Passport: {"error":"invalid_client","message":"Client authentication failed"}

[TimOgilvy]

When passing form-data in postman, this works correctly:

json { "client_id": 3, "client_token": "gOX9axBrBuFVEVUPGSzjKIUqH77Ta64TuVIbHrky", "grant_type": "password", "password": "password1", "scope":"*", "username":"[email protected]" }

as soon as I switch to passing "application/json" and pass exactly the same values as a json object in the body, I get this error.

json {"error":"invalid_client","message":"Client authentication failed"}

Is the client id getting converted to a string somewhere in this process, and then failing to match? Definitely a bug with passport tho. changing the grant_type to "noodles" produces a different error:

json {"error":"unsupported_grant_type","message":"The authorization grant type is not supported by the authorization server.","hint":"Check the `grant_type` parameter"}

I'm putting my money on this being a type comparison issue in passport somewhere, where either the client_id or the client_token is incorrectly cast or compared.

[TimOgilvy]

the only other vague possibility seems to be the @ symbol in the email maybe not being decoded correctly

[aascc]

@TimOgilvy There may be quite scenarios for the above issue.I will explain it one by one. You always need to pass application/json header .

1. Make sure the client id and secret is in the oauth_clients and you passed those parameter correctly.In order to generate those client id and secret use _php artisan passport:install_.
2. Make sure to use password grant client . To identify that goto oauth_clients table and check if password_client is set to 1 and personal_access_client is set to 0 and revoked to 0 .
   I hope this will solve the issue . Thank you

[venu2207]

{"error":"unsupported_grant_type","message":"The authorization grant type is not supported by the authorization server.","hint":"Check the grant_type parameter"}

[ihmLouie]

yes， password_client is set to 1 and personal_access_client is set to 0 and revoked to 0

[driesvints]

Closing this issue because it's already solved, old or not relevant anymore. Feel free to reply if you're still experiencing this issue.

[solarsoft0]

how did you solve this issue

[anususmi]

While try to login in laravel 5.7 passport

client_id:1
client_secret:vzdz0SEntm3xH6AMtKGBYbSc0vdxMaTXA
username:test.gmail.com
password:123456
grant_type:password
scope:*

{
"error": "invalid_credentials",
"message": "The user credentials were incorrect."
}

how to solve this issue

Thanks in advance..!!

[aascc]

@anususmi I think your username is wrong it should be [email protected] . And could you post your users database so that I may able to find the issue.

[cheran2017]

if you tried everything and still it's not working means try this solution!!
just give scope *.

$query = http_build_query([
    'client_id' => 1,
    'redirect_uri' => 'http://localhost:3000/callback',
    'response_type' => 'code',
    'scope' => '*'
]);

in my case this is the solution. I have checked

[onedirection5]

I try everything in this discussion. But still not work. Please help me. Because I'm stuck here almost a week.

[PouyaPour]

I have tried different ways, in the end I notice that my config cache is old and I use this code and my problem solved

php artisan config:clear

[RavaliBoga1699]

Facing the same issue since morning in Laravel 8... "invalid_grant" I tried all suggestions mentioned in a loop but no success. Do anyone faced similar issue in laravel 8.

Any suggestions how to fix that
grant_type = password
client_id = 4
client_secret = SZ280jSp6YOrHNj6fglegAzi2rv8oqXtbt7T4gZA
scope = *
username = [email protected]
password = admin

DB row
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
4 | NULL | Laravel Password Grant Client | SZ280jSp6YOrHNj6fglegAzi2rv8oqXtbt7T4gZA | users | http://localhost | 0 | 1 | 0 | 2020-12-09 18:11:49 | 2020-12-09 18:11:49

[PouyaPour]

Facing the same issue since morning in Laravel 8... "invalid_grant" I tried all suggestions mentioned in a loop but no success. Do anyone faced similar issue in laravel 8.

Any suggestions how to fix that
grant_type = password
client_id = 4
client_secret = SZ280jSp6YOrHNj6fglegAzi2rv8oqXtbt7T4gZA
scope = *
username = [email protected]
password = admin

DB row
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
4 | NULL | Laravel Password Grant Client | SZ280jSp6YOrHNj6fglegAzi2rv8oqXtbt7T4gZA | users | http://localhost | 0 | 1 | 0 | 2020-12-09 18:11:49 | 2020-12-09 18:11:49

First of all, please test this code
php artisan cache:clear
If your problem is not solved. I think the best way is to first check your token generation code in passport api, if your token was generated correctly. Next past client_id and client_secret in your login code to find out that where is the problem from