool

    let http = CkoHttp()!
    http.authToken = "GMAIL-ACCESS-TOKEN"

    // The id of the GMail message to delete.
    var id: String? = "1669cc9a926bb8c1"
    var userId: String? = "me"

    http.setUrlVar("userId", value: "me")
    http.setUrlVar("id", value: id)

    // Delete the email.
    var url: String? = "https://www.googleapis.com/gmail/v1/users/{$userId}/messages/{$id}"
    var responseStr: String? = http.quickDeleteStr(url)
    if http.lastMethodSuccess != true {
        print("\(http.lastErrorText!)")
        return
    }

    print("status = \(http.lastStatus.intValue)")

    // A 204 response indicate success.
    // It is common for HTTP DELETE operations to respond with a 204 status code with an empty body for success.
    // You'll find many REST APIs follow this custom..
    if http.lastStatus.intValue != 204 {
        print("\(responseStr!)")
        print("Failed.")
        return
    }

    print("Message deleted!")

}