JSONPlaceholder REST API

Technical Preview

Overview

JSONPlaceholder is a free fake REST API. Use it to exercise Coreflux TYPE REST_API client connectors against posts, comments, users, and todos with no API key.

GET /posts/1 and GET /users/1 return HTTP 200. POST /posts returns HTTP 201 with a fake id. Nothing is stored.

Basic Syntax

# Coreflux REST_API template — JSONPlaceholder
# Generated from OpenAPI; credentials are placeholders only.
# Docs: https://docs.coreflux.org/latest/lot-language/routes/rest-api-routes

DEFINE ROUTE JsonplaceholderRestApi WITH TYPE REST_API
    ADD REST_API_CONFIG
        WITH BASE_ADDRESS "https://jsonplaceholder.typicode.com"
        WITH ENABLE_CLIENT "true"
        WITH USE_SSL "true"
        WITH REQUEST_TIMEOUT '30'
        WITH DEFAULT_CONTENT_TYPE "application/json"
        # Optional: WITH USERNAME "YOUR_USER" / WITH PASSWORD GET SECRET "APP_PASSWORD"
    ADD EVENT Listposts
        WITH SOURCE_TOPIC "integrations/jsonplaceholder/request/Listposts"
        WITH DESTINATION_TOPIC "integrations/jsonplaceholder/response/Listposts"
        WITH METHOD "GET"
        WITH ENDPOINT "/posts"
        WITH HEADERS
            ADD "Accept" "application/json"
            ADD "Authorization" "Bearer {value.json.api_token}"
    ADD EVENT Createpost
        WITH SOURCE_TOPIC "integrations/jsonplaceholder/request/Createpost"
        WITH DESTINATION_TOPIC "integrations/jsonplaceholder/response/Createpost"
        WITH METHOD "POST"
        WITH ENDPOINT "/posts"
        WITH HEADERS
            ADD "Content-Type" "application/json"
            ADD "Authorization" "Bearer {value.json.api_token}"
        WITH BODY "{payload}"
    ADD EVENT Getpost
        WITH SOURCE_TOPIC "integrations/jsonplaceholder/request/Getpost"
        WITH DESTINATION_TOPIC "integrations/jsonplaceholder/response/Getpost"
        WITH METHOD "GET"
        WITH ENDPOINT "/posts/{value.json.id}"
        WITH HEADERS
            ADD "Accept" "application/json"
            ADD "Authorization" "Bearer {value.json.api_token}"
    ADD EVENT Getpostcomments
        WITH SOURCE_TOPIC "integrations/jsonplaceholder/request/Getpostcomments"
        WITH DESTINATION_TOPIC "integrations/jsonplaceholder/response/Getpostcomments"
        WITH METHOD "GET"
        WITH ENDPOINT "/posts/{value.json.id}/comments"
        WITH HEADERS
            ADD "Accept" "application/json"
            ADD "Authorization" "Bearer {value.json.api_token}"
    ADD EVENT Listusers
        WITH SOURCE_TOPIC "integrations/jsonplaceholder/request/Listusers"
        WITH DESTINATION_TOPIC "integrations/jsonplaceholder/response/Listusers"
        WITH METHOD "GET"
        WITH ENDPOINT "/users"
        WITH HEADERS
            ADD "Accept" "application/json"
            ADD "Authorization" "Bearer {value.json.api_token}"
    ADD EVENT Getuser
        WITH SOURCE_TOPIC "integrations/jsonplaceholder/request/Getuser"
        WITH DESTINATION_TOPIC "integrations/jsonplaceholder/response/Getuser"
        WITH METHOD "GET"
        WITH ENDPOINT "/users/{value.json.id}"
        WITH HEADERS
            ADD "Accept" "application/json"
            ADD "Authorization" "Bearer {value.json.api_token}"
    ADD EVENT Listtodos
        WITH SOURCE_TOPIC "integrations/jsonplaceholder/request/Listtodos"
        WITH DESTINATION_TOPIC "integrations/jsonplaceholder/response/Listtodos"
        WITH METHOD "GET"
        WITH ENDPOINT "/todos"
        WITH HEADERS
            ADD "Accept" "application/json"
            ADD "Authorization" "Bearer {value.json.api_token}"
    ADD EVENT Listcomments
        WITH SOURCE_TOPIC "integrations/jsonplaceholder/request/Listcomments"
        WITH DESTINATION_TOPIC "integrations/jsonplaceholder/response/Listcomments"
        WITH METHOD "GET"
        WITH ENDPOINT "/comments"
        WITH HEADERS
            ADD "Accept" "application/json"
            ADD "Authorization" "Bearer {value.json.api_token}"

Events

Event	Method	Endpoint	Request topic	Response topic
Listposts	GET	`/posts`	`integrations/jsonplaceholder/request/Listposts`	`integrations/jsonplaceholder/response/Listposts`
Createpost	POST	`/posts`	`integrations/jsonplaceholder/request/Createpost`	`integrations/jsonplaceholder/response/Createpost`
Getpost	GET	`/posts/{value.json.id}`	`integrations/jsonplaceholder/request/Getpost`	`integrations/jsonplaceholder/response/Getpost`
Getpostcomments	GET	`/posts/{value.json.id}/comments`	`integrations/jsonplaceholder/request/Getpostcomments`	`integrations/jsonplaceholder/response/Getpostcomments`
Listusers	GET	`/users`	`integrations/jsonplaceholder/request/Listusers`	`integrations/jsonplaceholder/response/Listusers`
Getuser	GET	`/users/{value.json.id}`	`integrations/jsonplaceholder/request/Getuser`	`integrations/jsonplaceholder/response/Getuser`
Listtodos	GET	`/todos`	`integrations/jsonplaceholder/request/Listtodos`	`integrations/jsonplaceholder/response/Listtodos`
Listcomments	GET	`/comments`	`integrations/jsonplaceholder/request/Listcomments`	`integrations/jsonplaceholder/response/Listcomments`

Auth

No credentials. The template still includes Authorization: Bearer {value.json.api_token}. Omit the token for demos. If you retarget BASE_ADDRESS to a private clone, load the secret with GET SECRET upstream. Never commit tokens.

Try it

Add the connector on a lab broker.
Publish {"id": 1} to integrations/jsonplaceholder/request/Getpost.
Subscribe to integrations/jsonplaceholder/response/Getpost.
Create: publish a JSON body such as {"title":"coreflux","body":"demo","userId":1} to integrations/jsonplaceholder/request/Createpost (the connector forwards {payload}).
Users: publish {"id": 1} to integrations/jsonplaceholder/request/Getuser.

Checked against the public API: GET /posts/1 and GET /users/1 returned HTTP 200; POST /posts returned HTTP 201. Broker MQTT round-trip was not run. lot_lint reported no findings on JsonplaceholderRestApi.

Quick Start

Coreflux MQTT Broker

LoT Language

Coreflux HUB

VS Code - LoT Notebooks

Coreflux Portal

Using AI with Coreflux

Product Updates

Overview

Basic Syntax

Events

Auth

Try it

​Overview

​Basic Syntax

​Events

​Auth

​Try it

​Related

Overview

Basic Syntax

Events

Auth

Try it

Related