Jaehyeon Kim
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Guide to Building Integrated Web Applications with FastAPI and NiceGUI

Guide to Building Integrated Web Applications with FastAPI and NiceGUI
November 19, 202511 min read DevelopmentDockerFastAPINiceGUIPostgreSQLPydanticPythonSoftware ArchitectureSQLModel

FastAPI and NiceGUI served from one Python process give a backend API and a web UI in a single codebase, compared here with React and with Streamlit.

Read More: Guide to Building Integrated Web Applications with FastAPI and NiceGUI

Next.js Dashboard - Realtime Dashboard with FastAPI, Streamlit and Next.js Part 3

Next.js Dashboard - Realtime Dashboard with FastAPI, Streamlit and Next.js Part 3
March 4, 20258 min read Development Realtime Dashboard With FastAPI, Streamlit and Next.jsApache EChartsNext.jsReactWebSocket

Next.js and React with Apache ECharts show the same live order and revenue metrics, reading from the FastAPI WebSocket server in the browser.

Read More: Next.js Dashboard - Realtime Dashboard with FastAPI, Streamlit and Next.js Part 3

Streamlit Dashboard - Realtime Dashboard with FastAPI, Streamlit and Next.js Part 2

Streamlit Dashboard - Realtime Dashboard with FastAPI, Streamlit and Next.js Part 2
February 25, 20257 min read Development Realtime Dashboard With FastAPI, Streamlit and Next.jsApache EChartsPythonStreamlitWebSocket

Streamlit and Apache ECharts draw a live sales dashboard that reads order counts and revenue by country from a FastAPI WebSocket server.

Read More: Streamlit Dashboard - Realtime Dashboard with FastAPI, Streamlit and Next.js Part 2

Realtime Dashboard with FastAPI, Streamlit and Next.js - Part 1 Data Producer

Realtime Dashboard with FastAPI, Streamlit and Next.js - Part 1 Data Producer
February 18, 202510 min read Development Realtime Dashboard With FastAPI, Streamlit and Next.jsDockerFastAPIPostgreSQLPythonWebSocket

A Python generator loads theLook eCommerce data into PostgreSQL, and a FastAPI WebSocket server queries it on a timer to serve live dashboards.

Read More: Realtime Dashboard with FastAPI, Streamlit and Next.js - Part 1 Data Producer

Setup Local Development Environment for Apache Flink and Spark Using EMR Container Images

Setup Local Development Environment for Apache Flink and Spark Using EMR Container Images
December 7, 202317 min read Data-Engineering Data-Streaming DevelopmentAmazon EMRApache FlinkApache KafkaApache SparkAWSDocker

A local Flink and Spark environment built from EMR container images, where Flink ingests data in real time and Spark queries it via the Glue Data Catalog.

Read More: Setup Local Development Environment for Apache Flink and Spark Using EMR Container Images

Serverless Application Model (SAM) for Data Professionals

Serverless Application Model (SAM) for Data Professionals
July 18, 20228 min read DevelopmentAmazon S3AWSAWS LambdaAWS SAMPython

Build a serverless data processing app with AWS SAM. A Lambda function runs when an S3 object is created and gets its third party packages from a layer.

Read More: Serverless Application Model (SAM) for Data Professionals

Simplify Your Development on AWS with Terraform

Simplify Your Development on AWS with Terraform
February 6, 202213 min read DevelopmentAmazon AuroraAWSPostgreSQLSoftEther VPNTerraform

Manage AWS development infrastructure with Terraform, creating an Aurora PostgreSQL cluster in a private subnet reached over SoftEther VPN.

Read More: Simplify Your Development on AWS with Terraform

Yet another serverless solution for invoking AWS Lambda at a sub-minute frequency

Yet another serverless solution for invoking AWS Lambda at a sub-minute frequency
October 13, 20216 min read DevelopmentAmazon EventBridgeAmazon SQSAWSAWS LambdaNode.jsServerless Framework

Schedule an AWS Lambda function more often than once a minute, using Amazon SQS to get past the one invocation per minute limit of EventBridge rules.

Read More: Yet another serverless solution for invoking AWS Lambda at a sub-minute frequency

Adding Authorization to a Graphql API

Adding Authorization to a Graphql API
July 20, 20218 min read Development SecurityApollo ServerAuthorizationGraphQL APINode.jsOso

Add authorization to a GraphQL API with a custom directive and Oso, an open source authorization library, to control who can act on which resource.

Read More: Adding Authorization to a Graphql API

Dynamic Routing and Centralized Auth with Traefik, Python and R Example

Dynamic Routing and Centralized Auth with Traefik, Python and R Example
November 29, 20199 min read DevelopmentDockerFastAPIPythonRTraefik

Set up path-based routing with Traefik and Docker for Python and R services, then add centralized authentication with Forward Authentication.

