feat: Use status code 204 in place of 404.

packages/@pollyjs/core/src/persisters/rest/ajax.js

@@ -41,5 +41,7 @@ function handleResponse(xhr, resolve, reject) {
     }
   }
 
-  return xhr.status >= 200 && xhr.status < 300 ? resolve(body) : reject(xhr);
+  return xhr.status >= 200 && xhr.status < 300
+    ? resolve({ body, xhr })
+    : reject(xhr);
 }

packages/@pollyjs/core/src/persisters/rest/index.js

@@ -1,7 +1,7 @@
-import ajax from './ajax';
-import Persister from '../persister';
-import buildUrl from '../../utils/build-url';
 import stringify from 'json-stable-stringify';
+import buildUrl from '../../utils/build-url';
+import Persister from '../persister';
+import ajax from './ajax';
 
 export default class RestPersister extends Persister {
   ajax(url, ...args) {
@@ -10,33 +10,25 @@ export default class RestPersister extends Persister {
     return ajax(buildUrl(host, apiNamespace, url), ...args);
   }
 
-  findRecordingEntry(pollyRequest) {
+  async findRecordingEntry(pollyRequest) {
     const { id, order, recordingId } = pollyRequest;
 
-    return this.ajax(
+    const response = await this.ajax(
       `/${encodeURIComponent(recordingId)}/${id}?order=${order}`,
       {
         Accept: 'application/json; charset=utf-8'
       }
-    ).catch(e => {
-      if (e && e.status === 404) {
-        return null;
-      }
+    );
 
-      throw e;
-    });
+    return this._normalize(response);
   }
 
-  findRecording(recordingId) {
-    return this.ajax(`/${encodeURIComponent(recordingId)}`, {
+  async findRecording(recordingId) {
+    const response = await this.ajax(`/${encodeURIComponent(recordingId)}`, {
       Accept: 'application/json; charset=utf-8'
-    }).catch(e => {
-      if (e && e.status === 404) {
-        return null;
-      }
-
-      throw e;
     });
+
+    return this._normalize(response);
   }
 
   async saveRecording(recordingId, data) {
@@ -55,4 +47,18 @@ export default class RestPersister extends Persister {
       method: 'DELETE'
     });
   }
+
+  _normalize({ xhr, body }) {
+    /**
+     * 204 - No Content.  Polly uses this status code in place of 404
+     * when interacting with our Rest server to prevent throwing
+     * request errors in consumer's stdout (console.log)
+     */
+    if (xhr.status === 204) {
+      /* return null when a record was not found */
+      return null;
+    }
+
+    return body;
+  }
 }

packages/@pollyjs/node-server/src/api.js

@@ -1,5 +1,5 @@
-import path from 'path';
 import fs from 'fs-extra';
+import path from 'path';
 
 export default class API {
   constructor(recordingsDir) {
@@ -18,7 +18,7 @@ export default class API {
       }
     }
 
-    return this.respond(404);
+    return this.respond(204);
   }
 
   getRecording(recording) {
@@ -28,7 +28,7 @@ export default class API {
       return this.respond(200, fs.readJsonSync(recordingFilename));
     }
 
-    return this.respond(404);
+    return this.respond(204);
   }
 
   saveRecording(recording, data) {
@@ -46,7 +46,7 @@ export default class API {
       fs.removeSync(recordingFilename);
     }
 
-    return this.respond(204);
+    return this.respond(200);
   }
 
   filenameFor(recording) {