diff --git a/src/core/plugins/json-schema-2020-12/index.js b/src/core/plugins/json-schema-2020-12/index.js
index a92bfa8eef3..aceee751acf 100644
--- a/src/core/plugins/json-schema-2020-12/index.js
+++ b/src/core/plugins/json-schema-2020-12/index.js
@@ -50,7 +50,10 @@ import {
   createXMLExample,
   memoizedSampleFromSchema,
   memoizedCreateXMLExample,
-} from "./samples-extensions/fn"
+  encoderAPI,
+  mediaTypeAPI,
+  formatAPI,
+} from "./samples-extensions/fn/index"
 import { JSONSchemaDeepExpansionContext } from "./context"
 import { useFn, useConfig, useComponent, useIsExpandedDeeply } from "./hooks"
 import { withJSONSchemaContext } from "./hoc"
@@ -113,6 +116,9 @@ const JSONSchema202012Plugin = () => ({
       useIsExpandedDeeply,
       sampleFromSchema,
       sampleFromSchemaGeneric,
+      sampleEncoderAPI: encoderAPI,
+      sampleFormatAPI: formatAPI,
+      sampleMediaTypeAPI: mediaTypeAPI,
       createXMLExample,
       memoizedSampleFromSchema,
       memoizedCreateXMLExample,
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/api/encoderAPI.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/api/encoderAPI.js
new file mode 100644
index 00000000000..4d4ee996d12
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/api/encoderAPI.js
@@ -0,0 +1,20 @@
+/**
+ * @prettier
+ */
+
+import EncoderRegistry from "core/plugins/json-schema-2020-12/samples-extensions/fn/class/EncoderRegistry"
+
+const registry = new EncoderRegistry()
+
+const encoderAPI = (encodingName, encoder) => {
+  if (typeof encoder === "function") {
+    return registry.register(encodingName, encoder)
+  } else if (encoder === null) {
+    return registry.unregister(encodingName)
+  }
+
+  return registry.get(encodingName)
+}
+encoderAPI.getDefaults = () => registry.defaults
+
+export default encoderAPI
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/api/formatAPI.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/api/formatAPI.js
new file mode 100644
index 00000000000..9d1cd6b1d63
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/api/formatAPI.js
@@ -0,0 +1,19 @@
+/**
+ * @prettier
+ */
+
+import Registry from "../class/Registry"
+
+const registry = new Registry()
+
+const formatAPI = (format, generator) => {
+  if (typeof generator === "function") {
+    return registry.register(format, generator)
+  } else if (generator === null) {
+    return registry.unregister(format)
+  }
+
+  return registry.get(format)
+}
+
+export default formatAPI
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/api/mediaTypeAPI.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/api/mediaTypeAPI.js
new file mode 100644
index 00000000000..9fac528bcc4
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/api/mediaTypeAPI.js
@@ -0,0 +1,27 @@
+/**
+ * @prettier
+ */
+
+import MediaTypeRegistry from "../class/MediaTypeRegistry"
+
+const registry = new MediaTypeRegistry()
+
+const mediaTypeAPI = (mediaType, generator) => {
+  if (typeof generator === "function") {
+    return registry.register(mediaType, generator)
+  } else if (generator === null) {
+    return registry.unregister(mediaType)
+  }
+
+  const mediaTypeNoParams = mediaType.split(";").at(0)
+  const topLevelMediaType = `${mediaTypeNoParams.split("/").at(0)}/*`
+
+  return (
+    registry.get(mediaType) ||
+    registry.get(mediaTypeNoParams) ||
+    registry.get(topLevelMediaType)
+  )
+}
+mediaTypeAPI.getDefaults = () => registry.defaults
+
+export default mediaTypeAPI
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/class/EncoderRegistry.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/class/EncoderRegistry.js
new file mode 100644
index 00000000000..f9c575adf9a
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/class/EncoderRegistry.js
@@ -0,0 +1,31 @@
+/**
+ * @prettier
+ */
+import Registry from "./Registry"
+import encode7bit from "../encoders/7bit"
+import encode8bit from "../encoders/8bit"
+import encodeBinary from "../encoders/binary"
+import encodeQuotedPrintable from "../encoders/quoted-printable"
+import encodeBase16 from "../encoders/base16"
+import encodeBase32 from "../encoders/base32"
+import encodeBase64 from "../encoders/base64"
+
+class EncoderRegistry extends Registry {
+  #defaults = {
+    "7bit": encode7bit,
+    "8bit": encode8bit,
+    binary: encodeBinary,
+    "quoted-printable": encodeQuotedPrintable,
+    base16: encodeBase16,
+    base32: encodeBase32,
+    base64: encodeBase64,
+  }
+
+  data = { ...this.#defaults }
+
+  get defaults() {
+    return { ...this.#defaults }
+  }
+}
+
+export default EncoderRegistry
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/class/MediaTypeRegistry.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/class/MediaTypeRegistry.js
new file mode 100644
index 00000000000..26be49ec2b7
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/class/MediaTypeRegistry.js
@@ -0,0 +1,27 @@
+/**
+ * @prettier
+ */
+import Registry from "./Registry"
+import textMediaTypesGenerators from "../generators/media-types/text"
+import imageMediaTypesGenerators from "../generators/media-types/image"
+import audioMediaTypesGenerators from "../generators/media-types/audio"
+import videoMediaTypesGenerators from "../generators/media-types/video"
+import applicationMediaTypesGenerators from "../generators/media-types/application"
+
+class MediaTypeRegistry extends Registry {
+  #defaults = {
+    ...textMediaTypesGenerators,
+    ...imageMediaTypesGenerators,
+    ...audioMediaTypesGenerators,
+    ...videoMediaTypesGenerators,
+    ...applicationMediaTypesGenerators,
+  }
+
+  data = { ...this.#defaults }
+
+  get defaults() {
+    return { ...this.#defaults }
+  }
+}
+
+export default MediaTypeRegistry
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/class/Registry.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/class/Registry.js
new file mode 100644
index 00000000000..e47f95074a4
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/class/Registry.js
@@ -0,0 +1,24 @@
+/**
+ * @prettier
+ */
+class Registry {
+  data = {}
+
+  register(name, value) {
+    this.data[name] = value
+  }
+
+  unregister(name) {
+    if (typeof name === "undefined") {
+      this.data = {}
+    } else {
+      delete this.data[name]
+    }
+  }
+
+  get(name) {
+    return this.data[name]
+  }
+}
+
+export default Registry
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/core/random.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/core/random.js
new file mode 100644
index 00000000000..cd2ec61efad
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/core/random.js
@@ -0,0 +1,22 @@
+/**
+ * @prettier
+ */
+import randomBytes from "randombytes"
+import RandExp from "randexp"
+export const bytes = (length) => randomBytes(length)
