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☕ ☁️ Serverless Patterns with TuskLang Java

Java Documentation

☁️ Serverless Patterns with TuskLang Java

"We don't bow to any king" - Serverless Edition

TuskLang Java enables sophisticated serverless architectures with built-in support for AWS Lambda, Azure Functions, Google Cloud Functions, and event-driven serverless patterns. Build scalable, cost-effective applications that automatically scale to zero.

🎯 Serverless Architecture Overview

AWS Lambda Configuration

import org.tusklang.java.TuskLang;
import org.tusklang.java.config.TuskConfig;
import com.amazonaws.services.lambda.runtime.Context;
import com.amazonaws.services.lambda.runtime.RequestHandler;
public class ServerlessApplication implements RequestHandler<Object, Object> {
    
    private static TuskConfig tuskConfig;
    
    static {
        TuskLang parser = new TuskLang();
        tuskConfig = parser.parseFile("serverless.tsk", TuskConfig.class);
    }
    
    @Override
    public Object handleRequest(Object input, Context context) {
        // Lambda handler implementation
        return processRequest(input, context);
    }
    
    private Object processRequest(Object input, Context context) {
        // Process request using TuskLang configuration
        return tuskConfig.getLambdaConfig().getHandler().process(input, context);
    }
}
// Serverless configuration
@TuskConfig
public class ServerlessConfig {
    private String applicationName;
    private String version;
    private LambdaConfig lambda;
    private ApiGatewayConfig apiGateway;
    private DynamoDBConfig dynamoDB;
    private S3Config s3;
    private SQSConfig sqs;
    private CloudWatchConfig cloudWatch;
    
    // Getters and setters
    public String getApplicationName() { return applicationName; }
    public void setApplicationName(String applicationName) { this.applicationName = applicationName; }
    
    public String getVersion() { return version; }
    public void setVersion(String version) { this.version = version; }
    
    public LambdaConfig getLambda() { return lambda; }
    public void setLambda(LambdaConfig lambda) { this.lambda = lambda; }
    
    public ApiGatewayConfig getApiGateway() { return apiGateway; }
    public void setApiGateway(ApiGatewayConfig apiGateway) { this.apiGateway = apiGateway; }
    
    public DynamoDBConfig getDynamoDB() { return dynamoDB; }
    public void setDynamoDB(DynamoDBConfig dynamoDB) { this.dynamoDB = dynamoDB; }
    
    public S3Config getS3() { return s3; }
    public void setS3(S3Config s3) { this.s3 = s3; }
    
    public SQSConfig getSqs() { return sqs; }
    public void setSqs(SQSConfig sqs) { this.sqs = sqs; }
    
    public CloudWatchConfig getCloudWatch() { return cloudWatch; }
    public void setCloudWatch(CloudWatchConfig cloudWatch) { this.cloudWatch = cloudWatch; }
}
@TuskConfig
public class LambdaConfig {
    private String functionName;
    private String runtime;
    private String handler;
    private String role;
    private int timeout;
    private int memorySize;
    private EnvironmentConfig environment;
    private VpcConfig vpc;
    private List<String> layers;
    
    // Getters and setters
    public String getFunctionName() { return functionName; }
    public void setFunctionName(String functionName) { this.functionName = functionName; }
    
    public String getRuntime() { return runtime; }
    public void setRuntime(String runtime) { this.runtime = runtime; }
    
    public String getHandler() { return handler; }
    public void setHandler(String handler) { this.handler = handler; }
    
    public String getRole() { return role; }
    public void setRole(String role) { this.role = role; }
    
    public int getTimeout() { return timeout; }
    public void setTimeout(int timeout) { this.timeout = timeout; }
    
    public int getMemorySize() { return memorySize; }
    public void setMemorySize(int memorySize) { this.memorySize = memorySize; }
    
    public EnvironmentConfig getEnvironment() { return environment; }
    public void setEnvironment(EnvironmentConfig environment) { this.environment = environment; }
    
    public VpcConfig getVpc() { return vpc; }
    public void setVpc(VpcConfig vpc) { this.vpc = vpc; }
    
    public List<String> getLayers() { return layers; }
    public void setLayers(List<String> layers) { this.layers = layers; }
}
@TuskConfig
public class EnvironmentConfig {
    private Map<String, String> variables;
    private boolean enableTracing;
    private String logLevel;
    
