(Swift 3,4,5...) ETrade v1 Preview Order

Gets the order details for a selected brokerage account based on the search criteria provided.

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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 http = CkoHttp()!

    http.oAuth1 = true
    http.oAuthVerifier = ""
    http.oAuthConsumerKey = "ETRADE_CONSUMER_KEY"
    http.oAuthConsumerSecret = "ETRADE_CONSUMER_SECRET"

    // Load the access token previously obtained via the OAuth1 3-Legged Authorization examples Step1 and Step2.
    let json = CkoJsonObject()!
    var success: Bool = json.loadFile("qa_data/tokens/etrade.json")
    if success != true {
        print("Failed to load OAuth1 token")
        return
    }

    http.oAuthToken = json.string(of: "oauth_token")
    http.oAuthTokenSecret = json.string(of: "oauth_token_secret")

    // See the ETrade v1 API documentation HERE.

    // Sample XML Request
    // Use this online tool to generate the code from sample XML: 
    // Generate Code to Create XML

    // <?xml version="1.0" encoding="UTF-8"?>
    // <PreviewOrderRequest>
    //    <orderType>EQ</orderType>
    //    <clientOrderId>sdfer333</clientOrderId>
    //    <Order>
    //       <allOrNone>false</allOrNone>
    //       <priceType>LIMIT</priceType>
    //       <orderTerm>GOOD_FOR_DAY</orderTerm>
    //       <marketSession>REGULAR</marketSession>
    //       <stopPrice />
    //       <limitPrice>188.51</limitPrice>
    //       <Instrument>
    //          <Product>
    //             <securityType>EQ</securityType>
    //             <symbol>FB</symbol>
    //          </Product>
    //          <orderAction>BUY</orderAction>
    //          <quantityType>QUANTITY</quantityType>
    //          <quantity>10</quantity>
    //       </Instrument>
    //    </Order>
    // </PreviewOrderRequest>

    let xml = CkoXml()!
    xml.tag = "PreviewOrderRequest"
    xml.updateChildContent("orderType", value: "EQ")
    xml.updateChildContent("clientOrderId", value: "sdfer333")
    xml.updateChildContent("Order|allOrNone", value: "false")
    xml.updateChildContent("Order|priceType", value: "LIMIT")
    xml.updateChildContent("Order|orderTerm", value: "GOOD_FOR_DAY")
    xml.updateChildContent("Order|marketSession", value: "REGULAR")
    xml.updateChildContent("Order|stopPrice", value: "")
    xml.updateChildContent("Order|limitPrice", value: "188.51")
    xml.updateChildContent("Order|Instrument|Product|securityType", value: "EQ")
    xml.updateChildContent("Order|Instrument|Product|symbol", value: "FB")
    xml.updateChildContent("Order|Instrument|orderAction", value: "BUY")
    xml.updateChildContent("Order|Instrument|quantityType", value: "QUANTITY")
    xml.updateChildContent("Order|Instrument|quantity", value: "10")

    var xmlContent: String? = xml.getXml()
    var endpointUrl: String? = "https://apisb.etrade.com/v1/accounts/{accountIdKey}/orders/preview"

    var resp: CkoHttpResponse? = http.postXml(endpointUrl, xmlDoc: xmlContent, charset: "utf-8")
    if http.lastMethodSuccess != true {
        print("\(http.lastErrorText!)")
        return
    }

    // A 200 status code indicates success.
    var statusCode: Int = resp!.statusCode.intValue
    print("statusCode = \(statusCode)")

    // Use the following online tool to generate parsing code from sample XML: 
    // Generate Parsing Code from XML

    // A sample XML response is shown below...

    xml.load(resp!.bodyStr)
    resp = nil

    var tagPath: String?
    var orderType: String?
    var totalOrderValue: String?
    var orderTerm: String?
    var priceType: String?
    var limitPrice: String?
    var stopPrice: Int
    var marketSession: String?
    var allOrNone: String?
    var symbol: String?
    var securityType: String?
    var symbolDescription: String?
    var orderAction: String?
    var quantityType: String?
    var quantity: Int
    var cancelQuantity: String?
    var reserveOrder: String?
    var reserveQuantity: String?
    var i: Int
    var count_i: Int
    var code: Int
    var description: String?
    var v_type: String?
    var egQual: String?
    var estimatedCommission: String?
    var estimatedTotalAmount: String?
    var netPrice: Int
    var netBid: Int
    var netAsk: Int
    var gcd: Int
    var previewId: Int
    var previewTime: String?
    var dstFlag: String?
    var accountId: Int
    var optionLevelCd: Int
    var marginLevelCd: String?
    var ahDisclosureFlag: String?
    var aoDisclosureFlag: String?
    var conditionalDisclosureFlag: String?
    var ehDisclosureFlag: String?
    var marginBuyingPower: String?

