BatchGetQueryExecution C Example
#include <C_CkRest.h>
#include <C_CkAuthAws.h>
#include <C_CkJsonObject.h>
#include <C_CkStringBuilder.h>
void ChilkatSample(void)
{
HCkRest rest;
BOOL success;
HCkAuthAws authAws;
HCkJsonObject json;
HCkStringBuilder sbRequestBody;
HCkStringBuilder sbResponseBody;
int respStatusCode;
HCkJsonObject jResp;
const char *EffectiveEngineVersion;
const char *SelectedEngineVersion;
const char *Query;
const char *Catalog;
const char *Database;
const char *QueryExecutionId;
const char *S3AclOption;
const char *EncryptionOption;
const char *KmsKey;
const char *ExpectedBucketOwner;
const char *OutputLocation;
const char *StatementType;
const char *DataManifestLocation;
int DataScannedInBytes;
int EngineExecutionTimeInMillis;
int QueryPlanningTimeInMillis;
int QueryQueueTimeInMillis;
int ServiceProcessingTimeInMillis;
int TotalExecutionTimeInMillis;
int ErrorCategory;
const char *ErrorMessage;
int ErrorType;
int Retryable;
int CompletionDateTime;
const char *State;
const char *StateChangeReason;
int SubmissionDateTime;
const char *WorkGroup;
const char *ErrorCode;
int i;
int count_i;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
rest = CkRest_Create();
authAws = CkAuthAws_Create();
CkAuthAws_putAccessKey(authAws,"AWS_ACCESS_KEY");
CkAuthAws_putSecretKey(authAws,"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.)
CkAuthAws_putRegion(authAws,"us-west-2");
CkAuthAws_putServiceName(authAws,"athena");
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
CkRest_SetAuthAws(rest,authAws);
// URL: https://athena.us-west-2.amazonaws.com/
// Use the same region as specified above.
success = CkRest_Connect(rest,"athena.us-west-2.amazonaws.com",443,TRUE,TRUE);
if (success != TRUE) {
printf("ConnectFailReason: %d\n",CkRest_getConnectFailReason(rest));
printf("%s\n",CkRest_lastErrorText(rest));
CkRest_Dispose(rest);
CkAuthAws_Dispose(authAws);
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 = CkJsonObject_Create();
CkJsonObject_UpdateString(json,"QueryExecutionIds[0]","string");
// The JSON request body created by the above code:
// {
// "QueryExecutionIds": [
// "string"
// ]
// }
CkRest_AddHeader(rest,"Content-Type","application/x-amz-json-1.1");
CkRest_AddHeader(rest,"X-Amz-Target","AmazonAthena.BatchGetQueryExecution");
sbRequestBody = CkStringBuilder_Create();
CkJsonObject_EmitSb(json,sbRequestBody);
sbResponseBody = CkStringBuilder_Create();
success = CkRest_FullRequestSb(rest,"POST","/",sbRequestBody,sbResponseBody);
if (success != TRUE) {
printf("%s\n",CkRest_lastErrorText(rest));
CkRest_Dispose(rest);
CkAuthAws_Dispose(authAws);
CkJsonObject_Dispose(json);
CkStringBuilder_Dispose(sbRequestBody);
CkStringBuilder_Dispose(sbResponseBody);
return;
}
respStatusCode = CkRest_getResponseStatusCode(rest);
printf("response status code = %d\n",respStatusCode);
if (respStatusCode != 200) {
printf("Response Header:\n");
printf("%s\n",CkRest_responseHeader(rest));
printf("Response Body:\n");
printf("%s\n",CkStringBuilder_getAsString(sbResponseBody));
CkRest_Dispose(rest);
CkAuthAws_Dispose(authAws);
CkJsonObject_Dispose(json);
CkStringBuilder_Dispose(sbRequestBody);
CkStringBuilder_Dispose(sbResponseBody);
return;
}
jResp = CkJsonObject_Create();
CkJsonObject_LoadSb(jResp,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.
