@scalar/oas-utils/dist/helpers/normalize-mime-type.js

Open API spec and Yaml handling utilities

/**
 * Normalizes a MIME type to a standard format.
 *
 * Input: application/problem+json; charset=utf-8
 * Output: application/json
 */
function normalizeMimeType(contentType) {
    if (typeof contentType !== 'string') {
        return undefined;
    }
    return contentType
        // Remove '; charset=utf-8'
        .replace(/;.*$/, '')
        // Remove 'problem+' but keep vendor-specific vnd and fhir mime types
        .replace(/\/(?!.*vnd\.|fhir\+).*\+/, '/')
        // Remove whitespace
        .trim();
}

export { normalizeMimeType };