gophers-golang-example

Run it Local

go get -v all
go mod vendor
go generate
go run main.go

How to create new Querys, Mutations or Resolvers

1. Extend the .graphql-schema-files

   type Todo {
     uid: ID
     name: String
     comment(id: String): [Comment]
   }

   create some querys and mutations

   type Query {
     todo(uid: ID!): Todo
     todos(uid: ID!): [Todo]
   }
   type Mutation {
     createTodo(todo: String!): Todo
   }

2. Create a new package e.g. todoresolver in the resolver-folder

   package todoresolver

3. Create a struct and name it like ResolverTodo

   type ResolverTodo struct{}

4. Create a model that represent the results

   package model
    // Todo Model
    type Todo struct {
    UID string `json:"uid"`
    Name string `json:"name"`
    }

5. Bind model to Response

   type ResponseTodo struct {
   todo *model.Todo
   }

6. Create the Resolver-Functions that match the model-properties

   each propertie need his own resolver-function

   func (r *ResponseTodo) Name() *string {
   return &r.todo.Name
   }

7. Creating the resolver for the querys or mutations and bind them

   // Todo Resolver
   func (r *ResolverTodo) Todo(ctx context.Context, args *struct {
      UID string
   }) (*ResponseTodo, error) {
      todo := &ResponseTodo{todo: &model.Todo{Name: "name", UID: "id1"}}
      return todo, nil
   }

8. Bind resolver to rootresolver

   package rootresolver
   
   import (
       todoresolver "graphql/resolver/todo"
       ...
   )
   // Resolver export
   type Resolver struct {
       todoresolver.ResolverTodo
       ...
   }

Build Binary

t.b.a