The connector will need to format the request into a JSON body. Make sure you configure your HTTP Connector similar to the following:
"HTTP_action": {
"inputs": {
"body": {
"$content-type": "multipart/form-data",
"$multipart": [
{
"body": "@trigger()",
"headers": {
"Content-Disposition": "form-data; name=file; filename=myExcelFile.xlsx"
}
}
]
},
"method": "POST",
"uri": "https://finance.contoso.com"
},
"runAfter": {},
"type": "Http"
}
where triggerbody()
is the file content. Check for any difference between this and your Postman request.