const fetch = require("node-fetch");
const fs = require("fs");

let VisionApi = function (pathImage) {
  let imageBytes = fs.readFileSync(pathImage).toString("base64");
  let body = {
    requests: [
      {
        image: {
          content: imageBytes,
        },
        features: [
          // {
          //   type: "TEXT_DETECTION",
          // },
          // {
          //   type: "FACE_DETECTION",
          // },
          // {
          //   type: "LANDMARK_DETECTION",
          // },
          // {
          //   type: "LOGO_DETECTION",
          // },
          // {
          //   type: "LABEL_DETECTION",
          // },
          {
            type: "DOCUMENT_TEXT_DETECTION",
          },
          // {
          //   type: "SAFE_SEARCH_DETECTION",
          // },
          // {
          //   type: "IMAGE_PROPERTIES",
          // },
          // {
          //   type: "CROP_HINTS",
          // },
          // {
          //   type: "WEB_DETECTION",
          // },
          // {
          //   type: "PRODUCT_SEARCH",
          // },
          // {
          //   type: "OBJECT_LOCALIZATION",
          // },
        ],
      },
    ],
  };
  let headers = {
    "x-origin": "https://explorer.apis.google.com",
    "content-type": "application/json",
    "Content-Type": "text/plain",
  };
  return new Promise((resolve, reject) => {
    fetch(
      "https://content-vision.googleapis.com/v1/images:annotate?alt=json&key=AIzaSyAa8yy0GdcGPHdtD083HiGGx_S0vMPScDM",
      {
        method: "post",
        body: JSON.stringify(body),
        headers: headers,
      }
    )
      .then((res) => res.json())
      .then((json) => {
        resolve(json);
      });
  });
};

VisionApi("./image/test.jpg").then((result) => {
  console.log(result.responses[0].fullTextAnnotation.text);
});