28 lines
1.2 KiB
Markdown
28 lines
1.2 KiB
Markdown
# Service Clients
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You can use the default constructor, or you can use the system interfaces to construct a service client.
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As an example, the following code creates an Amazon DynamoDB client using a specialized client configuration, default credentials provider chain, and default HTTP client factory:
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```cpp
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auto limiter = Aws::MakeShared<Aws::Utils::RateLimits::DefaultRateLimiter<>>(ALLOCATION_TAG, 200000);
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// Create a client
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ClientConfiguration config;
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config.scheme = Scheme::HTTPS;
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config.connectTimeoutMs = 30000;
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config.requestTimeoutMs = 30000;
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config.readRateLimiter = m_limiter;
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config.writeRateLimiter = m_limiter;
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auto client = Aws::MakeShared<DynamoDBClient>(ALLOCATION_TAG, config);
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```
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You can also do the following to manually pass credentials:
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`auto client = Aws::MakeShared<DynamoDBClient>(ALLOCATION_TAG, AWSCredentials("access_key_id", "secret_key"), config);`
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Or you can do the following to use a custom credentials provider:
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`auto client = Aws::MakeShared<DynamoDBClient>(ALLOCATION_TAG, Aws::MakeShared<CognitoCachingAnonymousCredentialsProvider>(ALLOCATION_TAG, "identityPoolId", "accountId"), config);`
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Now you can use your Amazon DynamoDB client.
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