Gin Panic Recovery Middleware Returning Empty 500 Response
Gin's built-in Recovery() middleware correctly prevents a panic from crashing the entire server, but its default behavior returns a 500 status with no response...
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Nginx client_max_body_size, Fixing "413 Request Entity Too Large"
A 413 error means Nginx itself rejected the request before it ever reached your application, because the request body exceeded the configured...
Nginx Gzip Compression Not Working
When Nginx's gzip compression doesn't seem to apply — response sizes stay the same, and the expected Content-Encoding: gzip header is missing — it's usually...
Nginx Location Block Priority, Why the Wrong One Matches
When a request gets handled by an unexpected location block despite a seemingly more specific one existing in the config, the cause is almost always a...
Nginx Serving Wrong Site for the Domain (Default Server Block Issue)
When Nginx serves the wrong site for a domain — showing a different project's content, or a generic default page, instead of what you configured — the cause is...
Nginx "Worker_connections Exceeded" Error Fix
Hitting Nginx's worker_connections limit means each worker process has reached the maximum number of simultaneous connections it's configured to handle — this...
Gin Binding JSON Returns Empty Struct
When Gin's JSON binding produces a struct with all fields at their zero values, despite the request clearly containing valid JSON, it's almost always due to a...
Gin Middleware Not Running in Expected Order
Gin middleware runs in the order it's registered, and confusion about execution order almost always comes down to either registration happening in a different...
Nginx 502 Bad Gateway With Docker Container
A 502 Bad Gateway from Nginx in a Docker setup almost always means Nginx successfully received the request but couldn't get a valid response from the upstream...