Read More: Dynamic Routing and Centralized Auth with Traefik, Python and R Example
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Profile
Jaehyeon Kim
Jaehyeon Kim
Data Engineer | Data Streaming | Powering ML & AI in Real Time
Taxonomies
Data Streaming 70 Data Engineering 38 Development 28 Data Analysis 17 Data Integration 12 Open Source 7 Kubernetes 6 Machine Learning 5 Security 5 Data Architecture 3 Data Processing 3 Big Data 2 System Architecture 2 Web Development 2
Python 75 Apache Kafka 68 AWS 50 Docker 50 Apache Flink 34 Apache Beam 17 Apache Spark 16 Kafka Connect 15 Amazon MSK 14 AWS Lambda 14 dbt 13 Amazon EMR 11 Kubernetes 8 PyFlink 8 Kotlin 7 PostgreSQL 7 Change Data Capture (CDC) 6 Debezium 6 dynamic-des 6 Amazon DynamoDB 5 Apache Airflow 5 Discrete Event Simulation 5 Factor House Local 5 PySpark 5 Amazon API Gateway 4 Amazon Athena 4 Apache Iceberg 4 AWS Glue 4 AWS Glue Schema Registry 4 BigQuery 4 Digital Twin 4 FastAPI 4 Minikube 4 SimPy 4 Amazon EKS 3 Amazon QuickSight 3 Amazon S3 3 Apache Hudi 3 EMR on EKS 3 GCP 3 ALL 137
Kafka Development with Docker 11 Apache Beam Python Examples 10 Real Time Streaming with Kafka and Flink 7 dbt Pizza Shop Demo 6 Apache Beam Local Development with Python 5 Building Real-Time Digital Twins with dynamic-des 5 dbt for Effective Data Transformation on AWS 5 Getting Started with Real-Time Streaming in Kotlin 5 Kafka Connect for AWS Services Integration 5 Serverless Data Product 4 Data Lake Demo Using Change Data Capture 3 Getting Started with PyFlink on AWS 3 Kafka Development on Kubernetes 3 Parallel processing on single machine 3 Realtime Dashboard with FastAPI, Streamlit and Next.js 3 API development with R 2 dbt Guide for Production 2 Deploy Python Stream Processing App on Kubernetes 2 Download Stock Data 2 From Prototype to Production: Real-Time Product Recommendation with Contextual Bandits 2 ALL 24
2026 11 2025 13 2024 29 2023 39 2022 15 2021 7 2020 1 2019 5 2018 2 2017 6 2016 6 2015 15 2014 5
Posts
  • Building an Agentic Analytics System over an Iceberg Lakehouse
    Building an Agentic Analytics System over an Iceberg Lakehouse
    July 18, 2026
  • Dynamic DES v0.11.1: A Declarative API with Postgres and Redis Connectors
    Dynamic DES v0.11.1: A Declarative API with Postgres and Redis Connectors
    July 17, 2026
  • Introducing odctl: One CLI for a Local Open Data Stack
    Introducing odctl: One CLI for a Local Open Data Stack
    July 16, 2026
  • One Simulation, Two Pipelines: Batch Training and Live Inference with Dynamic DES v0.8.1
    One Simulation, Two Pipelines: Batch Training and Live Inference with Dynamic DES v0.8.1
    May 25, 2026
  • Building an Event-Driven Hybrid Digital Twin with dynamic-des
    Building an Event-Driven Hybrid Digital Twin with dynamic-des
    April 29, 2026
  • Why Digital Twins Are Rewiring Industry 4.0
    Why Digital Twins Are Rewiring Industry 4.0
    April 22, 2026
  • Building a Real-Time Industrial Digital Twin with Apache Flink and Online Machine Learning
    Building a Real-Time Industrial Digital Twin with Apache Flink and Online Machine Learning
    April 21, 2026
  • Slides as Code: Integrating Reveal.js into my Hugo Blog
    Slides as Code: Integrating Reveal.js into my Hugo Blog
    March 9, 2026
  • Productionizing an Online Product Recommender using Event Driven Architecture
    Productionizing an Online Product Recommender using Event Driven Architecture
    February 23, 2026
  • Stream Processing with Flink in Kotlin
    Stream Processing with Flink in Kotlin
    December 10, 2025
  • Building an Agentic Analytics System over an Iceberg Lakehouse
    Building an Agentic Analytics System over an Iceberg Lakehouse
    July 18, 2026
  • Dynamic DES v0.11.1: A Declarative API with Postgres and Redis Connectors
    Dynamic DES v0.11.1: A Declarative API with Postgres and Redis Connectors
    July 17, 2026
  • Introducing odctl: One CLI for a Local Open Data Stack
    Introducing odctl: One CLI for a Local Open Data Stack
    July 16, 2026
  • One Simulation, Two Pipelines: Batch Training and Live Inference with Dynamic DES v0.8.1
    One Simulation, Two Pipelines: Batch Training and Live Inference with Dynamic DES v0.8.1
    May 25, 2026
  • Current London 2026: Building End-to-End Data Lineage
    Current London 2026: Building End-to-End Data Lineage
    May 22, 2026
  • Building an Event-Driven Hybrid Digital Twin with dynamic-des
    Building an Event-Driven Hybrid Digital Twin with dynamic-des
    April 29, 2026
  • Why Digital Twins Are Rewiring Industry 4.0
    Why Digital Twins Are Rewiring Industry 4.0
    April 22, 2026
  • Building a Real-Time Industrial Digital Twin with Apache Flink and Online Machine Learning
    Building a Real-Time Industrial Digital Twin with Apache Flink and Online Machine Learning
    April 21, 2026
  • Slides as Code: Integrating Reveal.js into my Hugo Blog
    Slides as Code: Integrating Reveal.js into my Hugo Blog
    March 9, 2026
  • Productionizing an Online Product Recommender using Event Driven Architecture
    Productionizing an Online Product Recommender using Event Driven Architecture
    February 23, 2026
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Jaehyeon Kim

Data Engineer | Data Streaming | Powering ML & AI in Real Time

Copyright © 2023-2026 Jaehyeon Kim. All Rights Reserved.