{"id":1909,"date":"2019-05-13T20:23:21","date_gmt":"2019-05-13T11:23:21","guid":{"rendered":"https:\/\/lovelinux.mydns.jp\/?p=1909"},"modified":"2019-05-13T22:16:26","modified_gmt":"2019-05-13T13:16:26","slug":"apollo-server%e3%80%81graphql%e3%80%81nodejs%e3%80%81sequesize%e3%80%81%e3%83%95%e3%83%ad%e3%83%b3%e3%83%88%e3%81%abreactredux%e3%81%a7-%e3%83%9e%e3%82%b9%e3%82%bf%e3%83%bc%e3%83%a1%e3%83%b3-3","status":"publish","type":"post","link":"https:\/\/lovelinux.mydns.jp\/?p=1909","title":{"rendered":"Apollo Server\u3001GraphQL\u3001nodejs\u3001sequesize\u3001\u30d5\u30ed\u30f3\u30c8\u306bReact+Redux\u3067 \u30de\u30b9\u30bf\u30fc\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u4f5c\u308d\u3046! \u301cVol.4"},"content":{"rendered":"

\u524d\u56de\u306b\u7d9a\u3044\u3066<\/h3>\n

\u3055\u3066\u3001\u3053\u3053\u304b\u3089\u304c\u672c\u756a\u3067\u3059\u3002\u672c\u6765\u306a\u3089\u3070 Apollo Client\u3092\u4f7f\u3046\u3079\u304d\u306a\u306e\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001
\n\u79c1\u306e\u500b\u4eba\u7684\u306a\u898b\u89e3\u3067\u306f Apollo Client \u306f\u76f8\u5f53\u4f7f\u3044\u3065\u3089\u3044\u3067\u3059\u3002
\n\u306a\u306e\u3067\u3001 graphql-request \u3068\u3044\u3046\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u4f7f\u3063\u3066\u3001 GraphQL\u306e Query\u3068Mutaion\u3092\u884c\u3044\u307e\u3059\u3002
\n\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u306f GraphQL\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3055\u3048\u98db\u3093\u3067\u304f\u308c\u3070\u51e6\u7406\u3067\u304d\u308b\u306e\u3067\u305d\u308c\u3067\u554f\u984c\u306a\u3057\u3067\u3059\uff01<\/p>\n

\u79c1\u306f\u3053\u306e\u3084\u308a\u65b9\u304c\u975e\u5e38\u306b\u6c17\u306b\u5165\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u8a18\u4e8b\u306f\uff15\u56de\u306b\u5206\u3051\u3066\u9023\u8f09\u3059\u308b\u3001\u7b2c\uff14\u56de\u306e\u8a18\u4e8b\u3067\u3059\u3002<\/p>\n

<\/p>\n

\u30fb\u7b2c\uff11\u56de Apollo Server\u304c\u52d5\u304f\u3068\u3053\u308d\u307e\u3067<\/a><\/p>\n

\u30fb\u7b2c\uff12\u56de Apollo Server\u914d\u4e0b\u3067\u3001GraphQL\u3092\u4f7f\u3063\u3066\u5546\u54c1\u30de\u30b9\u30bf\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b<\/a><\/p>\n

\u30fb\u7b2c\uff13\u56de \u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3092React\uff0bRedux\uff0bgraphql-request\u3092\u4f7f\u3063\u3066\u5b9f\u88c5\u3059\u308b<\/a><\/p>\n

\u30fb\u7b2c\uff14\u56de \u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u304b\u3089graphql-request\u3092\u4f7f\u3063\u3066\u3001\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u30fb\u8868\u793a\u3059\u308b\uff08\u3053\u306e\u8a18\u4e8b\uff09<\/a><\/p>\n

\u30fb\u7b2c\uff15\u56de graphql-request\u3092\u4f7f\u3063\u3066\u3001\u30c7\u30fc\u30bf\u3092\u767b\u9332\u30fb\u4fee\u6b63\u30fb\u524a\u9664\u3059\u308b<\/a><\/p>\n

<\/font><\/p>\n

GraphQL\u30a2\u30af\u30bb\u30b9\u306e\u4e2d\u5fc3\u3068\u306a\u308bcontainer\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210<\/h3>\n

GET_PRODUCTS\u3067\u3001\u30c7\u30fc\u30bf\u3092N\u4ef6\u53d6\u5f97\u3057\u307e\u3059\u3002
\n\u5b9f\u969b\u306b\u306f onLoadData \u95a2\u6570\u5185\u3067 GET_PRODUCTS\u30af\u30a8\u30ea\u3067\u3001GraphQL \u30ea\u30af\u30a8\u30b9\u30c8\u3092\u884c\u3044\u3001\u30c7\u30fc\u30bf\u3092N\u4ef6\u53d6\u5f97\u3057\u307e\u3059\u3002
\nRedux\u306e container\u306b\u3064\u3044\u3066\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u5834\u5408\u306f\u3001\u307f\u3063\u3061\u308a\u4e88\u7fd2\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

