IoT Core

Overview

CloudMock emulates AWS IoT Core, supporting things, thing types, thing groups, policies, certificates, topic rules, and tagging.

Supported Operations

Operation	Status	Notes
CreateThing	Supported	Creates a thing
DescribeThing	Supported	Returns thing details
ListThings	Supported	Lists all things
UpdateThing	Supported	Updates a thing
DeleteThing	Supported	Deletes a thing
CreateThingType	Supported	Creates a thing type
DescribeThingType	Supported	Returns thing type details
ListThingTypes	Supported	Lists thing types
DeleteThingType	Supported	Deletes a thing type
CreateThingGroup	Supported	Creates a thing group
DescribeThingGroup	Supported	Returns thing group details
ListThingGroups	Supported	Lists thing groups
DeleteThingGroup	Supported	Deletes a thing group
AddThingToThingGroup	Supported	Adds a thing to a group
RemoveThingFromThingGroup	Supported	Removes a thing from a group
CreatePolicy	Supported	Creates an IoT policy
GetPolicy	Supported	Returns policy details
ListPolicies	Supported	Lists policies
DeletePolicy	Supported	Deletes a policy
AttachPolicy	Supported	Attaches a policy to a target
DetachPolicy	Supported	Detaches a policy
ListAttachedPolicies	Supported	Lists attached policies
CreateKeysAndCertificate	Supported	Creates keys and certificate
DescribeCertificate	Supported	Returns certificate details
ListCertificates	Supported	Lists certificates
DeleteCertificate	Supported	Deletes a certificate
AttachThingPrincipal	Supported	Attaches a principal to a thing
DetachThingPrincipal	Supported	Detaches a principal
ListThingPrincipals	Supported	Lists thing principals
CreateTopicRule	Supported	Creates a topic rule
GetTopicRule	Supported	Returns topic rule details
ListTopicRules	Supported	Lists topic rules
DeleteTopicRule	Supported	Deletes a topic rule
TagResource	Supported	Adds tags to a resource
UntagResource	Supported	Removes tags from a resource
ListTagsForResource	Supported	Lists tags for a resource

Quick Start

Node.js

import { IoTClient, CreateThingCommand } from '@aws-sdk/client-iot';

const client = new IoTClient({
  endpoint: 'http://localhost:4566',
  region: 'us-east-1',
  credentials: { accessKeyId: 'test', secretAccessKey: 'test' },
});

const { thingName, thingArn } = await client.send(new CreateThingCommand({
  thingName: 'my-sensor',
}));
console.log(thingArn);

Python

import boto3

client = boto3.client('iot',
    endpoint_url='http://localhost:4566',
    region_name='us-east-1',
    aws_access_key_id='test',
    aws_secret_access_key='test')

response = client.create_thing(thingName='my-sensor')
print(response['thingArn'])

Configuration

cloudmock.yml

services:
  iot:
    enabled: true

Known Differences from AWS

• Certificates are stubs and cannot be used for real MQTT connections
• Topic rules are stored but do not trigger actions
• MQTT message broker is not implemented