/// <summary>
/// Add any methods marked with GraphQLMutationAttribute in the given type to the schema. Names are added as lowerCaseCamel`
/// </summary>
/// <param name="mutationClassInstance"></param>
/// <typeparam name="TType"></typeparam>
public void AddMutationFrom <TType>(TType mutationClassInstance)
{
foreach (var method in mutationClassInstance.GetType().GetMethods())
{
if (method.GetCustomAttribute(typeof(GraphQLMutationAttribute)) is GraphQLMutationAttribute attribute)
{
var isAsync = method.GetCustomAttribute(typeof(AsyncStateMachineAttribute)) != null;
string name = SchemaGenerator.ToCamelCaseStartsLower(method.Name);
//== JT: Allow user to customize the schema-first casing.
var n = (System.ComponentModel.DisplayNameAttribute)method.GetCustomAttribute(typeof(System.ComponentModel.DisplayNameAttribute), false);
if (n != null)
{
name = n.DisplayName;
}
//==
var claims = method.GetCustomAttributes(typeof(GraphQLAuthorizeAttribute)).Cast <GraphQLAuthorizeAttribute>();
var requiredClaims = new RequiredClaims(claims);
var actualReturnType = GetTypeFromMutationReturn(isAsync ? method.ReturnType.GetGenericArguments()[0] : method.ReturnType);
var typeName = GetSchemaTypeNameForDotnetType(actualReturnType);
var returnType = new GqlTypeInfo(() => GetReturnType(typeName), actualReturnType);
var mutationType = new MutationType(this, name, returnType, mutationClassInstance, method, attribute.Description, requiredClaims, isAsync, SchemaFieldNamer);
mutations[name] = mutationType;
}
}
}
internal Field(string name, LambdaExpression resolve, string description, GqlTypeInfo returnType, RequiredClaims authorizeClaims)
{
Name = name;
Description = description;
AuthorizeClaims = authorizeClaims;
ReturnType = returnType ?? throw new ArgumentNullException(nameof(returnType), "retypeType can not be null");
if (resolve != null)
{
if (resolve.Body.NodeType == ExpressionType.Call && ((MethodCallExpression)resolve.Body).Method.DeclaringType == typeof(ArgumentHelper) && ((MethodCallExpression)resolve.Body).Method.Name == "WithService")
{
// they are wanting services injected
var call = (MethodCallExpression)resolve.Body;
var lambdaExpression = (LambdaExpression)((UnaryExpression)call.Arguments.First()).Operand;
Resolve = lambdaExpression.Body;
Services = lambdaExpression.Parameters.Select(p => p.Type).ToList();
}
else
{
Resolve = resolve.Body;
}
FieldParam = resolve.Parameters.First();
if (resolve.Body.NodeType == ExpressionType.MemberAccess)
{
ReturnType.TypeNotNullable = GraphQLNotNullAttribute.IsMemberMarkedNotNull(((MemberExpression)resolve.Body).Member) || ReturnType.TypeNotNullable;
ReturnType.ElementTypeNullable = GraphQLElementTypeNullable.IsMemberElementMarkedNullable(((MemberExpression)resolve.Body).Member) || ReturnType.ElementTypeNullable;
}
}
}
public MutationType(ISchemaProvider schema, string methodName, GqlTypeInfo returnType, object mutationClassInstance, MethodInfo method, string description, RequiredClaims authorizeClaims, bool isAsync)
{
Description = description;
ReturnType = returnType;
this.mutationClassInstance = mutationClassInstance;
this.method = method;
Name = methodName;
AuthorizeClaims = authorizeClaims;
this.isAsync = isAsync;
argInstanceType = method.GetParameters()
.FirstOrDefault(p => p.GetCustomAttribute(typeof(MutationArgumentsAttribute)) != null || p.ParameterType.GetTypeInfo().GetCustomAttribute(typeof(MutationArgumentsAttribute)) != null)?.ParameterType;
if (argInstanceType != null)
{
foreach (var item in argInstanceType.GetProperties())
{
if (GraphQLIgnoreAttribute.ShouldIgnoreMemberFromInput(item))