[bash]
\n$ nano containers\/cproduct.js
\n[\/bash]<\/p>\n

[bash]
\nimport {connect} from “react-redux”;
\nimport {GraphQLClient} from “graphql-request”;<\/p>\n

import Product from “..\/components\/product”;
\nimport {set_list_body, set_has_more} from “..\/actions\/product”;<\/p>\n

const GET_PRODUCTS = `
\n query GetProducts ($offset: Int!, $limit: Int!){
\n getProducts(offset: $offset, limit: $limit){
\n has_more
\n products {
\n id
\n product_name
\n price
\n }
\n }
\n }
\n`;<\/p>\n

const HOST_ADDR = “http:\/\/localhost:4000”;
\nlet LIST_OFFSET = 0;
\nlet LIST_LIMIT = 100;<\/p>\n

const mapStateToProps = (state) => {
\n return {
\n list_body: state.product.list_body,
\n has_more: state.product.has_more,
\n }
\n}<\/p>\n

const mapDispatchToProps = (dispatch) => {
\n return {
\n onInit: () => {
\n LIST_OFFSET = 0;
\n onLoadData(LIST_OFFSET, [], dispatch)
\n },
\n onAddNew: (history) => {
\n history.push(“\/product\/add\/none”)
\n },
\n onLoadMore: (list_body) => {
\n onLoadData(LIST_OFFSET, list_body, dispatch)
\n },<\/p>\n

}
\n}<\/p>\n

const onLoadData = (offset, list_body, dispatch) => {<\/p>\n

const client = createClient();
\n let variables = {offset: offset , limit: LIST_LIMIT};<\/p>\n

client.request(GET_PRODUCTS, variables).then(data => {
\n let newList = list_body;
\n for (let i=0; i < data.getProducts.products.length; i++){\n newList = newList.concat(data.getProducts.products[i]);\n }\n\n dispatch(set_list_body(newList));\n\n LIST_OFFSET += LIST_LIMIT;\n dispatch(set_has_more(data.getProducts.has_more));\n\n })\n\n}\n\n\nconst createClient =() => {
\n const client = new GraphQLClient(HOST_ADDR + “\/graphql”, {
\n headers: {
\n “x-token”: “test-test”,
\n },
\n });<\/p>\n

return client;
\n}<\/p>\n

const CProduct = connect(mapStateToProps, mapDispatchToProps)(Product)<\/p>\n

export default CProduct<\/p>\n

[\/bash]<\/p>\n

\u30da\u30fc\u30b8\u8868\u793a\u6642\u306b\u30c7\u30fc\u30bf\u3092\u30ed\u30fc\u30c9\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b<\/h3>\n

\u30da\u30fc\u30b8\u3092\u69cb\u6210\u3059\u308b product.js\u30d5\u30a1\u30a4\u30eb\u3092\u7de8\u96c6\u3057\u3001componentDidMount\u304b\u3089\u3001
\ncontainer\u306e onInit\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n

[bash]
\n$ nano components\/product.js
\n[\/bash]<\/p>\n

componentDidMount\u3000\u3092\u8ffd\u8a18\u3057\u307e\u3059\u3002<\/p>\n

[bash]
\nimport React from “react”;
\nimport Menu from “.\/menu”;<\/p>\n

class Product extends React.Component {
\n componentDidMount() {
\n this.props.onInit();
\n }
\n render(){
\n return (<\/p>\n

\n <\/p>\n

This is Product<\/h3>\n<\/p><\/div>\n

)
\n }
\n}<\/p>\n

export default Product;
\n[\/bash]<\/p>\n

App.js\u306e\u8abf\u6574<\/h3>\n

\u30b3\u30f3\u30c6\u30ca\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u304c\u3001\u4f5c\u6210\u3057\u305f\u3060\u3051\u3067\u306f\u5229\u7528\u3055\u308c\u306a\u3044\u306e\u3067\u3001
\nproduct.js\u306e\u4ee3\u308f\u308a\u306b\u3001cproduct.js\u3092\u5229\u7528\u3059\u308b\u3088\u3046\u306b\u66f8\u304d\u63db\u3048\u307e\u3059\u3002<\/p>\n

[bash]
\n$nano App.js
\n[\/bash]<\/p>\n

components\/product.js \u3067\u306f\u306a\u304f\u3001 \u30b3\u30f3\u30c6\u30ca\u5074\u306e containers\/cproduct.js \u3092\u53c2\u7167\u3057\u307e\u3059\u3002<\/p>\n

[bash]<\/p>\n

import React from ‘react’;
\nimport {Router, Route} from “react-router-dom”;
\nimport history from ‘.\/history’;<\/p>\n

import Home from “.\/components\/home”;
\nimport About from “.\/components\/about”;
\nimport CProduct from “.\/containers\/cproduct”;<\/p>\n

function App() {
\n return (<\/p>\n

\n

GraphQL \u3068 Apollo Server\u3092\u4f7f\u3063\u305f\u30de\u30b9\u30bf\u30fc\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/h3>\n