+
+export const randexp = (pattern) => {
+  try {
+    const randexpInstance = new RandExp(pattern)
+    return randexpInstance.gen()
+  } catch {
+    // invalid regex should not cause a crash (regex syntax varies across languages)
+    return "string"
+  }
+}
+
+export const string = () => "string"
+
+export const number = () => 0
+
+export const integer = () => 0
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/core/utils.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/core/utils.js
new file mode 100644
index 00000000000..6d6f5a18a3c
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/core/utils.js
@@ -0,0 +1,10 @@
+/**
+ * @prettier
+ */
+export const isURI = (uri) => {
+  try {
+    return new URL(uri) && true
+  } catch {
+    return false
+  }
+}
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/7bit.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/7bit.js
new file mode 100644
index 00000000000..ac690cdd5fa
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/7bit.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const encode7bit = (content) => Buffer.from(content).toString("ascii")
+
+export default encode7bit
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/8bit.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/8bit.js
new file mode 100644
index 00000000000..5f7e7cc80c0
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/8bit.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const encode8bit = (content) => Buffer.from(content).toString("utf8")
+
+export default encode8bit
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/base16.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/base16.js
new file mode 100644
index 00000000000..eca3a35a710
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/base16.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const encodeBase16 = (content) => Buffer.from(content).toString("hex")
+
+export default encodeBase16
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/base32.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/base32.js
new file mode 100644
index 00000000000..583a5a02865
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/base32.js
@@ -0,0 +1,34 @@
+/**
+ * @prettier
+ */
+const encodeBase32 = (content) => {
+  const utf8Value = Buffer.from(content).toString("utf8")
+  const base32Alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567"
+  let paddingCount = 0
+  let base32Str = ""
+  let buffer = 0
+  let bufferLength = 0
+
+  for (let i = 0; i < utf8Value.length; i++) {
+    buffer = (buffer << 8) | utf8Value.charCodeAt(i)
+    bufferLength += 8
+
+    while (bufferLength >= 5) {
+      base32Str += base32Alphabet.charAt((buffer >>> (bufferLength - 5)) & 31)
+      bufferLength -= 5
+    }
+  }
+
+  if (bufferLength > 0) {
+    base32Str += base32Alphabet.charAt((buffer << (5 - bufferLength)) & 31)
+    paddingCount = (8 - ((utf8Value.length * 8) % 5)) % 5
+  }
+
+  for (let i = 0; i < paddingCount; i++) {
+    base32Str += "="
+  }
+
+  return base32Str
+}
+
+export default encodeBase32
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/base64.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/base64.js
new file mode 100644
index 00000000000..bb6378d1df3
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/base64.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const encodeBase64 = (content) => Buffer.from(content).toString("base64")
+
+export default encodeBase64
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/binary.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/binary.js
new file mode 100644
index 00000000000..0b1dd143f36
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/binary.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const encodeBinary = (content) => Buffer.from(content).toString("binary")
+
+export default encodeBinary
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/quoted-printable.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/quoted-printable.js
new file mode 100644
index 00000000000..2beb4465b9e
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/encoders/quoted-printable.js
@@ -0,0 +1,38 @@
+/**
+ * @prettier
+ */
+const encodeQuotedPrintable = (content) => {
+  let quotedPrintable = ""
+
+  for (let i = 0; i < content.length; i++) {
+    const charCode = content.charCodeAt(i)
+
+    if (charCode === 61) {
+      // ASCII content of "="
+      quotedPrintable += "=3D"
+    } else if (
+      (charCode >= 33 && charCode <= 60) ||
+      (charCode >= 62 && charCode <= 126) ||
+      charCode === 9 ||
+      charCode === 32
+    ) {
+      quotedPrintable += content.charAt(i)
+    } else if (charCode === 13 || charCode === 10) {
+      quotedPrintable += "\r\n"
+    } else if (charCode > 126) {
+      // convert non-ASCII characters to UTF-8 and encode each byte
+      const utf8 = unescape(encodeURIComponent(content.charAt(i)))
+      for (let j = 0; j < utf8.length; j++) {
+        quotedPrintable +=
+          "=" + ("0" + utf8.charCodeAt(j).toString(16)).slice(-2).toUpperCase()
+      }
+    } else {
+      quotedPrintable +=
+        "=" + ("0" + charCode.toString(16)).slice(-2).toUpperCase()
+    }
+  }
+
+  return quotedPrintable
+}
+
+export default encodeQuotedPrintable
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/date-time.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/date-time.js
new file mode 100644
index 00000000000..30cee3a3a2d
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/date-time.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const dateTimeGenerator = () => new Date().toISOString()
+
+export default dateTimeGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/date.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/date.js
new file mode 100644
index 00000000000..a1c217dbe50
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/date.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const dateGenerator = () => new Date().toISOString().substring(0, 10)
+
+export default dateGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/double.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/double.js
new file mode 100644
index 00000000000..ec0e871097e
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/double.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const doubleGenerator = () => 0.1
+
+export default doubleGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/duration.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/duration.js
new file mode 100644
index 00000000000..ae5a8d73535
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/duration.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const durationGenerator = () => "P3D" // expresses a duration of 3 days
