Upload videos to my Youtube channel without user authentication using YoutubeApi v3 and ouath2

Question

The goal of my task is to create a console script, which will insert recently uploaded videos on my own site to my own Youtube channel. I want to use server-to-server authentication but YoutubeApi does not support this way of authentication now.

So my question is: How could I upload video to youtube channel, using oauth2 authentication with console script without any help of a user? Is there any way to do this without using deprecated ClientLogin authentication protocol?

Answer 1

Yes this segment explains how to: https://developers.google.com/youtube/v3/guides/moving_to_oauth#standalone

Basically, you go through once and save the token from there.

If you even want to skip that one time as well, you can get a refresh token in OAuth2 Playground with respected scopes and plug it in directly in your code, with client secret and id. That way your script won't need a web browser.

Here's the video explaining this workflow step-by-step.

Answer 2

here is a script to upload a video via curl

# WARNING, this works only with GNU grep, if you run this on a mac replace grep with ggrep after 'brew install grep'
# Store our credentials in our home directory with a file called .<script name>
my_creds=.`basename $0`
client_id='YOURCLIENTID'
client_secret='YOURCLIENTSECRET' # really a secret
if [ -s $my_creds ]; then
  # if we already have a token stored, use it
  . $my_creds
  time_now=`date +%s`
else
  scope='https://www.googleapis.com/auth/youtube'

  # Form the request URL
  auth_url="https://accounts.google.com/o/oauth2/auth?client_id=$client_id&scope=$scope&response_type=code&redirect_uri=urn:ietf:wg:oauth:2.0:oob"

  echo "Please go to:"
  echo
  echo "$auth_url"
  echo
  echo "after accepting, enter the code you are given:"
  read auth_code

  # swap authorization code for access and refresh tokens
  auth_result=$(curl -s https://accounts.google.com/o/oauth2/token \
    -H "Content-Type: application/x-www-form-urlencoded" \
    -d code=$auth_code \
    -d client_id=$client_id \
    -d client_secret=$client_secret \
    -d redirect_uri=urn:ietf:wg:oauth:2.0:oob \
    -d grant_type=authorization_code)

  echo COMPLETE ANSWER WAS:
  echo $auth_result

  access_token=$(echo "$auth_result" | \
                 ggrep -Po '"access_token" *: *.*?[^\\]",' | \
                 awk -F'"' '{ print $4 }')
  refresh_token=$(echo "$auth_result" | \
                 ggrep -Po '"refresh_token" *: *.*?[^\\]",*' | \
                 awk -F'"' '{ print $4 }')
  expires_in=$(echo "$auth_result" | \
               ggrep -Po '"expires_in" *: *.*' | \
               awk -F' ' '{ print $3 }' | awk -F',' '{ print $1}')
  time_now=`date +%s`
  expires_at=$((time_now + expires_in - 60))
  echo "access_token=$access_token\nrefresh_token=$refresh_token\nexpires_at=$expires_at" > $my_creds
fi

# if our access token is expired, use the refresh token to get a new one
if [ $time_now -gt $expires_at ]; then
  refresh_result=$(curl -s https://accounts.google.com/o/oauth2/token \
   -H "Content-Type: application/x-www-form-urlencoded" \
   -d refresh_token=$refresh_token \
   -d client_id=$client_id \
   -d client_secret=$client_secret \
   -d grant_type=refresh_token)
  access_token=$(echo "$refresh_result" | \
                 ggrep -Po '"access_token" *: *.*?[^\\]",' | \
                 awk -F'"' '{ print $4 }')
  expires_in=$(echo "$refresh_result" | \
               ggrep -Po '"expires_in" *: *.*' | \
               awk -F' ' '{ print $3 }' | awk -F',' '{ print $1 }')
  time_now=`date +%s`
  expires_at=$(($time_now + $expires_in - 60))
  echo "access_token=$access_token\nrefresh_token=$refresh_token\nexpires_at=$expires_at" > $my_creds
fi


# finally this is the call to upload the video (but I haven't managed to set title and description, you might want to make another call for that)
curl https://www.googleapis.com/upload/youtube/v3/videos?part=snippet \
    -d part='snippet' \
    -d snippet.title='test of a title' \
    -d snippet.description='test of video description' \
    --data-binary "@./small.mp4" \
    -H "Content-Type: application/octet-stream" \
    -H "Authorization: Bearer $access_token"

to make this work you will need to

• go to https://console.developers.google.com/projectselector/apis/library and click 'credentials' and the 'create credentials' to get your client_id and client_secret make sure it is a 'oauth Client ID' for native application (select 'Other' as the type)
• enable 'YouTube Data API v3'

this script is based on this other question

Moreover there is this github project which address the problem with python...