Calling Bussiness central API using power automate to import sales Orders

We have an Add in for apparel industry and using BC 24. They have an API that can import sales Header and Sales line data and it is working when sending in Json using postman. any one has ever worked to use these API calls via power automate to import the text file and convert that to json in one of the action in power automate an dthan send this data to BC in the next action?