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I'm trying to use the REST API with OAuth2 in PHP. The problem is that I followed this tutorial : http://developer.force.com/cookbook/recipe/interact-with-the-forcecom-rest-api-from-php And when I try to run my this code I have this error :

Client error: `POST https://login.salesforce.com/services/oauth2/token` resulted in a `400 Bad Request` 

response: {"error":"invalid_grant","error_description":"expired authorization code"}

I suppose that I need to configure something on my Salesforces Connected App but after around 3h of googling I can't find where is my problem.

Do you have an idea?

thanks

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    Did you call /services/oauth2/authorize first? You need get your authorization token first, then call back to get your access token. Make sure you're getting a authorization token back.
    – sfdcfox
    Feb 26 '18 at 16:49
  • Actually I'm using Laravel and github.com/omniphx/forrest. The first call is to /services/oauth2/authorize (where I log in) and my second call is to /services/oauth2/token and it's at this step that I have this error message.
    – Johann Carfantan
    Feb 26 '18 at 16:54
  • @sfdcfox I still have this message after a new day of research
    – Johann Carfantan
    Feb 27 '18 at 14:21
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I resolved my problem, I already used my authorization token previously in my code.

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  • could you please explain more your answer? I am having same issue, once you authorize how cna you get the auth token?
    – manza
    Jan 31 '20 at 3:17

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