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verify4js

v2.1.2

Published

PDF файлын Notly системээр блокчэйн дээр баталгаажсан эсэхийг шалгах сан.

Downloads

88

Readme

Verify4js

PDF файлын Notly системээр блокчэйн дээр баталгаажсан эсэхийг шалгах сан.

Суулгах заавар

npm-ээс татаж авч суулгах эсвэл шууд эх кодыг хуулж авч ашиглаж болно.

npm install verify4js

Ашиглах заавар

import * as Verify from "verify4js";

Verify.verify(pdfArrayBuffer, nodeUrl)
.then(res => { // console.log(res); })
.catch(err => { console.error(err.message); })

Фронтэнд Жишээ:

<input type="file" name="file" onChange={handleFileChange} />

function handleFileChange(event) {
const selectedFile = event.target.files[0];
const fileType = ["application/pdf"];

if (selectedFile) {
  if (fileType.includes(selectedFile.type)) {
    const reader = new FileReader(); 
    reader.onload = (e) => { 
      const view = new Int8Array(e.target.result); 
      Verify.verify(view)
        .then((res) => {
          console.log(res);
        })
        .catch((err) => {
          console.error("test", err.message); 
        });
      setFile(e.target.result);
    };
    reader.readAsArrayBuffer(selectedFile);
  } else {
    setFile(null);
  }
}
}

Backend жишээ:

const { verify } = require('verify4js');
verify(pdfArrayBuffer)
.then(res => { // console.log(res); })
.catch(err => { console.error(err.message); })

Параметрүүд

  • pdfArrayBuffer нь pdf файлаа уншиж аваад ArrayBuffer төрөлд хөрвүүлсэн утга
  • nodeUrl нь блокчэйний node-ий хаяг. Утга зааж өгөхгүй бол TEO-ийн public node рүү заана

Гаралт

export interface VerifyResultInterface { 
  state: 'REVOKED' | 'EXPIRED' | 'ISSUED' | 'APPROVE_PENDING' | 'INVALID',
  metadata: MetaDataInterface, 
  cert: {}, 
  issuer: {isActive?: boolean}, 
  isTestnet: boolean, 
  isUniversity?: boolean 
}
state нь
  • ISSUED бол баталгаажсан файл.
  • REVOKED бол хүчингүй болгосон файл
  • EXPIRED бол хугацаа нь дууссан файл,
  • APPROVE_PENDING бол их сургуулийн диплом БЕГ баталгаажуулахыг хүлээж буй
  • INVALID бол баталгаажаагүй файл.
metadata нь

файлд нэмэлтээр бичсэн утгууд.

cert нь

блокчэйн дээр бичигдсэн мэдээлэл.

issuer нь

баталгаажуулагчийн мэдээлэл.

isTestnet нь

тест сүлжээнд баталжуулсан бол true байна.

isUniversity нь

их сургуулийн диплом үед true байна.