How to use zephyr zapi api, I wanted to update status of the test ticket under cycles ?

[Shashank Gupta]

Hi Team ,
I am new in zephyr  squad integration, I want to use rest api , in order to update task status , I am using following document https://getzephyr.docs.apiary.io/#reference/executionresource/get-list-of-execution/get-list-of-execution

But in the document I am not what are the header authorization I must use , So far using username and Jira token as basic auth and it not working 

error : 404null for uri: url

Kindly help me in this .

Thanks in advance