Make it work with Async Hooks

.travis.yml

@@ -1,7 +1,5 @@
 language: node_js
 node_js:
-  - "0.8"
-  - "0.10"
   - "0.12"
   - "1.8"
   - "2.5"
@@ -68,21 +66,21 @@ before_install:
     fi
   - |
     # Configure mocha for testing
-    if   node_version_lt '0.10'; then npm_use_module 'mocha' '2.5.3'
+    if   node_version_lt '0.12'; then npm_use_module 'mocha' '2.5.3'
     elif node_version_lt '4.0' ; then npm_use_module 'mocha' '3.5.3'
     elif node_version_lt '6.0' ; then npm_use_module 'mocha' '5.2.0'
     elif node_version_lt '8.0' ; then npm_use_module 'mocha' '6.2.2'
     fi
   - |
     # Configure nyc for coverage
-    if   node_version_lt '0.10'; then npm_remove_module_re '^nyc$'
+    if   node_version_lt '0.12'; then npm_remove_module_re '^nyc$'
     elif node_version_lt '4.0' ; then npm_use_module 'nyc' '10.3.2'
     elif node_version_lt '6.0' ; then npm_use_module 'nyc' '11.9.0'
     elif node_version_lt '8.0' ; then npm_use_module 'nyc' '14.1.1'
     fi
   - |
     # Configure supertest for http calls
-    if   node_version_lt '0.10'; then npm_use_module 'supertest' '1.1.0'
+    if   node_version_lt '0.12'; then npm_use_module 'supertest' '1.1.0'
     elif node_version_lt '4.0' ; then npm_use_module 'supertest' '2.0.0'
     elif node_version_lt '6.0' ; then npm_use_module 'supertest' '3.4.2'
     fi

HISTORY.md

@@ -8,6 +8,7 @@ unreleased
     - deps: [email protected]
   * deps: [email protected]
   * deps: type-is@~1.6.18
+  * Make it work with Async Hooks
 
 1.19.0 / 2019-04-25
 ===================

lib/read.js

@@ -74,8 +74,48 @@ function read (req, res, next, parse, debug, options) {
 
   // read body
   debug('read body')
-  getBody(stream, opts, function (error, body) {
-    if (error) {
+  new Promise(function (resolve, reject) {
+    getBody(stream, opts, function (error, body) {
+      if (error) {
+        return reject(error)
+      }
+      resolve(body)
+    })
+  })
+    .then(function (body) {
+      // verify
+      if (verify) {
+        try {
+          debug('verify body')
+          verify(req, res, body, encoding)
+        } catch (err) {
+          next(createError(403, err, {
+            body: body,
+            type: err.type || 'entity.verify.failed'
+          }))
+          return
+        }
+      }
+
+      // parse
+      var str = body
+      try {
+        debug('parse body')
+        str = typeof body !== 'string' && encoding !== null
+          ? iconv.decode(body, encoding)
+          : body
+        req.body = parse(str)
+      } catch (err) {
+        next(createError(400, err, {
+          body: str,
+          type: err.type || 'entity.parse.failed'
+        }))
+        return
+      }
+
+      next()
+    })
+    .catch(function (error) {
       var _error
 
       if (error.type === 'encoding.unsupported') {
@@ -94,41 +134,7 @@ function read (req, res, next, parse, debug, options) {
       onFinished(req, function onfinished () {
         next(createError(400, _error))
       })
-      return
-    }
-
-    // verify
-    if (verify) {
-      try {
-        debug('verify body')
-        verify(req, res, body, encoding)
-      } catch (err) {
-        next(createError(403, err, {
-          body: body,
-          type: err.type || 'entity.verify.failed'
-        }))
-        return
-      }
-    }
-
-    // parse
-    var str = body
-    try {
-      debug('parse body')
-      str = typeof body !== 'string' && encoding !== null
-        ? iconv.decode(body, encoding)
-        : body
-      req.body = parse(str)
-    } catch (err) {
-      next(createError(400, err, {
-        body: str,
-        type: err.type || 'entity.parse.failed'
-      }))
-      return
-    }
-
-    next()
-  })
+    })
 }
 
 /**

package.json

@@ -41,7 +41,7 @@
     "index.js"
   ],
   "engines": {
-    "node": ">= 0.8"
+    "node": ">= 0.12"
   },
   "scripts": {
     "lint": "eslint --plugin markdown --ext js,md .",

test/body-parser.js

@@ -3,6 +3,13 @@ var http = require('http')
 var methods = require('methods')
 var request = require('supertest')
 
+var testAsyncHooks = false
+try {
+  var asyncHooks = require('async_hooks')
+  testAsyncHooks = true
+} catch (ignored) {
+}
+
 var bodyParser = require('..')
 
 describe('bodyParser()', function () {
@@ -51,6 +58,31 @@ describe('bodyParser()', function () {
       .expect(200, '{"user":"tobi"}', done)
   })
 
+  if (testAsyncHooks) {
+    it('should work with async hooks', function (done) {
+      var _bodyParser = bodyParser()
+      var asyncLocalStorage = new asyncHooks.AsyncLocalStorage()
+
+      var server = http.createServer(function (req, res) {
+        const store = {
+          contextMaintained: true
+        }
+        asyncLocalStorage.run(store, function () {
+          _bodyParser(req, res, function (err) {
+            res.statusCode = err ? (err.status || 500) : 200
+            res.end(err ? err.message : JSON.stringify(asyncLocalStorage.getStore()))
+          })
+        })
+      })
+
+      request(server)
+        .post('/')
+        .set('Content-Type', 'application/json')
+        .send('{"user":"tobi"}')
+        .expect(200, '{"contextMaintained":true}', done)
+    })
+  }
+
   describe('http methods', function () {
     before(function () {
       var _bodyParser = bodyParser()