Convert Golang Struct To GraphQL Object On The Fly

Go Report Card GoDoc GoCover

Straf

  1. Convert Golang Struct To GraphQL Object On The Fly
  2. Easily Create GraphQL Schemas

Example

Converting struct to GraphQL Object

type UserExtra struct {
    Age int `description:"Age of the user"` // You can use description struct tag to add description
    Gender string `deprecationReason:"Some Reason"` // You can use deprecationReason tag to add a deprecation reason
}

type User struct {
    UserID int
    Username string `unique:"true"` // You can use unique tag to define if a field would be unique
    Extra UserExtra
    Password string `exclude:"true"` // You can use exclude tag to exclude a field
}


func main() {
    // GetGraphQLObject will convert golang struct to a graphQL object
    userType, err := straf.GetGraphQLObject(User{})

    // You can then use userType in your graphQL schema
}

Using The Schema Builder

type User struct {
    UserID int `isArg:"true"` // You can use isArg tag to define a field as a graphql argument
    Username string `isArg:"true"`
}

var database []User = []User{}

func main() {
    // GetGraphQLObject will convert golang struct to a graphQL object
    userType, err := straf.GetGraphQLObject(User{})

    builder := straf.NewSchemaBuilder(userType, User{})
    
    builder.AddArgumentsFromStruct(object2{}) // You can use this function to add more arguments from a struct
    builder.AddFunction("CreateUser", 
                        "Adds a user to database",
                        func(params graphql.ResolveParams) (interface{}, error)) {
                            id := params.Args["UserID"]
                            username := params.Args["Username"]
                            database = append(database, User{UserID: id, Username: Username})
                        })
    schema := builder.Schema
    // You can then use this schema
}

Using Middleware In Schema Builder

func middleware(function func(graphql.ResolveParams) (interface{}, error), params graphql.ResolveParams) (interface{}, error) {

    fmt.Println("This function will run as a middleware")

    return function(params)
}

func main() {
    builder := straf.NewSchemaBuilder(userType, User{}, middleware)

    builder.AddFunction("SomeFunction", 
                        "Does Something",
                        someFunction)

   // Here the middleware function would run everytime before someFunction. middleware function would act as a middleware to all functions added to schema builder.
}

Author

Roshan Jignesh Mehta - [email protected]

Owner
Similar Resources

gqlanalysis makes easy to develop static analysis tools for GraphQL in Go.

gqlanalysis makes easy to develop static analysis tools for GraphQL in Go.

gqlanalysis gqlanalysis defines the interface between a modular static analysis for GraphQL in Go. gqlanalysis is inspired by go/analysis. gqlanalysis

Dec 14, 2022

Go monolith with embedded microservices including GRPC,REST,GraphQL and The Clean Architecture.

Go monolith with embedded microservices including GRPC,REST,GraphQL and The Clean Architecture.

GoArcc - Go monolith with embedded microservices including GRPC,REST, graphQL and The Clean Architecture. Description When you start writing a Go proj

Dec 21, 2022

GraphQL implementation for click house in Go.

GraphQL implementation for click house in Go.

clickhouse-graphql-go GraphQL implementation for clickhouse in Go. This package stores real time streaming websocket data in clickhouse and uses Graph

Nov 20, 2022

GraphQL parser comparison in different languages

graphql-parser-bench Parsing a schema or document can be a critical part of the application, especially if you have to care about latency. This is the

Jul 10, 2022

A simple Go, GraphQL, and PostgreSQL starter template

Simple Go/GraphQL/PostgreSQL template Purpose Have a good starting point for any project that needs a graphql, go, and postgres backend. It's a very l

Jan 8, 2022

This app is an attempt towards using go lang with graphql data fetch in react front end.

go_movies _A React js + GraphQL supported with backend in GoLang. This app is an attempt towards using go lang with graphql data fetch in react front

Dec 7, 2021

proof-of-concept minimal GraphQL service for LTV

LTV GraphQL Proof-of-Concept This is a barebones proof-of-concept of a possible GraphQL implementation that interacts with Core. It includes a few ver

Jan 4, 2022

Learn GraphQL with THE IDOLM@STER SHINY COLORS.

faaaar Learn GraphQL with THE IDOLM@STER SHINY COLORS. Getting Started The following is a simple example which get information about 20-year-old idols

Dec 11, 2022

A simple (yet effective) GraphQL to HTTP / REST router

ReGraphQL A simple (yet effective) GraphQL to REST / HTTP router. ReGraphQL helps you expose your GraphQL queries / mutations as REST / HTTP endpoints

Dec 12, 2022
An implementation of GraphQL for Go / Golang

graphql An implementation of GraphQL in Go. Follows the official reference implementation graphql-js. Supports: queries, mutations & subscriptions. Do

Dec 26, 2022
Tools to write high performance GraphQL applications using Go/Golang.

graphql-go-tools Sponsors WunderGraph Are you looking for a GraphQL e2e data fetching solution? Supports frameworks like NextJS, type safety with gene

Dec 27, 2022
A GraphQL complete example using Golang And PostgreSQL

GraphQL with Golang A GraphQL complete example using Golang & PostgreSQL Installation Install the dependencies go get github.com/graphql-go/graphql go

Dec 6, 2022
A collection of Go packages for creating robust GraphQL APIs

api-fu api-fu (noun) (informal) Mastery of APIs. ?? Packages The top level apifu package is an opinionated library that aims to make it as easy as pos

Dec 28, 2022
graphql parser + utilities

graphql utilities for dealing with GraphQL queries in Go. This package focuses on actually creating GraphQL servers and expects you to describe your s

Dec 20, 2022
GraphQL server with a focus on ease of use
GraphQL server with a focus on ease of use

graphql-go The goal of this project is to provide full support of the GraphQL draft specification with a set of idiomatic, easy to use Go packages. Wh

Dec 31, 2022
GraphQL server with a focus on ease of use
GraphQL server with a focus on ease of use

graphql-go The goal of this project is to provide full support of the GraphQL draft specification with a set of idiomatic, easy to use Go packages. Wh

Dec 25, 2022
GQLEngine is the best productive solution for implementing a GraphQL server 🚀

GQLEngine is the best productive solution for implementing a graphql server for highest formance examples starwars: https://github.com/gqlengine/starw

Apr 24, 2022
⚡️ A Go framework for rapidly building powerful graphql services

Thunder is a Go framework for rapidly building powerful graphql servers. Thunder has support for schemas automatically generated from Go types, live q

Dec 24, 2022
go generate based graphql server library
go generate based graphql server library

gqlgen What is gqlgen? gqlgen is a Go library for building GraphQL servers without any fuss. gqlgen is based on a Schema first approach — You get to D

Dec 31, 2022