通过AppSync GraphQL调用lambda函数时出现以下错误:
{
"data": null,
"errors": [
{
"path": null,
"locations": [{ "line": 2, "column": 3, "sourceName": null }],
"message": "Validation error of type SubSelectionNotAllowed: Sub selection not allowed on leaf type String of field sendSignatureRequest @ 'sendSignatureRequest'"
}
]
}
我以前没见过这个错误。我应该在哪里修理它?
弄清楚了。 lambda函数返回一个字符串,我在查询中编码了一个对象。