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Exemples de code pour le fournisseur d'identité Amazon Cognito utilisant des SDK AWS
Les exemples de code suivants montrent comment utiliser le fournisseur d'identité Amazon Cognito avec un kit de développement AWS logiciel (SDK).
Les actions sont des extraits de code de programmes plus larges et doivent être exécutées dans leur contexte. Alors que les actions vous indiquent comment appeler des fonctions de service individuelles, vous pouvez les voir en contexte dans leurs scénarios associés et dans des exemples interservices.
Les Scénarios sont des exemples de code qui vous montrent comment accomplir une tâche spécifique en appelant plusieurs fonctions au sein d’un même service.
Pour obtenir la liste complète des guides de développement du AWS SDK et des exemples de code, consultezUtilisation de ce service avec un AWS SDK. Cette rubrique comprend également des informations sur le démarrage et sur les versions précédentes de SDK.
Mise en route
Les exemples de code suivants montrent comment bien démarrer avec Amazon Cognito.
- C++
-
- SDK pour C++
-
Code pour le MakeLists fichier CMake C.txt.
# Set the minimum required version of CMake for this project.
cmake_minimum_required(VERSION 3.13)
# Set the AWS service components used by this project.
set(SERVICE_COMPONENTS cognito-idp)
# Set this project's name.
project("hello_cognito")
# Set the C++ standard to use to build this target.
# At least C++ 11 is required for the AWS SDK for C++.
set(CMAKE_CXX_STANDARD 11)
# Use the MSVC variable to determine if this is a Windows build.
set(WINDOWS_BUILD ${MSVC})
if (WINDOWS_BUILD) # Set the location where CMake can find the installed libraries for the AWS SDK.
string(REPLACE ";" "/aws-cpp-sdk-all;" SYSTEM_MODULE_PATH "${CMAKE_SYSTEM_PREFIX_PATH}/aws-cpp-sdk-all")
list(APPEND CMAKE_PREFIX_PATH ${SYSTEM_MODULE_PATH})
endif ()
# Find the AWS SDK for C++ package.
find_package(AWSSDK REQUIRED COMPONENTS ${SERVICE_COMPONENTS})
if (WINDOWS_BUILD AND AWSSDK_INSTALL_AS_SHARED_LIBS)
# Copy relevant AWS SDK for C++ libraries into the current binary directory for running and debugging.
# set(BIN_SUB_DIR "/Debug") # If you are building from the command line, you may need to uncomment this
# and set the proper subdirectory to the executables' location.
AWSSDK_CPY_DYN_LIBS(SERVICE_COMPONENTS "" ${CMAKE_CURRENT_BINARY_DIR}${BIN_SUB_DIR})
endif ()
add_executable(${PROJECT_NAME}
hello_cognito.cpp)
target_link_libraries(${PROJECT_NAME}
${AWSSDK_LINK_LIBRARIES})
Code pour le fichier source hello_cognito.cpp.
#include <aws/core/Aws.h>
#include <aws/cognito-idp/CognitoIdentityProviderClient.h>
#include <aws/cognito-idp/model/ListUserPoolsRequest.h>
#include <iostream>
/*
* A "Hello Cognito" starter application which initializes an Amazon Cognito client and lists the Amazon Cognito
* user pools.
*
* main function
*
* Usage: 'hello_cognito'
*
*/
int main(int argc, char **argv) {
Aws::SDKOptions options;
// Optionally change the log level for debugging.
// options.loggingOptions.logLevel = Utils::Logging::LogLevel::Debug;
Aws::InitAPI(options); // Should only be called once.
int result = 0;
{
Aws::Client::ClientConfiguration clientConfig;
// Optional: Set to the AWS Region (overrides config file).
