[Twitch] Getting 404 for a twitch clip

[dirkf]

Originally posted by @dement6d in #30942 (comment)

---

Getting a similar issue for a twitch clip

I'm using the latest bin release of youtube-dl for linux

I'm trying to download a twitch clip using youtube-dl through a node.js app

console.log("Executing: " + `./youtube-dl ${clipLink} -o ${clipsFolder}/${clipTitle}.mp4`)
execSync(`./youtube-dl ${clipLink} -o ${clipsFolder}/clip${index}.mp4`);

the command im executing there works through the terminal but when done through the node app i get this error:

Executing: ./youtube-dl https://production.assets.clips.twitchcdn.net/AT-cm%7CKvyqkeREW5ETF3Sf_KheYA.mp4?sig=4d112865666fab9ee3b556eac64783920f5372b6&token=%7B%22authorization%22%3A%7B%22forbidden%22%3Afalse%2C%22reason%22%3A%22%22%7D%2C%22clip_uri%22%3A%22https%3A%2F%2Fproduction.assets.clips.twitchcdn.net%2FAT-cm%257CKvyqkeREW5ETF3Sf_KheYA.mp4%22%2C%22device_id%22%3Anull%2C%22expires%22%3A1652539411%2C%22user_id%22%3A%22%22%2C%22version%22%3A2%7D -o clips/Dono wants xQc to gamble his $105 donation.mp4
/bin/sh: line 1: -o: command not found
WARNING: Could not send HEAD request to https://production.assets.clips.twitchcdn.net/AT-cm%7CKvyqkeREW5ETF3Sf_KheYA.mp4?sig=4d112865666fab9ee3b556eac64783920f5372b6: HTTP Error 404: 
ERROR: Unable to download webpage: HTTP Error 404:  (caused by <HTTPError 404: ''>); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
node:internal/errors:841
  const err = new Error(message);
              ^

Error: Command failed: ./youtube-dl https://production.assets.clips.twitchcdn.net/AT-cm%7CKvyqkeREW5ETF3Sf_KheYA.mp4?sig=4d112865666fab9ee3b556eac64783920f5372b6&token=%7B%22authorization%22%3A%7B%22forbidden%22%3Afalse%2C%22reason%22%3A%22%22%7D%2C%22clip_uri%22%3A%22https%3A%2F%2Fproduction.assets.clips.twitchcdn.net%2FAT-cm%257CKvyqkeREW5ETF3Sf_KheYA.mp4%22%2C%22device_id%22%3Anull%2C%22expires%22%3A1652539411%2C%22user_id%22%3A%22%22%2C%22version%22%3A2%7D -o clips/clip0.mp4
/bin/sh: line 1: -o: command not found
WARNING: Could not send HEAD request to https://production.assets.clips.twitchcdn.net/AT-cm%7CKvyqkeREW5ETF3Sf_KheYA.mp4?sig=4d112865666fab9ee3b556eac64783920f5372b6: HTTP Error 404: 
ERROR: Unable to download webpage: HTTP Error 404:  (caused by <HTTPError 404: ''>); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