    orderType = xml.getChildContent("orderType")
    totalOrderValue = xml.getChildContent("totalOrderValue")
    orderTerm = xml.getChildContent("Order|orderTerm")
    priceType = xml.getChildContent("Order|priceType")
    limitPrice = xml.getChildContent("Order|limitPrice")
    stopPrice = xml.getChildIntValue("Order|stopPrice").intValue
    marketSession = xml.getChildContent("Order|marketSession")
    allOrNone = xml.getChildContent("Order|allOrNone")
    symbol = xml.getChildContent("Order|Instrument|Product|symbol")
    securityType = xml.getChildContent("Order|Instrument|Product|securityType")
    symbolDescription = xml.getChildContent("Order|Instrument|symbolDescription")
    orderAction = xml.getChildContent("Order|Instrument|orderAction")
    quantityType = xml.getChildContent("Order|Instrument|quantityType")
    quantity = xml.getChildIntValue("Order|Instrument|quantity").intValue
    cancelQuantity = xml.getChildContent("Order|Instrument|cancelQuantity")
    reserveOrder = xml.getChildContent("Order|Instrument|reserveOrder")
    reserveQuantity = xml.getChildContent("Order|Instrument|reserveQuantity")
    i = 0
    count_i = xml.numChildrenHavingTag("Order|messages|Message").intValue
    while i < count_i {
        xml.i = i
        code = xml.getChildIntValue("Order|messages|Message[i]|code").intValue
        description = xml.getChildContent("Order|messages|Message[i]|description")
        v_type = xml.getChildContent("Order|messages|Message[i]|type")
        i = i + 1
    }

    egQual = xml.getChildContent("Order|egQual")
    estimatedCommission = xml.getChildContent("Order|estimatedCommission")
    estimatedTotalAmount = xml.getChildContent("Order|estimatedTotalAmount")
    netPrice = xml.getChildIntValue("Order|netPrice").intValue
    netBid = xml.getChildIntValue("Order|netBid").intValue
    netAsk = xml.getChildIntValue("Order|netAsk").intValue
    gcd = xml.getChildIntValue("Order|gcd").intValue
    previewId = xml.getChildIntValue("PreviewIds|previewId").intValue
    previewTime = xml.getChildContent("previewTime")
    dstFlag = xml.getChildContent("dstFlag")
    accountId = xml.getChildIntValue("accountId").intValue
    optionLevelCd = xml.getChildIntValue("optionLevelCd").intValue
    marginLevelCd = xml.getChildContent("marginLevelCd")
    ahDisclosureFlag = xml.getChildContent("Disclosure|ahDisclosureFlag")
    aoDisclosureFlag = xml.getChildContent("Disclosure|aoDisclosureFlag")
    conditionalDisclosureFlag = xml.getChildContent("Disclosure|conditionalDisclosureFlag")
    ehDisclosureFlag = xml.getChildContent("Disclosure|ehDisclosureFlag")
    marginBuyingPower = xml.getChildContent("marginBuyingPower")

    // Sample XML Response

    // <?xml version="1.0" encoding="UTF-8"?>
    // <PreviewOrderResponse>
    //    <orderType>EQ</orderType>
    //    <totalOrderValue>1892.05</totalOrderValue>
    //    <Order>
    //       <orderTerm>GOOD_FOR_DAY</orderTerm>
    //       <priceType>LIMIT</priceType>
    //       <limitPrice>188.51</limitPrice>
    //       <stopPrice>0</stopPrice>
    //       <marketSession>REGULAR</marketSession>
    //       <allOrNone>false</allOrNone>
    //       <Instrument>
    //          <Product>
    //             <symbol>FB</symbol>
    //             <securityType>EQ</securityType>
    //          </Product>
    //          <symbolDescription>FACEBOOK INC CL A</symbolDescription>
    //          <orderAction>BUY</orderAction>
    //          <quantityType>QUANTITY</quantityType>
    //          <quantity>10</quantity>
    //          <cancelQuantity>0.0</cancelQuantity>
    //          <reserveOrder>true</reserveOrder>
    //          <reserveQuantity>0.0</reserveQuantity>
    //       </Instrument>
    //       <messages>
    //          <Message>
    //             <code>1042</code>
    //             <description>200|You have an existing open order for this security on the same side of the market. If you did not intend to place a second order for this security, please modify your order now.</description>
    //             <type>WARNING</type>
    //          </Message>
    //          <Message>
    //             <code>3093</code>
    //             <description>Position Concentrated.</description>
    //             <type>WARNING</type>
    //          </Message>
    //       </messages>
    //       <egQual>EG_QUAL_NOT_A_MARKET_ORDER</egQual>
    //       <estimatedCommission>6.95</estimatedCommission>
    //       <estimatedTotalAmount>1892.05</estimatedTotalAmount>
    //       <netPrice>0</netPrice>
    //       <netBid>0</netBid>
    //       <netAsk>0</netAsk>
    //       <gcd>0</gcd>
    //       <ratio />
    //    </Order>
    //    <PreviewIds>
    //       <previewId>1020563279</previewId>
    //    </PreviewIds>
    //    <previewTime>1529018458516</previewTime>
    //    <dstFlag>true</dstFlag>
    //    <accountId>84246841</accountId>
    //    <optionLevelCd>4</optionLevelCd>
    //    <marginLevelCd>MARGIN_TRADING_ALLOWED</marginLevelCd>
    //    <Disclosure>
    //       <ahDisclosureFlag>false</ahDisclosureFlag>
    //       <aoDisclosureFlag>false</aoDisclosureFlag>
    //       <conditionalDisclosureFlag>true</conditionalDisclosureFlag>
    //       <ehDisclosureFlag>false</ehDisclosureFlag>
    //    </Disclosure>
    //    <marginBuyingPower>86758.05</marginBuyingPower>
    // </PreviewOrderResponse>

}