calamarble-xhub-sns
v1.0.2
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check the signature of a http request and if valid post to an AWS SNS topic
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calamarble-xhub-sns
Auto-publish to an Amazon SNS topic after a X-Hub-Signature check
Checks the signature of a http request and if valid post the body of the request to a configurable existing AWS SNS topic.
Usage
With express.js
import express from 'express';
import bodyParser from 'body-parser';
import { apiEndpoint } from 'calamarble-xhub-sns';
const expressConfig = {
port: 8088,
postPath: '/mywebhook',
messages: {
serverRunning: port => `Server running on port ${port}`
}
};
const xHubSnsConfig = {
algo: 'sha1',
secret: 'MY_APP_SECRET',
topicArn: 'arn:aws:sns:us-east-1:XXXXX:yyyyy',
awsConfig: {
region: 'us-east-1'
}
messages: {
wrongSignature: 'Content signature don\'t match'
}
};
const app = express();
const postEndPoint = apiEndpoint(xHubConfig);
app.use(bodyParser.raw({ type: 'application/json' }));
app.post(expressConfig.postPath, postEndPoint);
app.listen(expressConfig.port, () => console.log(`Server running on port ${expressConfig.port}`));
With claudia-api-builder
import ApiBuilder from 'claudia-api-builder';
import { apiEndpoint as webhookPost} from 'calamarble-xhub-sns';
const api = new ApiBuilder();
const xHubConfig = {
algo: 'sha1',
secret: 'MY_APP_SECRET',
topicArn: 'arn:aws:sns:us-east-1:XXXXX:yyyyy',
messages: {
wrongSignature: 'Content signature don\'t match'
}
}
api.post('/fbwebhook', webhookPost(xHubConfig));
export { api as default };
Remember to copy the file policies/sns-publish.json
and include it in your
claudia create --policies
command line argument when creating your lambdas.