Chilkat Online Tools

GetQueryResults Go Example

Athena

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

    rest := chilkat.NewRest()
    var success bool

    authAws := chilkat.NewAuthAws()
    authAws.SetAccessKey("AWS_ACCESS_KEY")
    authAws.SetSecretKey("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.SetRegion("us-west-2")
    authAws.SetServiceName("athena")
    // SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
    rest.SetAuthAws(authAws)

    // URL: https://athena.us-west-2.amazonaws.com/
    // Use the same region as specified above.
    success = rest.Connect("athena.us-west-2.amazonaws.com",443,true,true)
    if success != true {
        fmt.Println("ConnectFailReason: ", rest.ConnectFailReason())
        fmt.Println(rest.LastErrorText())
        rest.DisposeRest()
        authAws.DisposeAuthAws()
        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

    json := chilkat.NewJsonObject()
    json.UpdateInt("MaxResults",123)
    json.UpdateString("NextToken","string")
    json.UpdateString("QueryExecutionId","string")

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

    // {
    //   "MaxResults": number,
    //   "NextToken": "string",
    //   "QueryExecutionId": "string"
    // }

    rest.AddHeader("Content-Type","application/x-amz-json-1.1")
    rest.AddHeader("X-Amz-Target","AmazonAthena.GetQueryResults")

    sbRequestBody := chilkat.NewStringBuilder()
    json.EmitSb(sbRequestBody)
    sbResponseBody := chilkat.NewStringBuilder()
    success = rest.FullRequestSb("POST","/",sbRequestBody,sbResponseBody)
    if success != true {
        fmt.Println(rest.LastErrorText())
        rest.DisposeRest()
        authAws.DisposeAuthAws()
        json.DisposeJsonObject()
        sbRequestBody.DisposeStringBuilder()
        sbResponseBody.DisposeStringBuilder()
        return
    }

    respStatusCode := rest.ResponseStatusCode()
    fmt.Println("response status code = ", respStatusCode)
    if respStatusCode != 200 {
        fmt.Println("Response Header:")
        fmt.Println(rest.ResponseHeader())
        fmt.Println("Response Body:")
        fmt.Println(*sbResponseBody.GetAsString())
        rest.DisposeRest()
        authAws.DisposeAuthAws()
        json.DisposeJsonObject()
        sbRequestBody.DisposeStringBuilder()
        sbResponseBody.DisposeStringBuilder()
        return
    }

    jResp := chilkat.NewJsonObject()
    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 CaseSensitive int
CatalogName_DECLARATION
Label_DECLARATION
Name_DECLARATION
Nullable_DECLARATION
    var Precision int
    var Scale int
SchemaName_DECLARATION
TableName_DECLARATION
v_Type_DECLARATION
    var j int
    var count_j int
VarCharValue_DECLARATION

    NextToken := jResp.StringOf("NextToken")
    UpdateCount := jResp.IntOf("UpdateCount")
    i := 0
    count_i := jResp.SizeOfArray("ResultSet.ResultSetMetadata.ColumnInfo")
    for i < count_i {
        jResp.SetI(i)
        CaseSensitive = jResp.IntOf("ResultSet.ResultSetMetadata.ColumnInfo[i].CaseSensitive")
        CatalogName = *jResp.StringOf("ResultSet.ResultSetMetadata.ColumnInfo[i].CatalogName")
        Label = *jResp.StringOf("ResultSet.ResultSetMetadata.ColumnInfo[i].Label")
        Name = *jResp.StringOf("ResultSet.ResultSetMetadata.ColumnInfo[i].Name")
        Nullable = *jResp.StringOf("ResultSet.ResultSetMetadata.ColumnInfo[i].Nullable")
        Precision = jResp.IntOf("ResultSet.ResultSetMetadata.ColumnInfo[i].Precision")
        Scale = jResp.IntOf("ResultSet.ResultSetMetadata.ColumnInfo[i].Scale")
        SchemaName = *jResp.StringOf("ResultSet.ResultSetMetadata.ColumnInfo[i].SchemaName")
        TableName = *jResp.StringOf("ResultSet.ResultSetMetadata.ColumnInfo[i].TableName")
        v_Type = *jResp.StringOf("ResultSet.ResultSetMetadata.ColumnInfo[i].Type")
        i = i + 1
    }

    i = 0
    count_i = jResp.SizeOfArray("ResultSet.Rows")
    for i < count_i {
        jResp.SetI(i)
        j = 0
        count_j = jResp.SizeOfArray("ResultSet.Rows[i].Data")
        for j < count_j {
            jResp.SetJ(j)
            VarCharValue = *jResp.StringOf("ResultSet.Rows[i].Data[j].VarCharValue")
            j = j + 1
        }

        i = i + 1
    }

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

    // {
    //   "NextToken": "string",
    //   "ResultSet": {
    //     "ResultSetMetadata": {
    //       "ColumnInfo": [
    //         {
    //           "CaseSensitive": boolean,
    //           "CatalogName": "string",
    //           "Label": "string",
    //           "Name": "string",
    //           "Nullable": "string",
    //           "Precision": number,
    //           "Scale": number,
    //           "SchemaName": "string",
    //           "TableName": "string",
    //           "Type": "string"
    //         }
    //       ]
    //     },
    //     "Rows": [
    //       {
    //         "Data": [
    //           {
    //             "VarCharValue": "string"
    //           }
    //         ]
    //       }
    //     ]
    //   },
    //   "UpdateCount": number
    // }

    rest.DisposeRest()
    authAws.DisposeAuthAws()
    json.DisposeJsonObject()
    sbRequestBody.DisposeStringBuilder()
    sbResponseBody.DisposeStringBuilder()
    jResp.DisposeJsonObject()