Javascript 创建资产时出现内容内容管理API错误422

我正在尝试使用Contentful内容管理API创建并发布一个图像作为资产，但到目前为止没有成功，我已经成功创建并发布了一个条目，我无法找出资产不起作用的原因。下面是我创建资产的代码。最终的目标是为一系列的图像/附件做这项工作，但我正试图在处理多个图像/附件之前，只使用一个图像/附件

  makeAsset = async (item) => {
    try {
      var MClient = createClient({
        accessToken: process.env.REACT_APP_CONTENTFUL_MANAGEMENT_ACCESS_TOKEN,
      });
      let space = await MClient.getSpace(
        process.env.REACT_APP_CONTENTFUL_API_SPACE
      );
      let environment = await space.getEnvironment(
        process.env.REACT_APP_CONTENTFUL_ENVIRONMENT
      );

      const asset = await environment.createAsset({
        fields: {
          title: {
            "en-US": item.imgNames[0],
          },
          file: {
            "en-US": {
              fileName: item.images[0].name,
              contentType: item.images[0].type,
              uploadFrom: item.imgUrls[0],
            },
          },
        },
      });

      const processedAsset = await asset.processForAllLocales();
      processedAsset.publish();

控制台中的错误是：

ValidationFailed: {
  "status": 422,
  "statusText": "",
  "message": "Validation error",
  "details": {
    "errors": [
      {
        "name": "type",
        "value": "data:image/png;base64,iVBORw0KGg(The rest of the image URL from above)
        "type": "Object",
            "details": "The type of \"value\" is incorrect, expected type: Object",
            "path": [
            "fields",
            "file",
            "en-US",
            "uploadFrom"
            ]
         }
       ]
     },
"request": {
    "url": "assets",
    "headers": {
      "Accept": "application/json, text/plain, */*",
      "Content-Type": "application/vnd.contentful.management.v1+json",
      "X-Contentful-User-Agent": "sdk contentful-management.js/5.26.1; platform browser; os Windows;",
      "Authorization": "Bearer ...7ijJE"
    },
    "method": "post",
    "payloadData": "{\"fields\":{\"title\":{\"en-US\":\"scuba_mask\"},\"file\":{\"en-US\":{\"fileName\":\"scuba_mask.png\",\"contentType\":\"image/png\",\"uploadFrom\":\"data:image/png;base64,iVBORw0KG(The rest of image URL)

---

我一直在尝试搜索其他示例，因为文档不完整，没有一个示例适合我。我尝试过的一个解决方案是使用fs.createReadStream（）函数，但该函数已从React中删除。

Heyooo，这里有内容丰富的开发人员关系 @stefan judis，我使用了示例中的代码，其中一个函数在较新版本中被弃用，因此我想我应该冒险更换一些东西，结果成功了。以下是修复我的问题的解决方案，供其他有此问题的人参考：

makeAsset = async (item) => {
try {
  //Contentful API Call
  var MClient = createClient({
    //Fetch access token from environment variables
    accessToken: process.env.REACT_APP_CONTENTFUL_MANAGEMENT_ACCESS_TOKEN,
  });
  //API call that requests the specified space
  let space = await MClient.getSpace(
    process.env.REACT_APP_CONTENTFUL_API_SPACE
  );
  let environment = await space.getEnvironment(
    process.env.REACT_APP_CONTENTFUL_ENVIRONMENT
  );

  const file = item.images[0];
  const contentType = file.type;
  const fileName = file.name;
  let asset = await environment.createAssetFromFiles({
    fields: {
      title: {
        "en-US": fileName,
      },
      file: {
        "en-US": {
          contentType,
          fileName,
          file,
        },
      },
    },
  });
  asset = await asset.processForAllLocales();
  asset.publish();
} catch(error) {
  console.log(error);
}
}