moesif-alexa-skills
v1.1.2
Published
API Monitoring Middleware for Alexa Skills and Lambda
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Moesif AWS Alexa Skills Middleware
Alexa Skills Middleware (NodeJS) to automatically log API calls from your AWS Lambda functions and sends to Moesif for API analytics and log analysis.
Designed for AWS Lambda functions that use the Alexa Skills Kit as a trigger.
This middleware expects the Alexa skills format.
How to install
npm install --save moesif-alexa-skills
How to use
The following shows how import Moesif and use:
1. Import the module:
// Import Modules
'use strict'
const moesif = require('moesif-alexa-skills');
const moesifOptions = {
applicationId: 'Your Moesif Application Id',
};
exports.handler = function (event, context, callback) {
callback(null, {
statusCode: '200',
body: JSON.stringify({key: 'hello world'}),
headers: {
'Content-Type': 'application/json',
},
});
};
exports.handler = moesif(moesifOptions, exports.handler);
2. Enter Moesif Application Id
Your Moesif Application Id can be found in the Moesif Portal. After signing up for a Moesif account, your Moesif Application Id will be displayed during the onboarding steps.
You can always find your Moesif Application Id at any time by logging into the Moesif Portal, click on the top right menu, and then clicking Installation.
Repo file structure
lib/index.js
the middleware libindex.js
sample AWS Lambda function using the middleware
Configuration options
identifyUser
Type: (event, context) => String
identifyUser is a function that takes AWS lambda event
and context
objects as arguments
and returns a userId. This helps us attribute requests to unique users.
By default, Moesif will use event.session.user.userId
options.identifyUser = function (event, context) {
// your code here, must return a string
return event.requestContext.identity.cognitoIdentityId
}
getSessionToken
Type: (event, context) => String
getSessionToken a function that takes AWS lambda event
and context
objects as arguments and returns a
session token (i.e. such as an API key). By default, Moesif will use event.session.sessionId
options.getSessionToken = function (event, context) {
// your code here, must return a string.
return event.headers['Authorization'];
}
getTags
Type: (event, context) => String
getTags is a function that takes AWS lambda event
and context
objects as arguments and returns a comma-separated string containing a list of tags.
See Moesif documentation for full list of tags.
options.getTags = function (event, context) {
// your code here. must return a comma-separated string.
if (event.path.startsWith('/users') && event.httpMethod == 'GET'){
return 'user'
}
return 'random_tag_1, random_tag2'
}
getApiVersion
Type: (event, context) => String
getApiVersion is a function that takes AWS lambda event
and context
objects as arguments and
returns a string to tag requests with a specific version of your API.
By default, Moesif will use event.version
options.getApiVersion = function (event, context) {
// your code here. must return a string.
return '1.0.5'
}
skip
Type: (event, context) => Boolean
skip is a function that takes AWS lambda event
and context
objects as arguments and returns true
if the event should be skipped (i.e. not logged)
The default is shown below and skips requests to the root path "/".
options.skip = function (event, context) {
// your code here. must return a boolean.
if (event.path === '/') {
// Skip probes to home page.
return true;
}
return false
}
maskContent
Type: MoesifEventModel => MoesifEventModel
maskContent is a function that takes the final Moesif event model (rather than the AWS lambda event/context objects) as an
argument before being sent to Moesif. With maskContent, you can make modifications to headers or body such as
removing certain header or body fields.
options.maskContent = function(moesifEvent) {
// remove any field that you don't want to be sent to Moesif.
return moesifEvent;
}
updateUser method
A method is attached to the moesif middleware object to update the users profile or metadata.
'use strict'
const moesif = require('moesif-alexa-skills');
const moesifOptions = {
applicationId: 'Your Moesif application_id',
};
var moesifMiddleware = moesif(options);
var user = {
userId: 'your user id', // required.
metadata: {
email: '[email protected]',
name: 'George'
}
}
moesifMiddleware.updateUser(user, callback);
The metadata field can be any custom data you want to set on the user. The userId field is required.
Other integrations
To view more more documentation on integration options, please visit the Integration Options Documentation.