(Swift) HTTP POST JSON (application/json)

Demonstrates how to send a JSON POST using the application/json content-type.

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

    let req = CkoHttpRequest()!
    let http = CkoHttp()!

    // If any custom headers need to be included with the POST, add them
    // by calling SetRequestHeader

    // Note: An application should never explicitly set the Content-Length header.
    // The Content-Length is automatically computed and added by Chilkat.

    // Here are some examples of custom headers.  

    // Perhaps your particular app needs some sort of custom-computed Authorization header...
    http.setRequestHeader("Authorization", value: "my-custom-computed-auth-value")

    // Another custom header for some hypothetical app:
    http.setRequestHeader("X-Pass-Timestamp", value: "my-custom-computed-timestamp-value")

    // We don't need to set the Content-Type header, becaue it is automatically set by Chilkat
    // in the PostJson2 call below.

    // The following "Accept" header may be set, but it really isn't necessary:
    http.setRequestHeader("Accept", value: "application/json")

    var jsonText: String? = "{ some JSON text ... }"

    // To use SSL/TLS, simply use "https://" in the URL.

    var resp: CkoHttpResponse?
    resp = http.postJson2("http://www.someserver.com/someJsonEndpoint", contentType: "application/json", jsonText: jsonText)
    if http.lastMethodSuccess != true {
        print("\(http.lastErrorText!)")
    }
    else {
        // Display the JSON response.
        print("\(resp!.bodyStr!)")
        resp = nil
    }


}