{
continue;
}
argumentTypes.Add(SchemaGenerator.ToCamelCaseStartsLower(item.Name), ArgType.FromProperty(schema, item));
}
foreach (var item in argInstanceType.GetFields())
{
if (GraphQLIgnoreAttribute.ShouldIgnoreMemberFromInput(item))
{
continue;
}
argumentTypes.Add(SchemaGenerator.ToCamelCaseStartsLower(item.Name), ArgType.FromField(schema, item));
}
}
}
/// <summary>
/// Add a mapping from a Dotnet type to a GQL schema type. Make sure you have added the GQL type
/// in the schema as a Scalar type or full type
/// </summary>
/// <param name="gqlType">The GQL schema type in full form. E.g. [Int!]!, [Int], Int, etc.</param>
/// <typeparam name="TFrom"></typeparam>
public void AddTypeMapping <TFrom>(string gqlType)
{
var typeInfo = GqlTypeInfo.FromGqlType(this, typeof(TFrom), gqlType);
// add mapping
customTypeMappings.Add(typeof(TFrom), typeInfo);
SetupIntrospectionTypesAndField();
}
public MutationType(ISchemaProvider schema, string methodName, GqlTypeInfo returnType, object mutationClassInstance, MethodInfo method, string description, RequiredClaims authorizeClaims, bool isAsync, Func <MemberInfo, string> fieldNamer)
{
Description = description;
ReturnType = returnType;
this.mutationClassInstance = mutationClassInstance;
this.method = method;
Name = methodName;
AuthorizeClaims = authorizeClaims;
this.isAsync = isAsync;
argInstanceType = method.GetParameters()
.FirstOrDefault(p => p.GetCustomAttribute(typeof(MutationArgumentsAttribute)) != null || p.ParameterType.GetTypeInfo().GetCustomAttribute(typeof(MutationArgumentsAttribute)) != null)?.ParameterType;
if (argInstanceType != null)
{
foreach (var item in argInstanceType.GetProperties())
{
if (GraphQLIgnoreAttribute.ShouldIgnoreMemberFromInput(item))
{
continue;
}
argumentTypes.Add(fieldNamer(item), ArgType.FromProperty(schema, item));
}
foreach (var item in argInstanceType.GetFields())
{
if (GraphQLIgnoreAttribute.ShouldIgnoreMemberFromInput(item))
{
continue;
}
argumentTypes.Add(fieldNamer(item), ArgType.FromField(schema, item));
}
}
//== JT: Start Here
else
{
/*== JT
* When parameters are the standard System Types like; Int, String, etc or using the EntityGraphQL.Schema.RequiredField,
* loop through the parameters and NOT the object's properties
* NOTE: some parameters might be Services
* EX: public ReturnModel RemoveById(DataContext context, RequiredField<int> id)
*/
// !! Forcing a single parameter ONLY. Anything more than that should require a POCO !!
ParameterInfo item = method.GetParameters()
.FirstOrDefault(p => p.ParameterType.Namespace.StartsWith("EntityGraphQL.Schema") || p.ParameterType.Namespace.StartsWith("System"));
if (item.ParameterType.Name == "Nullable`1")
{
Type argType = item.ParameterType.GetGenericArguments()[0];
argInstanceType = argType;
}
else
{
argInstanceType = item.ParameterType;
}
//TODO: see if able to use the "fieldNamer()" function
argumentTypes.Add(SchemaGenerator.ToCamelCaseStartsLower(item.Name), ArgType.FromParameter(schema, item));
}
//==
}
public static GqlTypeInfo FromGqlType(ISchemaProvider schema, Type dotnetType, string gqlType)
{
var strippedType = gqlType.Trim('!').Trim('[').Trim(']').Trim('!');
var typeInfo = new GqlTypeInfo(() => schema.Type(strippedType), dotnetType)
{
TypeNotNullable = gqlType.EndsWith("!"),
IsList = gqlType.Contains("["),
};
typeInfo.ElementTypeNullable = !(typeInfo.IsList && gqlType.Trim('!').Trim('[').Trim(']').EndsWith("!"));
return(typeInfo);
}
private static TypeElement BuildType(ISchemaProvider schema, GqlTypeInfo typeInfo, Type clrType, bool isInput = false)
{
// Is collection of objects?
