Getting a "Error: 403, Permission Denied" with Google Vision API

[mkapfer]

I am trying to test the google vision api, I watched the postman video on YouTube of Arlemi and crew doing the exact API. I Forked the collection they recommended to my own as suggested.
I followed those steps to a degree as his was, I believe, pulling image from a URL(twitter) and my use case, is trying to pull from google storage buckets with gs source path and URi information.

I have a service account tied to the project where the cloud storage buckets are created. I have permissions set in IAM, API service account permission settings, & in the actual cloud storage bucket, i set all permissions to my actual account and to the service account in question.

I downloaded the JSON key from the service account to my local machine, set the GOOGLE_APPLICATION_CREDENTIALS to point to said downloaded JSON file, set and confirmed in PowerShell.

I set up Postman the way in the video with a secret api key setting in the Environment in Postman. I believe it works as without it, i get error along the lines of “Needs an API key to access” or something like that, when I put in the key, i no longer get that particular error instead get the 403 permission denied.

I am new to Postman and sadly new to doing APIs. I set my workspace to public. I have tried to research this permission denied error for a few days. Some articles say set permissions to Storage Object viewer and creator(i currently have that set). Some articles say No Permissions needed since API key is in action.

I have attempted to do OAuth 2.0 instead but sadly couldn’t figure out what was what so I went back to API key since I saw it working in a Video on the same API.

• Additional Data:

Blockquote{
“requests”: [
{
“inputConfig”: {
“gcsSource”: {
“uri”: “gs://{Gs-Bucket-Path}/{Folder Path & Exact File Path.pdf}”
},
“mimeType”: “application/pdf”

  },
  "outputConfig": {
    "gcsDestination": {
      "uri": "{gs:// output folder path}"
    },
    "batchSize": 1
  },
  "features": [
    {
      "type": "TEXT_DETECTION"
      
    }
    
  ]
  
}

]

}
{
“error”: {
“code”: 403,
“message”: “Error opening file: gs:// /{Gs-Bucket-Path}/{Folder Path & Exact File Path.pdf}”,
“status”: “PERMISSION_DENIED”
}
}

Blockquote

• Platform Details: I’m using Postman desktop app v11.17.1. Windows 11.

I’m looking for help to learn because I feel like a API shouldn’t be this challenging.

[mkapfer]

ANSWER: I solved the error, I had the wrong information in the postman Oauth 2.0 set up, put correct information in. No error anymore