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resolver.go
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resolver.go
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//go:generate gorunpkg github.com/99designs/gqlgen
package integration
import (
"context"
"fmt"
"remote_api"
"time"
"github.com/99designs/gqlgen/integration/models-go"
)
type CustomError struct {
UserMessage string
InternalError string
}
func (e *CustomError) Error() string {
return e.InternalError
}
type Resolver struct{}
func (r *Resolver) User() UserResolver {
return &userResolver{r}
}
func (r *Resolver) Element() ElementResolver {
return &elementResolver{r}
}
func (r *Resolver) Query() QueryResolver {
return &queryResolver{r}
}
type elementResolver struct{ *Resolver }
func (r *elementResolver) Error(ctx context.Context, obj *models.Element) (bool, error) {
// A silly hack to make the result order stable
time.Sleep(time.Duration(obj.ID) * 10 * time.Millisecond)
return false, fmt.Errorf("boom")
}
func (r *elementResolver) Mismatched(ctx context.Context, obj *models.Element) ([]bool, error) {
return []bool{true}, nil
}
func (r *elementResolver) Child(ctx context.Context, obj *models.Element) (models.Element, error) {
return models.Element{ID: obj.ID * 10}, nil
}
type queryResolver struct{ *Resolver }
func (r *queryResolver) Error(ctx context.Context, typeArg models.ErrorType) (bool, error) {
if typeArg == models.ErrorTypeCustom {
return false, &CustomError{"User message", "Internal Message"}
}
return false, fmt.Errorf("Normal error")
}
func (r *queryResolver) Path(ctx context.Context) ([]*models.Element, error) {
return []*models.Element{{1}, {2}, {3}, {4}}, nil
}
func (r *queryResolver) Date(ctx context.Context, filter models.DateFilter) (bool, error) {
if filter.Value != "asdf" {
return false, fmt.Errorf("value must be asdf")
}
if *filter.Timezone != "UTC" {
return false, fmt.Errorf("timezone must be utc")
}
if *filter.Op != models.DateFilterOpEq {
return false, fmt.Errorf("unknown op %s", *filter.Op)
}
return true, nil
}
func (r *queryResolver) Viewer(ctx context.Context) (*models.Viewer, error) {
return &models.Viewer{
User: &remote_api.User{Name: "Bob"},
}, nil
}
func (r *queryResolver) JSONEncoding(ctx context.Context) (string, error) {
return "\U000fe4ed", nil
}
type userResolver struct{ *Resolver }
func (r *userResolver) Likes(ctx context.Context, obj *remote_api.User) ([]string, error) {
return obj.Likes, nil
}