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dawn li

Sep 1

7-Stage Pipeline for Multi-Source Board Books, Validation, Retries, Privacy, and Retention

#architecture #documentautomation #privacy

7 min read

dawn li

Aug 30

Customer-Support Knowledge Base Retrieval — Observability for E-commerce Reranking

#rag #observability #search

8 min read

dawn li

Aug 29

Resend, Postmark, SES Rate Limiting (A Background Job Duplicate-Send Experiment)

#email #queues #ratelimiting

7 min read

dawn li

Aug 27

Choosing Error Tracking and Structured Logs for a Node.js SaaS

#node #observability #errortracking #structuredlogging

5 min read

dawn li

Aug 26

Order Receipt Status Checks Explained — Email Events API Without Webhooks

#email #architecture #reliability

7 min read

dawn li

Aug 25

Password Reset Email Troubleshooting: How to Check a Bounced, Suppressed Recipient

#email #deliverability #security

7 min read

dawn li

Aug 23

Node.js Signup Email Economics (DKIM, SPF, DMARC, Suppression, and Warming)

#node #email #architecture

8 min read

dawn li

Aug 22

Support Routing Email APIs Explained: Custom-Domain DKIM, Suppression, and Polling

#email #saas #architecture

8 min read

dawn li

Aug 20

Property Report Notifications: User Preferences, Email/SMS Opt-Out, and Suppression

#notifications #architecture #email

8 min read

dawn li

Aug 18

Node.js Shipment Queue Fan-Out — Troubleshooting Poison Jobs with Bounded Redrive

#node #architecture #queues

7 min read

dawn li

Aug 17

Marketplace LLM JSON Extraction: Missing Fields, Nulls, and Enum Mismatch Fixes

#llm #jsonschema #extraction

6 min read

dawn li

Aug 16

Cheap Summarization API for Node.js: Splitting Long Property Text Safely

#ai #node #dataquality

7 min read

dawn li

Aug 15

Express Middleware Feature Flag Checks for 3 Node.js API Routes (Safer Rollbacks)

#node #express #featureflags

7 min read

dawn li

Aug 14

Europe-US Node.js Cron Job Failure Alerts: Healthchecks or Error Tracking?

#observability #node #healthtech

6 min read

dawn li

Aug 13

Two Shapes for Tenant Content Safety Categories Without a Dedicated Moderation Endpoint

#moderation #api #architecture #saas

7 min read

dawn li

Aug 12

Long Document API Practice for E-commerce Code Reviews with Chunking

#ai #python #summarization

8 min read

dawn li

Aug 10

Marketplace Rubrics: Reliable LLM JSON Extraction with Token Counting and Cost Control

#llm #json #marketplace

7 min read

dawn li

Aug 9

Evidence Selection ADR: PDF Semantic Search, Embeddings, Rerank, and Summarization

#rag #pdf #embeddings

7 min read

dawn li

Aug 8

Storage Controls for Async Batch LLM Jobs: Realtime API Cost and Bulk Tagging

#llm #python #architecture

7 min read

dawn li

Aug 7

Direct LLM API Failure Boundaries: SaaS Token Cost and Fallback

#llm #saas #architecture

6 min read

dawn li

Aug 5

One-Key Image Generation API Contracts for Multiple AI Models: A Storage Checklist

#ai #python #architecture

6 min read

dawn li

Aug 4

Prevent Feature Flag Retry Duplicate Writes in Rollout Toggle Endpoints

#observability #featureflags #backend

7 min read

dawn li

Aug 1

One API Key for OpenAI, Claude, and Gemini LLM Classification Routing

#ai #python #architecture

5 min read

dawn li

Jul 30

How to store AI-generated images per user in object storage and delete the old ones

#storage #objectstorage #node #python

7 min read

dawn li

Jul 28

Private avatars in a Node.js SaaS: which object storage, and how to sign downloads

#objectstorage #presignedurl #node #saas

8 min read

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dawn li

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Writing Debut

7-Stage Pipeline for Multi-Source Board Books, Validation, Retries, Privacy, and Retention

Customer-Support Knowledge Base Retrieval — Observability for E-commerce Reranking

Resend, Postmark, SES Rate Limiting (A Background Job Duplicate-Send Experiment)

Choosing Error Tracking and Structured Logs for a Node.js SaaS

Order Receipt Status Checks Explained — Email Events API Without Webhooks

Password Reset Email Troubleshooting: How to Check a Bounced, Suppressed Recipient

Node.js Signup Email Economics (DKIM, SPF, DMARC, Suppression, and Warming)

Support Routing Email APIs Explained: Custom-Domain DKIM, Suppression, and Polling

Property Report Notifications: User Preferences, Email/SMS Opt-Out, and Suppression

Node.js Shipment Queue Fan-Out — Troubleshooting Poison Jobs with Bounded Redrive

Marketplace LLM JSON Extraction: Missing Fields, Nulls, and Enum Mismatch Fixes

Cheap Summarization API for Node.js: Splitting Long Property Text Safely

Express Middleware Feature Flag Checks for 3 Node.js API Routes (Safer Rollbacks)

Europe-US Node.js Cron Job Failure Alerts: Healthchecks or Error Tracking?

Two Shapes for Tenant Content Safety Categories Without a Dedicated Moderation Endpoint

Long Document API Practice for E-commerce Code Reviews with Chunking

Marketplace Rubrics: Reliable LLM JSON Extraction with Token Counting and Cost Control

Evidence Selection ADR: PDF Semantic Search, Embeddings, Rerank, and Summarization

Storage Controls for Async Batch LLM Jobs: Realtime API Cost and Bulk Tagging

Direct LLM API Failure Boundaries: SaaS Token Cost and Fallback

One-Key Image Generation API Contracts for Multiple AI Models: A Storage Checklist

Prevent Feature Flag Retry Duplicate Writes in Rollout Toggle Endpoints

One API Key for OpenAI, Claude, and Gemini LLM Classification Routing

How to store AI-generated images per user in object storage and delete the old ones

Private avatars in a Node.js SaaS: which object storage, and how to sign downloads