Response.notModified constructor Null safety

Response.notModified(
  1. DateTime lastModified,
  2. CachePolicy? cachePolicy
)

Represents a 304 response.

Where lastModified is the last modified date of the resource and cachePolicy is the same policy as applied when this resource was first fetched.

Implementation

Response.notModified(DateTime lastModified, CachePolicy? cachePolicy) {
  statusCode = HttpStatus.notModified;
  headers = {HttpHeaders.lastModifiedHeader: HttpDate.format(lastModified)};
  this.cachePolicy = cachePolicy;
}