Function assertJsonResponse

assertJsonResponse(response: unknown): asserts response is Response

Type guard to validate if a Response object contains JSON content. Checks both the Content-Type header and ensures it's a valid Response object.

Parameters

response: unknown
The Response object to validate

Returns asserts response is Response

Type predicate indicating if the response contains JSON content

Example

// Valid JSON response
const jsonResponse = new Response('{"data": "test"}', {
  headers: { 'Content-Type': 'application/json' }
});
assertJsonResponse(jsonResponse);

Source

export function assertJsonResponse(response: unknown): asserts response is Response {
  if (!isJsonResponse(response)) {
    throw new TypeError('assertJsonResponse| Invalid JSON response', { cause: response });
  }
}