serverless-sam/integration_tests/tmp/openwhisk-node-chaining-functions/README.md

Serverless framework plugin to export AWS SAM templates for a service

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title: OpenWhisk Serverless Chaining Functions example in NodeJS
description: This example demonstrates chaining functions in NodeJS.
layout: Doc
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# Serverless Boilerplate - OpenWhisk - Node.js

Make sure `serverless` is installed. [See installation guide](https://serverless.com/framework/docs/providers/openwhisk/guide/installation/).

You will also need to set up your OpenWhisk account credentials using environment variables or a configuration file. Please see the [this guide for more information](https://serverless.com/framework/docs/providers/aws/guide/credentials/).

## 1. Install Provider Plugin
`npm install -g serverless-openwhisk` 

## 2. Install Service Dependencies
`npm install` in this directory to download the modules from `package.json`.

## 3. Deploy
`serverless deploy` or `sls deploy`. `sls` is shorthand for the Serverless CLI command

Make a note of the API endpoint that is logged to the console during deployment.

```
Serverless: Configured API endpoint: https://xxx-yyy-zzz-gws.api-gw.mybluemix.net/my_service
```

## 4. Invoke sequence function
`serverless invoke --function chained_seq --data '{"message": "a b c d e"}'` 

`-f` is also shorthand for `--function`

In your terminal window you should see the response from Apache OpenWhisk

```bash
{
    "message": "e d c b a"
}
```

## 5. Invoke chained function
`serverless invoke --function manual_seq --data '{"message": "a b c d e"}'` 

`-f` is also shorthand for `--function`

In your terminal window you should see the response from Apache OpenWhisk

```bash
{
    "message": "e d c b a"
}
```

**For more information on the Serverless OpenWhisk plugin, please see the project repository: [https://serverless.com/framework/docs/providers/aws/guide/credentials/](https://serverless.com/framework/docs/providers/aws/guide/credentials/).**