\n
\n
\n <\/p>\n

<\/Router>\n <\/div>\n

);
\n}<\/p>\n

export default App;<\/p>\n

[\/bash]<\/p>\n

\u30c7\u30fc\u30bf\u306f\u8aad\u307f\u8fbc\u307e\u308c\u308b\u304b\uff1f<\/h3>\n

\u3053\u308c\u3067\u3001server\u3092 npm start \u3057\u3001front \u3082 npm start \u3059\u308b\u3068
\n\u30c7\u30fc\u30bf\u304c\u8aad\u307f\u8fbc\u307e\u308c\u307e\u3059\u3002
\n\u5b9f\u969b\u306b\u8a66\u3057\u3066\u307f\u3066\u3001chrome\u3067\u3001\u30c7\u30d0\u30c3\u30b0\u306a\u3069\u5165\u308c\u308b\u3068\u3001\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3081\u3066\u3044\u308b\u3053\u3068\u304c\u89e3\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

\u30c7\u30fc\u30bf\u8868\u793a\u90e8\u5206\u306e\u4f5c\u6210<\/h3>\n

\u809d\u5fc3\u306e\u8aad\u307f\u8fbc\u3093\u3060\u30c7\u30fc\u30bf\u3092\u4e00\u89a7\u8868\u793a\u3059\u308b\u3068\u3053\u308d\u304c\u3042\u308a\u307e\u305b\u3093\u306e\u3067\u3001\u305d\u308c\u3092\u8a18\u8ff0\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n

[bash]
\n$ nano components\/product.js
\n[\/bash]<\/p>\n

[bash]
\nimport React from “react”;
\nimport Menu from “.\/menu”;<\/p>\n

class Product extends React.Component {
\n componentDidMount() {
\n this.props.onInit();
\n }
\n render(){
\n let {list_body, has_more} = this.props;<\/p>\n

let lstBody = [];<\/p>\n

for (let i = 0 ; i < list_body.length ; i++){\n let bd = list_body[i];\n lstBody.push(\n \n\n

\n
{bd.id}<\/div>\n
{bd.product_name}<\/div>\n
{bd.price}<\/div>\n<\/p><\/div>\n

);
\n }<\/p>\n

return (<\/p>\n

\n <\/p>\n

This is Product<\/h3>\n
\n {lstBody}\n <\/div>\n<\/p><\/div>\n

)
\n }
\n}<\/p>\n

export default Product;
\n[\/bash]<\/p>\n

\u3053\u308c\u3067\u3001\u56f3\u306e\u3088\u3046\u306b\u4e00\u89a7\u8868\u793a\u3067\u304d\u3066\u3044\u305f\u3089OK\u3067\u3059\u3002<\/p>\n

CSS\u3092\u4f5c\u6210\u3057\u3066\u3001\u30c7\u30b6\u30a4\u30f3\u3092\u307e\u3068\u3082\u306b<\/h3>\n

\u3042\u3068\u306fSCSS\u3067\u3000\u30c7\u30b6\u30a4\u30f3\u8abf\u6574\u3092\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n

[bash]
\n$ npm install –save node-sass
\n[\/bash]<\/p>\n

[bash]
\n$ nano sass\/main.scss
\n[\/bash]<\/p>\n

[bash]
\ndiv.list_products {
\n div.product_id {
\n float: left;
\n width: 90px;
\n }
\n div.product_name {
\n float: left;
\n width: 250px;
\n }
\n div.price {
\n float: left;
\n width: 120px;
\n text-align: right;
\n }
\n div.edit {
\n float: left;
\n width: 100px;
\n }
\n div.clearfix {
\n clear: both;
\n }
\n}
\n[\/bash]<\/p>\n

App.js\u3092\u7de8\u96c6\u3057\u3066\u3001\u4f5c\u6210\u3057\u305fscss\u3092\u8aad\u307f\u8fbc\u3080<\/h4>\n

[bash]
\n$ nano App.js
\n[bash]<\/p>\n

[bash]
\nimport “.\/sass\/main.scss”;<\/p>\n

function App() {<\/p>\n

[\/bash]<\/p>\n

\u30dc\u30bf\u30f3\u3092\u8ffd\u52a0\u3057\u3066\u3001\u30c7\u30fc\u30bf\u3092\u7de8\u96c6\u3067\u304d\u308b\u3088\u3046\u306b<\/h4>\n

[bash]
\n$ nano components\/product.js
\n[\/bash]<\/p>\n

[bash]
\nimport React from “react”;
\nimport Menu from “.\/menu”;<\/p>\n

class Product extends React.Component {
\n componentDidMount() {
\n this.props.onInit();
\n }
\n render(){
\n let {list_body, has_more, onClickEdit} = this.props;<\/p>\n

let lstBody = [];<\/p>\n

for (let i = 0 ; i < list_body.length ; i++){\n let bd = list_body[i];\n lstBody.push(\n \n\n

\n
{bd.id}<\/div>\n
{bd.product_name}<\/div>\n
{bd.price}<\/div>\n