Getting Started
Perform Query
How to perform a query on a REST endpoint to retrieve onchain data
In this guide, we will walk you through the steps to perform a query on a REST endpoint to retrieve onchain data.
Prerequisites
Before you begin, ensure you have the following:- An API key
- A REST client (e.g., Postman, curl)
Steps to Perform a Query
- Identify the endpoint URL: The base URL for the API is
https://api.data.ormilabs.com/. - Add the endpoint path: Append the specific endpoint path to the base URL, e.g.,
/v2/{chain_name}/blocks/{block_number}. - Include query parameters: Add any necessary query parameters to the URL, e.g.,
?param1=value1¶m2=value2. - Set up headers: Include the required headers, such as
Authorizationwith your API key. - Make the request: Use your REST client to send a GET request to the constructed URL.
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Example - Performing a Query to Fetch ERC20 Transfers
Here is an example of a query to retrieve the token balance of a wallet address on the Ethereum mainnet:- Identify the endpoint URL by navigating to the API Reference.
- Copy and paste the required endpoint path and query parameters into the editor, then click “Send” to make the request.
- You may use any third-party tool such as curl or Postman to directly query the endpoint.
- The API Reference page also provides handy code snippets for various programming languages to help you get started.