(Swift) Initiate Resumable Upload Session

See more Google Cloud Storage Examples

Initiate a Google Cloud Storage resumable upload session..

For more information, see https://cloud.google.com/storage/docs/performing-resumable-uploads

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

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

    let http = CkoHttp()!

    let jsonToken = CkoJsonObject()!
    var success: Bool = jsonToken.loadFile("qa_data/tokens/googleCloudStorage.json")
    if success == false {
        print("\(jsonToken.lastErrorText!)")
        return
    }

    let jsonMetaData = CkoJsonObject()!
    jsonMetaData.update("contentType", value: "image/jpeg")

    // Adds the "Authorization: Bearer <access_token>" header..
    http.authToken = jsonToken.string(of: "access_token")

    http.setUrlVar("bucket_name", value: "chilkat-bucket-b")
    http.setUrlVar("object_name", value: "penguins2.jpg")
    var url: String? = "https://storage.googleapis.com/upload/storage/v1/b/{$bucket_name}/o?uploadType=resumable&name={$object_name}"
    var resp: CkoHttpResponse? = http.pText("POST", url: url, textData: jsonMetaData.emit(), charset: "utf-8", contentType: "application/json", md5: false, gzip: false)
    if http.lastMethodSuccess == false {
        print("\(http.lastErrorText!)")
        return
    }

    var statusCode: Int = resp!.statusCode.intValue
    print("response status code = \(statusCode)")

    var sessionUrl: String? = ""

    if statusCode != 200 {
        print("\(resp!.bodyStr!)")
    }
    else {
        // The session URL will be used to upload the file in chunks, in subsequent HTTP POSTs...
        sessionUrl = resp!.getHeaderField("Location")
        print("Session URL = \(sessionUrl!)")
    }

    resp = nil

}