+
+export default durationGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/email.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/email.js
new file mode 100644
index 00000000000..61ac4baab18
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/email.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const emailGenerator = () => "user@example.com"
+
+export default emailGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/float.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/float.js
new file mode 100644
index 00000000000..5b2f9c2acdc
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/float.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const floatGenerator = () => 0.1
+
+export default floatGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/hostname.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/hostname.js
new file mode 100644
index 00000000000..a1a65ff446a
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/hostname.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const hostnameGenerator = () => "example.com"
+
+export default hostnameGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/idn-email.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/idn-email.js
new file mode 100644
index 00000000000..948a89b8924
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/idn-email.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const idnEmailGenerator = () => "실례@example.com"
+
+export default idnEmailGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/idn-hostname.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/idn-hostname.js
new file mode 100644
index 00000000000..7c50a026432
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/idn-hostname.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const idnHostnameGenerator = () => "실례.com"
+
+export default idnHostnameGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/int32.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/int32.js
new file mode 100644
index 00000000000..5c31cb0047e
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/int32.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const int32Generator = () => (2 ** 30) >>> 0
+
+export default int32Generator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/int64.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/int64.js
new file mode 100644
index 00000000000..611d1c593cb
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/int64.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const int64Generator = () => 2 ** 53 - 1
+
+export default int64Generator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/ipv4.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/ipv4.js
new file mode 100644
index 00000000000..8a18d45ce2b
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/ipv4.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const ipv4Generator = () => "198.51.100.42"
+
+export default ipv4Generator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/ipv6.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/ipv6.js
new file mode 100644
index 00000000000..d933b87552c
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/ipv6.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const ipv6Generator = () => "2001:0db8:5b96:0000:0000:426f:8e17:642a"
+
+export default ipv6Generator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/iri-reference.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/iri-reference.js
new file mode 100644
index 00000000000..9cfe9e3395b
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/iri-reference.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const iriReferenceGenerator = () => "path/실례.html"
+
+export default iriReferenceGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/iri.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/iri.js
new file mode 100644
index 00000000000..7930babd2fa
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/iri.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const iriGenerator = () => "https://실례.com/"
+
+export default iriGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/json-pointer.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/json-pointer.js
new file mode 100644
index 00000000000..0f14a483206
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/json-pointer.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const jsonPointerGenerator = () => "/a/b/c"
+
+export default jsonPointerGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/media-types/application.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/media-types/application.js
new file mode 100644
index 00000000000..b6ad219803d
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/media-types/application.js
@@ -0,0 +1,17 @@
+/**
+ * @prettier
+ */
+import { bytes } from "../../core/random"
+
+// https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types
+const applicationMediaTypesGenerators = {
+  "application/json": () => '{"key":"value"}',
+  "application/ld+json": () => '{"name": "John Doe"}',
+  "application/x-httpd-php": () => "<?php echo '<p>Hello World!</p>'; ?>",
+  "application/rtf": () => String.raw`{\rtf1\adeflang1025\ansi\ansicpg1252\uc1`,
+  "application/x-sh": () => 'echo "Hello World!"',
+  "application/xhtml+xml": () => "<p>content</p>",
+  "application/*": () => bytes(25).toString("binary"),
+}
+
+export default applicationMediaTypesGenerators
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/media-types/audio.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/media-types/audio.js
new file mode 100644
index 00000000000..8cc505e2c55
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/media-types/audio.js
@@ -0,0 +1,10 @@
+/**
+ * @prettier
+ */
+import { bytes } from "../../core/random"
+
+const audioMediaTypesGenerators = {
+  "audio/*": () => bytes(25).toString("binary"),
+}
+
+export default audioMediaTypesGenerators
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/media-types/image.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/media-types/image.js
new file mode 100644
index 00000000000..5c54e30ce85
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/media-types/image.js
@@ -0,0 +1,10 @@
+/**
+ * @prettier
+ */
+import { bytes } from "../../core/random"
+
+const imageMediaTypesGenerators = {
+  "image/*": () => bytes(25).toString("binary"),
+}
+
+export default imageMediaTypesGenerators
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/media-types/text.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/media-types/text.js
new file mode 100644
index 00000000000..6d5a1201138
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/media-types/text.js
