Chilkat Online Tools

DescribeStatement Swift Example

Amazon Redshift Data API

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

    let rest = CkoRest()
    var success: Bool

    let authAws = CkoAuthAws()
    authAws.AccessKey = "AWS_ACCESS_KEY"
    authAws.SecretKey = "AWS_SECRET_KEY"

    // Don't forget to change the region to your particular region. (Also make the same change in the call to Connect below.)
    authAws.Region = "us-west-2"
    authAws.ServiceName = "redshift-data"
    // SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
    rest.SetAuthAws(authAws)

    // URL: https://redshift-data.us-west-2.amazonaws.com/
    // Use the same region as specified above.
    success = rest.Connect("redshift-data.us-west-2.amazonaws.com", port: 443, tls: true, autoReconnect: true)
    if success != true {
        print("ConnectFailReason: \(rest.ConnectFailReason.intValue)")
        print("\(rest.LastErrorText)")
        return
    }

    // The following code creates the JSON request body.
    // The JSON created by this code is shown below.

    // Use this online tool to generate code from sample JSON:
    // Generate Code to Create JSON

    let json = CkoJsonObject()
    json.UpdateString("Id", value: "string")

    // The JSON request body created by the above code:

    // {
    //   "Id": "string"
    // }

    rest.AddHeader("Content-Type", value: "application/x-amz-json-1.1")
    rest.AddHeader("X-Amz-Target", value: "RedshiftData.DescribeStatement")

    let sbRequestBody = CkoStringBuilder()
    json.EmitSb(sbRequestBody)
    let sbResponseBody = CkoStringBuilder()
    success = rest.FullRequestSb("POST", uriPath: "/", requestBody: sbRequestBody, responseBody: sbResponseBody)
    if success != true {
        print("\(rest.LastErrorText)")
        return
    }

    var respStatusCode: Int = rest.ResponseStatusCode.intValue
    print("response status code = \(respStatusCode)")
    if respStatusCode != 200 {
        print("Response Header:")
        print("\(rest.ResponseHeader)")
        print("Response Body:")
        print("\(sbResponseBody.GetAsString())")
        return
    }

    let jResp = CkoJsonObject()
    jResp.LoadSb(sbResponseBody)

    // The following code parses the JSON response.
    // A sample JSON response is shown below the sample code.

    // Use this online tool to generate parsing code from sample JSON:
    // Generate Parsing Code from JSON

    var name: String?
    var value: String?

    var ClusterIdentifier: String? = jResp.StringOf("ClusterIdentifier")
    var CreatedAt: Int = jResp.IntOf("CreatedAt").intValue
    var Database: String? = jResp.StringOf("Database")
    var DbUser: String? = jResp.StringOf("DbUser")
    var Duration: Int = jResp.IntOf("Duration").intValue
    var Error: String? = jResp.StringOf("Error")
    var HasResultSet: Int = jResp.IntOf("HasResultSet").intValue
    var Id: String? = jResp.StringOf("Id")
    var QueryString: String? = jResp.StringOf("QueryString")
    var RedshiftPid: Int = jResp.IntOf("RedshiftPid").intValue
    var RedshiftQueryId: Int = jResp.IntOf("RedshiftQueryId").intValue
    var ResultRows: Int = jResp.IntOf("ResultRows").intValue
    var ResultSize: Int = jResp.IntOf("ResultSize").intValue
    var SecretArn: String? = jResp.StringOf("SecretArn")
    var Status: String? = jResp.StringOf("Status")
    var UpdatedAt: Int = jResp.IntOf("UpdatedAt").intValue
    var i: Int = 0
    var count_i: Int = jResp.SizeOfArray("QueryParameters").intValue
    while i < count_i {
        jResp.I = i
        name = jResp.StringOf("QueryParameters[i].name")
        value = jResp.StringOf("QueryParameters[i].value")
        i = i + 1
    }

    i = 0
    count_i = jResp.SizeOfArray("SubStatements").intValue
    while i < count_i {
        jResp.I = i
        CreatedAt = jResp.IntOf("SubStatements[i].CreatedAt").intValue
        Duration = jResp.IntOf("SubStatements[i].Duration").intValue
        Error = jResp.StringOf("SubStatements[i].Error")
        HasResultSet = jResp.IntOf("SubStatements[i].HasResultSet").intValue
        Id = jResp.StringOf("SubStatements[i].Id")
        QueryString = jResp.StringOf("SubStatements[i].QueryString")
        RedshiftQueryId = jResp.IntOf("SubStatements[i].RedshiftQueryId").intValue
        ResultRows = jResp.IntOf("SubStatements[i].ResultRows").intValue
        ResultSize = jResp.IntOf("SubStatements[i].ResultSize").intValue
        Status = jResp.StringOf("SubStatements[i].Status")
        UpdatedAt = jResp.IntOf("SubStatements[i].UpdatedAt").intValue
        i = i + 1
    }

    // A sample JSON response body parsed by the above code:

    // {
    //   "ClusterIdentifier": "string",
    //   "CreatedAt": number,
    //   "Database": "string",
    //   "DbUser": "string",
    //   "Duration": number,
    //   "Error": "string",
    //   "HasResultSet": boolean,
    //   "Id": "string",
    //   "QueryParameters": [
    //     {
    //       "name": "string",
    //       "value": "string"
    //     }
    //   ],
    //   "QueryString": "string",
    //   "RedshiftPid": number,
    //   "RedshiftQueryId": number,
    //   "ResultRows": number,
    //   "ResultSize": number,
    //   "SecretArn": "string",
    //   "Status": "string",
    //   "SubStatements": [
    //     {
    //       "CreatedAt": number,
    //       "Duration": number,
    //       "Error": "string",
    //       "HasResultSet": boolean,
    //       "Id": "string",
    //       "QueryString": "string",
    //       "RedshiftQueryId": number,
    //       "ResultRows": number,
    //       "ResultSize": number,
    //       "Status": "string",
    //       "UpdatedAt": number
    //     }
    //   ],
    //   "UpdatedAt": number
    // }

}