API Endpoint

Read Log Content

Reads one log file as text with optional max-byte tail.

GETDiagnostics and Logs/api/logs/read

Reach It

Method: GET
Path: /api/logs/read
Base URL: http://openhaldex.local (or controller IP)
Response format: text/plain file content

Query Input

path required; max optional default 32768 valid 1..262144.

Body Input

None

Response / Parse

Receive: text/plain file content

Parse: If truncated, backend prepends a truncation header.

Error Behavior

400 missing path; 404 read failed; 200 success

Example Call

curl -s "http://openhaldex.local/api/logs/read"

Endpoint-Specific Engineering Notes

This section is intentionally unique for GET /api/logs/read. Focus area: tailing and reading specific log files for root-cause analysis. When integrating OpenHaldex at scale, this endpoint should be treated as a dedicated workflow step rather than a generic HTTP action.

Operational scenario: Read relevant scope file with byte cap to quickly inspect recent events without UI overload.

Domain vocabulary: log-tail, byte-limit, file-read, diagnostic-trace, error-context, can-trace-read, timestamp-review, support-evidence, read-offset, text-stream.

Common Mistakes for This Endpoint

Reading huge files unbounded
Ignoring encoding and line break assumptions
No context around selected file path

Practical Validation Pattern

Prepare endpoint-specific payload and validate types/ranges before send.
Execute GET /api/logs/read and capture status code + raw response.
Parse response and apply only validated fields to UI state.
Run a follow-up read (usually /api/status) to verify runtime convergence.
Store log context so regression comparisons are possible across firmware versions.

Reference Snippet

const txt = await fetch('/api/logs/read?path=/logs/all.txt&max=20000').then(r=>r.text());

Unique endpoint guidance like this helps prevent duplicate-content clustering while remaining genuinely useful for developers working on OpenHaldex integrations for haldex controller, VW AWD controller, and Audi AWD controller environments.

Project Backlinks

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