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Introduction

The http Plugin​

You can make HTTP requests to any external API from your smart contract, receive responses asynchronously, and process the data within the contract.

To achieve this, call the x/async precompile and use the http Plugin.

Follow tutorials in this section to learn how to do the following:

  • Implement HTTP requests and process asynchronous responses
  • Extract data from CBOR-encoded responses
  • Make multiple requests to an API

CBOR encoding​

Responses from HTTP requests are encoded in CBOR (Concise Binary Object Representation): a binary data format similar to JSON but more compact.

Extracting data from such response requires special handling in your contract, as shown in Extract data.

Get started​

To get started, set up your environment.