Ci sono altri AWS SDK esempi disponibili nel repository AWS Doc SDK Examples GitHub .
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Esempi di codice per l'utilizzo di Amazon Cognito Identity Provider AWS SDKs
I seguenti esempi di codice mostrano come utilizzare Amazon Cognito Identity Provider con un kit di sviluppo AWS software ()SDK.
Le basi sono esempi di codice che mostrano come eseguire le operazioni essenziali all'interno di un servizio.
Le operazioni sono estratti di codice da programmi più grandi e devono essere eseguite nel contesto. Mentre le azioni mostrano come richiamare le singole funzioni di servizio, è possibile visualizzare le azioni nel loro contesto nei relativi scenari.
Gli scenari sono esempi di codice che mostrano come eseguire attività specifiche richiamando più funzioni all'interno di un servizio o combinandole con altre Servizi AWS.
Nozioni di base
Gli esempi di codice seguente mostrano come iniziare a utilizzare Amazon Cognito.
- C++
-
- SDKper C++
-
Codice per il CMakeLists file.txtCMake.
# 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})
Codice per il file origine 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
-
- SDKper 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() {
ctx := context.Background()
sdkConfig, err := config.LoadDefaultConfig(ctx)
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(ctx)
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
-
- SDKper 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
-
- SDKper 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;
};
- Python
-
- SDKper Python (Boto3)
-
import boto3
# Create a Cognito Identity Provider client
cognitoidp = boto3.client("cognito-idp")
# Initialize a paginator for the list_user_pools operation
paginator = cognitoidp.get_paginator("list_user_pools")
# Create a PageIterator from the paginator
page_iterator = paginator.paginate(MaxResults=10)
# Initialize variables for pagination
user_pools = []
# Handle pagination
for page in page_iterator:
user_pools.extend(page.get("UserPools", []))
# Print the list of user pools
print("User Pools for the account:")
if user_pools:
for pool in user_pools:
print(f"Name: {pool['Name']}, ID: {pool['Id']}")
else:
print("No user pools found.")
- Ruby
-
- SDKper Ruby
-
require 'aws-sdk-cognitoidentityprovider'
require 'logger'
# CognitoManager is a class responsible for managing AWS Cognito operations
# such as listing all user pools in the current AWS account.
class CognitoManager
def initialize(client)
@client = client
@logger = Logger.new($stdout)
end
# Lists and prints all user pools associated with the AWS account.
def list_user_pools
paginator = @client.list_user_pools(max_results: 10)
user_pools = []
paginator.each_page do |page|
user_pools.concat(page.user_pools)
end
if user_pools.empty?
@logger.info('No Cognito user pools found.')
else
user_pools.each do |user_pool|
@logger.info("User pool ID: #{user_pool.id}")
@logger.info("User pool name: #{user_pool.name}")
@logger.info("User pool status: #{user_pool.status}")
@logger.info('---')
end
end
end
end
if $PROGRAM_NAME == __FILE__
cognito_client = Aws::CognitoIdentityProvider::Client.new
manager = CognitoManager.new(cognito_client)
manager.list_user_pools
end