Is there any working reference for Magento 1 custom rest api?

Question

I have been searching source for Magento 1 custom API but could not find any which worked as expected. I know Magento 1 is now out of service but still...

I also tried the following link but did not get a positive result https://github.com/themizzi/Custom-Magento-Rest-Api2.git

Answer 1

等待大神答复