    // Getters and setters
    public Map<String, String> getVariables() { return variables; }
    public void setVariables(Map<String, String> variables) { this.variables = variables; }
    
    public boolean isEnableTracing() { return enableTracing; }
    public void setEnableTracing(boolean enableTracing) { this.enableTracing = enableTracing; }
    
    public String getLogLevel() { return logLevel; }
    public void setLogLevel(String logLevel) { this.logLevel = logLevel; }
}
@TuskConfig
public class VpcConfig {
    private List<String> subnetIds;
    private List<String> securityGroupIds;
    private boolean assignPublicIp;
    
    // Getters and setters
    public List<String> getSubnetIds() { return subnetIds; }
    public void setSubnetIds(List<String> subnetIds) { this.subnetIds = subnetIds; }
    
    public List<String> getSecurityGroupIds() { return securityGroupIds; }
    public void setSecurityGroupIds(List<String> securityGroupIds) { this.securityGroupIds = securityGroupIds; }
    
    public boolean isAssignPublicIp() { return assignPublicIp; }
    public void setAssignPublicIp(boolean assignPublicIp) { this.assignPublicIp = assignPublicIp; }
}
@TuskConfig
public class ApiGatewayConfig {
    private String name;
    private String description;
    private String stage;
    private CorsConfig cors;
    private AuthConfig auth;
    private ThrottlingConfig throttling;
    
    // Getters and setters
    public String getName() { return name; }
    public void setName(String name) { this.name = name; }
    
    public String getDescription() { return description; }
    public void setDescription(String description) { this.description = description; }
    
    public String getStage() { return stage; }
    public void setStage(String stage) { this.stage = stage; }
    
    public CorsConfig getCors() { return cors; }
    public void setCors(CorsConfig cors) { this.cors = cors; }
    
    public AuthConfig getAuth() { return auth; }
    public void setAuth(AuthConfig auth) { this.auth = auth; }
    
    public ThrottlingConfig getThrottling() { return throttling; }
    public void setThrottling(ThrottlingConfig throttling) { this.throttling = throttling; }
}
@TuskConfig
public class CorsConfig {
    private boolean enabled;
    private List<String> allowedOrigins;
    private List<String> allowedMethods;
    private List<String> allowedHeaders;
    private boolean allowCredentials;
    
    // Getters and setters
    public boolean isEnabled() { return enabled; }
    public void setEnabled(boolean enabled) { this.enabled = enabled; }
    
    public List<String> getAllowedOrigins() { return allowedOrigins; }
    public void setAllowedOrigins(List<String> allowedOrigins) { this.allowedOrigins = allowedOrigins; }
    
    public List<String> getAllowedMethods() { return allowedMethods; }
    public void setAllowedMethods(List<String> allowedMethods) { this.allowedMethods = allowedMethods; }
    
    public List<String> getAllowedHeaders() { return allowedHeaders; }
    public void setAllowedHeaders(List<String> allowedHeaders) { this.allowedHeaders = allowedHeaders; }
    
    public boolean isAllowCredentials() { return allowCredentials; }
    public void setAllowCredentials(boolean allowCredentials) { this.allowCredentials = allowCredentials; }
}
@TuskConfig
public class AuthConfig {
    private boolean enabled;
    private String type;
    private String authorizer;
    private List<String> scopes;
    
