YouTube UI add reply to comment

[Benjamin-Loison]

Requested on Discord.

After minimize_curl.py (note that the commentText is part of the response, STATUS_SUCCEEDED is more general):

curl https://www.youtube.com/youtubei/v1/comment/create_comment_reply -X POST -H 'Content-Type: application/json' -H 'Origin: https://www.youtube.com' -H 'Authorization: SAPISIDHASH CENSORED' -H 'Cookie: __Secure-1PSIDTS=sidts-CENSORED; __Secure-1PSID=CENSORED; __Secure-1PAPISID=CENSORED' --data-raw '{"context": {"client": {"clientName": "WEB", "clientVersion": "2.20240306.07.00-canary_experiment_2.20240304.00.00"}}, "createReplyParams": "EgszNzNUa3N5bm93SSIaVWd5SUhMLWJIajNmZ25YZHVPZDRBYUFCQWcqAggAUAfoAQA%3D", "commentText": "my answer"}'

https://www.youtube.com/watch?v=373TksynowI&lc=UgyIHL-bHj3fgnXduOd4AaABAg

https://yt.lemnoslife.com/noKey/commentThreads?part=replies&id=UgyIHL-bHj3fgnXduOd4AaABAg

import requests
import json

url = 'https://yt.lemnoslife.com/noKey/commentThreads'

params = {
    'part': 'replies',
    'id': 'UgyIHL-bHj3fgnXduOd4AaABAg'
}

data = requests.get(url, params = params).json()
print(json.dumps(data, indent = 4))

echo 'EgszNzNUa3N5bm93SSIaVWd5SUhMLWJIajNmZ25YZHVPZDRBYUFCQWcqAggAUAfoAQA=' | base64 -d

373TksynowI"�UgyIHL-bHj3fgnXduOd4AaABAgP�

echo 'EgszNzNUa3N5bm93SSIaVWd5SUhMLWJIajNmZ25YZHVPZDRBYUFCQWcqAggAUAfoAQA=' | base64 -d | protoc --decode_raw

2: "373TksynowI"
4: "UgyIHL-bHj3fgnXduOd4AaABAg"
5 {
  1: 0
}
10: 7
29: 0

test.proto:

syntax = "proto3";

message message0
{
  string videoId = 2;
  string commentId = 4;
  message1 message10 = 5;
  uint32 uint320 = 10;
  uint32 uint321 = 29;
}

message message1
{
  uint32 uint322 = 1;
}

test.data:

videoId: "373TksynowI"
commentId: "UgyIHL-bHj3fgnXduOd4AaABAg"
message10: {
    uint322: 0
}
uint320: 7
uint321: 0

protoc --encode=message0 test.proto < test.data

373TksynowI"�UgyIHL-bHj3fgnXduOd4AaABAg*P

protoc --encode=message0 test.proto < test.data | base64

EgszNzNUa3N5bm93SSIaVWd5SUhMLWJIajNmZ25YZHVPZDRBYUFCQWcqAFAH

Not identical for the moment...

For an unknown reason when provide above proto and following JSON to https://www.protobufpal.com we get the same YouTube UI protobuf (i.e. EgszNzNUa3N5bm93SSIaVWd5SUhMLWJIajNmZ25YZHVPZDRBYUFCQWcqAggAUAfoAQA=):

{
  "videoId": "373TksynowI",
  "commentId": "UgyIHL-bHj3fgnXduOd4AaABAg",
  "message10": {
    "uint322": 0
  },
  "uint320": 7,
  "uint321": 0
}

https://yt.lemnoslife.com/noKey/comments?part=snippet&id=UgyIHL-bHj3fgnXduOd4AaABAg.A0h8yXKhWTrA0h9U2nnZ09

https://yt.lemnoslife.com/noKey/commentThreads?part=snippet&id=UgyIHL-bHj3fgnXduOd4AaABAg&fields=items/snippet/totalReplyCount

https://yt.lemnoslife.com/noKey/comments?part=snippet&parentId=UgyIHL-bHj3fgnXduOd4AaABAg&maxResults=100

import requests
import json

url = 'https://yt.lemnoslife.com/noKey/comments'

params = {
    'part': 'snippet',
    'parentId': 'UgyIHL-bHj3fgnXduOd4AaABAg',
    'maxResults': 100
}
pageToken = ''

while True:
    params['pageToken'] = pageToken
    response = requests.get(url, params = params).json()
    items = response['items']
    if not 'nextPageToken' in response:
        break
    pageToken = response['nextPageToken']

print(items[-1]['snippet']['textOriginal'])

Related to #91 and #190.

[Benjamin-Loison]

syntax = "proto3";

message message0
{
  string videoId = 2;
  string commentId = 4;
}

{
  "videoId": "373TksynowI",
  "commentId": "UgyIHL-bHj3fgnXduOd4AaABAg"
}

is enough and minimized (if remove videoId, then get Request contains an invalid argument.).

[Benjamin-Loison]

Waiting original requester answer on Discord.

[Benjamin-Loison]

import requests
import json
import time

url = 'https://yt.lemnoslife.com/noKey/comments'

params = {
    'part': 'snippet',
    'parentId': 'UgyIHL-bHj3fgnXduOd4AaABAg',
    'maxResults': 100
}
pageToken = ''
initialLastComment = None

while True:
    while True:
        params['pageToken'] = pageToken
        response = requests.get(url, params = params).json()
        items = response['items']
        if not 'nextPageToken' in response:
            break
        pageToken = response['nextPageToken']
    
    lastComment = items[-1]['snippet']['textOriginal']
    print(lastComment)
    if initialLastComment is None:
        initialLastComment = lastComment
    elif initialLastComment != lastComment:
        break
    time.sleep(1)

[Benjamin-Loison]

node test.js

test.js:

const protobuf = require("protobufjs");
const fs = require("fs");
const crypto = require("node:crypto")
const axios = require("axios")

const root = protobuf.loadSync("messages.proto");

const message0 = root.lookupType("message0")

const outerMessage = message0.create({
  videoId: "373TksynowI",
  commentId: "UgyIHL-bHj3fgnXduOd4AaABAg",
})

const createReplyParams = message0.encode(outerMessage).finish().toString("base64")

const authorization = "SAPISIDHASH CENSORED"

const commentText = "nodejs 4"

const headers = {
  'authorization': authorization,
  'content-type': 'application/json',
  'cookie': '__Secure-1PAPISID=CENSORED; __Secure-1PSID=CENSORED; __Secure-1PSIDTS=sidts-CENSORED',
  'origin': 'https://www.youtube.com',
  'X-Goog-AuthUser': '1',
}

const body = {
  'commentText': commentText,
  'createReplyParams': createReplyParams,
  'context': {
    'client': {
      'clientName': "WEB",
      'clientVersion': "2.20240308.00.00"
    }
  }
}

axios.post("https://www.youtube.com/youtubei/v1/comment/create_comment_reply", body, {headers})
  .then(response => {
    console.log('response', JSON.stringify(response.data, null, 4))
  })
  .catch(error => {
    console.log('error', error)
  })

messages.proto:

syntax = "proto3";

message message0
{
  string videoId = 2;
  string commentId = 4;
}