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feat: improve db error logging with context
- include error name, SQL, and response preview in error logs
- local db errors now show: error name + sql
- turso errors now show: status + sql + response body preview
makes debugging db errors much easier
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
+13
-7
+10
-4
backend/src/db/Client.zig
+10
-4
backend/src/db/Client.zig
···
150
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.payload = body,
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.response_writer = &response_body.writer,
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}) catch |err| {
153
-
logfire.err("turso request failed: {}", .{err});
153
+
logfire.err("db.query http failed: {s} | sql: {s}", .{ @errorName(err), truncateSql(sql) });
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return error.HttpError;
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};
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if (res.status != .ok) {
158
-
logfire.err("turso error: {}", .{res.status});
158
+
const resp_text = response_body.toOwnedSlice() catch "";
159
+
defer if (resp_text.len > 0) self.allocator.free(resp_text);
160
+
const resp_preview = if (resp_text.len > 200) resp_text[0..200] else resp_text;
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+
logfire.err("db.query turso error: {} | sql: {s} | response: {s}", .{ res.status, truncateSql(sql), resp_preview });
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return error.TursoError;
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}
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···
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.payload = body,
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.response_writer = &response_body.writer,
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}) catch |err| {
200
-
logfire.err("turso batch request failed: {}", .{err});
203
+
logfire.err("db.batch http failed: {s} | first_sql: {s}", .{ @errorName(err), first_sql });
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return error.HttpError;
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};
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if (res.status != .ok) {
205
-
logfire.err("turso batch error: {}", .{res.status});
208
+
const resp_text = response_body.toOwnedSlice() catch "";
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+
defer if (resp_text.len > 0) self.allocator.free(resp_text);
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+
const resp_preview = if (resp_text.len > 200) resp_text[0..200] else resp_text;
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+
logfire.err("db.batch turso error: {} | first_sql: {s} | response: {s}", .{ res.status, first_sql, resp_preview });
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return error.TursoError;
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}
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+3
-3
backend/src/db/LocalDb.zig
+3
-3
backend/src/db/LocalDb.zig
···
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const c = self.conn orelse return error.NotOpen;
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const rows = c.rows(sql, args) catch |e| {
270
-
logfire.err("local db query error: {}", .{e});
270
+
logfire.err("db.local.query failed: {s} | sql: {s}", .{ @errorName(e), truncateSql(sql) });
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return e;
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};
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return .{ .inner = rows };
···
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const c = self.conn orelse return error.NotOpen;
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const row = c.row(sql, args) catch |e| {
288
-
logfire.err("local db queryOne error: {}", .{e});
288
+
logfire.err("db.local.queryOne failed: {s} | sql: {s}", .{ @errorName(e), truncateSql(sql) });
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return e;
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};
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if (row) |r| {
···
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const c = self.conn orelse return error.NotOpen;
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c.exec(sql, args) catch |e| {
304
-
std.debug.print("local db exec error: {}\n", .{e});
304
+
logfire.err("db.local.exec failed: {s} | sql: {s}", .{ @errorName(e), truncateSql(sql) });
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return e;
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};
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}