From 8b2433455f4fa8e01bbf6915dc8ef89dae025301 Mon Sep 17 00:00:00 2001
From: Yuki Kishimoto <yukikishimoto@protonmail.com>
Date: Wed, 18 Dec 2024 12:48:44 +0100
Subject: [PATCH] book: init flutter snippets

Signed-off-by: Yuki Kishimoto <yukikishimoto@protonmail.com>
---
 .github/workflows/book.yml                  |   3 +
 book/snippets/flutter/.gitignore            |   7 +
 book/snippets/flutter/analysis_options.yaml |  30 ++
 book/snippets/flutter/justfile              |   5 +
 book/snippets/flutter/lib/hello.dart        |  25 +
 book/snippets/flutter/pubspec.lock          | 486 ++++++++++++++++++++
 book/snippets/flutter/pubspec.yaml          |  17 +
 book/snippets/justfile                      |   5 +-
 book/src/sdk/hello.md                       |  20 +-
 9 files changed, 592 insertions(+), 6 deletions(-)
 create mode 100644 book/snippets/flutter/.gitignore
 create mode 100644 book/snippets/flutter/analysis_options.yaml
 create mode 100644 book/snippets/flutter/justfile
 create mode 100644 book/snippets/flutter/lib/hello.dart
 create mode 100644 book/snippets/flutter/pubspec.lock
 create mode 100644 book/snippets/flutter/pubspec.yaml

diff --git a/.github/workflows/book.yml b/.github/workflows/book.yml
index 55d99d6be..afadaf90b 100644
--- a/.github/workflows/book.yml
+++ b/.github/workflows/book.yml
@@ -44,6 +44,9 @@ jobs:
         distribution: "temurin"
         java-version: 17
 
+    # Required for dart/flutter snippets
+    - uses: subosito/flutter-action@v2
+
     - name: Check
       run: just check-book
 
diff --git a/book/snippets/flutter/.gitignore b/book/snippets/flutter/.gitignore
new file mode 100644
index 000000000..ca269e6dc
--- /dev/null
+++ b/book/snippets/flutter/.gitignore
@@ -0,0 +1,7 @@
+# https://dart.dev/guides/libraries/private-files
+# Created by `dart pub`
+.dart_tool/
+packages/
+.flutter-version
+.flutter-plugins
+.flutter-plugins-dependencies
diff --git a/book/snippets/flutter/analysis_options.yaml b/book/snippets/flutter/analysis_options.yaml
new file mode 100644
index 000000000..6dd972f3c
--- /dev/null
+++ b/book/snippets/flutter/analysis_options.yaml
@@ -0,0 +1,30 @@
+# This file configures the static analysis results for your project (errors,
+# warnings, and lints).
+#
+# This enables the 'recommended' set of lints from `package:lints`.
+# This set helps identify many issues that may lead to problems when running
+# or consuming Dart code, and enforces writing Dart using a single, idiomatic
+# style and format.
+#
+# If you want a smaller set of lints you can change this to specify
+# 'package:lints/core.yaml'. These are just the most critical lints
+# (the recommended set includes the core lints).
+# The core lints are also what is used by pub.dev for scoring packages.
+
+include: package:lints/recommended.yaml
+
+# Uncomment the following section to specify additional rules.
