Postman Tutorial - OAUTH 2.0 Authorization using Gmail API

Learn how to use OAUTH2.0 Authorization for Gmail API requests.

Useful Google API URLs:

Details to Get New Access Token in Postman:

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[smathers]

I get error : The developer hasn’t given you access to this app. It’s currently being tested and it hasn’t been verified by Google. I followed the same step you did in setting up GMail API credentials. any idea why?
Great video by the way

[wahidsafi]

Thanks for sharing such a rich content bro, Just in case anyone not getting verified pop-up in postman and able to get in chrome, make sure you disable "SSL certificate verification" under postman settings.

[claudineievangelistanascim]

Very good class. 🙏 Thanks for sharing knowledge. I would like to add that it is necessary to unblock the web browser popup to send informations and call the postman. Sucess for you QASCRIPT

[surendrann]

Hi, When trying to connect to anther email it's not working., How to create an access token for different user

[coloradovermelho]

OMG... the auth autentication leave the developement so complicated... Thas should't be the idea for APIs

[indiacricketclub]

Hi sir, please upload video to OAuth2. 0 authorization using YouTube...

Hi!

This was great! It solved my problem!

Thanks!

[AnandN-by]

is it possible to generate token without browser authentication ?
only with clientId and clientSecret

[jakareyaporosh]

Thanks for the detailed video. My question is can I run this on any CI pipeline and how?

[yogeshjadhav]

You have really done a great job. Very nice explanation & good efforts are taken by you. Thanks a lot.

[tkakki]

how to use the API to send emails from POSTMAN?

[BitterHippo]

Slick tutorial, my dude. Thanks for making it.

[nileshzu]

I am getting below error message while postman authorization.

Authorization Error
Error 400: redirect_uri_mismatch

You can't sign in to this app because it doesn't comply with Google's OAuth 2.0 policy.

Can you please help with this.

[sarveshnaik]

make a video on sending a email with attachement using gmail api and postman tool

[archanasubramanyam]

Hi there,

Thank you for the video was helpful.

However, I am stuck at a point would need your help.

Error : {
"error": {
"code": 401,
"errors": [
{
"message": "Login Required.",
"domain": "global",
"reason": "required",
"location": "Authorization",
"locationType": "header"
}
],
"status": "UNAUTHENTICATED"
}
}


I click on Get New Access Token -> Select Account -> Advanced -> click on Go to pstmn.io (unsafe)-> Grant pstmn.io permission
View and modify but not delete your email -> Allow -> It says authentication with green tick and immediately throws error shown up.

One thing I want to keep you posted, In consent form I have enabled the Scope -> not sure if there is something missing there.

[marcusmors]

Thank you, good man. am very glad you shared this 😀,
now am struggling with turning the message body into readable text he he. good luck!

[hasibulmondal]

I am trying to acess an api through Oauth 2.0 to test it on Postman and there I need webhook url for incoming response from the api. Can you tell me how to get this Webhook uri?

[itssjwrld]

When i Authorize by selecting a account then it gives error 403 and it won't give this advance option i tried many times any suggestions please help.

[pm-nktp]

Can you explain how to use next page token ?

[raviboddupally]

How can we send a tweet in twitter using postman post API. Can you please explain it.