ListTableMetadata unicodeC Example
#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;
int CreateTime;
int LastAccessTime;
const wchar_t *Name;
const wchar_t *v_String;
const wchar_t *TableType;
int j;
int count_j;
const wchar_t *Comment;
const wchar_t *v_Type;
const wchar_t *NextToken;
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"CatalogName",L"string");
CkJsonObjectW_UpdateString(json,L"DatabaseName",L"string");
CkJsonObjectW_UpdateString(json,L"Expression",L"string");
CkJsonObjectW_UpdateInt(json,L"MaxResults",123);
CkJsonObjectW_UpdateString(json,L"NextToken",L"string");
// The JSON request body created by the above code:
// {
// "CatalogName": "string",
// "DatabaseName": "string",
// "Expression": "string",
// "MaxResults": number,
// "NextToken": "string"
// }
CkRestW_AddHeader(rest,L"Content-Type",L"application/x-amz-json-1.1");
CkRestW_AddHeader(rest,L"X-Amz-Target",L"AmazonAthena.ListTableMetadata");
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.
NextToken = CkJsonObjectW_stringOf(jResp,L"NextToken");
i = 0;
count_i = CkJsonObjectW_SizeOfArray(jResp,L"TableMetadataList");
while (i < count_i) {
CkJsonObjectW_putI(jResp,i);
CreateTime = CkJsonObjectW_IntOf(jResp,L"TableMetadataList[i].CreateTime");
LastAccessTime = CkJsonObjectW_IntOf(jResp,L"TableMetadataList[i].LastAccessTime");
Name = CkJsonObjectW_stringOf(jResp,L"TableMetadataList[i].Name");
v_String = CkJsonObjectW_stringOf(jResp,L"TableMetadataList[i].Parameters.string");
TableType = CkJsonObjectW_stringOf(jResp,L"TableMetadataList[i].TableType");
j = 0;
count_j = CkJsonObjectW_SizeOfArray(jResp,L"TableMetadataList[i].Columns");
while (j < count_j) {
CkJsonObjectW_putJ(jResp,j);
Comment = CkJsonObjectW_stringOf(jResp,L"TableMetadataList[i].Columns[j].Comment");
Name = CkJsonObjectW_stringOf(jResp,L"TableMetadataList[i].Columns[j].Name");
v_Type = CkJsonObjectW_stringOf(jResp,L"TableMetadataList[i].Columns[j].Type");
j = j + 1;
}
j = 0;
count_j = CkJsonObjectW_SizeOfArray(jResp,L"TableMetadataList[i].PartitionKeys");
while (j < count_j) {
CkJsonObjectW_putJ(jResp,j);
Comment = CkJsonObjectW_stringOf(jResp,L"TableMetadataList[i].PartitionKeys[j].Comment");
Name = CkJsonObjectW_stringOf(jResp,L"TableMetadataList[i].PartitionKeys[j].Name");
v_Type = CkJsonObjectW_stringOf(jResp,L"TableMetadataList[i].PartitionKeys[j].Type");
j = j + 1;
}
i = i + 1;
}
// A sample JSON response body parsed by the above code:
// {
// "NextToken": "string",
// "TableMetadataList": [
// {
// "Columns": [
// {
// "Comment": "string",
// "Name": "string",
// "Type": "string"
// }
// ],
// "CreateTime": number,
// "LastAccessTime": number,
// "Name": "string",
// "Parameters": {
// "string": "string"
// },
// "PartitionKeys": [
// {
// "Comment": "string",
// "Name": "string",
// "Type": "string"
// }
// ],
// "TableType": "string"
// }
// ]
// }
CkRestW_Dispose(rest);
CkAuthAwsW_Dispose(authAws);
CkJsonObjectW_Dispose(json);
CkStringBuilderW_Dispose(sbRequestBody);
CkStringBuilderW_Dispose(sbResponseBody);
CkJsonObjectW_Dispose(jResp);
}
