Summary

Adds axios.query() and axios.queryForm() as shorthand methods for the QUERY HTTP method (RFC draft-ietf-httpbis-safe-method-w-body).

QUERY is a safe, idempotent method like GET but allows a request body — ideal for complex queries that don't fit in URL parameters.

Usage

// Send a QUERY request with a JSON body
const { data } = await axios.query('/search', {
  filter: { status: 'active', tags: ['urgent', 'open'] },
  limit: 50,
});

// With multipart/form-data
await axios.queryForm('/search', { filter: 'active' });

// Using generic config
await axios({ method: 'query', url: '/search', data: { q: 'test' } });

Changes

Testing

• axios.query() sends QUERY request with JSON body
• axios.queryForm() sends QUERY request with multipart/form-data
• axios({ method: 'query' }) generic syntax works
• Content-Type defaults applied correctly
• API existence checks for both static and instance methods
• All 308 unit tests pass, lint clean

Closes #5465

Summary by cubic

Adds support for the QUERY HTTP method to axios via axios.query() and axios.queryForm(). Enables safe, idempotent requests with a body for complex queries.

Description

• Adds query to methods-with-data; generates query/queryForm on static and instance APIs.
• Includes query in headers flattening, defaults init, and content-type handling.
• Updates TypeScript types in index.d.ts and index.d.cts with 'query' | 'QUERY' and new methods.
• Works with axios({ method: 'query' }); no breaking changes.
• Docs: add API reference and examples for query/queryForm. Closes Add the QUERY HTTP method #5465.

Testing

• Added tests/unit/core/query-method.test.js for JSON body, queryForm multipart, content-type defaults, and generic config path.
• Updated tests/unit/api.test.js to check query and queryForm exist on static and instance APIs.
• All existing tests pass locally.

^{Written for commit 8ed320c. Summary will update on new commits.}