DescribeTable 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;
const wchar_t *columnDefault;
int isCaseSensitive;
int isCurrency;
int isSigned;
const wchar_t *label;
int length;
const wchar_t *name;
int nullable;
int precision;
int scale;
const wchar_t *schemaName;
const wchar_t *tableName;
const wchar_t *typeName;
const wchar_t *NextToken;
const wchar_t *TableName;
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"redshift-data");
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
CkRestW_SetAuthAws(rest,authAws);
// URL: https://redshift-data.us-west-2.amazonaws.com/
// Use the same region as specified above.
success = CkRestW_Connect(rest,L"redshift-data.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"ClusterIdentifier",L"string");
CkJsonObjectW_UpdateString(json,L"ConnectedDatabase",L"string");
CkJsonObjectW_UpdateString(json,L"Database",L"string");
CkJsonObjectW_UpdateString(json,L"DbUser",L"string");
CkJsonObjectW_UpdateInt(json,L"MaxResults",123);
CkJsonObjectW_UpdateString(json,L"NextToken",L"string");
CkJsonObjectW_UpdateString(json,L"Schema",L"string");
CkJsonObjectW_UpdateString(json,L"SecretArn",L"string");
CkJsonObjectW_UpdateString(json,L"Table",L"string");
// The JSON request body created by the above code:
// {
// "ClusterIdentifier": "string",
// "ConnectedDatabase": "string",
// "Database": "string",
// "DbUser": "string",
// "MaxResults": number,
// "NextToken": "string",
// "Schema": "string",
// "SecretArn": "string",
// "Table": "string"
// }
CkRestW_AddHeader(rest,L"Content-Type",L"application/x-amz-json-1.1");
CkRestW_AddHeader(rest,L"X-Amz-Target",L"RedshiftData.DescribeTable");
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");
TableName = CkJsonObjectW_stringOf(jResp,L"TableName");
i = 0;
count_i = CkJsonObjectW_SizeOfArray(jResp,L"ColumnList");
while (i < count_i) {
CkJsonObjectW_putI(jResp,i);
columnDefault = CkJsonObjectW_stringOf(jResp,L"ColumnList[i].columnDefault");
isCaseSensitive = CkJsonObjectW_IntOf(jResp,L"ColumnList[i].isCaseSensitive");
isCurrency = CkJsonObjectW_IntOf(jResp,L"ColumnList[i].isCurrency");
isSigned = CkJsonObjectW_IntOf(jResp,L"ColumnList[i].isSigned");
label = CkJsonObjectW_stringOf(jResp,L"ColumnList[i].label");
length = CkJsonObjectW_IntOf(jResp,L"ColumnList[i].length");
name = CkJsonObjectW_stringOf(jResp,L"ColumnList[i].name");
nullable = CkJsonObjectW_IntOf(jResp,L"ColumnList[i].nullable");
precision = CkJsonObjectW_IntOf(jResp,L"ColumnList[i].precision");
scale = CkJsonObjectW_IntOf(jResp,L"ColumnList[i].scale");
schemaName = CkJsonObjectW_stringOf(jResp,L"ColumnList[i].schemaName");
tableName = CkJsonObjectW_stringOf(jResp,L"ColumnList[i].tableName");
typeName = CkJsonObjectW_stringOf(jResp,L"ColumnList[i].typeName");
i = i + 1;
}
// A sample JSON response body parsed by the above code:
// {
// "ColumnList": [
// {
// "columnDefault": "string",
// "isCaseSensitive": boolean,
// "isCurrency": boolean,
// "isSigned": boolean,
// "label": "string",
// "length": number,
// "name": "string",
// "nullable": number,
// "precision": number,
// "scale": number,
// "schemaName": "string",
// "tableName": "string",
// "typeName": "string"
// }
// ],
// "NextToken": "string",
// "TableName": "string"
// }
CkRestW_Dispose(rest);
CkAuthAwsW_Dispose(authAws);
CkJsonObjectW_Dispose(json);
CkStringBuilderW_Dispose(sbRequestBody);
CkStringBuilderW_Dispose(sbResponseBody);
CkJsonObjectW_Dispose(jResp);
}