    at checkExecSyncError (node:child_process:828:11)
    at execSync (node:child_process:899:15)
    at /home/demented/repos/twitch-clips-bot/dl-clip.js:34:9
    at Array.forEach (<anonymous>)
    at /home/demented/repos/twitch-clips-bot/dl-clip.js:27:11 {
  status: 127,
  signal: null,
  output: [
    null,
    Buffer(118) [Uint8Array] [
       91, 103, 101, 110, 101, 114, 105,  99,  93,  32,  65,  84,
       45,  99, 109, 124,  75, 118, 121, 113, 107, 101,  82,  69,
       87,  53,  69,  84,  70,  51,  83, 102,  95,  75, 104, 101,
       89,  65,  58,  32,  82, 101, 113, 117, 101, 115, 116, 105,
      110, 103,  32, 104, 101,  97, 100, 101, 114,  10,  91, 103,
      101, 110, 101, 114, 105,  99,  93,  32,  65,  84,  45,  99,
      109, 124,  75, 118, 121, 113, 107, 101,  82,  69,  87,  53,
       69,  84,  70,  51,  83, 102,  95,  75, 104, 101,  89,  65,
       58,  32,  68, 111,
      ... 18 more items
    ],
    Buffer(520) [Uint8Array] [
       47,  98, 105, 110,  47, 115, 104,  58,  32, 108, 105, 110,
      101,  32,  49,  58,  32,  45, 111,  58,  32,  99, 111, 109,
      109,  97, 110, 100,  32, 110, 111, 116,  32, 102, 111, 117,
      110, 100,  10,  87,  65,  82,  78,  73,  78,  71,  58,  32,
       67, 111, 117, 108, 100,  32, 110, 111, 116,  32, 115, 101,
      110, 100,  32,  72,  69,  65,  68,  32, 114, 101, 113, 117,
      101, 115, 116,  32, 116, 111,  32, 104, 116, 116, 112, 115,
       58,  47,  47, 112, 114, 111, 100, 117,  99, 116, 105, 111,
      110,  46,  97, 115,
      ... 420 more items
    ]
  ],
  pid: 34528,
  stdout: Buffer(118) [Uint8Array] [
     91, 103, 101, 110, 101, 114, 105,  99,  93,  32,  65,  84,
     45,  99, 109, 124,  75, 118, 121, 113, 107, 101,  82,  69,
     87,  53,  69,  84,  70,  51,  83, 102,  95,  75, 104, 101,
     89,  65,  58,  32,  82, 101, 113, 117, 101, 115, 116, 105,
    110, 103,  32, 104, 101,  97, 100, 101, 114,  10,  91, 103,
    101, 110, 101, 114, 105,  99,  93,  32,  65,  84,  45,  99,
    109, 124,  75, 118, 121, 113, 107, 101,  82,  69,  87,  53,
     69,  84,  70,  51,  83, 102,  95,  75, 104, 101,  89,  65,
     58,  32,  68, 111,
    ... 18 more items
  ],
  stderr: Buffer(520) [Uint8Array] [
     47,  98, 105, 110,  47, 115, 104,  58,  32, 108, 105, 110,
    101,  32,  49,  58,  32,  45, 111,  58,  32,  99, 111, 109,
    109,  97, 110, 100,  32, 110, 111, 116,  32, 102, 111, 117,
    110, 100,  10,  87,  65,  82,  78,  73,  78,  71,  58,  32,
     67, 111, 117, 108, 100,  32, 110, 111, 116,  32, 115, 101,
    110, 100,  32,  72,  69,  65,  68,  32, 114, 101, 113, 117,
    101, 115, 116,  32, 116, 111,  32, 104, 116, 116, 112, 115,
     58,  47,  47, 112, 114, 111, 100, 117,  99, 116, 105, 111,
    110,  46,  97, 115,
    ... 420 more items
  ]
}

[dirkf]

1. Quote, or otherwise distinguish, the URL and the argument of the -o option. The documentation of the child_process.execSync() method is silent about how the command is parsed but says it is "generally identical to child_process.exec()" and that method separates command arguments at spaces. You probably want child_process.spawnSync().

2. yt-dl's Twitch extractor only knows about certain pages in the twitch.tv domain. A URL like https://production.assets.clips.twitchcdn.net/... might possibly be handled by yt-dl's generic extractor, but all indications are that you're doing whatever you want to do wrong.

[dirkf]

@dement6d ?

[mk-pmb]

In case anyone might be wondering, line 2 of the pasted log file, the /bin/sh: line 1: -o: command not found means that the shell command was split at the first &, which commands sh to

1. start a background task with the command ./youtube-dl https://production.assets.clips.twitchcdn.net/AT-[…]0f5372b6
2. start an interactive task with the command token=[…]%7D -o clips/Dono wants xQc to gamble his $105 donation.mp4 which means to run the -o program with an environment variable token set to some value.
3. Since there was no program named -o installed, sh complained and the interactive task finished (failed) almost immediately.
4. Meanwhile in the background yt-dl tried to download the truncated URL but failed because there was no token in that URL.

[dirkf]

Just so, except it's sh, not bash; hence point 1 above.

[mk-pmb]

Oh right, of course. I edited my post to fix it.