+
+# linter:
+#   rules:
+#     - camel_case_types
+
+analyzer:
+  exclude:
+    - packages/**
+
+# For more information about the core and recommended set of lints, see
+# https://dart.dev/go/core-lints
+
+# For additional information about configuring this file, see
+# https://dart.dev/guides/language/analysis-options
diff --git a/book/snippets/flutter/justfile b/book/snippets/flutter/justfile
new file mode 100644
index 000000000..d64170c31
--- /dev/null
+++ b/book/snippets/flutter/justfile
@@ -0,0 +1,5 @@
+#!/usr/bin/env just --justfile
+
+test:
+    flutter pub get
+    dart analyze --fatal-infos
diff --git a/book/snippets/flutter/lib/hello.dart b/book/snippets/flutter/lib/hello.dart
new file mode 100644
index 000000000..b5eaaf794
--- /dev/null
+++ b/book/snippets/flutter/lib/hello.dart
@@ -0,0 +1,25 @@
+// ANCHOR: full
+
+import 'package:nostr_sdk/nostr_sdk.dart';
+
+Future<void> hello() async {
+  // ANCHOR: client
+  Keys keys = Keys.generate();
+  NostrSigner signer = NostrSigner.keys(keys: keys);
+  Client client = Client.builder().signer(signer: signer).build();
+  // ANCHOR_END: client
+
+  // ANCHOR: connect
+  await client.addRelay(url: "wss://relay.damus.io");
+  await client.connect();
+  // ANCHOR_END: connect
+
+  // ANCHOR: publish
+  // TODO
+  // ANCHOR_END: publish
+
+  // ANCHOR: output
+  // TODO
+  // ANCHOR_END: output
+}
+// ANCHOR_END: full
diff --git a/book/snippets/flutter/pubspec.lock b/book/snippets/flutter/pubspec.lock
new file mode 100644
index 000000000..de0d749c5
--- /dev/null
+++ b/book/snippets/flutter/pubspec.lock
@@ -0,0 +1,486 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  _fe_analyzer_shared:
+    dependency: transitive
+    description:
+      name: _fe_analyzer_shared
+      sha256: f256b0c0ba6c7577c15e2e4e114755640a875e885099367bf6e012b19314c834
+      url: "https://pub.dev"
+    source: hosted
+    version: "72.0.0"
+  _macros:
+    dependency: transitive
+    description: dart
+    source: sdk
+    version: "0.3.2"
+  analyzer:
+    dependency: transitive
+    description:
+      name: analyzer
+      sha256: b652861553cd3990d8ed361f7979dc6d7053a9ac8843fa73820ab68ce5410139
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.7.0"
+  args:
+    dependency: transitive
+    description:
+      name: args
+      sha256: bf9f5caeea8d8fe6721a9c358dd8a5c1947b27f1cfaa18b39c301273594919e6
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.6.0"
+  async:
+    dependency: transitive
+    description:
+      name: async
+      sha256: "947bfcf187f74dbc5e146c9eb9c0f10c9f8b30743e341481c1e2ed3ecc18c20c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.11.0"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      sha256: "6cfb5af12253eaf2b368f07bacc5a80d1301a071c73360d746b7f2e32d762c66"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.1"
+  build_cli_annotations:
+    dependency: transitive
+    description:
+      name: build_cli_annotations
+      sha256: b59d2769769efd6c9ff6d4c4cede0be115a566afc591705c2040b707534b1172
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.0"
+  characters:
+    dependency: transitive
+    description:
+      name: characters
+      sha256: "04a925763edad70e8443c99234dc3328f442e811f1d8fd1a72f1c8ad0f69a605"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.0"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      sha256: ee67cb0715911d28db6bf4af1026078bd6f0128b07a5f66fb2ed94ec6783c09a
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.18.0"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      sha256: b30acd5944035672bc15c6b7a8b47d773e41e2f17de064350988c5d02adb1c68
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.2"
+  coverage:
+    dependency: transitive
+    description:
+      name: coverage
+      sha256: e3493833ea012784c740e341952298f1cc77f1f01b1bbc3eb4eecf6984fb7f43
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.11.1"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      sha256: "1e445881f28f22d6140f181e07737b22f1e099a5e1ff94b0af2f9e4a463f4855"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.6"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      sha256: a3b4f84adafef897088c160faf7dfffb7696046cb13ae90b508c2cbc95d3b8d4
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.1"
+  flutter:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_rust_bridge:
+    dependency: transitive
+    description:
+      name: flutter_rust_bridge
+      sha256: f703c4b50e253e53efc604d50281bbaefe82d615856f8ae1e7625518ae252e98
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.0"
+  freezed_annotation:
+    dependency: transitive
+    description:
+      name: freezed_annotation
+      sha256: c2e2d632dd9b8a2b7751117abcfc2b4888ecfe181bd9fca7170d9ef02e595fe2
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.4"
+  frontend_server_client:
+    dependency: transitive
+    description:
+      name: frontend_server_client
+      sha256: f64a0333a82f30b0cca061bc3d143813a486dc086b574bfb233b7c1372427694
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.0"
+  glob:
+    dependency: transitive
+    description:
+      name: glob
+      sha256: "0e7014b3b7d4dac1ca4d6114f82bf1782ee86745b9b42a92c9289c23d8a0ab63"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  http_multi_server:
+    dependency: transitive
+    description:
+      name: http_multi_server
+      sha256: aa6199f908078bb1c5efb8d8638d4ae191aac11b311132c3ef48ce352fb52ef8
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.2"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      sha256: "2aa08ce0341cc9b354a498388e30986515406668dbcc4f7c950c3e715496693b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.2"
