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Merge pull request #1 from failsafe-engineering/feature/implement-dynamic-trigger
Major: Implementing basic version
2 parents 83730f7 + 9eb6259 commit cce7c3e

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‎.github/workflows/cd.yml‎

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name: CD
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on:
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release:
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types: [published]
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workflow_dispatch:
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inputs:
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debug_enabled:
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description: 'Type true if you want to debug the jobs.'
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required: false
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default: false
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jobs:
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build_and_test:
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name: Build and test
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runs-on: ubuntu-latest
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strategy:
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matrix:
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node-version: [14.x, 16.x]
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steps:
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- name: Checkout
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uses: actions/checkout@v3
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- name: Setup node
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uses: actions/setup-node@v3
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with:
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node-version: ${{ matrix.node-version }}
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registry-url: "https://registry.npmjs.org"
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- name: Setup tmate session
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uses: mxschmitt/action-tmate@v3
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if: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.debug_enabled }}
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- name: Install dependencies
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run: npm ci
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- name: Lint code
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run: npm run lint
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- name: Run tests
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run: npm test
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publish_to_npm:
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name: Publish to npm
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needs: build_and_test
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runs-on: ubuntu-latest
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steps:
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- name: Checkout
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uses: actions/checkout@v3
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- name: Setup node
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uses: actions/setup-node@v3
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with:
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node-version: 16
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registry-url: https://registry.npmjs.org/
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- name: Setup tmate session
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uses: mxschmitt/action-tmate@v3
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if: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.debug_enabled }}
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- run: npm ci
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- run: npm publish --access public
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env:
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NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}

‎.github/workflows/ci.yml‎

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name: CI
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on:
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pull_request:
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types: [opened, synchronize, closed]
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workflow_dispatch:
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inputs:
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debug_enabled:
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description: 'Type true if you want to debug the jobs.'
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required: false
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default: false
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jobs:
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build_and_test:
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name: Build and test
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runs-on: ubuntu-latest
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strategy:
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matrix:
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node-version: [14.x, 16.x]
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steps:
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- name: Checkout
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uses: actions/checkout@v3
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- name: Setup node
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uses: actions/setup-node@v3
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with:
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node-version: ${{ matrix.node-version }}
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registry-url: "https://registry.npmjs.org"
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- name: Setup tmate session
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uses: mxschmitt/action-tmate@v3
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if: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.debug_enabled }}
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- name: Install dependencies
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run: npm ci
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- name: Lint code
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run: npm run lint
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- name: Run tests
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run: npm test
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bump_version:
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name: Bump version
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if: ${{ (github.event.pull_request.state == 'closed' && github.event.pull_request.merged == true) || (github.event_name == 'workflow_dispatch' && github.event.inputs.debug_enabled) }}
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runs-on: ubuntu-latest
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needs: build_and_test
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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steps:
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- name: Checkout
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uses: actions/checkout@v3
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- name: Setup node
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uses: actions/setup-node@v3
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with:
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node-version: "16.x"
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registry-url: "https://registry.npmjs.org"
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- name: Setup tmate session
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uses: mxschmitt/action-tmate@v3
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if: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.debug_enabled }}
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- name: Configure Git
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run: |
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git config --local user.email "[email protected]"
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git config --local user.name "GitHub Action"
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- name: Set increment patch
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if: contains(github.event.pull_request.title, 'patch')
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run: npm version patch
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- name: Set increment minor
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if: contains(github.event.pull_request.title, 'minor')
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run: npm version minor
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- name: Set increment major
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if: contains(github.event.pull_request.title, 'major')
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run: npm version major
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- name: Commit
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if: contains(github.event.pull_request.title, 'patch') || contains(github.event.pull_request.title, 'minor') || contains(github.event.pull_request.title, 'major')
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env:
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RELEASE_MESSAGE: ${{ github.event.pull_request.title }}
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run: |
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git push "https://$GITHUB_ACTOR:[email protected]/$GITHUB_REPOSITORY.git" HEAD:$GITHUB_REF --follow-tags;
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LATEST_TAG=$(git tag | grep -E '^v[0-9]' | sort -V | tail -1);
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curl --request POST \
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--url https://api.github.com/repos/$GITHUB_REPOSITORY/releases \
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--header "Authorization: token $GITHUB_TOKEN" \
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--header "content-type: application/json" \
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--data '{
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"tag_name": "'"$LATEST_TAG"'",
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"name": "'"$LATEST_TAG"'",
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"body": "'"$RELEASE_MESSAGE"'",
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"draft": true
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}'

‎.gitignore‎

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node_modules
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lib
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coverage
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.DS_Store