    // Getters and setters
    public boolean isEnabled() { return enabled; }
    public void setEnabled(boolean enabled) { this.enabled = enabled; }
    
    public String getType() { return type; }
    public void setType(String type) { this.type = type; }
    
    public String getAuthorizer() { return authorizer; }
    public void setAuthorizer(String authorizer) { this.authorizer = authorizer; }
    
    public List<String> getScopes() { return scopes; }
    public void setScopes(List<String> scopes) { this.scopes = scopes; }
}
@TuskConfig
public class ThrottlingConfig {
    private int rateLimit;
    private int burstLimit;
    private boolean enabled;
    
    // Getters and setters
    public int getRateLimit() { return rateLimit; }
    public void setRateLimit(int rateLimit) { this.rateLimit = rateLimit; }
    
    public int getBurstLimit() { return burstLimit; }
    public void setBurstLimit(int burstLimit) { this.burstLimit = burstLimit; }
    
    public boolean isEnabled() { return enabled; }
    public void setEnabled(boolean enabled) { this.enabled = enabled; }
}
@TuskConfig
public class DynamoDBConfig {
    private String tableName;
    private String region;
    private String endpoint;
    private BillingConfig billing;
    private IndexConfig indexes;
    
    // Getters and setters
    public String getTableName() { return tableName; }
    public void setTableName(String tableName) { this.tableName = tableName; }
    
    public String getRegion() { return region; }
    public void setRegion(String region) { this.region = region; }
    
    public String getEndpoint() { return endpoint; }
    public void setEndpoint(String endpoint) { this.endpoint = endpoint; }
    
    public BillingConfig getBilling() { return billing; }
    public void setBilling(BillingConfig billing) { this.billing = billing; }
    
    public IndexConfig getIndexes() { return indexes; }
    public void setIndexes(IndexConfig indexes) { this.indexes = indexes; }
}
@TuskConfig
public class BillingConfig {
    private String mode;
    private int readCapacity;
    private int writeCapacity;
    private boolean autoScaling;
    
    // Getters and setters
    public String getMode() { return mode; }
    public void setMode(String mode) { this.mode = mode; }
    
    public int getReadCapacity() { return readCapacity; }
    public void setReadCapacity(int readCapacity) { this.readCapacity = readCapacity; }
    
    public int getWriteCapacity() { return writeCapacity; }
    public void setWriteCapacity(int writeCapacity) { this.writeCapacity = writeCapacity; }
    
    public boolean isAutoScaling() { return autoScaling; }
    public void setAutoScaling(boolean autoScaling) { this.autoScaling = autoScaling; }
}
@TuskConfig
public class IndexConfig {
    private List<String> globalSecondaryIndexes;
    private List<String> localSecondaryIndexes;
    private boolean autoCreate;
    
    // Getters and setters
    public List<String> getGlobalSecondaryIndexes() { return globalSecondaryIndexes; }
    public void setGlobalSecondaryIndexes(List<String> globalSecondaryIndexes) { this.globalSecondaryIndexes = globalSecondaryIndexes; }
    
    public List<String> getLocalSecondaryIndexes() { return localSecondaryIndexes; }
    public void setLocalSecondaryIndexes(List<String> localSecondaryIndexes) { this.localSecondaryIndexes = localSecondaryIndexes; }
    
    public boolean isAutoCreate() { return autoCreate; }
    public void setAutoCreate(boolean autoCreate) { this.autoCreate = autoCreate; }
}
@TuskConfig
public class S3Config {
    private String bucketName;
    private String region;
    private String endpoint;
    private EncryptionConfig encryption;
    private LifecycleConfig lifecycle;
    
    // Getters and setters
    public String getBucketName() { return bucketName; }
    public void setBucketName(String bucketName) { this.bucketName = bucketName; }
    
    public String getRegion() { return region; }
    public void setRegion(String region) { this.region = region; }
    
    public String getEndpoint() { return endpoint; }
    public void setEndpoint(String endpoint) { this.endpoint = endpoint; }
    
    public EncryptionConfig getEncryption() { return encryption; }
    public void setEncryption(EncryptionConfig encryption) { this.encryption = encryption; }
    
    public LifecycleConfig getLifecycle() { return lifecycle; }
    public void setLifecycle(LifecycleConfig lifecycle) { this.lifecycle = lifecycle; }
}
@TuskConfig
public class EncryptionConfig {
    private boolean enabled;
    private String algorithm;
    private String keyId;
    
