### Use the `RequestValidationError` body { #use-the-requestvalidationerror-body }

The `RequestValidationError` contains the `body` it received with invalid data.

You could use it while developing your app to log the body and debug it, return it to the user, etc.

{* ../../docs_src/handling_errors/tutorial005.py hl[14] *}

Now try sending an invalid item like:

```JSON
{
  "title": "towel",
  "size": "XL"
}
```

     * objects in the cache before shutdown.
     */
    @PreDestroy
    public void destroy() {
        if (logger.isDebugEnabled()) {
            logger.debug("cache stats: {}", statsCache.stats());
        }
        statsCache.asMap().entrySet().stream().forEach(e -> {
            final StatsObject data = e.getValue();
            final Long begin = data.remove(BEGIN_KEY);

tication-provider-3a527672cf33 title: FastAPI — Google as an external authentication provider - author: William Hayes author_link: https://medium.com/@williamhayes link: https://medium.com/@williamhayes/fastapi-starlette-debug-vs-prod-5f7561db3a59 title: FastAPI/Starlette debug vs prod - author: Mukul Mantosh author_link: https://x.com/MantoshMukul link: https://www.jetbrains.com/pycharm/guide/tutorials/fastapi-aws-kubernetes/ title: Developing FastAPI Application using K8s & AWS - author: KrishNa...

                        zos.putNextEntry(entry);
                        final long len = Files.copy(filePath, zos);
                        if (logger.isDebugEnabled()) {
                            logger.debug("{}: {}", filePath.getFileName(), len);
                        }
                    } catch (final IOException e) {
                        logger.warn("Failed to access {}", filePath, e);
                    }

        emptyMappingFile.manager(dictionaryManager);

        PagingList<CharMappingItem> result = emptyMappingFile.selectList(0, 10);

        // Debug: print what we actually got
        if (result.size() > 0) {
            for (CharMappingItem item : result) {
                System.out.println("Unexpected item: " + item.toLineString());
            }
        }

    void resolveWeak() {
        if (this.origin_server != null) {
            try {
                resolve(this.origin_server, this.origin_ctx);
            } catch (final IOException ioe) {
                log.debug("Failed to resolve SID", ioe);
            } finally {
                this.origin_server = null;
                this.origin_ctx = null;
            }
        }
    }

    /**

     * The cache is configured with a maximum size of 100 entries and expires after 10 minutes.
     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initialize {}", this.getClass().getSimpleName());
        }
        crawlingConfigCache = CacheBuilder.newBuilder().maximumSize(100).expireAfterWrite(10, TimeUnit.MINUTES).build();
    }

    /**

              [INFO] Validating units:
              [INFO]    Ignored 53 units with compilation errors in first pass.
              [INFO] Compile with -strict or with -logLevel set to TRACE or DEBUG to see all errors.

            Turning up the log level, we see that GWT is trying to compile classes from other
            packages, like RangeTest. The reason for this is that GWT doesn't distinguish between

                    } catch (final SmbException e) {
                        if (e.getNtStatus() != 0xC0000011) {
                            throw e;
                        }
                        log.debug("Reached end of file", e);
                        n = -1;
                    }
                } else {
                    final SmbComReadAndX request = new SmbComReadAndX(th.getConfig(), fh.getFid(), this.fp, r, null);

							return;
						}
						const toCopy = src.subarray(0, dst.length);
						dst.set(toCopy);
						setInt64(sp + 40, toCopy.length);
						this.mem.setUint8(sp + 48, 1);
					},

					"debug": (value) => {
						console.log(value);
					},
				}
			};
		}

		async run(instance) {
			if (!(instance instanceof WebAssembly.Instance)) {