(Unicode C) Amazon Cognito - List Users

See more Amazon Cognito Examples

Lists the users in the Amazon Cognito user pool.

For more information, see https://docs.aws.amazon.com/cognito-user-identity-pools/latest/APIReference/API_ListUsers.html

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#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;
    BOOL bTls;
    int port;
    BOOL bAutoReconnect;
    HCkJsonObjectW json;
    HCkStringBuilderW sbRequestBody;
    HCkStringBuilderW sbResponseBody;
    int respStatusCode;
    HCkJsonObjectW jsonResponse;
    BOOL Enabled;
    const wchar_t *UserCreateDate;
    const wchar_t *UserLastModifiedDate;
    const wchar_t *UserStatus;
    const wchar_t *Username;
    int j;
    int count_j;
    const wchar_t *Name;
    const wchar_t *Value;
    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"cognito-idp");
    // SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
    CkRestW_SetAuthAws(rest,authAws);

    // URL: https://cognito-idp.us-west-2.amazonaws.com/
    bTls = TRUE;
    port = 443;
    bAutoReconnect = TRUE;
    // Use the same region as specified above.
    success = CkRestW_Connect(rest,L"cognito-idp.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);
    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;
    }

    // Note: The above code does not need to be repeatedly called for each REST request.
    // The rest object can be setup once, and then many requests can be sent.  Chilkat will automatically
    // reconnect within a FullRequest* method as needed.  It is only the very first connection that is explicitly
    // made via the Connect method.

    // The following JSON is sent in the request body.

    // {
    //     "UserPoolId": "us-west-2_yt6WzO3SA"
    // }
    // 

    json = CkJsonObjectW_Create();
    CkJsonObjectW_UpdateString(json,L"UserPoolId",L"us-west-2_yt6WzO3SA");

    CkRestW_AddHeader(rest,L"Content-Type",L"application/x-amz-json-1.0");
    CkRestW_AddHeader(rest,L"X-Amz-Target",L"AWSCognitoIdentityProviderService.ListUsers");
    CkRestW_AddHeader(rest,L"Accept-Encoding",L"identity");

    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 Status Code = %d\n",respStatusCode);
        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;
    }

    jsonResponse = CkJsonObjectW_Create();
    CkJsonObjectW_LoadSb(jsonResponse,sbResponseBody);

    CkJsonObjectW_putEmitCompact(jsonResponse,FALSE);
    wprintf(L"%s\n",CkJsonObjectW_emit(jsonResponse));

    // Sample JSON response:
    // (Sample code for parsing the JSON response is shown below)

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    // {
    //   "Users": [
    //     {
    //       "Attributes": [
    //         {
    //           "Name": "sub",
    //           "Value": "1874cf28-00d3-4ac1-a24a-68dcb0cecf09"
    //         },
    //         {
    //           "Name": "email_verified",
    //           "Value": "true"
    //         },
    //         {
    //           "Name": "phone_number_verified",
    //           "Value": "true"
    //         },
    //         {
    //           "Name": "phone_number",
    //           "Value": "+16302581871"
    //         },
    //         {
    //           "Name": "email",
    //           "Value": "admin@chilkatsoft.com"
    //         }
    //       ],
    //       "Enabled": true,
    //       "UserCreateDate": 1.636404386657E9,
    //       "UserLastModifiedDate": 1.636404386657E9,
    //       "UserStatus": "FORCE_CHANGE_PASSWORD",
    //       "Username": "matt"
    //     },
    //     {
    // 	. . .
    //     }
    //   ]
    // }

    i = 0;
    count_i = CkJsonObjectW_SizeOfArray(jsonResponse,L"Users");
    while (i < count_i) {
        CkJsonObjectW_putI(jsonResponse,i);
        Enabled = CkJsonObjectW_BoolOf(jsonResponse,L"Users[i].Enabled");
        UserCreateDate = CkJsonObjectW_stringOf(jsonResponse,L"Users[i].UserCreateDate");
        UserLastModifiedDate = CkJsonObjectW_stringOf(jsonResponse,L"Users[i].UserLastModifiedDate");
        UserStatus = CkJsonObjectW_stringOf(jsonResponse,L"Users[i].UserStatus");
        Username = CkJsonObjectW_stringOf(jsonResponse,L"Users[i].Username");
        j = 0;
        count_j = CkJsonObjectW_SizeOfArray(jsonResponse,L"Users[i].Attributes");
        while (j < count_j) {
            CkJsonObjectW_putJ(jsonResponse,j);
            Name = CkJsonObjectW_stringOf(jsonResponse,L"Users[i].Attributes[j].Name");
            Value = CkJsonObjectW_stringOf(jsonResponse,L"Users[i].Attributes[j].Value");
            j = j + 1;
        }

        i = i + 1;
    }



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

    }