@@ -0,0 +1,17 @@
+/**
+ * @prettier
+ */
+
+// https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types
+const textMediaTypesGenerators = {
+  "text/plain": () => "string",
+  "text/css": () => ".selector { border: 1px solid red }",
+  "text/csv": () => "value1,value2,value3",
+  "text/html": () => "<p>content</p>",
+  "text/calendar": () => "BEGIN:VCALENDAR",
+  "text/javascript": () => "console.dir('Hello world!');",
+  "text/xml": () => '<person age="30">John Doe</person>',
+  "text/*": () => "string",
+}
+
+export default textMediaTypesGenerators
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/media-types/video.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/media-types/video.js
new file mode 100644
index 00000000000..d17f8c63eb1
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/media-types/video.js
@@ -0,0 +1,10 @@
+/**
+ * @prettier
+ */
+import { bytes } from "../../core/random"
+
+const videoMediaTypesGenerators = {
+  "video/*": () => bytes(25).toString("binary"),
+}
+
+export default videoMediaTypesGenerators
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/password.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/password.js
new file mode 100644
index 00000000000..c8272d64a8d
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/password.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const passwordGenerator = () => "********"
+
+export default passwordGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/regex.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/regex.js
new file mode 100644
index 00000000000..6419f2ac237
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/regex.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const regexGenerator = () => "^[a-z]+$"
+
+export default regexGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/relative-json-pointer.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/relative-json-pointer.js
new file mode 100644
index 00000000000..3ba5c4068d2
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/relative-json-pointer.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const relativeJsonPointerGenerator = () => "1/0"
+
+export default relativeJsonPointerGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/time.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/time.js
new file mode 100644
index 00000000000..5b583fe7f3e
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/time.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const timeGenerator = () => new Date().toISOString().substring(11)
+
+export default timeGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/uri-reference.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/uri-reference.js
new file mode 100644
index 00000000000..cac8183d66c
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/uri-reference.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const uriReferenceGenerator = () => "path/index.html"
+
+export default uriReferenceGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/uri-template.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/uri-template.js
new file mode 100644
index 00000000000..7191b909ecf
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/uri-template.js
@@ -0,0 +1,7 @@
+/**
+ * @prettier
+ */
+const uriTemplateGenerator = () =>
+  "https://example.com/dictionary/{term:1}/{term}"
+
+export default uriTemplateGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/uri.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/uri.js
new file mode 100644
index 00000000000..1ef9850d338
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/uri.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const uriGenerator = () => "https://example.com/"
+
+export default uriGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/uuid.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/uuid.js
new file mode 100644
index 00000000000..a725771c50e
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/generators/uuid.js
@@ -0,0 +1,6 @@
+/**
+ * @prettier
+ */
+const uuidGenerator = () => "3fa85f64-5717-4562-b3fc-2c963f66afa6"
+
+export default uuidGenerator
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/index.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/index.js
new file mode 100644
index 00000000000..b6a34c0f64e
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/index.js
@@ -0,0 +1,13 @@
+/**
+ * @prettier
+ */
+export {
+  sampleFromSchema,
+  sampleFromSchemaGeneric,
+  createXMLExample,
+  memoizedSampleFromSchema,
+  memoizedCreateXMLExample,
+} from "./main"
+export { default as encoderAPI } from "./api/encoderAPI"
+export { default as formatAPI } from "./api/formatAPI"
+export { default as mediaTypeAPI } from "./api/mediaTypeAPI"
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/main.js
similarity index 61%
rename from src/core/plugins/json-schema-2020-12/samples-extensions/fn.js
rename to src/core/plugins/json-schema-2020-12/samples-extensions/fn/main.js
index ddb02e84980..e0775be5bfc 100644
--- a/src/core/plugins/json-schema-2020-12/samples-extensions/fn.js
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/main.js
@@ -2,378 +2,23 @@
  * @prettier
  */
 import XML from "xml"
-import RandExp from "randexp"
 import isEmpty from "lodash/isEmpty"
-import randomBytes from "randombytes"
 
 import { objectify, isFunc, normalizeArray, deeplyStripKey } from "core/utils"
-import memoizeN from "../../../../helpers/memoizeN"
-
-const twentyFiveRandomBytesString = randomBytes(25).toString("binary")
-
-const stringFromRegex = (pattern) => {
-  try {
-    const randexp = new RandExp(pattern)
-    return randexp.gen()
-  } catch {
-    // invalid regex should not cause a crash (regex syntax varies across languages)
-    return "string"
-  }
-}
-
-const contentEncodings = {
-  "7bit": (content) => Buffer.from(content).toString("ascii"),
-  "8bit": (content) => Buffer.from(content).toString("utf8"),
-  binary: (content) => Buffer.from(content).toString("binary"),
-  "quoted-printable": (content) => {
-    let quotedPrintable = ""
-
-    for (let i = 0; i < content.length; i++) {
-      const charCode = content.charCodeAt(i)
-
-      if (charCode === 61) {
-        // ASCII content of "="
-        quotedPrintable += "=3D"
-      } else if (
-        (charCode >= 33 && charCode <= 60) ||
-        (charCode >= 62 && charCode <= 126) ||
-        charCode === 9 ||
-        charCode === 32
-      ) {
-        quotedPrintable += content.charAt(i)
-      } else if (charCode === 13 || charCode === 10) {
-        quotedPrintable += "\r\n"
-      } else if (charCode > 126) {
-        // convert non-ASCII characters to UTF-8 and encode each byte
-        const utf8 = unescape(encodeURIComponent(content.charAt(i)))
