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[英]AWS Appsync implementation using GraphQL-client library in .Net
[英]Writing mutation graphql-client c#
我试图写突变,但它给了我错误。
as {"errors":[{"message":"Syntax Error: Expected $, found Name \"objects\"","locations":[{"line":2,"column":27}],"extensions":{"code":"GRAPHQL_PARSE_FAILED"}}]}
我写的代码是这样的。
[HttpGet("GraphDataCreate")]
public async Task<dynamic> ReturnGraphDataCreate()
{
using var graphQLClient = new GraphQLHttpClient("https://api.spacex.land/graphql/", new NewtonsoftJsonSerializer());
var trial = new GraphQLRequest
{
Query = @"
query insert_users(objects: { name: $name, rocket: $rocket }) {
returning {
id
name
rocket
timestamp
twitter
}
}",
OperationName = "insert_users",
Variables = new
{
name = "AdiAntNam",
rocket = "SPUTNIK5V"
}
};
var graphQLResponse = (object)(null);
try
{
graphQLResponse = await graphQLClient.SendQueryAsync<dynamic>(trial);
}
catch (Exception ex)
{
var err = ex;
string err1 = ex.Message;
string err2 = ex.InnerException.Message;
}
return Task.FromResult(graphQLResponse);
}
现在我在这部分缺少什么? 我采取的参考是从这里。
https://github.com/graphql-dotnet/graphql-client
该示例的问题是编写的数据类型很难遵循PersonAndFilms($id: ID)
现在ID是一种数据类型,所以我假设它只是一个声明的变量名,这就是我感到困惑的原因。
所以我把它写成查询insert_users(objects: { name: $name, rocket: $rocket })
这对于 GraphQL 来说是无法理解的,因为它需要数据类型,所以我重写了我的查询如下。
var trial = new GraphQLRequest
{
Query = @"
mutation xyz($nameU: String, $rocketU: String)
{
insert_users(objects: { name: $nameU , rocket: $rocketU })
{
returning
{
id
name
rocket
timestamp
twitter
}
}
}",
OperationName = "xyz",
Variables = new
{
nameU = "AdiAntNam2",
rocketU = "SPUTNIK5V"
}
};
现在突变xyz($nameU: String, $rocketU: String)
它读取正确的数据类型。 该示例在项目中的某些内容是正确的,但最终用户会混淆$id: ID
不太容易理解,因此最好将示例用作我的示例。
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