我尝试使用aws-amplify提交以下有效负载(嵌套的对象数组):
{
"data": [
{ "name": "alpha", "description": "lorem" },
{ "name": "bravo", "description": "ipsum" },
]
}
此解决方案(源代码为TypeScript):
import AWSAmplifyAPI, { graphqlOperation } from "@aws-amplify/api";
const rawGraphQLRequest: string = `
mutation ($data: [registerMultipleItemsInput]!) {
registerMultipleItems(data: [$data])
}`;
type Item = {
name: string;
description: string;
}
async function registerMultipleItems(items: Array<Item>): Promise<void> {
await AWSAmplifyAPI.graphql(graphqlOperation(rawGraphQLRequest, { data: items }));
}
导致不清楚的错误:
Validation error of type VariableTypeMismatch: Variable type '[registerMultipleItemsInput]!' doesn't match expected
type 'registerMultipleItemsInput' @ 'registerMultipleItems'";
是后端,方案定义为:
registerMultipleItems(data: [registerMultipleItemsInput]!): [String]!
@aws_cognito_user_pools
input registerMultipleItemsInput{
name: String!
description: String!
}
我尝试将registerMultipleItemsInput
的定义添加到rawGraphQLRequest
:
const rawGraphQLRequest: string = `
input registerMultipleItemsInput {
name: String!
description: String!
}
mutation ($data: [registerMultipleItemsInput]!) {
registerMultipleItems(data: [$data])
}`;
还有上述错误,并且发生了其他错误:
Validation error of type NonExecutableDefinition: The registerMultipleItemsInput definition is not executable.
{ "data": <Array>
}有效负载的正确语法是什么?
P。 S.我希望我不需要在registerMultipleItemsInput
中定义rawGraphQLRequest
,因为registerMultipleItemsInput
已经在后端定义了,而在前端再次定义是一种硬编码。
答案 0 :(得分:1)
我认为您的第一个解决方案是正确的,除了:
mutation ($data: [registerMultipleItemsInput]!) {
registerMultipleItems(data: [$data]) // <-------- incorrect
}`;
$data
已经包含一个registerMultipleItemsInput
数组,但是您将其包装在另一个不正确的数组中,它必须是:
mutation ($data: [registerMultipleItemsInput]!) {
registerMultipleItems(data: $data) // <-------- correct
}`;