chat

package
Version: v0.0.0-...-44beadc Latest Latest
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Published: Dec 6, 2021 License: MIT Imports: 12 Imported by: 22

README

Chat App

Example app using subscriptions to build a chat room.

Server
go run ./server/server.go
Client

The react app uses two different implementation for the websocket link

First you need to install the dependencies

npm install

Then to run the app with the apollo-link-ws implementation do

npm run start

or to run the app with the graphql-ws implementation (and the newer graphql-transport-ws protocol) do

npm run start:graphql-transport-ws

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func NewExecutableSchema

func NewExecutableSchema(cfg Config) graphql.ExecutableSchema

NewExecutableSchema creates an ExecutableSchema from the ResolverRoot interface.

Types

type Chatroom

type Chatroom struct {
	Name      string
	Messages  []Message
	Observers map[string]struct {
		Username string
		Message  chan *Message
	}
}

type ComplexityRoot

type ComplexityRoot struct {
	Chatroom struct {
		Messages func(childComplexity int) int
		Name     func(childComplexity int) int
	}

	Message struct {
		CreatedAt func(childComplexity int) int
		CreatedBy func(childComplexity int) int
		ID        func(childComplexity int) int
		Text      func(childComplexity int) int
	}

	Mutation struct {
		Post func(childComplexity int, text string, username string, roomName string) int
	}

	Query struct {
		Room func(childComplexity int, name string) int
	}

	Subscription struct {
		MessageAdded func(childComplexity int, roomName string) int
	}
}

type Config

type Config struct {
	Resolvers  ResolverRoot
	Directives DirectiveRoot
	Complexity ComplexityRoot
}

func New

func New() Config

type DirectiveRoot

type DirectiveRoot struct {
	User func(ctx context.Context, obj interface{}, next graphql.Resolver, username string) (res interface{}, err error)
}

type Message

type Message struct {
	ID        string    `json:"id"`
	Text      string    `json:"text"`
	CreatedBy string    `json:"createdBy"`
	CreatedAt time.Time `json:"createdAt"`
}

type MutationResolver

type MutationResolver interface {
	Post(ctx context.Context, text string, username string, roomName string) (*Message, error)
}

type QueryResolver

type QueryResolver interface {
	Room(ctx context.Context, name string) (*Chatroom, error)
}

type ResolverRoot

type ResolverRoot interface {
	Mutation() MutationResolver
	Query() QueryResolver
	Subscription() SubscriptionResolver
}

type SubscriptionResolver

type SubscriptionResolver interface {
	MessageAdded(ctx context.Context, roomName string) (<-chan *Message, error)
}

Directories

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