Chilkat Online Tools

BatchGetQueryExecution unicodeC Example

Athena

#include <C_CkRestW.h>
#include <C_CkAuthAwsW.h>
#include <C_CkJsonObjectW.h>
#include <C_CkStringBuilderW.h>

void ChilkatSample(void)
    {
    HCkRestW rest;
    BOOL success;
    HCkAuthAwsW authAws;
    HCkJsonObjectW json;
    HCkStringBuilderW sbRequestBody;
    HCkStringBuilderW sbResponseBody;
    int respStatusCode;
    HCkJsonObjectW jResp;
    const wchar_t *EffectiveEngineVersion;
    const wchar_t *SelectedEngineVersion;
    const wchar_t *Query;
    const wchar_t *Catalog;
    const wchar_t *Database;
    const wchar_t *QueryExecutionId;
    const wchar_t *S3AclOption;
    const wchar_t *EncryptionOption;
    const wchar_t *KmsKey;
    const wchar_t *ExpectedBucketOwner;
    const wchar_t *OutputLocation;
    const wchar_t *StatementType;
    const wchar_t *DataManifestLocation;
    int DataScannedInBytes;
    int EngineExecutionTimeInMillis;
    int QueryPlanningTimeInMillis;
    int QueryQueueTimeInMillis;
    int ServiceProcessingTimeInMillis;
    int TotalExecutionTimeInMillis;
    int ErrorCategory;
    const wchar_t *ErrorMessage;
    int ErrorType;
    int Retryable;
    int CompletionDateTime;
    const wchar_t *State;
    const wchar_t *StateChangeReason;
    int SubmissionDateTime;
    const wchar_t *WorkGroup;
    const wchar_t *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 = CkRestW_Create();

    authAws = CkAuthAwsW_Create();
    CkAuthAwsW_putAccessKey(authAws,L"AWS_ACCESS_KEY");
    CkAuthAwsW_putSecretKey(authAws,L"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.)
    CkAuthAwsW_putRegion(authAws,L"us-west-2");
    CkAuthAwsW_putServiceName(authAws,L"athena");
    // SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
    CkRestW_SetAuthAws(rest,authAws);

    // URL: https://athena.us-west-2.amazonaws.com/
    // Use the same region as specified above.
    success = CkRestW_Connect(rest,L"athena.us-west-2.amazonaws.com",443,TRUE,TRUE);
    if (success != TRUE) {
        wprintf(L"ConnectFailReason: %d\n",CkRestW_getConnectFailReason(rest));
        wprintf(L"%s\n",CkRestW_lastErrorText(rest));
        CkRestW_Dispose(rest);
        CkAuthAwsW_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 = CkJsonObjectW_Create();
    CkJsonObjectW_UpdateString(json,L"QueryExecutionIds[0]",L"string");

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

    // {
    //   "QueryExecutionIds": [
    //     "string"
    //   ]
    // }

    CkRestW_AddHeader(rest,L"Content-Type",L"application/x-amz-json-1.1");
    CkRestW_AddHeader(rest,L"X-Amz-Target",L"AmazonAthena.BatchGetQueryExecution");

    sbRequestBody = CkStringBuilderW_Create();
    CkJsonObjectW_EmitSb(json,sbRequestBody);
    sbResponseBody = CkStringBuilderW_Create();
    success = CkRestW_FullRequestSb(rest,L"POST",L"/",sbRequestBody,sbResponseBody);
    if (success != TRUE) {
        wprintf(L"%s\n",CkRestW_lastErrorText(rest));
        CkRestW_Dispose(rest);
        CkAuthAwsW_Dispose(authAws);
        CkJsonObjectW_Dispose(json);
        CkStringBuilderW_Dispose(sbRequestBody);
        CkStringBuilderW_Dispose(sbResponseBody);
        return;
    }

    respStatusCode = CkRestW_getResponseStatusCode(rest);
    wprintf(L"response status code = %d\n",respStatusCode);
    if (respStatusCode != 200) {
        wprintf(L"Response Header:\n");
        wprintf(L"%s\n",CkRestW_responseHeader(rest));
        wprintf(L"Response Body:\n");
        wprintf(L"%s\n",CkStringBuilderW_getAsString(sbResponseBody));
        CkRestW_Dispose(rest);
        CkAuthAwsW_Dispose(authAws);
        CkJsonObjectW_Dispose(json);
        CkStringBuilderW_Dispose(sbRequestBody);
        CkStringBuilderW_Dispose(sbResponseBody);
        return;
    }