var type = new TypeElement();
if (clrType.IsEnumerableOrArray())
{
type.Kind = "LIST";
type.Name = null;
type.OfType = BuildType(schema, typeInfo, clrType.GetEnumerableOrArrayType(), isInput);
}
else if (clrType.Name == "EntityQueryType`1")
{
type.Kind = "SCALAR";
type.Name = "String";
type.OfType = null;
}
else if (clrType.GetTypeInfo().IsEnum)
{
type.Kind = "ENUM";
type.Name = typeInfo.SchemaType.Name;
type.OfType = null;
}
else
{
type.Kind = typeInfo.SchemaType.IsScalar ? "SCALAR" : "OBJECT";
type.OfType = null;
if (type.Kind == "OBJECT" && isInput)
{
type.Kind = "INPUT_OBJECT";
//== JT: !! INPUT_OBJECT names MUST use camelCase to avoid collision to OBJECT types !!
type.Name = SchemaGenerator.ToCamelCaseStartsLower(typeInfo.SchemaType.Name);
}
else
{
type.Name = typeInfo.SchemaType.Name;
}
//==
}
if (typeInfo.TypeNotNullable)
{
return(new TypeElement
{
Kind = "NON_NULL",
Name = null,
OfType = type
});
}
return(type);
}
private static TypeElement BuildType(ISchemaProvider schema, GqlTypeInfo typeInfo, Type clrType, bool isInput = false)
{
// Is collection of objects?
var type = new TypeElement();
if (clrType.IsEnumerableOrArray())
{
type.Kind = "LIST";
type.Name = null;
type.OfType = BuildType(schema, typeInfo, clrType.GetEnumerableOrArrayType(), isInput);
}
else if (clrType.Name == "EntityQueryType`1")
{
type.Kind = "SCALAR";
type.Name = "String";
type.OfType = null;
}
else if (clrType.GetTypeInfo().IsEnum)
{
type.Kind = "ENUM";
type.Name = typeInfo.SchemaType.Name;
type.OfType = null;
}
else
{
type.Kind = typeInfo.SchemaType.IsScalar ? "SCALAR" : "OBJECT";
type.OfType = null;
if (type.Kind == "OBJECT" && isInput)
{
type.Kind = "INPUT_OBJECT";
}
type.Name = typeInfo.SchemaType.Name;
}
if (typeInfo.TypeNotNullable)
{
return(new TypeElement
{
Kind = "NON_NULL",
Name = null,
OfType = type
});
}
return(type);
}
/// <summary>
/// Add any methods marked with GraphQLMutationAttribute in the given type to the schema. Names are added as lowerCaseCamel`
/// </summary>
/// <param name="mutationClassInstance"></param>
/// <typeparam name="TType"></typeparam>
public void AddMutationFrom <TType>(TType mutationClassInstance)
{
foreach (var method in mutationClassInstance.GetType().GetMethods())
{
if (method.GetCustomAttribute(typeof(GraphQLMutationAttribute)) is GraphQLMutationAttribute attribute)
{
var isAsync = method.GetCustomAttribute(typeof(AsyncStateMachineAttribute)) != null;
string name = SchemaFieldNamer(method.Name);
var claims = method.GetCustomAttributes(typeof(GraphQLAuthorizeAttribute)).Cast <GraphQLAuthorizeAttribute>();
var requiredClaims = new RequiredClaims(claims);
var actualReturnType = GetTypeFromMutationReturn(isAsync ? method.ReturnType.GetGenericArguments()[0] : method.ReturnType);
var typeName = GetSchemaTypeNameForDotnetType(actualReturnType);
var returnType = new GqlTypeInfo(() => GetReturnType(typeName), actualReturnType);
var mutationType = new MutationType(this, name, returnType, mutationClassInstance, method, attribute.Description, requiredClaims, isAsync, SchemaFieldNamer);
mutations[name] = mutationType;
}
}
}
public Field(ISchemaProvider schema, string name, LambdaExpression resolve, string description, object argTypes, GqlTypeInfo returnType, RequiredClaims claims) : this(name, resolve, description, returnType, claims)
{
ArgumentTypesObject = argTypes;
allArguments = argTypes.GetType().GetProperties().ToDictionary(p => p.Name, p => ArgType.FromProperty(schema, p));
argTypes.GetType().GetFields().ToDictionary(p => p.Name, p => ArgType.FromField(schema, p)).ToList().ForEach(kvp => allArguments.Add(kvp.Key, kvp.Value));
}