GetQueryExecution C++ Example
#include <CkRest.h>
#include <CkAuthAws.h>
#include <CkJsonObject.h>
#include <CkStringBuilder.h>
void ChilkatSample(void)
{
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
CkRest rest;
bool success;
CkAuthAws authAws;
authAws.put_AccessKey("AWS_ACCESS_KEY");
authAws.put_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.put_Region("us-west-2");
authAws.put_ServiceName("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) {
std::cout << "ConnectFailReason: " << rest.get_ConnectFailReason() << "\r\n";
std::cout << rest.lastErrorText() << "\r\n";
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
CkJsonObject json;
json.UpdateString("QueryExecutionId","string");
// The JSON request body created by the above code:
// {
// "QueryExecutionId": "string"
// }
rest.AddHeader("Content-Type","application/x-amz-json-1.1");
rest.AddHeader("X-Amz-Target","AmazonAthena.GetQueryExecution");
CkStringBuilder sbRequestBody;
json.EmitSb(sbRequestBody);
CkStringBuilder sbResponseBody;
success = rest.FullRequestSb("POST","/",sbRequestBody,sbResponseBody);
if (success != true) {
std::cout << rest.lastErrorText() << "\r\n";
return;
}
int respStatusCode = rest.get_ResponseStatusCode();
std::cout << "response status code = " << respStatusCode << "\r\n";
if (respStatusCode != 200) {
std::cout << "Response Header:" << "\r\n";
std::cout << rest.responseHeader() << "\r\n";
std::cout << "Response Body:" << "\r\n";
std::cout << sbResponseBody.getAsString() << "\r\n";
return;
}
CkJsonObject jResp;
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
// Chilkat functions returning "const char *" return a pointer to temporary internal memory owned and managed by Chilkat.
// See this example explaining how this memory should be used: const char * functions.
const char *EffectiveEngineVersion = jResp.stringOf("QueryExecution.EngineVersion.EffectiveEngineVersion");
const char *SelectedEngineVersion = jResp.stringOf("QueryExecution.EngineVersion.SelectedEngineVersion");
const char *Query = jResp.stringOf("QueryExecution.Query");
const char *Catalog = jResp.stringOf("QueryExecution.QueryExecutionContext.Catalog");
const char *Database = jResp.stringOf("QueryExecution.QueryExecutionContext.Database");
const char *QueryExecutionId = jResp.stringOf("QueryExecution.QueryExecutionId");
const char *S3AclOption = jResp.stringOf("QueryExecution.ResultConfiguration.AclConfiguration.S3AclOption");
const char *EncryptionOption = jResp.stringOf("QueryExecution.ResultConfiguration.EncryptionConfiguration.EncryptionOption");
const char *KmsKey = jResp.stringOf("QueryExecution.ResultConfiguration.EncryptionConfiguration.KmsKey");
const char *ExpectedBucketOwner = jResp.stringOf("QueryExecution.ResultConfiguration.ExpectedBucketOwner");
const char *OutputLocation = jResp.stringOf("QueryExecution.ResultConfiguration.OutputLocation");
const char *StatementType = jResp.stringOf("QueryExecution.StatementType");
const char *DataManifestLocation = jResp.stringOf("QueryExecution.Statistics.DataManifestLocation");
int DataScannedInBytes = jResp.IntOf("QueryExecution.Statistics.DataScannedInBytes");
int EngineExecutionTimeInMillis = jResp.IntOf("QueryExecution.Statistics.EngineExecutionTimeInMillis");
int QueryPlanningTimeInMillis = jResp.IntOf("QueryExecution.Statistics.QueryPlanningTimeInMillis");
int QueryQueueTimeInMillis = jResp.IntOf("QueryExecution.Statistics.QueryQueueTimeInMillis");
int ServiceProcessingTimeInMillis = jResp.IntOf("QueryExecution.Statistics.ServiceProcessingTimeInMillis");
int TotalExecutionTimeInMillis = jResp.IntOf("QueryExecution.Statistics.TotalExecutionTimeInMillis");
int ErrorCategory = jResp.IntOf("QueryExecution.Status.AthenaError.ErrorCategory");
const char *ErrorMessage = jResp.stringOf("QueryExecution.Status.AthenaError.ErrorMessage");
int ErrorType = jResp.IntOf("QueryExecution.Status.AthenaError.ErrorType");
int Retryable = jResp.IntOf("QueryExecution.Status.AthenaError.Retryable");
int CompletionDateTime = jResp.IntOf("QueryExecution.Status.CompletionDateTime");
const char *State = jResp.stringOf("QueryExecution.Status.State");
const char *StateChangeReason = jResp.stringOf("QueryExecution.Status.StateChangeReason");
int SubmissionDateTime = jResp.IntOf("QueryExecution.Status.SubmissionDateTime");
const char *WorkGroup = jResp.stringOf("QueryExecution.WorkGroup");
// A sample JSON response body parsed by the above code:
// {
// "QueryExecution": {
// "EngineVersion": {
// "EffectiveEngineVersion": "string",
// "SelectedEngineVersion": "string"
// },
// "Query": "string",
// "QueryExecutionContext": {
// "Catalog": "string",
// "Database": "string"
// },
// "QueryExecutionId": "string",
// "ResultConfiguration": {
// "AclConfiguration": {
// "S3AclOption": "string"
// },
// "EncryptionConfiguration": {
// "EncryptionOption": "string",
// "KmsKey": "string"
// },
// "ExpectedBucketOwner": "string",
// "OutputLocation": "string"
// },
// "StatementType": "string",
// "Statistics": {
// "DataManifestLocation": "string",
// "DataScannedInBytes": number,
// "EngineExecutionTimeInMillis": number,
// "QueryPlanningTimeInMillis": number,
// "QueryQueueTimeInMillis": number,
// "ServiceProcessingTimeInMillis": number,
// "TotalExecutionTimeInMillis": number
// },
// "Status": {
// "AthenaError": {
// "ErrorCategory": number,
// "ErrorMessage": "string",
// "ErrorType": number,
// "Retryable": boolean
// },
// "CompletionDateTime": number,
// "State": "string",
// "StateChangeReason": "string",
// "SubmissionDateTime": number
// },
// "WorkGroup": "string"
// }
// }
}
