Adding HTTP Headers with SuiteScript ServerResponse

TL;DR Opening

Use SuiteScript to efficiently add HTTP headers to server responses, enabling better communication in applications. Understanding how to manage headers helps developers enhance functionality while adhering to constraints in NetSuite.

What are HTTP Headers?

HTTP headers are key-value pairs sent between a client and server, providing essential information about the request or response. By manipulating HTTP headers, developers can influence how clients interact with their services.

How Does the addHeader Method Work?

The addHeader method within the SuiteScript http.ServerResponse object allows developers to add headers to an HTTP response. If a header is already set, this method appends an additional line for that header. Here's an example of its usage:

Example Code

serverResponse.addHeader({
    name: 'Accept-Language',
    value: 'en-us',
});

Supported Script Types

• Server Scripts: The addHeader function is primarily utilized in server-side scripting within NetSuite, aligning with the broader capabilities of the N/http module.

Parameters for addHeader

The method requires a JavaScript object as a parameter, with the following fields:

Governance

Using this method incurs no governance limits, making it a versatile option for header manipulation.

Common Errors and Handling

• SSS_INVALID_HEADER: Triggered when one or more headers provided are invalid. Validate both the header name and value before submission.
• SSS_MISSING_REQD_ARGUMENT: Occurs when a required argument (options.name or options.value) is missing. Ensure that these parameters are populated when invoking the method.

Related Topics

• http.ServerResponse
• N/http Module
• SuiteScript 2.x Modules

Key Takeaways

• The addHeader method enhances response capabilities by allowing header addition in server scripts.
• Clear parameter requirements ensure developers know what is needed for successful execution.
• Understanding potential error codes aids in debugging scripts effectively.