Add a Request Header to a REST Request

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Demonstrates Rest.AddHeader, which adds an HTTP request header field. The 1st argument is the field name and the 2nd is the value. Adding a header whose name already exists replaces the previous value.

func chilkatTest() {
    var success: Bool = false

    let rest = CkoRest()!

    //  Connect to the REST server.  The 3rd argument enables TLS (use true for HTTPS on port 443),
    //  and the 4th enables automatic reconnection if the connection is dropped between requests.
    var bTls: Bool = true
    var bAutoReconnect: Bool = true
    success = rest.connect(hostname: "example.com", port: 443, tls: bTls, autoReconnect: bAutoReconnect)
    if success == false {
        print("\(rest.lastErrorText!)")
        return
    }

    //  Add request header fields.  The 1st argument is the field name and the 2nd is the value.
    //  Adding a header with a name that already exists replaces the previous value.
    rest.addHeader(name: "Accept", value: "application/json")
    rest.addHeader(name: "X-Custom-Header", value: "example-value")

    var responseText: String? = rest.fullRequestNoBody(httpVerb: "GET", uriPath: "/api/data")
    if rest.lastMethodSuccess == false {
        print("\(rest.lastErrorText!)")
        return
    }

    print("\(responseText!)")

}