getTokenAllowance

Get the amount of ERC20 tokens which the spender is allowed to withdraw from the owner

Efficiently retrieve the allowance of ERC20 tokens that a spender is permitted to withdraw from an owner's wallet using the "getTokenAllowance" method. This method empowers developers to access detailed information about token allowances, helping them better understand and manage token-related transactions and authorizations.

How to use getTokenAllowance method ?

Below, you'll find an in-depth guide that provides a comprehensive explanation of how to utilize the getTokenAllowance Builder API method effectively using Blast.

Parameters

Below, you can find the query parameters accepted by the method.

Parameter	Type	Description
contractAddress *	string	The token contract address
ownerAddress *	string	The address of the token owner
spenderAddress *	string	The address of the token spender

Returns

Parameter	Type	Description
allowance	string	The allowance amount

Example Request and Result for getTokenAllowance

In this section, you can find an illustrative example of a request made to retrieve the allowance amount using the getTokenAllowance method. The example demonstrates how to fetch the ERC20 token allowance, providing insight into the allowed withdrawal amount between an owner and a spender. The response showcases the result structure, allowing developers to understand how to parse and utilize the returned data efficiently

The example in this section uses a non-existing project id.

Make sure you replace it with your Starknet endpoint when issuing the Builder API calls.

Don't have a project id? Here's a straightforward guide on how to obtain one!

Returns the amount of ERC20 tokens the spender is allowed to withdraw from the owner

GET https://starknet-mainnet.blastapi.io/<project_id>/builder/getTokenApprovals

Query Parameters

Name	Type	Description
contractAddress*	String	0x049d36570d4e46f48e99674bd3fcc84644ddd6b96f7c741b1562b82f9e004dc7
ownerAddress*	String	0x0373aa6e162d47f9f0c6304d4580a0fed41552283dbf9936f3606581a5a84f69
spenderAddress*	String	0x057146f6409deb4c9fa12866915dd952aa07c1eb2752e451d7f3b042086bdeb8

200: OK

{
"allowance":"1000000000"
}

curl -X GET https://starknet-mainnet.blastapi.io/<project_id>/builder/getTokenAllowance?contractAddress=0x049d36570d4e46f48e99674bd3fcc84644ddd6b96f7c741b1562b82f9e004dc7&ownerAddress=0x0373aa6e162d47f9f0c6304d4580a0fed41552283dbf9936f3606581a5a84f69&spenderAddress=0x057146f6409deb4c9fa12866915dd952aa07c1eb2752e451d7f3b042086bdeb8 -H 'Content-Type: application/json'