‎README.md‎

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# serverless-aws-lambda-dynamic-trigger
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## Modules
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<dl>
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<dt><a href="#index.module_js">js</a></dt>
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<dd><p>The plugin can register triggers (events) for a lambda function dynamically. At deployment time</p>
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<ol>
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<li>It fetches the value of a parameter in the Parameters. The value must be a list ARNs sepearted by comma.</li>
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<li>Parses the individual ARNs.</li>
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<li>Register the ARNs as triggers with the configured lambda function or functions.</li>
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</ol>
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<p>Please note that currently you can only use the plugin with sns, sqs or kinesis triggers (events).</p>
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<p>The original idea is to make the same lambda function triggered by different events on different environments (stages).
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Like on <em>dev</em> foo lambda function is triggered by</p>
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<ul>
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<li>arn:aws:sns:eu-west-2:123456654321:topic1</li>
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<li>arn:aws:sns:eu-west-2:123456654321:topic2</li>
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<li>arn:aws:sns:eu-west-2:123456654321:topic3
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while on <em>prod</em> foo lambda function is triggered by</li>
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<li>arn:aws:sns:eu-west-2:123456654321:topic1</li>
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<li>arn:aws:sns:eu-west-2:123456654321:topic2
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This way we can switch features on and off on different stages.</li>
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</ul>
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<p>The dynamic trigger sets needs to ne stored in the Parameter Store of the Systems Manager (SSM) and it should look somewhat like this:
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Name: /dev/dynamic-trigger
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Value: arn:aws:sns:eu-west-2:123456654321:topic1,arn:aws:sns:eu-west-2:123456654321:topic2,arn:aws:sns:eu-west-2:123456654321:topic3
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or
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Name: /prod/dynamic-trigger
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Value: arn:aws:sns:eu-west-2:123456654321:topic1,arn:aws:sns:eu-west-2:123456654321:topic2</p>
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<p>The config parameters:</p>
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<ul>
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<li>region: the region of the Systems Manager -&gt; Parameter Store</li>
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<li>functions:<ul>
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<li>name: The name of the function</li>
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</ul>
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</li>
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</ul>
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<p>plugins:</p>
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<ul>
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<li>@kakkuk/serverless-aws-lambda-dynamic-trigger
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custom:
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dynamicTrigger:
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region: &quot;eu-west-2&quot; // !!! Optional !!! It&#39;ll fall back to AWS_DEFAULT_REGION if it&#39;s not set
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functions:<ul>
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<li>name: &quot;handler&quot;
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ssmPath: &quot;{/path/to/triggers}&quot;</li>
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</ul>
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</li>
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</ul>
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</dd>
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</dl>
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## Members
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<dl>
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<dt><a href="#Package @kakkuk/serverless-aws-lambda-dynamic-trigger">Package @kakkuk/serverless-aws-lambda-dynamic-trigger</a></dt>
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<dd><p>Serverless plugin registers a set of events stored in the AWS Parameter Store.</p>
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</dd>
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</dl>
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<a name="index.module_js"></a>
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## js
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The plugin can register triggers (events) for a lambda function dynamically. At deployment time
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1. It fetches the value of a parameter in the Parameters. The value must be a list ARNs sepearted by comma.
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2. Parses the individual ARNs.
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3. Register the ARNs as triggers with the configured lambda function or functions.
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Please note that currently you can only use the plugin with sns, sqs or kinesis triggers (events).
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The original idea is to make the same lambda function triggered by different events on different environments (stages).
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Like on *dev* foo lambda function is triggered by
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- arn:aws:sns:eu-west-2:123456654321:topic1
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- arn:aws:sns:eu-west-2:123456654321:topic2
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- arn:aws:sns:eu-west-2:123456654321:topic3
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while on *prod* foo lambda function is triggered by
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- arn:aws:sns:eu-west-2:123456654321:topic1
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- arn:aws:sns:eu-west-2:123456654321:topic2
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This way we can switch features on and off on different stages.
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The dynamic trigger sets needs to ne stored in the Parameter Store of the Systems Manager (SSM) and it should look somewhat like this:
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Name: /dev/dynamic-trigger
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Value: arn:aws:sns:eu-west-2:123456654321:topic1,arn:aws:sns:eu-west-2:123456654321:topic2,arn:aws:sns:eu-west-2:123456654321:topic3
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or
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Name: /prod/dynamic-trigger
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Value: arn:aws:sns:eu-west-2:123456654321:topic1,arn:aws:sns:eu-west-2:123456654321:topic2
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The config parameters:
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- region: the region of the Systems Manager -> Parameter Store
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- functions:
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- name: The name of the function
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plugins:
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- @kakkuk/serverless-aws-lambda-dynamic-trigger
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custom:
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dynamicTrigger:
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region: "eu-west-2" // !!! Optional !!! It'll fall back to AWS_DEFAULT_REGION if it's not set
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functions:
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- name: "handler"
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ssmPath: "{/path/to/triggers}"
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<a name="Package @kakkuk/serverless-aws-lambda-dynamic-trigger"></a>
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## Package @kakkuk/serverless-aws-lambda-dynamic-trigger
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Serverless plugin registers a set of events stored in the AWS Parameter Store.
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**Kind**: global variable

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