dataloader - npm Package Compare versions

Comparing version 1.1.0 to 1.2.0

dist/index.js

@@ -180,2 +180,24 @@
     }
+
+    /**
+     * Adds the provied key and value to the cache. If the key already exists, no
+     * change is made. Returns itself for method chaining.
+     */
+  }, {
+    key: 'prime',
+    value: function prime(key, value) {
+      var cacheKeyFn = this._options && this._options.cacheKeyFn;
+      var cacheKey = cacheKeyFn ? cacheKeyFn(key) : key;
+
+      // Only add the key if it does not already exist.
+      if (this._promiseCache.get(cacheKey) === undefined) {
+        // Cache a rejected promise if the value is an Error, in order to match
+        // the behavior of load(key).
+        var promise = value instanceof Error ? Promise.reject(value) : Promise.resolve(value);
+
+        this._promiseCache.set(cacheKey, promise);
+      }
+
+      return this;
+    }
   }]);
@@ -182,0 +204,0 @@

package.json

 {
   "name": "dataloader",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "description": "A data loading utility to reduce requests to a backend via batching and caching.",
@@ -45,3 +45,3 @@ "contributors": [
     "babel-core": "5.8.22",
-    "babel-eslint": "4.1.6",
+    "babel-eslint": "4.1.8",
     "chai": "3.4.1",
@@ -48,0 +48,0 @@ "coveralls": "2.11.6",

README.md

@@ -199,3 +199,9 @@ # DataLoader
 
+##### `prime(key, value)`
 
+Primes the cache with the provided key and value. If the key already exists, no
+change is made. (To forcefully prime the cache, clear the key first with
+`loader.clear(key).prime(key, value)`.) Returns itself for method chaining.
+
+
 ## Using with GraphQL
@@ -411,4 +417,9 @@
 
+## Video Source Code Walkthrough
 
+**DataLoader Source Code Walkthrough (YouTube):**
 
+<a href="https://youtu.be/OQTnXNCDywA" target="_blank" alt="DataLoader Source Code Walkthrough"><img src="https://img.youtube.com/vi/OQTnXNCDywA/0.jpg" /></a>
+
+
 [@schrockn]: https://github.com/schrockn
@@ -415,0 +426,0 @@ [Map]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map

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Improved metrics

Total package byte prevSize

29357

increased by4.5%

Lines of code

244

increased by7.96%

Number of lines in readme file

432

increased by2.61%

No dependency changes