Technical guide
Start logging in .NET with ILogger and providers
Use message templates and log levels with Microsoft.Extensions.Logging, select providers, and verify structured fields before collection.
Technical guide
Moving from ELK to OpenObserve: queries, historical data, and payback
Evaluate ELK migration by document IDs, field types, nested-query semantics, alert parity, historical backfill, and the cost of running both systems during the transition.
Technical guide
Django error handling: views, middleware, and validation
Handle Django errors with clear HTTP semantics, domain exceptions, safe middleware responses, and form or serializer validation.
Technical guide
NestJS error handling: filters, timeouts, and validation
Build a consistent NestJS HTTP error contract with custom exceptions, safe filters, validation, RxJS timeouts, and an active throttling guard.
Technical guide
Configure FastAPI logging with request context and JSON output
Configure Python and Uvicorn loggers, add ASGI request logging, preserve exception tracebacks, and validate structured logs and trace correlation in Guance.
Technical guide
Build a CRUD API with Fastify, Prisma, and SQLite
Create a blog API with Fastify route schemas, Prisma database operations, validated IDs, explicit response schemas, and error handling that preserves real failures.
Technical guide
How to configure Flask logging for production
Configure Flask log levels, handlers, request IDs, exception tracebacks, and JSON output, then verify collection and trace correlation in Guance.
Technical guide
Add request and trace context to Go logs with slog
Compare explicit loggers, context-carried loggers, and context-aware handlers, then add active OpenTelemetry trace IDs and validate correlation in Guance.
Technical guide
Structured logging in Go with log/slog
Configure Go slog handlers, typed attributes, request context, dynamic levels, and error logging, then validate JSON fields before sending them to Guance.
Technical guide
GraphQL in Django: queries, mutations, and permissions
Build a Django GraphQL API with Graphene-Django, bounded queries, exact decimal prices, staff-only mutations, and explicit authorization.
Technical guide
Bring Guance incident analysis into your team's group chat
Connect a Guance Agent to an on-call group, route alert analysis to the right conversation, and review the evidence before taking action.
Technical guide
Build a blog API with Fastify, JSON Schema, and SQLite
Create a runnable Fastify blog API with SQLite, static files, schema validation, CRUD routes, lifecycle hooks, and structured error handling.