i = 0;
count_i = CkJsonObject_SizeOfArray(jResp,"QueryExecutions");
while (i < count_i) {
CkJsonObject_putI(jResp,i);
EffectiveEngineVersion = CkJsonObject_stringOf(jResp,"QueryExecutions[i].EngineVersion.EffectiveEngineVersion");
SelectedEngineVersion = CkJsonObject_stringOf(jResp,"QueryExecutions[i].EngineVersion.SelectedEngineVersion");
Query = CkJsonObject_stringOf(jResp,"QueryExecutions[i].Query");
Catalog = CkJsonObject_stringOf(jResp,"QueryExecutions[i].QueryExecutionContext.Catalog");
Database = CkJsonObject_stringOf(jResp,"QueryExecutions[i].QueryExecutionContext.Database");
QueryExecutionId = CkJsonObject_stringOf(jResp,"QueryExecutions[i].QueryExecutionId");
S3AclOption = CkJsonObject_stringOf(jResp,"QueryExecutions[i].ResultConfiguration.AclConfiguration.S3AclOption");
EncryptionOption = CkJsonObject_stringOf(jResp,"QueryExecutions[i].ResultConfiguration.EncryptionConfiguration.EncryptionOption");
KmsKey = CkJsonObject_stringOf(jResp,"QueryExecutions[i].ResultConfiguration.EncryptionConfiguration.KmsKey");
ExpectedBucketOwner = CkJsonObject_stringOf(jResp,"QueryExecutions[i].ResultConfiguration.ExpectedBucketOwner");
OutputLocation = CkJsonObject_stringOf(jResp,"QueryExecutions[i].ResultConfiguration.OutputLocation");
StatementType = CkJsonObject_stringOf(jResp,"QueryExecutions[i].StatementType");
DataManifestLocation = CkJsonObject_stringOf(jResp,"QueryExecutions[i].Statistics.DataManifestLocation");
DataScannedInBytes = CkJsonObject_IntOf(jResp,"QueryExecutions[i].Statistics.DataScannedInBytes");
EngineExecutionTimeInMillis = CkJsonObject_IntOf(jResp,"QueryExecutions[i].Statistics.EngineExecutionTimeInMillis");
QueryPlanningTimeInMillis = CkJsonObject_IntOf(jResp,"QueryExecutions[i].Statistics.QueryPlanningTimeInMillis");
QueryQueueTimeInMillis = CkJsonObject_IntOf(jResp,"QueryExecutions[i].Statistics.QueryQueueTimeInMillis");
ServiceProcessingTimeInMillis = CkJsonObject_IntOf(jResp,"QueryExecutions[i].Statistics.ServiceProcessingTimeInMillis");
TotalExecutionTimeInMillis = CkJsonObject_IntOf(jResp,"QueryExecutions[i].Statistics.TotalExecutionTimeInMillis");
ErrorCategory = CkJsonObject_IntOf(jResp,"QueryExecutions[i].Status.AthenaError.ErrorCategory");
ErrorMessage = CkJsonObject_stringOf(jResp,"QueryExecutions[i].Status.AthenaError.ErrorMessage");
ErrorType = CkJsonObject_IntOf(jResp,"QueryExecutions[i].Status.AthenaError.ErrorType");
Retryable = CkJsonObject_IntOf(jResp,"QueryExecutions[i].Status.AthenaError.Retryable");
CompletionDateTime = CkJsonObject_IntOf(jResp,"QueryExecutions[i].Status.CompletionDateTime");
State = CkJsonObject_stringOf(jResp,"QueryExecutions[i].Status.State");
StateChangeReason = CkJsonObject_stringOf(jResp,"QueryExecutions[i].Status.StateChangeReason");
SubmissionDateTime = CkJsonObject_IntOf(jResp,"QueryExecutions[i].Status.SubmissionDateTime");
WorkGroup = CkJsonObject_stringOf(jResp,"QueryExecutions[i].WorkGroup");
i = i + 1;
}
i = 0;
count_i = CkJsonObject_SizeOfArray(jResp,"UnprocessedQueryExecutionIds");
while (i < count_i) {
CkJsonObject_putI(jResp,i);
ErrorCode = CkJsonObject_stringOf(jResp,"UnprocessedQueryExecutionIds[i].ErrorCode");
ErrorMessage = CkJsonObject_stringOf(jResp,"UnprocessedQueryExecutionIds[i].ErrorMessage");
QueryExecutionId = CkJsonObject_stringOf(jResp,"UnprocessedQueryExecutionIds[i].QueryExecutionId");
i = i + 1;
}
// A sample JSON response body parsed by the above code:
// {
// "QueryExecutions": [
// {
// "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"
// }
// ],
// "UnprocessedQueryExecutionIds": [
// {
// "ErrorCode": "string",
// "ErrorMessage": "string",
// "QueryExecutionId": "string"
// }
// ]
// }
CkRest_Dispose(rest);
CkAuthAws_Dispose(authAws);
CkJsonObject_Dispose(json);
CkStringBuilder_Dispose(sbRequestBody);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(jResp);
}