    // Getters and setters
    public boolean isEnabled() { return enabled; }
    public void setEnabled(boolean enabled) { this.enabled = enabled; }
    
    public String getAlgorithm() { return algorithm; }
    public void setAlgorithm(String algorithm) { this.algorithm = algorithm; }
    
    public String getKeyId() { return keyId; }
    public void setKeyId(String keyId) { this.keyId = keyId; }
}
@TuskConfig
public class LifecycleConfig {
    private boolean enabled;
    private int transitionDays;
    private int expirationDays;
    private String storageClass;
    
    // Getters and setters
    public boolean isEnabled() { return enabled; }
    public void setEnabled(boolean enabled) { this.enabled = enabled; }
    
    public int getTransitionDays() { return transitionDays; }
    public void setTransitionDays(int transitionDays) { this.transitionDays = transitionDays; }
    
    public int getExpirationDays() { return expirationDays; }
    public void setExpirationDays(int expirationDays) { this.expirationDays = expirationDays; }
    
    public String getStorageClass() { return storageClass; }
    public void setStorageClass(String storageClass) { this.storageClass = storageClass; }
}
@TuskConfig
public class SQSConfig {
    private String queueName;
    private String region;
    private String endpoint;
    private VisibilityConfig visibility;
    private DeadLetterConfig deadLetter;
    
    // Getters and setters
    public String getQueueName() { return queueName; }
    public void setQueueName(String queueName) { this.queueName = queueName; }
    
    public String getRegion() { return region; }
    public void setRegion(String region) { this.region = region; }
    
    public String getEndpoint() { return endpoint; }
    public void setEndpoint(String endpoint) { this.endpoint = endpoint; }
    
    public VisibilityConfig getVisibility() { return visibility; }
    public void setVisibility(VisibilityConfig visibility) { this.visibility = visibility; }
    
    public DeadLetterConfig getDeadLetter() { return deadLetter; }
    public void setDeadLetter(DeadLetterConfig deadLetter) { this.deadLetter = deadLetter; }
}
@TuskConfig
public class VisibilityConfig {
    private int timeout;
    private int longPolling;
    private int maxReceiveCount;
    
    // Getters and setters
    public int getTimeout() { return timeout; }
    public void setTimeout(int timeout) { this.timeout = timeout; }
    
    public int getLongPolling() { return longPolling; }
    public void setLongPolling(int longPolling) { this.longPolling = longPolling; }
    
    public int getMaxReceiveCount() { return maxReceiveCount; }
    public void setMaxReceiveCount(int maxReceiveCount) { this.maxReceiveCount = maxReceiveCount; }
}
@TuskConfig
public class DeadLetterConfig {
    private boolean enabled;
    private String queueArn;
    private int maxReceiveCount;
    
    // Getters and setters
    public boolean isEnabled() { return enabled; }
    public void setEnabled(boolean enabled) { this.enabled = enabled; }
    
    public String getQueueArn() { return queueArn; }
    public void setQueueArn(String queueArn) { this.queueArn = queueArn; }
    
    public int getMaxReceiveCount() { return maxReceiveCount; }
    public void setMaxReceiveCount(int maxReceiveCount) { this.maxReceiveCount = maxReceiveCount; }
}
@TuskConfig
public class CloudWatchConfig {
    private boolean enabled;
    private String logGroup;
    private String logStream;
    private MetricsConfig metrics;
    
    // Getters and setters
    public boolean isEnabled() { return enabled; }
    public void setEnabled(boolean enabled) { this.enabled = enabled; }
    
    public String getLogGroup() { return logGroup; }
    public void setLogGroup(String logGroup) { this.logGroup = logGroup; }
    
    public String getLogStream() { return logStream; }
    public void setLogStream(String logStream) { this.logStream = logStream; }
    
    public MetricsConfig getMetrics() { return metrics; }
    public void setMetrics(MetricsConfig metrics) { this.metrics = metrics; }
}
@TuskConfig
public class MetricsConfig {
    private boolean enabled;
    private String namespace;
    private List<String> dimensions;
    private int period;
    
