Mercury Documentation
  • Get Started with Mercury
    • Pricing
    • Endpoints
    • Authentication
  • The Definitive Guide to Understanding The Mercury's Stack Vision
  • Retroshades
    • Introduction to Retroshades
    • Get Started
      • Importing the Retroshades SDK
      • Writing and Emitting Retroshades
      • Deploying to Mercury Retroshades
      • Querying Retroshades
  • Zephyr: Full Customization
    • Introduction
    • General concepts
      • Zephyr Programs
      • Accessing the Ledger: Contract Entries
      • Accessing the Ledger Meta: Contract Events
      • Database Interactions
      • Create Custom Callable APIs: Serverless Functions
      • Catchups
      • Using Soroban inside Zephyr
    • Quickstart
    • Learn
      • Introduction to Mercury's Cloud and the Zephyr Stack
      • Get Started: Set Up and Manage the Project
        • Create the Project
        • Writing the Program
        • Local Testing
        • Deploy
        • Data catchups/backfill
        • Monitor Execution
        • Querying
      • Database Interactions
        • Zephyr.toml: Define the Tables Structure
        • Understanding Database Interactions
        • Database Operations
      • Accessing the Ledger
      • Accessing Ledger Transition: Soroban Events
      • Working with Contract Custom Types
      • Working with Soroban SDK Types
      • Web Requests, Automation and Alerts.
      • Zephyr.toml Extensions: Indexes And Dashboard
      • Reading From Indexes/External Tables
      • Custom APIs - Serverless Functions
        • General Concepts
        • Custom RPC-alike Endpoints
        • Querying APIs for Composable Data
      • Data Catchups/Backfill
      • Custom Dashboards
        • Creating the Dashboard
        • Plotting: Simple
        • Complex Plotting
    • Support
  • Mercury "Classic"
    • Subscriptions
      • API Definition
    • Queries
      • Contract Events
      • Contract Data Entry Updates
      • Stellar Operations, Balances, and Account Objects
  • TUTORIALS
    • Zephyr
      • Self-hosting Zephyr
      • No-RPC Dapp
      • Indexing a DeFi liquidity pool (Blend)
      • Building a Secure DeFi Real-Time Bot Through Smart Accounts
      • Monitoring Large Deposits with Zephyr and Sending Web Alerts
    • Mercury Classic
      • Index and query contract events
Powered by GitBook
On this page
  1. Zephyr: Full Customization
  2. Learn

Custom APIs - Serverless Functions

Learn about Mercury's API-callable functions

At this point, you've learned how to build indexing programs that are executed as the network closes its ledgers enabling real-time indexing solutions, but that's not the only feature made possible through the ZephyrVM. Mercury's cloud execution environment also enables you to create serverless functions inside your already existing indexing programs.

In this section, we will learn how to set up fully custom APIs with Zephyr. This will be done thanks to serverless functions that are defined on the program and called on request. We will start with a general introduction to serverless functions, followed by step-by-step explanations on how to implement the various use cases powered by them, which, as mentioned earlier, include:

  • Designing customizable dashboards.

  • Implementing querying APIs, which can be fully customized for composing stored and ledger data.

  • Creating custom RPC-alike endpoints, useful for simulations and on-demand "getLedger" APIs.

PreviousReading From Indexes/External TablesNextGeneral Concepts

Last updated 10 months ago