如果您想使用GraphQL来获取数据，则必须创建一个sourceNode。有关创建源插件的文档可以为您提供帮助。
请按照以下步骤操作，以使用randomuserGatsby项目中的GraphQL 查询数据。
在您的根项目文件夹中，将此代码添加到gatsby-node.js：
const axios = require('axios');
const crypto = require('crypto');
exports.sourceNodes = async ({ boundActionCreators }) => {
const { createNode } = boundActionCreators;
// fetch raw data from the randomuser api
const fetchRandomUser = () => axios.get(`https://randomuser.me/api/?results=500`);
// await for results
const res = await fetchRandomUser();
// map into these results and create nodes
res.data.results.map((user, i) => {
// Create your node object
const userNode = {
// required fields
id: `${i}`,
parent: `__SOURCE__`,
internal: {
type: `RandomUser`, // name of the graphQL query --> allRandomUser {}
// contentDigest will be added just after
// but it is required
},
children: [],
// Other fields that you want to query with graphQl
gender: user.gender,
name: {
title: user.name.title,
first: user.name.first,
last: user.name.last,
},
picture: {
large: user.picture.large,
medium: user.picture.medium,
thumbnail: user.picture.thumbnail,
}
// etc...
}
// Get content digest of node. (required field)
const contentDigest = crypto
.createHash(`md5`)
.update(JSON.stringify(userNode))
.digest(`hex`);
// add it to userNode
userNode.internal.contentDigest = contentDigest;
// Create node with the gatsby createNode() API
createNode(userNode);
});
return;
}
我曾经axios获取数据，所以您需要安装它：npm install --save axios
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