我有这个查询:
getMyTransactions {
id
createdAt
}
我得到了这个错误:
"message": "Cannot return null for non-nullable field Transaction.createdAt.",
"path": [
"_entities",
0,
"createdAt"
],
"extensions": {
"code": "INTERNAL_SERVER_ERROR",
"serviceName": "XXX",
"query": "query($representations:[_Any!]!){_entities(representations:$representations){...on Transaction{createdAt}}}",
"variables": {
"representations": [
{
"__typename": "Transaction",
"id": "29bf75e5-b79e-4a7d-a021-84a8b5662aa8"
},
{
"__typename": "Transaction",
"id": "616f3f8a-3c81-4d2e-bce0-03d031a15062"
}
]
},
//etc
为什么variables.representations
缺少createdAt
值?当我直接对 DynamoDB 进行查询时,我可以看到createdAt
所有这两项的值。
我的模式是这样的:
extend type Transaction @key(fields: "id") {
id: ID! @external
}
type Query {
getMyTransactions: [Transaction!]!
}
另一个模式具有事务类型:
type Transaction @key(fields: "id") {
id: ID!
createdAt: String!
}