/Knowledge/sources/honojs__hono/llms-full/validation-manual-validator--part-04--21f8a7e62c2b.md
Validation: Manual validator (part 04) - hono-docs
Validation: Manual validator (part 04) Source evidence: /Sources/honojs hono/provenance.md Canonical citation: https://hono.dev/llms full.txt manual validato...
Validation: Manual validator (part 04)
Source evidence: /Sources/honojs__hono/provenance.md Canonical citation: https://hono.dev/llms-full.txt#manual-validator
Summary
::: ::: warning When you validate header, you need to use lowercase name as the key. If you want to validate the Idempotency-Key header, you need to use idempotency-key as the key.
Content
:::
::: warning
When you validate header, you need to use lowercase name as the key.
If you want to validate the Idempotency-Key header, you need to use idempotency-key as the key.
Metadata
{
"chunk_index": 3,
"citation": "https://hono.dev/llms-full.txt#manual-validator",
"coverage_role": "overview",
"qualified_title": "Hono / llms-full / Validation > Manual validator (4)",
"retrieved_at": "2026-07-02T05:51:01Z",
"section_index": 101,
"source_id": "/honojs/hono",
"source_type": "llms_full",
"target_label": "llms-full",
"title": "Validation: Manual validator (part 04)",
"upstream_url": "https://hono.dev/llms-full.txt",
"version": "2026"
}
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