public static async Task <ExecutionResult> ExecuteMutationAsync(
QueryContext context)
{
var(schema, _, operation, initialValue, coercedVariableValues) = context;
var executionContext = context.BuildExecutorContext(new SerialExecutionStrategy());
var mutationType = schema.Mutation;
if (mutationType == null)
{
throw new GraphQLError(
"Schema does not support mutations. Mutation type is null.");
}
var selectionSet = operation.SelectionSet;
var path = new NodePath();
var data = await SelectionSets.ExecuteSelectionSetAsync(
executionContext,
selectionSet,
mutationType,
initialValue,
coercedVariableValues,
path).ConfigureAwait(false);
return(new ExecutionResult
{
Errors = executionContext
.FieldErrors
.Select(context.FormatError).ToList(),
Data = data
});
}
private static async Task <ExecutionResult> ExecuteSubscriptionEventAsync(
IExecutorContext context,
GraphQLOperationDefinition subscription,
Dictionary <string, object> coercedVariableValues,
object evnt,
Func <Exception, Error> formatError)
{
var subscriptionType = context.Schema.Subscription;
var selectionSet = subscription.SelectionSet;
var path = new NodePath();
var data = await SelectionSets.ExecuteSelectionSetAsync(
context,
selectionSet,
subscriptionType,
evnt,
coercedVariableValues,
path).ConfigureAwait(false);
var result = new ExecutionResult
{
Errors = context.FieldErrors.Select(formatError).ToList(),
Data = data
};
return(result);
}
public static async Task <ExecutionResult> ExecuteQueryAsync(
QueryContext context)
{
var(schema, _, operation, initialValue, coercedVariableValues) = context;
var queryType = schema.Query;
if (queryType == null)
{
throw new GraphQLError(
"Schema does not support queries. Query type is null.");
}
var selectionSet = operation.SelectionSet;
var executionContext = context.BuildExecutorContext(new ParallelExecutionStrategy());
IDictionary <string, object> data = null;
try
{
var path = new NodePath();
data = await SelectionSets.ExecuteSelectionSetAsync(
executionContext,
selectionSet,
queryType,
initialValue,
coercedVariableValues,
path).ConfigureAwait(false);
}
catch (GraphQLError e)
{
executionContext.AddError(e);
data = null;
}
return(new ExecutionResult
{
Errors = executionContext
.FieldErrors
.Select(context.FormatError)
.ToList(),
Data = data
});
}