    // Getters and setters
    public boolean isEnabled() { return enabled; }
    public void setEnabled(boolean enabled) { this.enabled = enabled; }
    
    public String getNamespace() { return namespace; }
    public void setNamespace(String namespace) { this.namespace = namespace; }
    
    public List<String> getDimensions() { return dimensions; }
    public void setDimensions(List<String> dimensions) { this.dimensions = dimensions; }
    
    public int getPeriod() { return period; }
    public void setPeriod(int period) { this.period = period; }
}

🏗️ Serverless TuskLang Configuration

serverless.tsk

Serverless Configuration

[application]
name: "user-service"
version: "2.1.0"
environment: @env("ENVIRONMENT", "production")
[lambda]
function_name: "user-service-function"
runtime: "java11"
handler: "com.example.ServerlessApplication::handleRequest"
role: @env("LAMBDA_ROLE_ARN")
timeout: 30
memory_size: 512
[environment]
variables {
    "ENVIRONMENT": @env("ENVIRONMENT", "production")
    "LOG_LEVEL": @env("LOG_LEVEL", "INFO")
    "DB_CONNECTION": @env.secure("DB_CONNECTION_STRING")
    "API_KEY": @env.secure("API_KEY")
}
enable_tracing: true
log_level: "INFO"
[vpc]
subnet_ids: [
    @env("SUBNET_ID_1"),
    @env("SUBNET_ID_2")
]
security_group_ids: [
    @env("SECURITY_GROUP_ID")
]
assign_public_ip: false
[layers]
layers: [
    "arn:aws:lambda:us-east-1:123456789012:layer:tusklang-java:1",
    "arn:aws:lambda:us-east-1:123456789012:layer:aws-sdk:1"
]
[api_gateway]
name: "user-service-api"
description: "User Service API Gateway"
stage: @env("API_STAGE", "prod")
[cors]
enabled: true
allowed_origins: [
    "https://app.example.com",
    "https://admin.example.com"
]
allowed_methods: ["GET", "POST", "PUT", "DELETE", "OPTIONS"]
allowed_headers: ["Content-Type", "Authorization", "X-Request-ID"]
allow_credentials: true
[auth]
enabled: true
type: "cognito"
authorizer: @env("COGNITO_AUTHORIZER")
scopes: [
    "read:users",
    "write:users"
]
[throttling]
rate_limit: 1000
burst_limit: 100
enabled: true
[dynamodb]
table_name: "user-service-table"
region: @env("AWS_REGION", "us-east-1")
endpoint: @env("DYNAMODB_ENDPOINT")
[billing]
mode: "on_demand"
read_capacity: 5
write_capacity: 5
auto_scaling: true
[indexes]
global_secondary_indexes: [
    "email-index",
    "status-index"
]
local_secondary_indexes: [
    "created-date-index"
]
auto_create: true
[s3]
bucket_name: @env("S3_BUCKET_NAME")
region: @env("AWS_REGION", "us-east-1")
endpoint: @env("S3_ENDPOINT")
[encryption]
enabled: true
algorithm: "AES256"
key_id: @env("KMS_KEY_ID")
[lifecycle]
enabled: true
transition_days: 30
expiration_days: 365
storage_class: "STANDARD_IA"
[sqs]
queue_name: "user-service-queue"
region: @env("AWS_REGION", "us-east-1")
endpoint: @env("SQS_ENDPOINT")
[visibility]
timeout: 30
long_polling: 20
max_receive_count: 3
[dead_letter]
enabled: true
queue_arn: @env("DLQ_ARN")
max_receive_count: 3
[cloud_watch]
enabled: true
log_group: "/aws/lambda/user-service-function"
log_stream: @env("LOG_STREAM")
[metrics]
enabled: true
namespace: "UserService"
dimensions: [
    "FunctionName",
    "Environment"
]
period: 60
Dynamic serverless configuration

