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Poller

This coponent regularally polls the Facebook API to record the Friendship friendships between users of this application

This app uses the node-lambda package.

Development

  1. Make sure shared folder is created by gulp watch in parent folder

  2. Create a file in this folder called .env with the following contents

    AWS_ENVIRONMENT=development
AWS_ACCESS_KEY_ID=***
AWS_SECRET_ACCESS_KEY=***
AWS_ROLE=***
AWS_REGION=eu-west-1
AWS_FUNCTION_NAME=bubbles-poller
AWS_HANDLER=index.handler
AWS_MODE=event
AWS_MEMORY_SIZE=128
AWS_TIMEOUT=300
AWS_DESCRIPTION=
AWS_RUNTIME=nodejs4.3
FB_CLIENT_ID=***
FB_CLIENT_SECRET=***
FB_ACCESS_TOKEN=***
RDS_USERNAME="root"
RDS_PASSWORD=
RDS_DB_NAME=bubbles2
RDS_HOSTNAME="127.0.0.1"	


2. run ```npm install```

3. run ```node-lambda run```

Deployment
===
1. Update your deployment IAM user with the following inline policy:
	```
		{
	    "Version": "2012-10-17",
	    "Statement": [
	        {
	            "Sid": "Stmt1477574969000",
	            "Effect": "Allow",
	            "Action": [
	                "lambda:CreateFunction"
	            ],
	            "Resource": [
	                "*"
	            ]
	        }
	    ]
	}
  1. Create an AWS IAM role with "AWSLambdaBasicExecutionRole" policy. Record the Role ARN
  2. Update .env with this ARN
  3. Create a file called deploy.env with the following content 
    FB_CLIENT_ID=***
FB_CLIENT_SECRET=***
FB_ACCESS_TOKEN=***
RDS_USERNAME=***
RDS_PASSWORD=***
RDS_DB_NAME=***
RDS_HOSTNAME=***


3. ```npm run deploy```
4. Login to [AWS Console for Lambda](https://eu-west-1.console.aws.amazon.com/lambda/home?region=eu-west-1#/functions?display=list)
5. Select this lambda function
6. Click "Test"
7. If no errors, setup triggering as required

NB. If you are experimenting with an existing Facebook App, make sure the database you are working with is pre-loaded with all users for your given FB_CLIENT_ID. If not, friendship saving will fail due to MYSQL integrity constraints. (TODO: automatically pre-load users?)