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Yandex Cloud Functions
  • Getting started
    • Overview
    • Creating a function
      • Overview
      • Python
      • Node.js
      • PHP
      • Go
      • Bash
    • Creating a trigger
      • Overview
      • Timer
      • Trigger for Message Queue
      • Trigger for Object Storage
      • Trigger for Container Registry
      • Trigger for Cloud Logs
      • Trigger for Yandex IoT Core
  • Step-by-step instructions
    • All instructions
    • Using functions to get an IAM token for a service account
    • Managing rights to access functions
    • Managing functions
      • Creating a function
      • Managing function versions
      • Working in the code editor
      • Invoking a function
      • Updating a function
      • View monitoring charts
      • Viewing the execution log
      • Delete function
    • Managing triggers
      • Getting information about a trigger
      • Creating a timer
      • Creating a trigger for Message Queue
      • Creating a trigger for Object Storage
      • Creating a trigger for Container Registry
      • Creating a trigger for Cloud Logs
      • Creating a trigger for Yandex IoT Core
      • Updating a trigger
      • Deleting a trigger
  • Concepts
    • Overview
    • Function
    • Invoking a function
    • Runtime environment
      • Overview
      • Environment
      • Execution context
    • Builder
    • Trigger
      • Overview
      • Timer
      • Trigger for Message Queue
      • Trigger for Object Storage
      • Trigger for Container Registry
      • Trigger for Cloud Logs
      • Trigger for Yandex IoT Core
    • Dead Letter Queue
    • Log groups
    • Monitoring
    • Backups
    • Quotas and limits
  • Developing in Node.js
    • Overview
    • Managing dependencies
    • Request handler
    • Invocation context
    • Logging
    • Handling errors
    • Using the SDK
  • Developing in Python
    • Overview
    • Managing dependencies
    • Request handler
    • Invocation context
    • Logging
    • Handling errors
    • Using the SDK
  • Developing in Go
    • Overview
    • Managing dependencies
    • Request handler
    • Invocation context
    • Logging
    • Handling errors
    • Using the SDK
  • Developing in PHP
    • Overview
    • Managing dependencies
    • Request handler
    • Invocation context
    • Logging
    • Handling errors
  • Developing in Bash
    • Overview
    • Request handler
    • Logging
    • Handling errors
    • Using the SDK
  • Developing in Java
    • Overview
    • Programming model
      • Overview
      • Function interface
      • YcFunction interface
      • HttpServlet class
      • Spring Boot
    • Managing dependencies
    • Request handler
    • Invocation context
    • Logging
    • Handling errors
    • Using the SDK
  • Developing in R
    • Overview
    • Programming model
    • Managing dependencies
    • Request handler
    • Invocation context
    • Logging
    • Handling errors
  • Developing in C#
    • Overview
    • Programming model
      • Overview
      • Function interface
      • YcFunction interface
    • Managing dependencies
    • Request handler
    • Invocation context
    • Logging
    • Handling errors
    • Using the SDK
  • Use cases
    • Creating skills for Alice
  • Pricing policy
  • Access management
  • API Functions reference
    • Authentication in the API
    • gRPC
      • Overview
      • FunctionService
      • OperationService
    • REST
      • Overview
      • Function
        • Overview
        • create
        • createVersion
        • delete
        • get
        • getVersion
        • getVersionByTag
        • list
        • listAccessBindings
        • listOperations
        • listRuntimes
        • listTagHistory
        • listVersions
        • removeTag
        • setAccessBindings
        • setTag
        • update
        • updateAccessBindings
  • API Triggers reference
    • Authentication in the API
    • gRPC
      • Overview
      • TriggerService
      • OperationService
    • REST
      • Overview
      • Trigger
        • Overview
        • create
        • delete
        • get
        • list
        • listOperations
        • pause
        • resume
        • update
  • Questions and answers
  1. Developing in R
  2. Request handler

Request handler

    A request handler is an R function that is used to handle each function invocation. When creating a function version, you should specify the entry point. It consists of the file name and the name of the R function where requests are sent (see example for the handler in the function.R or function.handler file).

    Note

    At any given time, a single function instance processes only one request.

    The handler can accept and return various data. For more information about this and available ways to set the request handler, see the relevant section.

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