gatsby - 通过 gatsby-node 将图像导入 GraphQL 不起作用：缺少 childImageSharp

问题描述

我正在尝试使用Gatsby Node和Sharp 转换器管道将 JSON 文件中的图像加载到 GraphQL 中。创建了内容节点，但缺少childImageSharp和gatsbyImageData属性，这让我相信我的设置有问题。

我在 Github 上创建了一个最小示例以使问题可重现：https ://github.com/stekhn/gatsby-image-sourcing

项目结构

src
├── data
│   └── projects.json
├── images
│   └── projects
│       ├── adam-vradenburg-sWAAhaoVuko-unsplash.jpg
│       ├── radek-homola-RfTD9NoLMEE-unsplash.jpg
│       ├── steven-kamenar-MMJx78V7xS8-unsplash.jpg
│       ├── will-tarpey-82pi_nJbE5M-unsplash.jpg
│       └── wolfgang-hasselmann-ZM4IxIcF9AU-unsplash.jpg
└── pages
    ├── 404.js
    └── index.js

包.json

{
  "name": "gatsby-image-sourcing",
  "dependencies": {
    "gatsby": "^3.3.1",
    "gatsby-plugin-image": "^1.3.1",
    "gatsby-plugin-sharp": "^3.3.1",
    "gatsby-source-filesystem": "^3.3.0",
    "gatsby-transformer-sharp": "^3.3.0",
    "react": "^17.0.1",
    "react-dom": "^17.0.1"
  }
}

盖茨比-config.js

module.exports = {
  siteMetadata: {
    title: "Gatsby Image Sourcing",
  },
  plugins: [
    `gatsby-plugin-image`,
    `gatsby-plugin-sharp`,
    `gatsby-transformer-sharp`,
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        name: `images`,
        path: `${__dirname}/src/images/projects/`,
      },
    },
  ],
};

盖茨比节点.js：

const path = require("path");
const projects = require("./src/data/projects.json");

// Reference: https://stackoverflow.com/a/56012718
exports.sourceNodes = ({ actions, createNodeId, createContentDigest }) => {
  projects.forEach((project) => {
    const { title, year, tags, image } = project;
    const { name, ext } = path.parse(image);

    const absolutePath = path.resolve(
      __dirname,
      "src/images/projects",
      image
    );

    const imageData = {
      name,
      ext,
      absolutePath,
      extension: ext.substring(1),
    };

    console.log(imageData);
  
    const imageNode = {
      ...imageData,
      id: createNodeId(`project-card-image-${name}`),
      internal: {
        type: "projectCardsImage",
        contentDigest: createContentDigest(imageData),
      },
    };

    actions.createNode(imageNode);

    const node = {
      title,
      year,
      tags,
      image: imageNode,
      id: createNodeId(`project-card-${title}`),
      internal: {
        type: "projectCards",
        contentDigest: createContentDigest(project),
      },
    };

    actions.createNode(node);
  });
};

项目.json

[
  {
    "title": "Project 1",
    "year": "2021",
    "tags": ["foo", "bar"],
    "image": "adam-vradenburg-sWAAhaoVuko-unsplash.jpg"
  }
]

图像路径看起来不错，并且 gatsby-node.js 运行没有问题。然而，当我在 GraphiQL 资源管理器中检查projectCardsandprojectCardsImage时，Gatsby Transformer Sharp 似乎从未运行过。通常，我希望看到该属性childImageSharp是image.

我很清楚还有其他加载和使用图像的方法，它们可以正常工作。但是现在，我有点赞同使用 Gatsby Node 来填充 GraphQL 数据库的确切类型的对象，我需要在我的组件中。

参考

任何帮助深表感谢。

标签： gatsbygatsby-image

gatsby - 通过 gatsby-node 将图像导入 GraphQL 不起作用：缺少 childImageSharp

问题描述

解决方案

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