AWS IoT Core

Technical Preview

Overview

A client-mode connector for a curated cloud-IoT slice of AWS IoT Core covering registry, Jobs/OTA, classic Device Shadow, and HTTPS data-plane publish (no MQTT bridge):

Catalog connector event	Entity / path	Notes
GET ListThings	`GET /things`	Control-plane credential check
POST CreateJob (OTA)	`PUT /jobs/{jobId}`	AWS uses PUT (catalog named it POST CreateJob)
GET things/{name}/shadow	`GET /things/{thingName}/shadow`	Classic Device Shadow
POST things/{name}/shadow	`POST /things/{thingName}/shadow`	Classic Device Shadow update
POST topics/{topic}	`POST /topics/{topic}?qos=0\|1`	Data-plane HTTPS publish — switch BASE to ATS endpoint

Default BASE_ADDRESS is control-plane https://iot.eu-west-1.amazonaws.com (no trailing slash; substitute {region}). Topics use cloud-iot/aws-iot-core/<object>/<verb>. See the base guide: REST API Connectors.

Data-plane Publish: set BASE_ADDRESS to your ATS endpoint from aws iot describe-endpoint --endpoint-type iot:Data-ATS (for example https://xxxxxx-ats.iot.eu-west-1.amazonaws.com). SigV4 service name on the data plane is iotdevicegateway (port 443). X.509 on :8443 is AWS-supported but outside this LoT template.

Control-plane SigV4 service name is iot. Pass Authorization, x-amz-date, and x-amz-content-sha256 from an upstream signer via MQTT JSON placeholders. Prefer Hub secrets for AWS keys — never commit them into the .lot.

Prefer Hub secrets for AWS keys used by an upstream SigV4 signer.

Basic Syntax

# Coreflux REST_API template — AWS IoT Core curated slice
# Auth: SigV4 via {value.json.authorization}, {value.json.x_amz_date},
#       {value.json.x_amz_content_sha256}
# BASE_ADDRESS: https://iot.eu-west-1.amazonaws.com (control plane)

DEFINE CONNECTOR AwsIotCoreRestApi WITH TYPE REST_API
    ADD REST_API_CONFIG
        WITH BASE_ADDRESS "https://iot.eu-west-1.amazonaws.com"
        WITH ENABLE_CLIENT "true"
        WITH USE_SSL "true"
        WITH REQUEST_TIMEOUT '60'
        WITH DEFAULT_CONTENT_TYPE "application/json"
    ADD EVENT ListThings
        WITH SOURCE_TOPIC "cloud-iot/aws-iot-core/things/list"
        WITH DESTINATION_TOPIC "cloud-iot/aws-iot-core/things/list/response"
        WITH METHOD "GET"
        WITH ENDPOINT "/things?maxResults={value.json.max_results}"
        WITH HEADERS
            ADD "Accept" "application/json"
            ADD "Authorization" "{value.json.authorization}"
            ADD "x-amz-date" "{value.json.x_amz_date}"
            ADD "x-amz-content-sha256" "{value.json.x_amz_content_sha256}"
    ADD EVENT CreateJob
        WITH SOURCE_TOPIC "cloud-iot/aws-iot-core/jobs/create"
        WITH DESTINATION_TOPIC "cloud-iot/aws-iot-core/jobs/create/response"
        WITH METHOD "PUT"
        WITH ENDPOINT "/jobs/{value.json.job_id}"
        WITH HEADERS
            ADD "Accept" "application/json"
            ADD "Content-Type" "application/json"
            ADD "Authorization" "{value.json.authorization}"
            ADD "x-amz-date" "{value.json.x_amz_date}"
            ADD "x-amz-content-sha256" "{value.json.x_amz_content_sha256}"
        WITH BODY "{payload}"
    ADD EVENT GetThingShadow
        WITH SOURCE_TOPIC "cloud-iot/aws-iot-core/shadow/get"
        WITH DESTINATION_TOPIC "cloud-iot/aws-iot-core/shadow/get/response"
        WITH METHOD "GET"
        WITH ENDPOINT "/things/{value.json.thing_name}/shadow"
        WITH HEADERS
            ADD "Accept" "application/json"
            ADD "Authorization" "{value.json.authorization}"
            ADD "x-amz-date" "{value.json.x_amz_date}"
            ADD "x-amz-content-sha256" "{value.json.x_amz_content_sha256}"
    ADD EVENT UpdateThingShadow
        WITH SOURCE_TOPIC "cloud-iot/aws-iot-core/shadow/update"
        WITH DESTINATION_TOPIC "cloud-iot/aws-iot-core/shadow/update/response"
        WITH METHOD "POST"
        WITH ENDPOINT "/things/{value.json.thing_name}/shadow"
        WITH HEADERS
            ADD "Accept" "application/json"
            ADD "Content-Type" "application/json"
            ADD "Authorization" "{value.json.authorization}"
            ADD "x-amz-date" "{value.json.x_amz_date}"
            ADD "x-amz-content-sha256" "{value.json.x_amz_content_sha256}"
        WITH BODY "{payload}"
    ADD EVENT PublishTopic
        WITH SOURCE_TOPIC "cloud-iot/aws-iot-core/topics/publish"
        WITH DESTINATION_TOPIC "cloud-iot/aws-iot-core/topics/publish/response"
        WITH METHOD "POST"
        WITH ENDPOINT "/topics/{value.json.topic}?qos={value.json.qos}"
        WITH HEADERS
            ADD "Accept" "application/json"
            ADD "Content-Type" "application/json"
            ADD "Authorization" "{value.json.authorization}"
            ADD "x-amz-date" "{value.json.x_amz_date}"
            ADD "x-amz-content-sha256" "{value.json.x_amz_content_sha256}"
        WITH BODY "{payload}"

Configuration

Setting	Value
Connector name	`AwsIotCoreRestApi`
Type	`REST_API` (client)
BASE_ADDRESS	`https://iot.eu-west-1.amazonaws.com` (control plane; change region as needed)
Topic prefix	`cloud-iot/aws-iot-core/...`
Default Content-Type	`application/json`
Auth	SigV4 headers from MQTT placeholders
Status	Technical preview — needs AWS keys (+ data endpoint for Publish)

MQTT topics

Event	Source	Response
ListThings	`cloud-iot/aws-iot-core/things/list`	`.../things/list/response`
CreateJob	`cloud-iot/aws-iot-core/jobs/create`	`.../jobs/create/response`
GetThingShadow	`cloud-iot/aws-iot-core/shadow/get`	`.../shadow/get/response`
UpdateThingShadow	`cloud-iot/aws-iot-core/shadow/update`	`.../shadow/update/response`
PublishTopic	`cloud-iot/aws-iot-core/topics/publish`	`.../topics/publish/response`

Auth details

Sign each request with AWS Signature Version 4 using the correct service name (iot on control plane; iotdevicegateway on data-plane Publish).
Map signed values into MQTT JSON: authorization, x_amz_date, x_amz_content_sha256 (and optional STS session token).
Store AWS_ACCESS_KEY_ID / AWS_SECRET_ACCESS_KEY as Hub secrets for the upstream signer — never in the deployable .lot.

REST API Connectors
Amazon S3 (same SigV4 placeholder pattern)
AWS IoT ListThings
AWS IoT CreateJob
Device Shadow REST API
HTTPS publish

Last modified on October 25, 2026

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