feat(extension/introspection): add new extension (#1171)

examples/60_extension/extension_introspection__introspection.ts

@@ -0,0 +1,14 @@
+/**
+ * This example shows how to use the Or Throw extension to throw errors for one-off cases.
+ */
+
+import { Introspection } from '../../src/entrypoints/extensions.js'
+import { Pokemon } from '../../tests/_/schemas/pokemon/graffle/__.js'
+import { interceptAndShowUncaughtErrors, show } from '../$/show.js'
+
+interceptAndShowUncaughtErrors()
+
+const pokemon = Pokemon.create().use(Introspection())
+
+const data = await pokemon.introspect()
+show(data)

examples/__outputs__/10_transport-http/transport-http_extension_headers__dynamicHeaders.output.txt

@@ -4,7 +4,7 @@
   headers: Headers {
     accept: 'application/graphql-response+json; charset=utf-8, application/json; charset=utf-8',
     'content-type': 'application/json',
-    'x-sent-at-time': '1728318376823'
+    'x-sent-at-time': '1728323083637'
   },
   signal: undefined,
   method: 'post',

examples/__outputs__/20_output/output_envelope.output.txt

@@ -18,7 +18,7 @@
     headers: Headers {
       'content-type': 'application/graphql-response+json; charset=utf-8',
       'content-length': '142',
-      date: 'Mon, 07 Oct 2024 16:26:17 GMT',
+      date: 'Mon, 07 Oct 2024 17:44:44 GMT',
       connection: 'keep-alive',
       'keep-alive': 'timeout=5'
     },