Could someone please let me know how to create the hash authentication using Talend components to fetch data from API. Below is the steps to follow.. I am able to decode the key with Base 64 using t Java component.. but stuck with step 2 mentioned below.
Decode the API key’s secret from Base64 to raw bytes. - I am able to do this using tJava component.
Create the hash using HMAC SHA-256 over the canonical request with the decoded API key secret.
Encode the hash with Base64