upload.getCdnFileHashes

Get SHA256 hashes for verifying downloaded CDN files

Example

Javascript

const {Api, TelegramClient} = require('telegram');
const {StringSession} = require('telegram/sessions');

const session = new StringSession('');
const client = new TelegramClient(session, apiId, apiHash, {});

(async function run() {
    const result = await client.invoke(new Api.upload.getCdnFileHashes({
        fileToken: Buffer.from('some bytes here'),
        offset: 1930220,
        }));
    console.log(result); // prints the result
})();

TypeScript

import {Api, TelegramClient} from 'telegram';
import {StringSession} from 'telegram/sessions';

const session = new StringSession('');
const client = new TelegramClient(session, apiId, apiHash, {});

(async function run() {
    const result: Api.Vector<FileHash> = await client.invoke(new Api.upload.getCdnFileHashes({
        fileToken: Buffer.from('some bytes here'),
        offset: 1930220,
        }));
    console.log(result); // prints the result
})();

TL schema

---functions---
upload.getCdnFileHashes#4da54231 file_token:bytes offset:int = Vector<FileHash>;

Parameters

Name	Type	Description
file_token	bytes	File
offset	int	Offset from which to start getting hashes

Result

Vector[FileHash](https://core.telegram.org/type/FileHash)

Possible errors

Code	Type	Description
400	CDN_METHOD_INVALID	You can't call this method in a CDN DC
400	RSA_DECRYPT_FAILED	Internal RSA decryption failed

Can bots use this methd ?

yes

Related pages

Encrypted CDNs for Speed and Security