// clientConfig.region = "us-east-1";
Aws::CognitoIdentityProvider::CognitoIdentityProviderClient cognitoClient(clientConfig);
Aws::String nextToken; // Used for pagination.
std::vector<Aws::String> userPools;
do {
Aws::CognitoIdentityProvider::Model::ListUserPoolsRequest listUserPoolsRequest;
if (!nextToken.empty()) {
listUserPoolsRequest.SetNextToken(nextToken);
}
Aws::CognitoIdentityProvider::Model::ListUserPoolsOutcome listUserPoolsOutcome =
cognitoClient.ListUserPools(listUserPoolsRequest);
if (listUserPoolsOutcome.IsSuccess()) {
for (auto &userPool: listUserPoolsOutcome.GetResult().GetUserPools()) {
userPools.push_back(userPool.GetName());
}
nextToken = listUserPoolsOutcome.GetResult().GetNextToken();
} else {
std::cerr << "ListUserPools error: " << listUserPoolsOutcome.GetError().GetMessage() << std::endl;
result = 1;
break;
}
} while (!nextToken.empty());
std::cout << userPools.size() << " user pools found." << std::endl;
for (auto &userPool: userPools) {
std::cout << " user pool: " << userPool << std::endl;
}
}
Aws::ShutdownAPI(options); // Should only be called once.
return result;
}
- Go
-
- Kit SDK for Go V2
-
package main
import (
"context"
"fmt"
"log"
"github.com/aws/aws-sdk-go-v2/aws"
"github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/service/cognitoidentityprovider"
"github.com/aws/aws-sdk-go-v2/service/cognitoidentityprovider/types"
)
// main uses the AWS SDK for Go V2 to create an Amazon Simple Notification Service
// (Amazon SNS) client and list the topics in your account.
// This example uses the default settings specified in your shared credentials
// and config files.
func main() {
sdkConfig, err := config.LoadDefaultConfig(context.TODO())
if err != nil {
fmt.Println("Couldn't load default configuration. Have you set up your AWS account?")
fmt.Println(err)
return
}
cognitoClient := cognitoidentityprovider.NewFromConfig(sdkConfig)
fmt.Println("Let's list the user pools for your account.")
var pools []types.UserPoolDescriptionType
paginator := cognitoidentityprovider.NewListUserPoolsPaginator(
cognitoClient, &cognitoidentityprovider.ListUserPoolsInput{MaxResults: aws.Int32(10)})
for paginator.HasMorePages() {
output, err := paginator.NextPage(context.TODO())
if err != nil {
log.Printf("Couldn't get user pools. Here's why: %v\n", err)
} else {
pools = append(pools, output.UserPools...)
}
}
if len(pools) == 0 {
fmt.Println("You don't have any user pools!")
} else {
for _, pool := range pools {
fmt.Printf("\t%v: %v\n", *pool.Name, *pool.Id)
}
}
}
- Java
-
- SDK pour Java 2.x
-
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.cognitoidentityprovider.CognitoIdentityProviderClient;
import software.amazon.awssdk.services.cognitoidentityprovider.model.CognitoIdentityProviderException;
import software.amazon.awssdk.services.cognitoidentityprovider.model.ListUserPoolsResponse;
import software.amazon.awssdk.services.cognitoidentityprovider.model.ListUserPoolsRequest;
/**
* Before running this Java V2 code example, set up your development
* environment, including your credentials.
*
* For more information, see the following documentation topic:
*
* https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
*/
public class ListUserPools {
public static void main(String[] args) {
CognitoIdentityProviderClient cognitoClient = CognitoIdentityProviderClient.builder()
.region(Region.US_EAST_1)
.build();
listAllUserPools(cognitoClient);
cognitoClient.close();
}
public static void listAllUserPools(CognitoIdentityProviderClient cognitoClient) {
try {
ListUserPoolsRequest request = ListUserPoolsRequest.builder()
.maxResults(10)
.build();
ListUserPoolsResponse response = cognitoClient.listUserPools(request);
response.userPools().forEach(userpool -> {
System.out.println("User pool " + userpool.name() + ", User ID " + userpool.id());
});
} catch (CognitoIdentityProviderException e) {
System.err.println(e.awsErrorDetails().errorMessage());
System.exit(1);
}
}
}
- JavaScript
-
- SDK pour JavaScript (v3)
-
import {
paginateListUserPools,
CognitoIdentityProviderClient,
} from "@aws-sdk/client-cognito-identity-provider";
const client = new CognitoIdentityProviderClient({});
export const helloCognito = async () => {
const paginator = paginateListUserPools({ client }, {});
const userPoolNames = [];
for await (const page of paginator) {
const names = page.UserPools.map((pool) => pool.Name);
userPoolNames.push(...names);
}
console.log("User pool names: ");
console.log(userPoolNames.join("\n"));
return userPoolNames;
};
