我的目标是能够在 GraphQL 查询中将对象作为参数传递。
目标:
{
accounts (filter:
{"fieldName": "id",
"fieldValues":["123"],
"filterType":"in"}){
id
}
}
错误:
"message": "filterType fields must be an object with field names as keys or a function which returns such an object."
我尝试了几种不同的方法,但这似乎是最接近潜在解决方案的方法。
架构:
const filterType = new GraphQLObjectType ({
name: 'filterType',
fields: {
fieldName: { type: GraphQLString },
fieldValues: { type: GraphQLString },
filterType: { type: GraphQLString },
}
})
const QueryType = new GraphQLObjectType({
name: 'Query',
fields: () => ({
accounts: {
type: new GraphQLList(accountType),
args: {
filter: { type: new GraphQLInputObjectType(filterType) },
},
resolve: (root, args, { loaders }) => loaders.account.load(args),
},
}),
});
最佳答案
架构:
const filterType = new GraphQLInputObjectType({
name: 'filterType',
fields: {
fieldName: { type: GraphQLString },
fieldValues: { type: GraphQLString },
filterType: { type: GraphQLString },
}
})
const QueryType = new GraphQLObjectType({
name: 'Query',
fields: () => ({
accounts: {
type: new GraphQLList(accountType),
args: {
filter: { type: filterType },
},
resolve: (root, args, { loaders }) => {
return loaders.account.load(args)},
},
}),
});
问题出在查询中,我在对象参数中将键和值都作为字符串。
正确查询:
{
accounts(filter: {fieldName: "id", fieldValues: "123", filterType: "in"}) {
id
}
}
关于node.js - GraphQL.js Node/ express : How to pass object as GraphQL query argument,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/42722888/