-        for (let j = 0; j < utf8.length; j++) {
-          quotedPrintable +=
-            "=" +
-            ("0" + utf8.charCodeAt(j).toString(16)).slice(-2).toUpperCase()
-        }
-      } else {
-        quotedPrintable +=
-          "=" + ("0" + charCode.toString(16)).slice(-2).toUpperCase()
-      }
-    }
-
-    return quotedPrintable
-  },
-  base16: (content) => Buffer.from(content).toString("hex"),
-  base32: (content) => {
-    const utf8Value = Buffer.from(content).toString("utf8")
-    const base32Alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567"
-    let paddingCount = 0
-    let base32Str = ""
-    let buffer = 0
-    let bufferLength = 0
-
-    for (let i = 0; i < utf8Value.length; i++) {
-      buffer = (buffer << 8) | utf8Value.charCodeAt(i)
-      bufferLength += 8
-
-      while (bufferLength >= 5) {
-        base32Str += base32Alphabet.charAt((buffer >>> (bufferLength - 5)) & 31)
-        bufferLength -= 5
-      }
-    }
-
-    if (bufferLength > 0) {
-      base32Str += base32Alphabet.charAt((buffer << (5 - bufferLength)) & 31)
-      paddingCount = (8 - ((utf8Value.length * 8) % 5)) % 5
-    }
-
-    for (let i = 0; i < paddingCount; i++) {
-      base32Str += "="
-    }
-
-    return base32Str
-  },
-  base64: (content) => Buffer.from(content).toString("base64"),
-}
-
-const encodeContent = (content, encoding) => {
-  if (typeof contentEncodings[encoding] === "function") {
-    return contentEncodings[encoding](content)
-  }
-  return content
-}
-
-// https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types
-const contentMediaTypes = {
-  // text media type subtypes
-  "text/plain": () => "string",
-  "text/css": () => ".selector { border: 1px solid red }",
-  "text/csv": () => "value1,value2,value3",
-  "text/html": () => "<p>content</p>",
-  "text/calendar": () => "BEGIN:VCALENDAR",
-  "text/javascript": () => "console.dir('Hello world!');",
-  "text/xml": () => '<person age="30">John Doe</person>',
-  "text/*": () => "string",
-  // image media type subtypes
-  "image/*": () => twentyFiveRandomBytesString,
-  // audio media type subtypes
-  "audio/*": () => twentyFiveRandomBytesString,
-  // video media type subtypes
-  "video/*": () => twentyFiveRandomBytesString,
-  // application media type subtypes
-  "application/json": () => '{"key":"value"}',
-  "application/ld+json": () => '{"name": "John Doe"}',
-  "application/x-httpd-php": () => "<?php echo '<p>Hello World!</p>'; ?>",
-  "application/rtf": () => String.raw`{\rtf1\adeflang1025\ansi\ansicpg1252\uc1`,
-  "application/x-sh": () => 'echo "Hello World!"',
-  "application/xhtml+xml": () => "<p>content</p>",
-  "application/*": () => twentyFiveRandomBytesString,
-}
-
-const contentFromMediaType = (mediaType) => {
-  const mediaTypeNoParams = mediaType.split(";").at(0)
-  const topLevelMediaType = `${mediaTypeNoParams.split("/").at(0)}/*`
-
-  if (typeof contentMediaTypes[mediaTypeNoParams] === "function") {
-    return contentMediaTypes[mediaTypeNoParams]()
-  }
-  if (typeof contentMediaTypes[topLevelMediaType] === "function") {
-    return contentMediaTypes[topLevelMediaType]()
-  }
-
-  return "string"
-}
-
-/* eslint-disable camelcase */
-const primitives = {
-  string: (schema) => {
-    const { pattern, contentEncoding, contentMediaType } = schema
-    const content =
-      typeof pattern === "string"
-        ? stringFromRegex(pattern)
-        : typeof contentMediaType === "string"
-        ? contentFromMediaType(contentMediaType)
-        : "string"
-    return encodeContent(content, contentEncoding)
-  },
-  string_email: (schema) => {
-    const { contentEncoding } = schema
-    const content = "user@example.com"
-    return encodeContent(content, contentEncoding)
-  },
-  "string_idn-email": (schema) => {
-    const { contentEncoding } = schema
-    const content = "실례@example.com"
-    return encodeContent(content, contentEncoding)
-  },
-  string_hostname: (schema) => {
-    const { contentEncoding } = schema
-    const content = "example.com"
-    return encodeContent(content, contentEncoding)
-  },
-  "string_idn-hostname": (schema) => {
-    const { contentEncoding } = schema
-    const content = "실례.com"
-    return encodeContent(content, contentEncoding)
-  },
-  string_ipv4: (schema) => {
-    const { contentEncoding } = schema
-    const content = "198.51.100.42"
-    return encodeContent(content, contentEncoding)
-  },
-  string_ipv6: (schema) => {
-    const { contentEncoding } = schema
-    const content = "2001:0db8:5b96:0000:0000:426f:8e17:642a"
-    return encodeContent(content, contentEncoding)
-  },
-  string_uri: (schema) => {
-    const { contentEncoding } = schema
-    const content = "https://example.com/"
-    return encodeContent(content, contentEncoding)
-  },
-  "string_uri-reference": (schema) => {
-    const { contentEncoding } = schema
-    const content = "path/index.html"
-    return encodeContent(content, contentEncoding)
-  },
-  string_iri: (schema) => {
-    const { contentEncoding } = schema
-    const content = "https://실례.com/"
-    return encodeContent(content, contentEncoding)
-  },
-  "string_iri-reference": (schema) => {
-    const { contentEncoding } = schema
-    const content = "path/실례.html"
-    return encodeContent(content, contentEncoding)
-  },
-  string_uuid: (schema) => {
-    const { contentEncoding } = schema
-    const content = "3fa85f64-5717-4562-b3fc-2c963f66afa6"
-    return encodeContent(content, contentEncoding)
-  },
-  "string_uri-template": (schema) => {
-    const { contentEncoding } = schema
-    const content = "https://example.com/dictionary/{term:1}/{term}"
-    return encodeContent(content, contentEncoding)
-  },
-  "string_json-pointer": (schema) => {
-    const { contentEncoding } = schema
-    const content = "/a/b/c"
-    return encodeContent(content, contentEncoding)
-  },
-  "string_relative-json-pointer": (schema) => {
-    const { contentEncoding } = schema
-    const content = "1/0"
-    return encodeContent(content, contentEncoding)
-  },
-  "string_date-time": (schema) => {
-    const { contentEncoding } = schema
-    const content = new Date().toISOString()
-    return encodeContent(content, contentEncoding)
-  },
-  string_date: (schema) => {
-    const { contentEncoding } = schema
-    const content = new Date().toISOString().substring(0, 10)
-    return encodeContent(content, contentEncoding)
-  },
-  string_time: (schema) => {
-    const { contentEncoding } = schema
-    const content = new Date().toISOString().substring(11)
-    return encodeContent(content, contentEncoding)
-  },
-  string_duration: (schema) => {
-    const { contentEncoding } = schema
