Connecting RapidAPI through SuiteScript in NetSuite experiencing authentication issues

Other Questions RapidAPI
1

I’m facing difficulty when trying to use RapidAPI in conjunction with SuiteScript on NetSuite. Even though I have verified that my API key works in Postman, I am still encountering errors in the NetSuite environment.

Here is the code I’m currently working with:

let headersConfig = [
    {
        name: "x-rapidapi-host",
        value: "api.example.com"
    },
    {
        name: "x-rapidapi-key", 
        value: "my-secret-key-here"
    }
];

let responseFromApi = https.request({
    method: https.Method.GET,
    url: "https://api.example.com/endpoint",
    headers: headersConfig
});

The issue returns this message:

Error 400: Invalid API key. For more details, visit https:docs.rapidapi.com/docs/keys.

I’ve confirmed the validity of my API key multiple times, yet it continues to fail in the NetSuite context. Has anyone managed to connect to RapidAPI through NetSuite successfully? Any ideas on how to resolve this authentication problem?

2

Had this exact problem a few months back - drove me crazy for hours. JackHero77’s right about the headers, but there’s another gotcha that got me. Check your API key for extra whitespace or special characters when you copy it from the RapidAPI dashboard. I was copying mine from a text editor with invisible Unicode characters at the end. Also double-check you’re using the right RapidAPI host URL - sometimes the host in their docs doesn’t match what goes in the x-rapidapi-host header. Log your actual request headers in NetSuite to see what’s being sent vs what Postman sends when it works.

3

Also check your NetSuite environment permissions for external API calls. Sometimes the HTTPS module gets blocked by governance limits or domain restrictions. Wrap your request in try-catch to catch any hidden error messages. Test with a different RapidAPI endpoint first to rule out endpoint-specific issues.

4

I ran into the same authentication issue with RapidAPI and NetSuite SuiteScript. NetSuite’s picky about header structure - you can’t use an array of objects with name/value pairs. You need plain key-value pairs instead. Here’s what worked for me: let responseFromApi = https.request({ method: https.Method.GET, url: “https://api.example.com/endpoint”, headers: { “x-rapidapi-host”: “api.example.com”, “x-rapidapi-key”: “my-secret-key-here” } }); This fixed my authentication errors completely. NetSuite’s https module wants headers as a direct object, not an array. That’s probably why your API key isn’t getting through to RapidAPI’s servers.