使用Oauth客户端凭据创建Gatsby源插件

Question

我正在尝试为API创建盖茨比源插件，该API要求通过客户端凭据身份验证服务对每个请求进行有效的访问令牌。

基于Gatsby源插件教程，我将如何首先保护auth令牌，然后再将其传递给我的API请求。

我在这里转圈，希望能对您有所帮助。

const fetch = require("node-fetch")
const queryString = require("query-string")
const axios = require("axios")
const oauth = require('axios-oauth-client')

exports.sourceNodes = (
  { actions, createNodeId, createContentDigest },
  configOptions
) => {
  const { createNode } = actions
  // Gatsby adds a configOption that's not needed for this plugin, delete it
  delete configOptions.plugins
  // Helper function that processes a photo to match Gatsby's node structure
  const processPhoto = photo => {
    const nodeId = createNodeId(`pixabay-photo-${photo.id}`)
    const nodeContent = JSON.stringify(photo)
    const nodeData = Object.assign({}, photo, {
      id: nodeId,
      parent: null,
      children: [],
      internal: {
        type: `PixabayPhoto`,
        content: nodeContent,
        contentDigest: createContentDigest(photo),
      },
    })
    return nodeData
  }


  const getClientCredentials = oauth.client(axios.create(), {
    url: "https://api.example.com/oauth2/token",
    grant_type: 'client_credentials',
    client_id: "9939492",
    client_secret: "XXXXXX",
    scope: "CMS",
  });

  const auth = getClientCredentials();

   const options = {
      headers: { 'Authorization': 'Bearer ' + auth.access_token }
    }

  // Convert the options object into a query string
  const apiOptions = queryString.stringify(configOptions)
  // Join apiOptions with the Pixabay API URL
  const apiUrl = `https://pixabay.com/api/?${apiOptions}`
  // Gatsby expects sourceNodes to return a promise
  return (
    // Fetch a response from the apiUrl
    fetch(apiUrl, options)
      // Parse the response as JSON
      .then(response => response.json())
      // Process the response data into a node
      .then(data => {
        // For each query result (or 'hit')
        data.hits.forEach(photo => {
          // Process the photo data to match the structure of a Gatsby node
          const nodeData = processPhoto(photo)
          // Use Gatsby's createNode helper to create a node from the node data
          createNode(nodeData)
        })
      })
  )
}