[monitoring]
invocation_count: @metrics("lambda_invocations_total", 0)
error_count: @metrics("lambda_errors_total", 0)
duration: @metrics("lambda_duration_milliseconds", 0)
memory_usage: @metrics("lambda_memory_used_bytes", 0)
concurrent_executions: @metrics("lambda_concurrent_executions", 0)
throttles: @metrics("lambda_throttles_total", 0)

🔄 Azure Functions Configuration

Azure Functions Setup

import org.tusklang.java.TuskLang;
import org.tusklang.java.config.TuskConfig;
import com.microsoft.azure.functions.annotation.*;
public class AzureFunctionApplication {
    
    private static TuskConfig tuskConfig;
    
    static {
        TuskLang parser = new TuskLang();
        tuskConfig = parser.parseFile("azure-functions.tsk", TuskConfig.class);
    }
    
    @FunctionName("userService")
    public HttpResponseMessage run(
            @HttpTrigger(name = "req", methods = {HttpMethod.GET, HttpMethod.POST}, authLevel = AuthorizationLevel.FUNCTION) HttpRequestMessage<Optional<String>> request,
            final ExecutionContext context) {
        
        // Process request using TuskLang configuration
        return tuskConfig.getAzureFunctionConfig().getHandler().process(request, context);
    }
}
@TuskConfig
public class AzureFunctionConfig {
    private String functionName;
    private String runtime;
    private String handler;
    private int timeout;
    private int memorySize;
    private EnvironmentConfig environment;
    private StorageConfig storage;
    private ServiceBusConfig serviceBus;
    
    // Getters and setters
    public String getFunctionName() { return functionName; }
    public void setFunctionName(String functionName) { this.functionName = functionName; }
    
    public String getRuntime() { return runtime; }
    public void setRuntime(String runtime) { this.runtime = runtime; }
    
    public String getHandler() { return handler; }
    public void setHandler(String handler) { this.handler = handler; }
    
    public int getTimeout() { return timeout; }
    public void setTimeout(int timeout) { this.timeout = timeout; }
    
    public int getMemorySize() { return memorySize; }
    public void setMemorySize(int memorySize) { this.memorySize = memorySize; }
    
    public EnvironmentConfig getEnvironment() { return environment; }
    public void setEnvironment(EnvironmentConfig environment) { this.environment = environment; }
    
    public StorageConfig getStorage() { return storage; }
    public void setStorage(StorageConfig storage) { this.storage = storage; }
    
    public ServiceBusConfig getServiceBus() { return serviceBus; }
    public void setServiceBus(ServiceBusConfig serviceBus) { this.serviceBus = serviceBus; }
}
@TuskConfig
public class StorageConfig {
    private String accountName;
    private String accountKey;
    private String containerName;
    private String connectionString;
    
    // Getters and setters
    public String getAccountName() { return accountName; }
    public void setAccountName(String accountName) { this.accountName = accountName; }
    
    public String getAccountKey() { return accountKey; }
    public void setAccountKey(String accountKey) { this.accountKey = accountKey; }
    
    public String getContainerName() { return containerName; }
    public void setContainerName(String containerName) { this.containerName = containerName; }
    
    public String getConnectionString() { return connectionString; }
    public void setConnectionString(String connectionString) { this.connectionString = connectionString; }
}
@TuskConfig
public class ServiceBusConfig {
    private String namespace;
    private String queueName;
    private String topicName;
    private String subscriptionName;
    private String connectionString;
    
