pdi - npm Package Compare versions

Comparing version 1.0.1 to 1.1.0

package.json

 {
   "name": "pdi",
-  "version": "1.0.1",
+  "version": "1.1.0",
   "description": "Minimal Promise based dependency injection framework",
@@ -5,0 +5,0 @@ "main": "src/index.js",

readme.md

@@ -0,3 +1,3 @@
+PDI - Minimal Promise based Dependency Injection framework
 
-
 This is a simple library that provides a powerful abstraction for dealing with dependency injection both for system start up and for complex async tasks.
@@ -73,1 +73,23 @@
 This function is useful for where the DI container will be used to perform a particular operation, rather then for system start-up. It returns a DI container with the `add`, `start` and `clear` methods.
+
+While being small this library is powerful enough to be used for async flow
+control, for example:
+
+```javascript
+const flow = pdi()
+flow.add("body", req.body)
+flow.add("userId", ["body"], prop("userId"))
+flow.add("user", ["userId"], getUser)
+flow.add("friends", ["user"], getFriends)
+flow.add("result", ["friends", "user"], assoc("friends"))
+flow.start(["result"])
+.then((result) => res.send(result))
+.catch((err) => res.sendStatus(500))
+
+```
+
+
+ Extra utils for testing:
+
+ - `pdi._test.clear()`
+ - `pdi._test.`

src/index.js

@@ -56,2 +56,3 @@ const Promise = require("bluebird")
   const names = pluck("name", items)
+  console.log(`Initialising ${names.join(", ")}`)
   return Promise.map(items, (item) => {
@@ -72,4 +73,7 @@ const args = map(flip(prop)(memo), item.deps)
   let nameIdx = 0
+  const startTime = Date.now()
+  let firstAdd
 
   function add(name, deps, fn) {
+    if (!firstAdd) firstAdd = Date.now()
     if (activated) {
@@ -100,10 +104,16 @@ throw new Error(`DI already activated - can't register: ${name} `)
     }
-    if (deps && fn) {
-      add(deps, fn)
-    }
+    console.log("First add", firstAdd - startTime)
+    console.log("Activation started", Date.now() - startTime)
     const sorted = checkAndSortDependencies(registry)
     return startActivation(sorted).then((_modules) => {
+      console.log("Activation complete", Date.now() - startTime)
       modules = _modules
       activated = true
-      return modules
+      let result = true
+      if (deps && fn) {
+        console.log(`Running start function with ${deps.join(", ")}`)
+        result = apply(fn, map(flip(prop)(modules), deps))
+      }
+
+      return Promise.resolve(result)
     })
@@ -110,0 +120,0 @@ }

No alert changes

Improved metrics

Total package byte prevSize

11461

increased by9.97%

Lines of code

257

increased by3.63%

Number of lines in readme file

95

increased by30.14%

No dependency changes