FastGPT/packages/service/common/file/image/utils.ts

import axios from 'axios';
import { addLog } from '../../system/log';
import { serverRequestBaseUrl } from '../../api/serverRequest';
import { getFileContentTypeFromHeader, guessBase64ImageType } from '../utils';

export const getImageBase64 = async (url: string) => {
  addLog.debug(`Load image to base64: ${url}`);

  try {
    const response = await axios.get(url, {
      baseURL: serverRequestBaseUrl,
      responseType: 'arraybuffer',
      proxy: false
    });

    const base64 = Buffer.from(response.data, 'binary').toString('base64');
    const imageType =
      getFileContentTypeFromHeader(response.headers['content-type']) ||
      guessBase64ImageType(base64);

    return `data:${imageType};base64,${base64}`;
  } catch (error) {
    addLog.debug(`Load image to base64 failed: ${url}`);
    console.log(error);
    return Promise.reject(error);
  }
};