add graphql example

#2029

_examples/graphql/schema-first/graph/model/models_gen.go

@@ -0,0 +1,66 @@
+// Code generated by github.com/99designs/gqlgen, DO NOT EDIT.
+
+package model
+
+import (
+	"fmt"
+	"io"
+	"strconv"
+)
+
+type Character struct {
+	ID         string     `json:"id"`
+	Name       string     `json:"name"`
+	IsHero     bool       `json:"isHero"`
+	CliqueType CliqueType `json:"cliqueType"`
+}
+
+type CharacterInput struct {
+	Name       string     `json:"name"`
+	ID         *string    `json:"id"`
+	IsHero     *bool      `json:"isHero"`
+	CliqueType CliqueType `json:"cliqueType"`
+}
+
+type CliqueType string
+
+const (
+	// People who are elite with parents having money
+	CliqueTypeKooks CliqueType = "KOOKS"
+	// People who desperate to move up the social ladder to become new versions of themselves and establish new beginnings
+	CliqueTypePogues CliqueType = "POGUES"
+)
+
+var AllCliqueType = []CliqueType{
+	CliqueTypeKooks,
+	CliqueTypePogues,
+}
+
+func (e CliqueType) IsValid() bool {
+	switch e {
+	case CliqueTypeKooks, CliqueTypePogues:
+		return true
+	}
+	return false
+}
+
+func (e CliqueType) String() string {
+	return string(e)
+}
+
+func (e *CliqueType) UnmarshalGQL(v interface{}) error {
+	str, ok := v.(string)
+	if !ok {
+		return fmt.Errorf("enums must be strings")
+	}
+
+	*e = CliqueType(str)
+	if !e.IsValid() {
+		return fmt.Errorf("%s is not a valid CliqueType", str)
+	}
+	return nil
+}
+
+func (e CliqueType) MarshalGQL(w io.Writer) {
+	fmt.Fprint(w, strconv.Quote(e.String()))
+}

_examples/graphql/schema-first/graph/resolver.go

@@ -0,0 +1,11 @@
+package graph
+
+import "github.com/iris-contrib/outerbanks-api/graph/model"
+
+// This file will not be regenerated automatically.
+//
+// It serves as dependency injection for your app, add any dependencies you require here.
+
+type Resolver struct {
+	CharacterStore map[string]model.Character
+}

_examples/graphql/schema-first/graph/schema.graphqls

@@ -0,0 +1,33 @@
+# GraphQL schema example
+#
+# https://gqlgen.com/getting-started/
+
+enum CliqueType {
+  "People who are elite with parents having money"
+  KOOKS
+  "People who desperate to move up the social ladder to become new versions of themselves and establish new beginnings"
+  POGUES
+}
+
+type Character {
+  id: ID!
+  name: String!
+  isHero: Boolean!
+  cliqueType: CliqueType!
+}
+
+input CharacterInput {
+  name: String!
+  id: String
+  isHero: Boolean
+  cliqueType: CliqueType!
+}
+
+type Mutation {
+  upsertCharacter(input: CharacterInput!): Character!
+}
+
+type Query {
+  character(id:ID!): Character
+  characters(cliqueType:CliqueType!): [Character!]
+}

_examples/graphql/schema-first/graph/schema.resolvers.go

@@ -0,0 +1,77 @@
+package graph
+
+// This file will be automatically regenerated based on the schema, any resolver implementations
+// will be copied through when generating and any unknown code will be moved to the end.
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+
+	"github.com/iris-contrib/outerbanks-api/graph/model"
+)
+
+func (r *mutationResolver) UpsertCharacter(ctx context.Context, input model.CharacterInput) (*model.Character, error) {
+	id := input.ID
+	var character model.Character
+	character.Name = input.Name
+	character.CliqueType = input.CliqueType
+
+	n := len(r.Resolver.CharacterStore)
+	if n == 0 {
+		r.Resolver.CharacterStore = make(map[string]model.Character)
+	}
+
+	if id != nil {
+		cs, ok := r.Resolver.CharacterStore[*id]
+		if !ok {
+			return nil, fmt.Errorf("not found")
+		}
+		if input.IsHero != nil {
+			character.IsHero = *input.IsHero
+		} else {
+			character.IsHero = cs.IsHero
+		}
+		r.Resolver.CharacterStore[*id] = character
+	} else {
+		// generate unique id
+		nid := strconv.Itoa(n + 1)
+		character.ID = nid
+		if input.IsHero != nil {
+			character.IsHero = *input.IsHero
+		}
+		r.Resolver.CharacterStore[nid] = character
+	}
+
+	return &character, nil
+}
+
+func (r *queryResolver) Character(ctx context.Context, id string) (*model.Character, error) {
+	character, ok := r.Resolver.CharacterStore[id]
+	if !ok {
+		return nil, fmt.Errorf("not found")
+	}
+	return &character, nil
+}
+
+func (r *queryResolver) Characters(ctx context.Context, cliqueType model.CliqueType) ([]*model.Character, error) {
+	characters := make([]*model.Character, 0)
+	for idx := range r.Resolver.CharacterStore {
+		character := r.Resolver.CharacterStore[idx]
+		if character.CliqueType == cliqueType {
+
+			characters = append(characters, &character)
+		}
+	}
+
+	return characters, nil
+}
+
+// Mutation returns generated.MutationResolver implementation.
+func (r *Resolver) Mutation() MutationResolver { return &mutationResolver{r} }
+
+// Query returns generated.QueryResolver implementation.
+func (r *Resolver) Query() QueryResolver { return &queryResolver{r} }
+
+type mutationResolver struct{ *Resolver }
+type queryResolver struct{ *Resolver }