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Body Size Guard

Body Size Guard in Solvix prevents sending excessively large request payloads.

It protects your application from memory issues, abuse, and unexpected large uploads.

Why Body Size Guard?​

In production systems:

  • Large payloads can crash services
  • Unexpected data may increase costs
  • APIs often have strict size limits

Body Size Guard ensures requests stay within safe limits.

Basic usage​

const client = createClient({
  security: {
    maxBodySize: 1024 * 1024, // 1MB
  },
});

How it works​

  1. Request body is prepared
  2. Size is calculated
  3. If size exceeds limit → request is blocked

Example​

await client.post("/upload", {
  body: largeData,
});

If largeData exceeds limit:

Error: Request body size exceeded

Supported body types​

  • JSON
  • FormData
  • Blob
  • String
  • ArrayBuffer

Use cases​

File uploads​

Prevent oversized uploads

API protection​

Avoid sending huge payloads

Cost control​

Reduce bandwidth usage

Error handling​

try {
  await client.post("/upload", { body: data });
} catch (error) {
  console.log(error.message);
}

Best practices​

  • Set reasonable limits (e.g. 1MB–10MB)
  • Adjust per API requirements
  • Combine with response size guard

Integration​

Works with:

  • Header Sanitization
  • Response Size Guard
  • Security Layer

Summary​

Body Size Guard protects your system from oversized request payloads and improves reliability.