-    const content = "P3D" // expresses a duration of 3 days
-    return encodeContent(content, contentEncoding)
-  },
-  string_password: (schema) => {
-    const { contentEncoding } = schema
-    const content = "********"
-    return encodeContent(content, contentEncoding)
-  },
-  string_regex: (schema) => {
-    const { contentEncoding } = schema
-    const content = "^[a-z]+$"
-    return encodeContent(content, contentEncoding)
-  },
-  number: () => 0,
-  number_float: () => 0.1,
-  number_double: () => 0.1,
-  integer: () => 0,
-  integer_int32: () => (2 ** 30) >>> 0,
-  integer_int64: () => 2 ** 53 - 1,
-  boolean: (schema) =>
-    typeof schema.default === "boolean" ? schema.default : true,
-  null: () => null,
-}
-/* eslint-enable camelcase */
+import memoizeN from "../../../../../helpers/memoizeN"
+import typeMap from "./types/index"
+import { isURI } from "./core/utils"
 
 const primitive = (schema) => {
   schema = objectify(schema)
-  const { type: typeList, format } = schema
+  const { type: typeList } = schema
   const type = Array.isArray(typeList) ? typeList.at(0) : typeList
 
-  const fn = primitives[`${type}_${format}`] || primitives[type]
-
-  return typeof fn === "function" ? fn(schema) : `Unknown Type: ${schema.type}`
-}
-
-const isURI = (uri) => {
-  try {
-    return new URL(uri) && true
-  } catch {
-    return false
-  }
-}
-
-const applyArrayConstraints = (array, constraints = {}) => {
-  const { minItems, maxItems, uniqueItems } = constraints
-  const { contains, minContains, maxContains } = constraints
-  let constrainedArray = [...array]
-
-  if (contains != null && typeof contains === "object") {
-    if (Number.isInteger(minContains) && minContains > 1) {
-      const containsItem = constrainedArray.at(0)
-      for (let i = 1; i < minContains; i += 1) {
-        constrainedArray.unshift(containsItem)
-      }
-    }
-    if (Number.isInteger(maxContains) && maxContains > 0) {
-      /**
-       * This is noop. `minContains` already generate minimum required
-       * number of items that satisfies `contains`. `maxContains` would
-       * have no effect.
-       */
-    }
-  }
-
-  if (Number.isInteger(maxItems) && maxItems > 0) {
-    constrainedArray = array.slice(0, maxItems)
-  }
-  if (Number.isInteger(minItems) && minItems > 0) {
-    for (let i = 0; constrainedArray.length < minItems; i += 1) {
-      constrainedArray.push(constrainedArray[i % constrainedArray.length])
-    }
-  }
-
-  if (uniqueItems === true) {
-    /**
-     *  If uniqueItems is true, it implies that every item in the array must be unique.
-     *  This overrides any minItems constraint that cannot be satisfied with unique items.
-     *  So if minItems is greater than the number of unique items,
-     *  it should be reduced to the number of unique items.
-     */
-    constrainedArray = Array.from(new Set(constrainedArray))
+  if (Object.hasOwn(typeMap, type)) {
+    return typeMap[type](schema)
   }
 
-  return constrainedArray
-}
-
-const applyNumberConstraints = (number, constraints = {}) => {
-  const { minimum, maximum, exclusiveMinimum, exclusiveMaximum } = constraints
-  const { multipleOf } = constraints
-  const epsilon = Number.isInteger(number) ? 1 : Number.EPSILON
-  let minValue = typeof minimum === "number" ? minimum : null
-  let maxValue = typeof maximum === "number" ? maximum : null
-  let constrainedNumber = number
-
-  if (typeof exclusiveMinimum === "number") {
-    minValue =
-      minValue !== null
-        ? Math.max(minValue, exclusiveMinimum + epsilon)
-        : exclusiveMinimum + epsilon
-  }
-  if (typeof exclusiveMaximum === "number") {
-    maxValue =
-      maxValue !== null
-        ? Math.min(maxValue, exclusiveMaximum - epsilon)
-        : exclusiveMaximum - epsilon
-  }
-  constrainedNumber =
-    (minValue > maxValue && number) || minValue || maxValue || constrainedNumber
-
-  if (typeof multipleOf === "number" && multipleOf > 0) {
-    const remainder = constrainedNumber % multipleOf
-    constrainedNumber =
-      remainder === 0
-        ? constrainedNumber
-        : constrainedNumber + multipleOf - remainder
-  }
-
-  return constrainedNumber
-}
-
-const applyStringConstraints = (string, constraints = {}) => {
-  const { maxLength, minLength } = constraints
-  let constrainedString = string
-
-  if (Number.isInteger(maxLength) && maxLength > 0) {
-    constrainedString = constrainedString.slice(0, maxLength)
-  }
-  if (Number.isInteger(minLength) && minLength > 0) {
-    let i = 0
-    while (constrainedString.length < minLength) {
-      constrainedString += constrainedString[i++ % constrainedString.length]
-    }
-  }
-
-  return constrainedString
+  return `Unknown Type: ${type}`
 }
 
 /**
@@ -823,7 +468,7 @@ export const sampleFromSchemaGeneric = (
         ]
       }
 
-      itemSamples = applyArrayConstraints(itemSamples, schema)
+      itemSamples = typeMap.array(schema, itemSamples)
       if (xml.wrapped) {
         res[displayName] = itemSamples
         if (!isEmpty(_attr)) {
@@ -961,7 +606,7 @@ export const sampleFromSchemaGeneric = (
       }
     }
 
-    sampleArray = applyArrayConstraints(sampleArray, schema)
+    sampleArray = typeMap.array(schema, sampleArray)
     if (respectXML && xml.wrapped) {
       res[displayName] = sampleArray
       if (!isEmpty(_attr)) {
@@ -1055,12 +700,6 @@ export const sampleFromSchemaGeneric = (
   } else if (schema) {
     // display schema default
     value = primitive(schema)
-    if (typeof value === "number") {
-      value = applyNumberConstraints(value, schema)
-    }
-    if (typeof value === "string") {
-      value = applyStringConstraints(value, schema)
-    }
   } else {
     return
   }
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/array.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/array.js
new file mode 100644
index 00000000000..abef5fc8ca4
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/array.js
@@ -0,0 +1,52 @@
+/**
+ * @prettier
+ */
+
+export const applyArrayConstraints = (array, constraints = {}) => {
+  const { minItems, maxItems, uniqueItems } = constraints
+  const { contains, minContains, maxContains } = constraints
+  let constrainedArray = [...array]
+
+  if (contains != null && typeof contains === "object") {
+    if (Number.isInteger(minContains) && minContains > 1) {
+      const containsItem = constrainedArray.at(0)
+      for (let i = 1; i < minContains; i += 1) {
+        constrainedArray.unshift(containsItem)
+      }
+    }
+    if (Number.isInteger(maxContains) && maxContains > 0) {
+      /**
+       * This is noop. `minContains` already generate minimum required
+       * number of items that satisfies `contains`. `maxContains` would
+       * have no effect.
