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@jovercao/gql-js

v0.2.2

Published

graphql client manager

Downloads

6

Readme

gql-js

一个gql客户端工具库

特性

  • 可通过配置管理gql客户端实例 graphql.js
  • @jovercao/gql-loader配合使用达到可多连接多服务端的效果

使用方法

配置及客户端管理

import gql from 'gql-js'

// 初始化配置
gql.init({
    // 默认客户端实例
    defaults: 'instance1',
    clients: {
        // 实例名称,可通过get方法获取
        instance1: {
            // 服务端地址
            url: 'http://localhost/graphql',
            // 使用JSON格式POST, 默认为true
            asJson: true
            // ... 更多参数请参考 https://github.com/f/graphql.js
        }
    }
})

// instance1 为 `graphql.js` 实例, 具体使用请参考 https://github.com/f/graphql.js
// 通过配置名称获取
const instance1 = gql.getClient('instance1')
instance1(`query getUser($id: Int!) {
    user(id: $id) {
        name
        password
    }
}`, { id: 1 })

配合@jovercao/gql-loader使用

webpack的loader配置:

{
  test: /\.(graphql|gql)$/,
  exclude: /node_modules/,
  use: {
    loader: '@jovercao/gql-loader'
  }
}

项目结构:

  • src
    • gql
      • user ....................... 该目录下的gql文件将使用userInstance 实例
        • index.gql ........... 用户GQL查询定义
      • product.................... 该目录下的gql文件将使用 productInstance 实例
        • index.gql ...... 产品GQL查询定义
    • gqlInit.js ........... 客户端初始化JS
    • userSimple.js ... 调用JS

初始化JS:

// # src/gqlInit.js
import gql from 'gql-js'

// 初始化配置
gql.init({
    // 项目的整基础路径(绝对路径)
    basePath: __dirname + '/src/gql/',
    // 默认客户端实例,当匹配不到的时候均会使用此路径
    defaults: 'userInstance',
    clients: {
        userInstance: {
            // 用于查找client的匹配字符串,亦可以使用正则表达式
            match: './src/instance/**',
            // 地址
            url: 'http://localhost/graphql',
            // 使用JSON格式POST, 默认为true
            asJson: true
        },
        productInstance: {
            // 用于查找client的匹配字符串,亦可以使用正则表达式
            match: './src/instance/**',
            // 地址
            url: 'http://localhost/graphql',
            // 使用JSON格式POST, 默认为true
            asJson: true
        }
    }
})

GQL查询定义:

# src/user.gql

fragment userFields on User {
  name
  age
}

query get($name: String) {
  getUser(name: $name)
    ...userFields
  }
}

mutation update($user: InputUser!) {
  updateUser(input: $user) {
    ...userFields
  }
}

调用JS:

// src/userDemo.js

import User from './gql/user/index.gql'
import Product from './gql/product/index.gql'


(async function demo() {
    const user = await User.get({ name: 'foo' })
    user.age = 20
    const updatedUser = await user.update({ user })
})()