Please use this API to request the expression analysis from GEPIA:
http://gepia.cancer-pku.cn/detail.php?gene=$genename&tag=$tagname
The API needs two parameters:
genenametagnameExamples:
ERBB2&tag=similarERBB2&tag=expdiyERBB2&tag=boxplotERBB2&tag=stageplotERBB2&tag=survivalERBB2&tag=correlation