public async Task String_Variable_Is_Converted_To_String_Literal()
{
// arrange
var serviceCollection = new ServiceCollection();
serviceCollection.AddSingleton(CreateRemoteSchemas());
serviceCollection.AddStitchedSchema(builder => builder
.AddSchemaFromHttp("contract")
.AddSchemaFromHttp("customer"));
IServiceProvider services = serviceCollection.BuildServiceProvider();
IStitchingContext stitchingContext = services.GetRequiredService <IStitchingContext>();
IRemoteQueryClient customerQueryClient = stitchingContext.GetRemoteQueryClient("customer");
IReadOnlyQueryRequest request = QueryRequestBuilder.New()
.SetQuery("query ($id: ID!) { customer(id: $id) { name } }")
.SetVariableValue("id", "Q3VzdG9tZXIKZDE=")
.Create();
Task <IExecutionResult> executeTask = customerQueryClient.ExecuteAsync(request);
await customerQueryClient.DispatchAsync(CancellationToken.None);
IExecutionResult result = await executeTask;
result.MatchSnapshot();
}
public async Task Int_Variable_Is_Converted_To_Int_Literal()
{
// arrange
var serviceCollection = new ServiceCollection();
serviceCollection.AddSingleton(CreateFooServer());
serviceCollection.AddStitchedSchema(builder => builder
.AddSchemaFromString("foo", "type Query { foo(a: Int!) : Int! }"));
IServiceProvider services = serviceCollection.BuildServiceProvider();
IStitchingContext stitchingContext = services.GetRequiredService <IStitchingContext>();
IRemoteQueryClient customerQueryClient = stitchingContext.GetRemoteQueryClient("foo");
IReadOnlyQueryRequest request = QueryRequestBuilder.New()
.SetQuery("query ($foo: Int!) { foo(a: $foo) }")
.SetVariableValue("foo", 1)
.Create();
Task <IExecutionResult> executeTask = customerQueryClient.ExecuteAsync(request);
await customerQueryClient.DispatchAsync(CancellationToken.None);
IExecutionResult result = await executeTask;
result.MatchSnapshot();
}
private static IReadOnlyList <VariableValue> ResolveScopedVariables(
IResolverContext context,
NameString schemaName,
OperationType operationType,
IEnumerable <SelectionPathComponent> components)
{
IStitchingContext stitchingContext =
context.Service <IStitchingContext>();
ISchema remoteSchema =
stitchingContext.GetRemoteSchema(schemaName);
IComplexOutputType type =
remoteSchema.GetOperationType(operationType);
var variables = new List <VariableValue>();
SelectionPathComponent[] comps = components.Reverse().ToArray();
for (int i = 0; i < comps.Length; i++)
{
SelectionPathComponent component = comps[i];
if (!type.Fields.TryGetField(component.Name.Value,
out IOutputField field))
{
throw new QueryException(new Error
{
Message = string.Format(
CultureInfo.InvariantCulture,
StitchingResources
.DelegationMiddleware_PathElementInvalid,
component.Name.Value,
type.Name)
});
}
ResolveScopedVariableArguments(
context, component, field, variables);
if (i + 1 < comps.Length)
{
if (!field.Type.IsComplexType())
{
throw new QueryException(new Error
{
Message = StitchingResources
.DelegationMiddleware_PathElementTypeUnexpected
});
}
type = (IComplexOutputType)field.Type.NamedType();
}
}
return(variables);
}
public RemoteQueryBatchOperation(IStitchingContext context)
{
_subscription = context.Subscribe(this);
}