/
selection.go
69 lines (56 loc) · 1.59 KB
/
selection.go
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//go:generate go run ../../testdata/gqlgen.go
package selection
import (
"context"
"fmt"
"time"
"github.com/vektah/gqlparser/v2/ast"
"github.com/99designs/gqlgen/graphql"
)
type Resolver struct{}
func (r *Resolver) Query() QueryResolver {
return &queryResolver{r}
}
type queryResolver struct{ *Resolver }
func (r *queryResolver) Events(ctx context.Context) ([]Event, error) {
var sels []string
reqCtx := graphql.GetOperationContext(ctx)
fieldSelections := graphql.GetFieldContext(ctx).Field.Selections
for _, sel := range fieldSelections {
switch sel := sel.(type) {
case *ast.Field:
sels = append(sels, fmt.Sprintf("%s as %s", sel.Name, sel.Alias))
case *ast.InlineFragment:
sels = append(sels, fmt.Sprintf("inline fragment on %s", sel.TypeCondition))
case *ast.FragmentSpread:
fragment := reqCtx.Doc.Fragments.ForName(sel.Name)
sels = append(sels, fmt.Sprintf("named fragment %s on %s", sel.Name, fragment.TypeCondition))
}
}
var events []Event
for i := 0; i < 10; i++ {
if i%2 == 0 {
events = append(events, &Like{
Selection: sels,
Collected: formatCollected(graphql.CollectFieldsCtx(ctx, []string{"Like"})),
Reaction: ":=)",
Sent: time.Now(),
})
} else {
events = append(events, &Post{
Selection: sels,
Collected: formatCollected(graphql.CollectFieldsCtx(ctx, []string{"Post"})),
Message: "Hey",
Sent: time.Now(),
})
}
}
return events, nil
}
func formatCollected(cf []graphql.CollectedField) []string {
res := make([]string, len(cf))
for i, f := range cf {
res[i] = f.Name + " as " + f.Alias
}
return res
}