使用pinata将文件引脚到IPFS

Question

我正在使用皮纳塔，并试图将一些文件钉在ipfs上。这些文件来自用户输入，而不是从fs读取。具有以下代码：

export const deployFile = async (
  file: Express.Multer.File,
  httpService: HttpService,
): Promise => {
  const formData = new FormData();

  formData.append('file', Readable.from(file.buffer));

  try {
    const observable = httpService
      .post(process.env.PINATA_BASE_URL + '/pinning/pinFileToIPFS', formData, {
        headers: {
          'Content-Type': `multipart/form-data; boundary=${formData.getBoundary()}`,
          pinata_api_key: process.env.PINATA_API_KEY,
          pinata_secret_api_key: process.env.PINATA_API_SECRET_KEY,
        },
      })
      .pipe(map((response) => response.data));

    const response = await lastValueFrom(observable);

    return response.IpfsHash;
  } catch (error) {
    logger.error(`Error deploying image reason: ${error.response.data.error}`);
  }

总是命中错误Invalid request format.。如果使用以下方法从fs中读取文件，情况将如何：

const formData = new FormData();

formData.append('file', createReadStream(join(process.cwd(), '/images/1.jpeg')));

一切正常工作，文件被成功地固定在Pinata上。所以我想：Readable.from(file.buffer)和createReadStream(join(process.cwd(), '/images/1.jpeg'))不同，知道如何将用户文件直接部署到ipfs，而不是从FS读取它们吗？

Answer 1

如果您不想使用Pinata，那么从node.js方面来说这是一种简单的方法

async function storeImages(imagesDirPath) {
  const fullImagesPath = path.resolve(imagesDirPath);
  const files = fs.readdirSync(fullImagesPath);
  let responses = [];
  console.log("Uploading to Pinata !!!");
  console.log("paths ", fs.createReadStream(fullImagesPath + "/" + files[0]));
  for (fileIndex in files) {
    const readableStreamForFile = fs.createReadStream(
      `${fullImagesPath}/${files[fileIndex]}`
    );
    try {
      const response = await pinata.pinFileToIPFS(readableStreamForFile);
      responses.push(response);
    } catch (error) {
      console.log(error);
    }
  }
  return { responses, files };
}
async function storeTokeUriMetadata(metadata) {
  try {
    const response = await pinata.pinJSONToIPFS(metadata);
    return response;
  } catch (error) {
    console.log(error);
  }
  return null;
}

祝好运

Answer 2

下面是一个示例如何使用

const { Readable } = require("stream");
const FormData = require("form-data");
const axios = require("axios");

(async () => {
  try {
    const base64 = "BASE64 FILE STRING;
    const imgBuffer = Buffer.from(base64, "base64");

    const stream = Readable.from(imgBuffer);
    const data = new FormData();
    data.append('file', stream, {
      filepath: 'FILENAME.png'
    })

    const res = await axios.post("https://api.pinata.cloud/pinning/pinFileToIPFS", data, {
      maxBodyLength: "Infinity",
      headers: {
          'Content-Type': `multipart/form-data; boundary=${data._boundary}`,
          pinata_api_key: pinataApiKey,
          pinata_secret_api_key: pinataSecretApiKey
      }
    });

    console.log(res.data);
  } catch (error) {
    console.log(error);
  }
})();