Updates to standards.

README.md

@@ -111,7 +111,7 @@ try {
 ```
 
 Lastly, it the package has an interface that makes it easier to work with the
-`application/problem+json` format, as defined in [RFC7807][3]. The interface
+`application/problem+json` format, as defined in [RFC9457][3]. The interface
 has `type`, `title`, `detail` and `instance` properties, which makes it easier
 to write a generic interface that emits this JSON error format.
 
@@ -180,7 +180,7 @@ export class Gone extends HttpErrorBase {}
 export class LengthRequired extends HttpErrorBase {}
 export class PreconditionFailed extends HttpErrorBase {}
 
-export class PayloadTooLarge extends HttpErrorBase {
+export class ContentTooLarge extends HttpErrorBase {
   retryAfter: number | null;
   constructor(detail: string|null = null, retryAfter: number|null = null) {}
 }
@@ -190,7 +190,7 @@ export class UnsupportedMediaType extends HttpErrorBase {}
 export class RangeNotSatisfiable extends HttpErrorBase {}
 export class ExpectationFailed extends HttpErrorBase {}
 export class MisdirectedRequest extends HttpErrorBase {}
-export class UnprocessableEntity extends HttpErrorBase {}
+export class UnprocessableContent extends HttpErrorBase {}
 export class Locked extends HttpErrorBase {}
 export class FailedDependency extends HttpErrorBase {}
 export class TooEarly extends HttpErrorBase {}
@@ -218,12 +218,11 @@ export class HttpVersionNotSupported extends HttpErrorBase {}
 export class VariantAlsoNegotiates extends HttpErrorBase {}
 export class UnsufficientStorage extends HttpErrorBase {}
 export class LoopDetected extends HttpErrorBase {}
-export class NotExtended extends HttpErrorBase {}
 export class NetworkAuthenticationRequired extends HttpErrorBase {}
 ```
 
 ...
 
 [1]: https://github.com/curveball/
 [2]: http://koajs.com/
-[3]: https://tools.ietf.org/html/rfc7807
+[3]: https://tools.ietf.org/html/rfc9457

changelog.md

@@ -10,6 +10,10 @@ Changelog
   ESM is the future, so we're dropping CommonJS.
 * Now requires Node 18.
 * Upgraded to Typescript 5.3.
+* To match RFC9110, `UnprocessableEntity` is now `UnprocessableContent`, and
+  `PayloadToolarge` is now `ContentTooLarge`. The old classes still exist and
+  have been marked as deprecated.
+* Updated references from RFC7807 to RFC9457.
 
 
 0.5.0 (2023-02-14)

src/index.ts

@@ -210,7 +210,7 @@ export class PreconditionFailed extends HttpErrorBase {
 }
 
 /**
- * Emits 413 Payload Too Large.
+ * Emits 413 Content Too Large
  *
  * If the status is temporary, it's possible for a server to send a
  * Retry-After header to try again. This value may be embeded in this
@@ -220,9 +220,9 @@ export class PreconditionFailed extends HttpErrorBase {
  *
  * throw new PayloadTooLarge('Send the large file again in 10 minutes', 600);
  */
-export class PayloadTooLarge extends HttpErrorBase {
+export class ContentTooLarge extends HttpErrorBase {
   httpStatus = 413;
-  title = 'Payload Too Large';
+  title = 'Content Too Large';
 
   retryAfter: number | null;
 
@@ -234,6 +234,14 @@ export class PayloadTooLarge extends HttpErrorBase {
   }
 }
 
+/**
+  * Payload Too Large was the old name of this error, but all instances of
+  * Payload have been renamed to Content in RFC9110.
+  *
+  * @deprecated
+ */
+export class PayloadTooLarge extends ContentTooLarge {}
+
 /**
  * Emits 414 URI Too Long
  */
@@ -275,13 +283,21 @@ export class MisdirectedRequest extends HttpErrorBase {
 }
 
 /**
- * Emits 422 Unprocessable Entity
+ * Emits 422 Unprocessable Content
  */
-export class UnprocessableEntity extends HttpErrorBase {
+export class UnprocessableContent extends HttpErrorBase {
   httpStatus = 422;
   title = 'Unprocessable Entity';
 }
 
+/**
+ * RFC9110 renamed this to Unprocessable Content.
+ *
+ * @deprecated
+ */
+export class UnprocessableEntity extends UnprocessableContent {
+}
+
 /**
  * Emits 423 Locked
  */
@@ -455,7 +471,11 @@ export class LoopDetected extends HttpErrorBase {
 }
 
 /**
- * Emits 510 Not Extended
+ * Emits 510 Not Extended.
+ *
+ * This status code has been marked as obsolute.
+ *
+ * @deprecated
  */
 export class NotExtended extends HttpErrorBase {
   httpStatus = 510;