+       */
+    }
+  }
+
+  if (Number.isInteger(maxItems) && maxItems > 0) {
+    constrainedArray = array.slice(0, maxItems)
+  }
+  if (Number.isInteger(minItems) && minItems > 0) {
+    for (let i = 0; constrainedArray.length < minItems; i += 1) {
+      constrainedArray.push(constrainedArray[i % constrainedArray.length])
+    }
+  }
+
+  if (uniqueItems === true) {
+    /**
+     *  If uniqueItems is true, it implies that every item in the array must be unique.
+     *  This overrides any minItems constraint that cannot be satisfied with unique items.
+     *  So if minItems is greater than the number of unique items,
+     *  it should be reduced to the number of unique items.
+     */
+    constrainedArray = Array.from(new Set(constrainedArray))
+  }
+
+  return constrainedArray
+}
+
+const arrayType = (schema, sampleArray) => {
+  return applyArrayConstraints(sampleArray, schema)
+}
+
+export default arrayType
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/boolean.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/boolean.js
new file mode 100644
index 00000000000..e506215ff9f
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/boolean.js
@@ -0,0 +1,9 @@
+/**
+ * @prettier
+ */
+
+const booleanType = (schema) => {
+  return typeof schema.default === "boolean" ? schema.default : true
+}
+
+export default booleanType
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/index.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/index.js
new file mode 100644
index 00000000000..dbd05c34768
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/index.js
@@ -0,0 +1,22 @@
+/**
+ * @prettier
+ */
+import arrayType from "./array"
+import objectType from "./object"
+import stringType from "./string"
+import numberType from "./number"
+import integerType from "./integer"
+import booleanType from "./boolean"
+import nullType from "./null"
+
+const typeMap = {
+  array: arrayType,
+  object: objectType,
+  string: stringType,
+  number: numberType,
+  integer: integerType,
+  boolean: booleanType,
+  null: nullType,
+}
+
+export default typeMap
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/integer.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/integer.js
new file mode 100644
index 00000000000..f5159a46789
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/integer.js
@@ -0,0 +1,38 @@
+/**
+ * @prettier
+ */
+import { integer as randomInteger } from "../core/random"
+import formatAPI from "../api/formatAPI"
+import int32Generator from "../generators/int32"
+import int64Generator from "../generators/int64"
+
+const generateFormat = (schema) => {
+  const { format } = schema
+
+  const formatGenerator = formatAPI(format)
+  if (typeof formatGenerator === "function") {
+    return formatGenerator(schema)
+  }
+
+  switch (format) {
+    case "int32": {
+      return int32Generator()
+    }
+    case "int64": {
+      return int64Generator()
+    }
+  }
+
+  return randomInteger()
+}
+const integerType = (schema) => {
+  const { format } = schema
+
+  if (typeof format === "string") {
+    return generateFormat(schema)
+  }
+
+  return randomInteger()
+}
+
+export default integerType
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/null.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/null.js
new file mode 100644
index 00000000000..f7fd20d2bb8
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/null.js
@@ -0,0 +1,9 @@
+/**
+ * @prettier
+ */
+
+const nullType = () => {
+  return null
+}
+
+export default nullType
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/number.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/number.js
new file mode 100644
index 00000000000..afc6720e0e9
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/number.js
@@ -0,0 +1,76 @@
+/**
+ * @prettier
+ */
+import { number as randomNumber } from "../core/random"
+import formatAPI from "../api/formatAPI"
+import floatGenerator from "../generators/float"
+import doubleGenerator from "../generators/double"
+
+const generateFormat = (schema) => {
+  const { format } = schema
+
+  const formatGenerator = formatAPI(format)
+  if (typeof formatGenerator === "function") {
+    return formatGenerator(schema)
+  }
+
+  switch (format) {
+    case "float": {
+      return floatGenerator()
+    }
+    case "double": {
+      return doubleGenerator()
+    }
+  }
+
+  return randomNumber()
+}
+
+const applyNumberConstraints = (number, constraints = {}) => {
+  const { minimum, maximum, exclusiveMinimum, exclusiveMaximum } = constraints
+  const { multipleOf } = constraints
+  const epsilon = Number.isInteger(number) ? 1 : Number.EPSILON
+  let minValue = typeof minimum === "number" ? minimum : null
+  let maxValue = typeof maximum === "number" ? maximum : null
+  let constrainedNumber = number
+
+  if (typeof exclusiveMinimum === "number") {
+    minValue =
+      minValue !== null
+        ? Math.max(minValue, exclusiveMinimum + epsilon)
+        : exclusiveMinimum + epsilon
+  }
+  if (typeof exclusiveMaximum === "number") {
+    maxValue =
+      maxValue !== null
+        ? Math.min(maxValue, exclusiveMaximum - epsilon)
+        : exclusiveMaximum - epsilon
+  }
+  constrainedNumber =
+    (minValue > maxValue && number) || minValue || maxValue || constrainedNumber
+
+  if (typeof multipleOf === "number" && multipleOf > 0) {
+    const remainder = constrainedNumber % multipleOf
