How to send a web post to a public IP with port

Hello I am looking for a solution to send a web post to an IP with port, i dont have an url, but i got error, i tested from another webpage and worked, but with thunkable i can not get it done, this is my block

there is something i am not doing correctly? I am nooby here, please help

Hello @rijhalmelectronicsfz
Could you please share what you receive as an error from the Web API Post block?