(Objective-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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#import <CkoRest.h>
#import <CkoAuthAws.h>
#import <CkoJsonObject.h>
#import <CkoStringBuilder.h>
#import <NSString.h>

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

CkoRest *rest = [[CkoRest alloc] init];
BOOL success;

CkoAuthAws *authAws = [[CkoAuthAws alloc] init];
authAws.AccessKey = @"AWS_ACCESS_KEY";
authAws.SecretKey = @"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.)
authAws.Region = @"us-west-2";
authAws.ServiceName = @"cognito-idp";
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
[rest SetAuthAws: authAws];

// URL: https://cognito-idp.us-west-2.amazonaws.com/
BOOL bTls = YES;
int port = 443;
BOOL bAutoReconnect = YES;
// Use the same region as specified above.
success = [rest Connect: @"cognito-idp.us-west-2.amazonaws.com" port: [NSNumber numberWithInt: port] tls: bTls autoReconnect: bAutoReconnect];
if (success != YES) {
    NSLog(@"%@%d",@"ConnectFailReason: ",[rest.ConnectFailReason intValue]);
    NSLog(@"%@",rest.LastErrorText);
    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"
// }
// 

CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json UpdateString: @"UserPoolId" value: @"us-west-2_yt6WzO3SA"];

[rest AddHeader: @"Content-Type" value: @"application/x-amz-json-1.0"];
[rest AddHeader: @"X-Amz-Target" value: @"AWSCognitoIdentityProviderService.ListUsers"];
[rest AddHeader: @"Accept-Encoding" value: @"identity"];

CkoStringBuilder *sbRequestBody = [[CkoStringBuilder alloc] init];
[json EmitSb: sbRequestBody];
CkoStringBuilder *sbResponseBody = [[CkoStringBuilder alloc] init];
success = [rest FullRequestSb: @"POST" uriPath: @"/" requestBody: sbRequestBody responseBody: sbResponseBody];
if (success != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

int respStatusCode = [rest.ResponseStatusCode intValue];
NSLog(@"%@%d",@"response status code = ",respStatusCode);
if (respStatusCode != 200) {
    NSLog(@"%@%d",@"Response Status Code = ",respStatusCode);
    NSLog(@"%@",@"Response Header:");
    NSLog(@"%@",rest.ResponseHeader);
    NSLog(@"%@",@"Response Body:");
    NSLog(@"%@",[sbResponseBody GetAsString]);
    return;
}

CkoJsonObject *jsonResponse = [[CkoJsonObject alloc] init];
[jsonResponse LoadSb: sbResponseBody];

jsonResponse.EmitCompact = NO;
NSLog(@"%@",[jsonResponse Emit]);

// 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"
//     },
//     {
// 	. . .
//     }
//   ]
// }

BOOL Enabled;
NSString *UserCreateDate = 0;
NSString *UserLastModifiedDate = 0;
NSString *UserStatus = 0;
NSString *Username = 0;
int j;
int count_j;
NSString *Name = 0;
NSString *Value = 0;

int i = 0;
int count_i = [[jsonResponse SizeOfArray: @"Users"] intValue];
while (i < count_i) {
    jsonResponse.I = [NSNumber numberWithInt: i];
    Enabled = [jsonResponse BoolOf: @"Users[i].Enabled"];
    UserCreateDate = [jsonResponse StringOf: @"Users[i].UserCreateDate"];
    UserLastModifiedDate = [jsonResponse StringOf: @"Users[i].UserLastModifiedDate"];
    UserStatus = [jsonResponse StringOf: @"Users[i].UserStatus"];
    Username = [jsonResponse StringOf: @"Users[i].Username"];
    j = 0;
    count_j = [[jsonResponse SizeOfArray: @"Users[i].Attributes"] intValue];
    while (j < count_j) {
        jsonResponse.J = [NSNumber numberWithInt: j];
        Name = [jsonResponse StringOf: @"Users[i].Attributes[j].Name"];
        Value = [jsonResponse StringOf: @"Users[i].Attributes[j].Value"];
        j = j + 1;
    }

    i = i + 1;
}