CodexBloom - Programming Q&A Platform

PowerShell 7.3 - guide Invoking REST API with Bearer Token Authentication and Handling JSON Response

πŸ‘€ Views: 34 πŸ’¬ Answers: 1 πŸ“… Created: 2025-06-12
powershell api rest http authentication PowerShell

I can't seem to get I'm working with an scenario while trying to invoke a REST API using PowerShell 7.3, specifically when it comes to authenticating with a Bearer token. I have generated a token using another API call, but when I attempt to use `Invoke-RestMethod`, I receive a 401 Unauthorized behavior. Here’s what I have so far: ```powershell $token = "YourBearerTokenHere" $headers = @{ Authorization = "Bearer $token" } $url = "https://api.example.com/data" $response = Invoke-RestMethod -Uri $url -Method Get -Headers $headers ``` The behavior message I receive is: ``` Invoke-RestMethod : The remote server returned an behavior: (401) Unauthorized. ``` I confirmed that the token is valid by manually testing it in a REST client like Postman, and it does work there. I've also double-checked the URL and headers, and everything seems to be correctly formatted. I've tried both `Invoke-WebRequest` and `Invoke-RestMethod`, but I encounter the same unauthorized behavior with both. I’ve also experimented with URL encoding and tried to add `-ContentType application/json`, but that hasn't resolved the scenario either. What could be causing the 401 behavior in PowerShell, and how can I properly handle the Bearer token authentication for this API call? Thanks for any help you can provide!