    jResp = CkJsonObjectW_Create();
    CkJsonObjectW_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 = CkJsonObjectW_SizeOfArray(jResp,L"QueryExecutions");
    while (i < count_i) {
        CkJsonObjectW_putI(jResp,i);
        EffectiveEngineVersion = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].EngineVersion.EffectiveEngineVersion");
        SelectedEngineVersion = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].EngineVersion.SelectedEngineVersion");
        Query = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].Query");
        Catalog = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].QueryExecutionContext.Catalog");
        Database = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].QueryExecutionContext.Database");
        QueryExecutionId = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].QueryExecutionId");
        S3AclOption = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].ResultConfiguration.AclConfiguration.S3AclOption");
        EncryptionOption = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].ResultConfiguration.EncryptionConfiguration.EncryptionOption");
        KmsKey = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].ResultConfiguration.EncryptionConfiguration.KmsKey");
        ExpectedBucketOwner = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].ResultConfiguration.ExpectedBucketOwner");
        OutputLocation = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].ResultConfiguration.OutputLocation");
        StatementType = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].StatementType");
        DataManifestLocation = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].Statistics.DataManifestLocation");
        DataScannedInBytes = CkJsonObjectW_IntOf(jResp,L"QueryExecutions[i].Statistics.DataScannedInBytes");
        EngineExecutionTimeInMillis = CkJsonObjectW_IntOf(jResp,L"QueryExecutions[i].Statistics.EngineExecutionTimeInMillis");
        QueryPlanningTimeInMillis = CkJsonObjectW_IntOf(jResp,L"QueryExecutions[i].Statistics.QueryPlanningTimeInMillis");
        QueryQueueTimeInMillis = CkJsonObjectW_IntOf(jResp,L"QueryExecutions[i].Statistics.QueryQueueTimeInMillis");
        ServiceProcessingTimeInMillis = CkJsonObjectW_IntOf(jResp,L"QueryExecutions[i].Statistics.ServiceProcessingTimeInMillis");
        TotalExecutionTimeInMillis = CkJsonObjectW_IntOf(jResp,L"QueryExecutions[i].Statistics.TotalExecutionTimeInMillis");
        ErrorCategory = CkJsonObjectW_IntOf(jResp,L"QueryExecutions[i].Status.AthenaError.ErrorCategory");
        ErrorMessage = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].Status.AthenaError.ErrorMessage");
        ErrorType = CkJsonObjectW_IntOf(jResp,L"QueryExecutions[i].Status.AthenaError.ErrorType");
        Retryable = CkJsonObjectW_IntOf(jResp,L"QueryExecutions[i].Status.AthenaError.Retryable");
        CompletionDateTime = CkJsonObjectW_IntOf(jResp,L"QueryExecutions[i].Status.CompletionDateTime");
        State = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].Status.State");
        StateChangeReason = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].Status.StateChangeReason");
        SubmissionDateTime = CkJsonObjectW_IntOf(jResp,L"QueryExecutions[i].Status.SubmissionDateTime");
        WorkGroup = CkJsonObjectW_stringOf(jResp,L"QueryExecutions[i].WorkGroup");
        i = i + 1;
    }

    i = 0;
    count_i = CkJsonObjectW_SizeOfArray(jResp,L"UnprocessedQueryExecutionIds");
    while (i < count_i) {
        CkJsonObjectW_putI(jResp,i);
        ErrorCode = CkJsonObjectW_stringOf(jResp,L"UnprocessedQueryExecutionIds[i].ErrorCode");
        ErrorMessage = CkJsonObjectW_stringOf(jResp,L"UnprocessedQueryExecutionIds[i].ErrorMessage");
        QueryExecutionId = CkJsonObjectW_stringOf(jResp,L"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"
    //     }
    //   ]
    // }


    CkRestW_Dispose(rest);
    CkAuthAwsW_Dispose(authAws);
    CkJsonObjectW_Dispose(json);
    CkStringBuilderW_Dispose(sbRequestBody);
    CkStringBuilderW_Dispose(sbResponseBody);
    CkJsonObjectW_Dispose(jResp);

    }