class
Analyzer::Javascript::Astro
Overview
Astro is a filesystem-routed framework. Routes live under
src/pages/ and the URL is derived from the file path:
src/pages/index.astro → GET / src/pages/about.astro → GET /about src/pages/users/index.astro → GET /users src/pages/users/[id].astro → GET /users/{id} src/pages/[...slug].astro → GET /{slug} (catch-all) src/pages/api/users.ts → exports drive verbs
Page files (.astro, .md, .mdx, .html) are HTML pages —
always GET. API route files in src/pages/api/** (.ts, .js,
.mjs, .tsx, .jsx) export named verb handlers
(export async function GET(...), export const POST = ...).
When no explicit verb export is found we fall back to the
standard handler set (GET / POST / PUT / DELETE / PATCH) — same
heuristic the Next.js analyzer uses for catch-all handlers.
Out of scope for this first cut:
- Astro endpoints under non-conventional
src/pages/roots (the path detection is hard-coded to/src/pages/). - Per-handler request-helper scanning — Astro endpoints use
standard
Request(request.headers.get(...),request.json(),await request.formData()) but resolving reads accurately needs cross-call value tracking. Path placeholders still surface via the optimizer.
Defined in:
analyzer/analyzers/javascript/astro.crConstant Summary
-
API_EXTENSIONS =
[".ts", ".js", ".mjs", ".tsx", ".jsx"] -
EXPORT_BRACE_RES =
HTTP_METHODS.map do |m| {m, /export\s+\{\s*[^}]*\b#{m}\b[^}]*\}/} end.to_h -
EXPORT_CONST_RES =
HTTP_METHODS.map do |m| {m, /export\s+(?:const|let|var)\s+#{m}\b\s*(?::[^=]+)?=/} end.to_h -
EXPORT_FUNCTION_RES =
HTTP_METHODS.map do |m| {m, /export\s+(?:async\s+)?function\s+#{m}\b/} end.to_h -
Look for explicit verb exports first (
export const GET = .../export async function POST() {}), then fall back to the cross-method catch-all set. Compiled once per verb — interpolated regex literals would otherwise be rebuilt (full PCRE2 compile) for every method on every file. -
EXTENSIONS =
PAGE_EXTENSIONS + API_EXTENSIONS -
FALLBACK_API_METHODS =
["GET", "POST", "PUT", "DELETE", "PATCH"] -
Lowest-cost defaults for endpoints whose handler doesn't advertise its verbs explicitly. Mirrors the Next.js fallback.
-
HTTP_METHODS =
["GET", "POST", "PUT", "DELETE", "PATCH", "HEAD", "OPTIONS"] -
PAGE_EXTENSIONS =
[".astro", ".md", ".mdx", ".html"]