+    constrainedNumber =
+      remainder === 0
+        ? constrainedNumber
+        : constrainedNumber + multipleOf - remainder
+  }
+
+  return constrainedNumber
+}
+
+const numberType = (schema) => {
+  const { format } = schema
+  let generatedNumber
+
+  if (typeof format === "string") {
+    generatedNumber = generateFormat(schema)
+  } else {
+    generatedNumber = randomNumber()
+  }
+
+  return applyNumberConstraints(generatedNumber, schema)
+}
+
+export default numberType
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/object.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/object.js
new file mode 100644
index 00000000000..bc76c580e8c
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/object.js
@@ -0,0 +1,9 @@
+/**
+ * @prettier
+ */
+
+const objectType = () => {
+  throw new Error("Not implemented")
+}
+
+export default objectType
diff --git a/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/string.js b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/string.js
new file mode 100644
index 00000000000..0db8dd999d1
--- /dev/null
+++ b/src/core/plugins/json-schema-2020-12/samples-extensions/fn/types/string.js
@@ -0,0 +1,142 @@
+/**
+ * @prettier
+ */
+import identity from "lodash/identity"
+
+import { string as randomString, randexp } from "../core/random"
+import emailGenerator from "../generators/email"
+import idnEmailGenerator from "../generators/idn-email"
+import hostnameGenerator from "../generators/hostname"
+import idnHostnameGenerator from "../generators/idn-hostname"
+import ipv4Generator from "../generators/ipv4"
+import ipv6Generator from "../generators/ipv6"
+import uriGenerator from "../generators/uri"
+import uriReferenceGenerator from "../generators/uri-reference"
+import iriGenerator from "../generators/iri"
+import iriReferenceGenerator from "../generators/iri-reference"
+import uuidGenerator from "../generators/uuid"
+import uriTemplateGenerator from "../generators/uri-template"
+import jsonPointerGenerator from "../generators/json-pointer"
+import relativeJsonPointerGenerator from "../generators/relative-json-pointer"
+import dateTimeGenerator from "../generators/date-time"
+import dateGenerator from "../generators/date"
+import timeGenerator from "../generators/time"
+import durationGenerator from "../generators/duration"
+import passwordGenerator from "../generators/password"
+import regexGenerator from "../generators/regex"
+import formatAPI from "../api/formatAPI"
+import encoderAPI from "../api/encoderAPI"
+import mediaTypeAPI from "../api/mediaTypeAPI"
+
+const generateFormat = (schema) => {
+  const { format } = schema
+
+  const formatGenerator = formatAPI(format)
+  if (typeof formatGenerator === "function") {
+    return formatGenerator(schema)
+  }
+
+  switch (format) {
+    case "email": {
+      return emailGenerator()
+    }
+    case "idn-email": {
+      return idnEmailGenerator()
+    }
+    case "hostname": {
+      return hostnameGenerator()
+    }
+    case "idn-hostname": {
+      return idnHostnameGenerator()
+    }
+    case "ipv4": {
+      return ipv4Generator()
+    }
+    case "ipv6": {
+      return ipv6Generator()
+    }
+    case "uri": {
+      return uriGenerator()
+    }
+    case "uri-reference": {
+      return uriReferenceGenerator()
+    }
+    case "iri": {
+      return iriGenerator()
+    }
+    case "iri-reference": {
+      return iriReferenceGenerator()
+    }
+    case "uuid": {
+      return uuidGenerator()
+    }
+    case "uri-template": {
+      return uriTemplateGenerator()
+    }
+    case "json-pointer": {
+      return jsonPointerGenerator()
+    }
+    case "relative-json-pointer": {
+      return relativeJsonPointerGenerator()
+    }
+    case "date-time": {
+      return dateTimeGenerator()
+    }
+    case "date": {
+      return dateGenerator()
+    }
+    case "time": {
+      return timeGenerator()
+    }
+    case "duration": {
+      return durationGenerator()
+    }
+    case "password": {
+      return passwordGenerator()
+    }
+    case "regex": {
+      return regexGenerator()
+    }
+  }
+
+  return randomString()
+}
+
+const applyStringConstraints = (string, constraints = {}) => {
+  const { maxLength, minLength } = constraints
+  let constrainedString = string
+
+  if (Number.isInteger(maxLength) && maxLength > 0) {
+    constrainedString = constrainedString.slice(0, maxLength)
+  }
+  if (Number.isInteger(minLength) && minLength > 0) {
+    let i = 0
+    while (constrainedString.length < minLength) {
+      constrainedString += constrainedString[i++ % constrainedString.length]
+    }
+  }
+
+  return constrainedString
+}
+const stringType = (schema) => {
+  const { pattern, format, contentEncoding, contentMediaType } = schema
+  const encode = encoderAPI(contentEncoding) || identity
+  let generatedString
+
+  if (typeof pattern === "string") {
+    generatedString = randexp(pattern)
+  } else if (typeof format === "string") {
+    generatedString = generateFormat(schema)
+  } else if (typeof contentMediaType === "string") {
+    const mediaTypeGenerator = mediaTypeAPI(contentMediaType)
+    if (typeof mediaTypeGenerator === "function") {
+      generatedString = mediaTypeGenerator(schema)
+    }
+  } else {
+    generatedString = randomString()
+  }
+
+  return encode(applyStringConstraints(generatedString, schema))
+}
+
+export default stringType