Replace Services with npm Modules

On this page

Overview

HTTP Service
node-fetch
axios
Twilio Service
AWS Service
S3
Kinesis
Lambda
SES

Realm is now Atlas Device SDK – Learn More

Overview

You should migrate deprecated third-party service integrations to use the corresponding official libraries available from npm. The sections later on this page contain details and examples for each service.

To migrate from a deprecated service:

Add a library for the service from npm to your app.
Import the library in your functions. Replace any calls to the built-in service actions with calls to the corresponding methods in the imported library.
If the service has webhooks, convert them to HTTPS endpoints.

HTTP Service

Replace HTTP requests sent through an HTTP Service client with calls to an HTTP library like node-fetch or axios.

node-fetch

npm i node-fetch@^2

Important

Atlas App Services does not support v3 of node-fetch. Use v2 instead.

Before

exports = async function() {
  const http = context.services.get("myHttp");
  const response = await http.get({
    url: "https://www.example.com",
    headers: { "Content-Type": [ "application/json" ] }
  })
  return response.body.text()
}

After (node-fetch)

exports = async function() {
  const fetch = require("node-fetch"); // require calls must be in exports function
  const response = await fetch("https://www.example.com", {
    method: "GET",
    headers: { "Content-Type": "application/json" }
  })
  return response.text()
}

axios

npm i axios

Before

exports = async function() {
  const http = context.services.get("myHttp");
  const response = await http.get({
    url: "https://www.example.com",
    headers: { "Content-Type": [ "application/json" ] }
  })
  return response.body.text()
}

After (axios)

exports = async function() {
  const axios = require("axios"); // require calls must be in exports function
  const response = await axios.get("https://www.example.com", {
    headers: { "Content-Type": "application/json" }
  })
  return response.data
}

Twilio Service

Replace calls through a Twilio Service client with calls to the official Twilio Node Helper Library.

npm i twilio

To authenticate Twilio requests, store your Account SID and Auth Token as values. You can then access them within functions and pass them to the SDK.

Before

exports = async function() {
  const twilio = context.services.get("myTwilio");
  twilio.send({
    to: "+15558675309",
    from: "+15551234567",
    body: "Hello from App Services!",
  });
}

After

exports = async function() {
  // Note: require calls must be in the exported function
  const twilio = require('twilio')(
    // Your Account SID and Auth Token from https://www.twilio.com/console
    // Specify the same Twilio credentials as the service configuration
    context.values.get("TwilioAccountSID"),
    context.values.get("TwilioAuthToken"),
  )
  await twilio.messages.create({
    to: "+15558675309",
    from: "+15551234567",
    body: "Hello from App Services!",
  })
}

AWS Service

Replace calls through an AWS Service client with calls to the official AWS JavaScript SDK.

npm i aws-sdk

Important

App Services does not yet support version 3 of the AWS SDK. Use the version 2 SDK to replace the deprecated AWS Service in your functions.

To authenticate AWS requests, store your Access Key ID and Secret Access Key as values. You can then access them within functions and pass them to the SDK.

S3

Before

exports = async function() {
  const s3 = context.services.get("myAWS").s3("us-east-1");
  const putResult = await s3.PutObject({
    Bucket: "bucketName",
    Key: "keyName",
    Body: EJSON.stringify({ hello: "world" }),
  });
  const getResult = await s3.GetObject({
    Bucket: "bucketName",
    Key: "keyName",
  });
}

After

exports = async function() {
  const S3 = require('aws-sdk/clients/s3'); // require calls must be in exports function
  const s3 = new S3({
    accessKeyId: context.values.get("awsAccessKeyId"),
    secretAccessKey: context.values.get("awsSecretAccessKey"),
    region: "us-east-1",
  });
  // https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/S3.html#putObject-property
  const putResult = await s3.putObject({
    Bucket: "bucketName",
    Key: "keyName",
    Body: EJSON.stringify({ hello: "world" }),
  }).promise();
  // https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/S3.html#getObject-property
  const getResult = await s3.getObject({
    Bucket: "bucketName",
    Key: "keyName",
  }).promise();
}

Kinesis

Before

exports = async function() {
  const kinesis = context.services.get("myAWS").kinesis("us-east-1");
  const putResult = await kinesis.PutRecord({
    Data: EJSON.stringify({ hello: "world" }),
    StreamName: "myStream",
    PartitionKey: "myPartition",
  });
}

After

exports = async function() {
  const Kinesis = require('aws-sdk/clients/kinesis'); // require calls must be in exports function
  const kinesis = new Kinesis({
    accessKeyId: context.values.get("awsAccessKeyId"),
    secretAccessKey: context.values.get("awsSecretAccessKey"),
    region: "us-east-1",
  });
  // https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/Kinesis.html#putRecord-property
  const putResult = await kinesis.putRecord({
    Data: EJSON.stringify({ hello: "world" }),
    StreamName: "myStream",
    PartitionKey: "myPartition",
  }).promise();
}

Lambda

Before

exports = async function() {
  const lambda = context.services.get('MyAwsService').lambda("us-east-1");
  const invokeResult = await lambda.Invoke({
    FunctionName: "myLambdaFunction",
    Payload: EJSON.stringify({ hello: "world" }),
  });
};

After

exports = async function() {
  const Lambda = require('aws-sdk/clients/lambda'); // require calls must be in exports function
  const lambda = new Lambda({
    accessKeyId: context.values.get("awsAccessKeyId"),
    secretAccessKey: context.values.get("awsSecretAccessKey"),
    region: "us-east-1",
  });
  // https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/Lambda.html#invoke-property
  const invokeResult = await lambda.invoke({
    FunctionName: "myLambdaFunction",
    Payload: EJSON.stringify({ hello: "world" }),
  }).promise();
}

SES

Before

exports = async function() {
  const ses = context.services.get('MyAwsService').ses("us-east-1");
  const sendResult = await ses.SendEmail({
    Source: "sender@example.com",
    Destination: { ToAddresses: ["receiver@example.com"] },
    Message: {
      Body: {
        Html: {
          Charset: "UTF-8",
          Data: `This is a message from user ${context.user.id} sent through AWS SES`
        }
      },
      Subject: {
        Charset: "UTF-8",
        Data: "Test Email Please Ignore"
      },
    },
  });
};

After

exports = async function() {
  const SES = require('aws-sdk/clients/ses'); // require calls must be in exports function
  const ses = new SES({
    accessKeyId: context.values.get("awsAccessKeyId"),
    secretAccessKey: context.values.get("awsSecretAccessKey"),
    region: "us-east-1",
  });
  // https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/SES.html#sendEmail-property
  const sendResult = await ses.sendEmail({
    Source: "sender@example.com",
    Destination: { ToAddresses: ["receiver@example.com"] },
    Message: {
      Body: {
        Html: {
          Charset: "UTF-8",
          Data: `This is a message from user ${context.user.id} sent through AWS SES`
        }
      },
      Subject: {
        Charset: "UTF-8",
        Data: "Test Email Please Ignore"
      },
    },
  }).promise();
}

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