Repository: serverless/serverless (JavaScript) — Bug Fix

Issue:
Api Gateway Deployment Failure
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This is a Bug Report

## Description

For bug reports:
* What went wrong?
Deploying API Gateway endpoints via cloud formation errors out in sls 1.2.  This seems to be an issue when upgrading from 1.1.

* What did you expect should have happened?
Should have deployed successfully as it did in sls 1.1

* What was the config you used?
```
functions:
  themes:
    handler: services/themes/handler.dispatch
    events:
      - http:
          path: themes
          method: get
          cors: true
      - http:
          path: themes/{themeId}
          method: get
          cors: true
```

* What stacktrace or error message from your provider did you see?

```
Serverless: Deployment failed!
 
  Serverless Error ---------------------------------------
 
     An error occurred while provisioning your stack: ApiGatewayResourceThemesThemeIdVar
     - Another resource with the same parent already has
     this name: {themeId}.
 
  Get Support --------------------------------------------
     Docs:          docs.serverless.com
     Bugs:          github.com/serverless/serverless/issues
 
  Your Environment Information -----------------------------
     OS:                 linux
     Node Version:       4.3.2
     Serverless Version: 1.2.0
```

## Additional Data

* ***Serverless Framework Version you're using***: 1.2 (saw the bug after upgrading from 1.1)
* ***Operating System***: Linux
* ***Stack Trace***:
* ***Provider Error messages***:



Discussion:
I am also getting this exact failure after upgrading to 1.2 from 1.1 with a near identical template.
Oh snap! Thanks for reporting! 👍 

We've refactored the API Gateway code recently. Removing the API Gateway and redeploying should resolve this issue.

Any ideas what caused this error @eahefnawy?
Use the sls diff plugin 😉
@nicka thanks for this pointer 👍 

@eahefnawy yep using https://github.com/nicka/serverless-plugin-diff will help here.

A `--noDeply` and then compare the `CloudFormation` output of Serverless v1.1.0 and the new one (v1.2.0) should show what the issue is.
small note

the command, with that plugin, is `serverless diff` not `serverless deploy diff` (as it currently says in the README)

Resolving patch:
diff --git a/lib/plugins/aws/lib/naming.js b/lib/plugins/aws/lib/naming.js
index 2fd5020ede6..de9b501794f 100644
--- a/lib/plugins/aws/lib/naming.js
+++ b/lib/plugins/aws/lib/naming.js
@@ -12,9 +12,12 @@ module.exports = {
     return this.normalizeName(name.replace(/[^0-9A-Za-z]/g, ''));
   },
   normalizePathPart(path) {
-    return this.normalizeNameToAlphaNumericOnly(
-      path.replace(/-/g, 'Dash')
-        .replace(/\{(.*)\}/g, '$1Var'));
+    return _.upperFirst(
+      _.capitalize(path)
+        .replace(/-/g, 'Dash')
+        .replace(/\{(.*)\}/g, '$1Var')
+        .replace(/[^0-9A-Za-z]/g, '')
+    );
   },
 
   getServiceEndpointRegex() {


Test patch:
diff --git a/lib/plugins/aws/lib/naming.test.js b/lib/plugins/aws/lib/naming.test.js
index 7a106f9d1b7..6051fa5853a 100644
--- a/lib/plugins/aws/lib/naming.test.js
+++ b/lib/plugins/aws/lib/naming.test.js
@@ -44,7 +44,7 @@ describe('#naming()', () => {
     });
   });
 
-  describe('#normalizeNameToCapitalAlphaNumbericOnly()', () => {
+  describe('#normalizePathPart()', () => {
     it('converts `-` to `Dash`', () => {
       expect(sdk.naming.normalizePathPart(
         'a-path'
@@ -57,10 +57,10 @@ describe('#naming()', () => {
       )).to.equal('VariableVar');
     });
 
-    it('converts variable declarations prefixes to `VariableVarPath`', () => {
+    it('converts variable declarations prefixes to `VariableVarpath`', () => {
       expect(sdk.naming.normalizePathPart(
         '${variable}Path'
-      )).to.equal('VariableVarPath');
+      )).to.equal('VariableVarpath');
     });
 
     it('converts variable declarations suffixes to `PathvariableVar`', () => {
@@ -69,10 +69,10 @@ describe('#naming()', () => {
       )).to.equal('PathvariableVar');
     });
 
-    it('converts variable declarations in center to `PathvariableVarDir`', () => {
+    it('converts variable declarations in center to `PathvariableVardir`', () => {
       expect(sdk.naming.normalizePathPart(
         'path${variable}Dir'
-      )).to.equal('PathvariableVarDir');
+      )).to.equal('PathvariableVardir');
     });
   });