    // Getters and setters
    public String getNamespace() { return namespace; }
    public void setNamespace(String namespace) { this.namespace = namespace; }
    
    public String getQueueName() { return queueName; }
    public void setQueueName(String queueName) { this.queueName = queueName; }
    
    public String getTopicName() { return topicName; }
    public void setTopicName(String topicName) { this.topicName = topicName; }
    
    public String getSubscriptionName() { return subscriptionName; }
    public void setSubscriptionName(String subscriptionName) { this.subscriptionName = subscriptionName; }
    
    public String getConnectionString() { return connectionString; }
    public void setConnectionString(String connectionString) { this.connectionString = connectionString; }
}

azure-functions.tsk

[azure_function]
function_name: "user-service-function"
runtime: "java"
handler: "com.example.AzureFunctionApplication::run"
timeout: 30
memory_size: 512
[environment]
variables {
    "ENVIRONMENT": @env("ENVIRONMENT", "production")
    "LOG_LEVEL": @env("LOG_LEVEL", "INFO")
    "DB_CONNECTION": @env.secure("DB_CONNECTION_STRING")
    "API_KEY": @env.secure("API_KEY")
}
[storage]
account_name: @env("STORAGE_ACCOUNT_NAME")
account_key: @env.secure("STORAGE_ACCOUNT_KEY")
container_name: "user-service"
connection_string: @env.secure("STORAGE_CONNECTION_STRING")
[service_bus]
namespace: @env("SERVICE_BUS_NAMESPACE")
queue_name: "user-service-queue"
topic_name: "user-events"
subscription_name: "user-service-subscription"
connection_string: @env.secure("SERVICE_BUS_CONNECTION_STRING")
Azure Functions monitoring

[monitoring]
execution_count: @metrics("azure_function_executions_total", 0)
execution_time: @metrics("azure_function_execution_time_ms", 0)
error_count: @metrics("azure_function_errors_total", 0)

🔄 Google Cloud Functions Configuration

Google Cloud Functions Setup

import org.tusklang.java.TuskLang;
import org.tusklang.java.config.TuskConfig;
import com.google.cloud.functions.HttpFunction;
import com.google.cloud.functions.HttpRequest;
import com.google.cloud.functions.HttpResponse;
public class GoogleCloudFunctionApplication implements HttpFunction {
    
    private static TuskConfig tuskConfig;
    
    static {
        TuskLang parser = new TuskLang();
        tuskConfig = parser.parseFile("google-cloud-functions.tsk", TuskConfig.class);
    }
    
    @Override
    public void service(HttpRequest request, HttpResponse response) throws Exception {
        // Process request using TuskLang configuration
        tuskConfig.getGoogleCloudFunctionConfig().getHandler().process(request, response);
    }
}
@TuskConfig
public class GoogleCloudFunctionConfig {
    private String functionName;
    private String runtime;
    private String entryPoint;
    private int timeout;
    private int memorySize;
    private EnvironmentConfig environment;
    private FirestoreConfig firestore;
    private PubSubConfig pubSub;
    
    // Getters and setters
    public String getFunctionName() { return functionName; }
    public void setFunctionName(String functionName) { this.functionName = functionName; }
    
    public String getRuntime() { return runtime; }
    public void setRuntime(String runtime) { this.runtime = runtime; }
    
    public String getEntryPoint() { return entryPoint; }
    public void setEntryPoint(String entryPoint) { this.entryPoint = entryPoint; }
    
    public int getTimeout() { return timeout; }
    public void setTimeout(int timeout) { this.timeout = timeout; }
    
    public int getMemorySize() { return memorySize; }
    public void setMemorySize(int memorySize) { this.memorySize = memorySize; }
    
    public EnvironmentConfig getEnvironment() { return environment; }
    public void setEnvironment(EnvironmentConfig environment) { this.environment = environment; }
    
    public FirestoreConfig getFirestore() { return firestore; }
    public void setFirestore(FirestoreConfig firestore) { this.firestore = firestore; }
    
    public PubSubConfig getPubSub() { return pubSub; }
    public void setPubSub(PubSubConfig pubSub) { this.pubSub = pubSub; }
}
@TuskConfig
public class FirestoreConfig {
    private String projectId;
    private String databaseId;
    private String collectionName;
    private String credentialsPath;
    
