What is to enter when asked for "'Enter the code from that page here: '" about slides-api HOT 7 CLOSED

hey when authentication complted then its redirect to your redirect url !!
just check the parms of url you will find the code!!
like http://localhost:53951/?
code=4/0AY0e-g6VHLYeYHLkT4Lj-gJ_QbTT8QdBnWdSTHNRAUqsgPgWb6nhbw
&scope=https://www.googleapis.com/auth/classroom.courses.readonly

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Enter the code given from the linked website.

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Sorry, but I could not understand by linked website. Can you please elaborate?

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Please provide more steps in what went wrong.

No description provided.

Following the steps of running the codelab should give the code you're looking for.

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It asks to enter code as per below lines.

rl.question('Enter the code from that page here: ', (code) => {
rl.close();

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Finally I used OAuth 2.0 playground to get authorization code and generated token manually using same.

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I put the same code from the url but it still gives me 400

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