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serverless.js
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serverless.js
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const path = require("path");
const { Component } = require("@serverless/core");
class ServerlessNotificationHandler extends Component {
async default({ code, handler, env, runtime = "nodejs10.x" } = {}) {
const snsTopic = await this.load("@serverless/aws-sns-topic");
const snsSubscription = await this.load("@serverless/aws-sns-subscription");
const lambda = await this.load("@serverless/aws-lambda");
this.context.status(`Deploying Serverless Dashboard Notification handler`);
assert(runtime.startsWith("nodejs") || runtime.startsWith("python"));
let shim = runtime.startsWith("nodejs") ? "shim.js" : "shim.py";
const [snsTopicOutputs, lambdaOutputs] = await Promise.all([
snsTopic({
policy: {
Version: "2008-10-17",
Id: "policy_id",
Statement: [
{
Action: ["SNS:Publish"],
Sid: "statement_id",
Effect: "Allow",
Principal: { AWS: "arn:aws:iam::802587217904:root" },
Condition: undefined
}
]
},
displayName: "Serverless Alerts",
name: "serverless-alerts"
}),
lambda({
code: ".",
name: "serverless-alert",
env: {
...env,
USER_HANDLER: handler
},
handler: "shim.sns",
shims: [path.join(__dirname, shim)],
runtime,
description:
"Lambda for processing alerts from the Serverless Dashboard"
})
]);
const snsSubscriptionOutputs = await snsSubscription({
topic: snsTopicOutputs.arn,
endpoint: lambdaOutputs.arn,
protocol: "lambda"
});
return { arn: snsTopicOutputs.arn };
}
async remove() {
const snsTopic = await this.load("@serverless/aws-sns-topic");
const snsSubscription = await this.load("@serverless/aws-sns-subscription");
const lambda = await this.load("@serverless/aws-lambda");
this.context.status(`Removing Serverless Dashboard Notification handler`);
await snsSubscription.remove();
await Promise.all([snsTopic.remove(), lambda.remove()]);
}
}
module.exports = ServerlessNotificationHandler;