    // Getters and setters
    public String getProjectId() { return projectId; }
    public void setProjectId(String projectId) { this.projectId = projectId; }
    
    public String getDatabaseId() { return databaseId; }
    public void setDatabaseId(String databaseId) { this.databaseId = databaseId; }
    
    public String getCollectionName() { return collectionName; }
    public void setCollectionName(String collectionName) { this.collectionName = collectionName; }
    
    public String getCredentialsPath() { return credentialsPath; }
    public void setCredentialsPath(String credentialsPath) { this.credentialsPath = credentialsPath; }
}
@TuskConfig
public class PubSubConfig {
    private String projectId;
    private String topicName;
    private String subscriptionName;
    private String credentialsPath;
    
    // Getters and setters
    public String getProjectId() { return projectId; }
    public void setProjectId(String projectId) { this.projectId = projectId; }
    
    public String getTopicName() { return topicName; }
    public void setTopicName(String topicName) { this.topicName = topicName; }
    
    public String getSubscriptionName() { return subscriptionName; }
    public void setSubscriptionName(String subscriptionName) { this.subscriptionName = subscriptionName; }
    
    public String getCredentialsPath() { return credentialsPath; }
    public void setCredentialsPath(String credentialsPath) { this.credentialsPath = credentialsPath; }
}

google-cloud-functions.tsk

[google_cloud_function]
function_name: "user-service-function"
runtime: "java11"
entry_point: "com.example.GoogleCloudFunctionApplication::service"
timeout: 30
memory_size: 512
[environment]
variables {
    "ENVIRONMENT": @env("ENVIRONMENT", "production")
    "LOG_LEVEL": @env("LOG_LEVEL", "INFO")
    "DB_CONNECTION": @env.secure("DB_CONNECTION_STRING")
    "API_KEY": @env.secure("API_KEY")
}
[firestore]
project_id: @env("GCP_PROJECT_ID")
database_id: "user-service-db"
collection_name: "users"
credentials_path: @env("GOOGLE_APPLICATION_CREDENTIALS")
[pubsub]
project_id: @env("GCP_PROJECT_ID")
topic_name: "user-events"
subscription_name: "user-service-subscription"
credentials_path: @env("GOOGLE_APPLICATION_CREDENTIALS")
Google Cloud Functions monitoring

[monitoring]
execution_count: @metrics("cloud_function_executions_total", 0)
execution_time: @metrics("cloud_function_execution_time_ms", 0)
error_count: @metrics("cloud_function_errors_total", 0)

🎯 Best Practices

1. Function Design

- Keep functions small and focused - Use appropriate memory allocation - Implement proper error handling - Optimize cold start times

2. Event-Driven Architecture

- Use appropriate triggers - Handle event ordering - Implement idempotency - Monitor event processing

3. Data Management

- Use managed databases - Implement proper caching - Handle data consistency - Monitor storage usage

4. Security

- Use IAM roles properly - Implement proper authentication - Encrypt sensitive data - Monitor access patterns

5. Monitoring

- Set up comprehensive logging - Monitor function metrics - Implement alerting - Track costs

🔧 Troubleshooting

Common Issues

1. Cold Start Problems - Optimize function size - Use provisioned concurrency - Implement warm-up strategies - Monitor cold start times

2. Memory Issues - Monitor memory usage - Optimize data structures - Use streaming for large data - Implement proper cleanup

3. Timeout Problems - Optimize function logic - Use async processing - Implement proper timeouts - Monitor execution times

4. Cost Optimization - Monitor function invocations - Optimize memory allocation - Use appropriate triggers - Implement caching

Debug Commands

AWS Lambda

aws lambda invoke --function-name user-service-function response.json
Azure Functions

func azure functionapp logstream user-service-function
Google Cloud Functions

gcloud functions logs read user-service-function

🚀 Next Steps

1. Deploy serverless functions to your preferred platform 2. Set up event triggers for automatic scaling 3. Configure monitoring and alerting 4. Implement cost optimization strategies 5. Test and optimize performance

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