+  io:
+    dependency: transitive
+    description:
+      name: io
+      sha256: dfd5a80599cf0165756e3181807ed3e77daf6dd4137caaad72d0b7931597650b
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.5"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      sha256: c1b2e9b5ea78c45e1a0788d29606ba27dc5f71f019f32ca5140f61ef071838cf
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.1"
+  json_annotation:
+    dependency: transitive
+    description:
+      name: json_annotation
+      sha256: "1ce844379ca14835a50d2f019a3099f419082cfdd231cd86a142af94dd5c6bb1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.9.0"
+  lints:
+    dependency: "direct dev"
+    description:
+      name: lints
+      sha256: cbf8d4b858bb0134ef3ef87841abdf8d63bfc255c266b7bf6b39daa1085c4290
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.0"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      sha256: c8245ada5f1717ed44271ed1c26b8ce85ca3228fd2ffdb75468ab01979309d61
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.0"
+  macros:
+    dependency: transitive
+    description:
+      name: macros
+      sha256: "0acaed5d6b7eab89f63350bccd82119e6c602df0f391260d0e32b5e23db79536"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.1.2-main.4"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      sha256: d2323aa2060500f906aa31a895b4030b6da3ebdcc5619d14ce1aada65cd161cb
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.12.16+1"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      sha256: f7142bb1154231d7ea5f96bc7bde4bda2a0945d2806bb11670e30b850d56bdec
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.11.1"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      sha256: bdb68674043280c3428e9ec998512fb681678676b3c54e773629ffe74419f8c7
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.15.0"
+  mime:
+    dependency: transitive
+    description:
+      name: mime
+      sha256: "41a20518f0cb1256669420fdba0cd90d21561e560ac240f26ef8322e45bb7ed6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.0"
+  node_preamble:
+    dependency: transitive
+    description:
+      name: node_preamble
+      sha256: "6e7eac89047ab8a8d26cf16127b5ed26de65209847630400f9aefd7cd5c730db"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.2"
+  nostr_sdk:
+    dependency: "direct main"
+    description:
+      path: "."
+      ref: deb74a974fa0a767b91adc7b88eae5495d94931e
+      resolved-ref: deb74a974fa0a767b91adc7b88eae5495d94931e
+      url: "https://github.com/rust-nostr/nostr-sdk-flutter.git"
+    source: git
+    version: "0.37.0"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      sha256: "92d4488434b520a62570293fbd33bb556c7d49230791c1b4bbd973baf6d2dc67"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.1"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      sha256: "087ce49c3f0dc39180befefc60fdb4acd8f8620e5682fe2476afd0b3688bb4af"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.9.0"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      sha256: "4820fbfdb9478b1ebae27888254d445073732dae3d6ea81f0b7e06d5dedc3f02"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.8"
+  pool:
+    dependency: transitive
+    description:
+      name: pool
+      sha256: "20fe868b6314b322ea036ba325e6fc0711a22948856475e2c2b6306e8ab39c2a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.5.1"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      sha256: "7b3cfbf654f3edd0c6298ecd5be782ce997ddf0e00531b9464b55245185bbbbd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.5"
+  shelf:
+    dependency: transitive
+    description:
+      name: shelf
+      sha256: ad29c505aee705f41a4d8963641f91ac4cee3c8fad5947e033390a7bd8180fa4
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.1"
+  shelf_packages_handler:
+    dependency: transitive
+    description:
+      name: shelf_packages_handler
+      sha256: "89f967eca29607c933ba9571d838be31d67f53f6e4ee15147d5dc2934fee1b1e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.2"
+  shelf_static:
+    dependency: transitive
+    description:
+      name: shelf_static
+      sha256: c87c3875f91262785dade62d135760c2c69cb217ac759485334c5857ad89f6e3
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.3"
+  shelf_web_socket:
+    dependency: transitive
+    description:
+      name: shelf_web_socket
+      sha256: cc36c297b52866d203dbf9332263c94becc2fe0ceaa9681d07b6ef9807023b67
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.1"
+  sky_engine:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.99"
+  source_map_stack_trace:
+    dependency: transitive
+    description:
+      name: source_map_stack_trace
+      sha256: c0713a43e323c3302c2abe2a1cc89aa057a387101ebd280371d6a6c9fa68516b
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  source_maps:
+    dependency: transitive
+    description:
+      name: source_maps
+      sha256: "190222579a448b03896e0ca6eca5998fa810fda630c1d65e2f78b3f638f54812"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.10.13"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.10.0"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      sha256: "73713990125a6d93122541237550ee3352a2d84baad52d375a4cad2eb9b7ce0b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.11.1"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      sha256: ba2aa5d8cc609d96bbb2899c28934f9e1af5cddbd60a827822ea467161eb54e7
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      sha256: "556692adab6cfa87322a115640c11f13cb77b3f076ddcc5d6ae3c20242bedcde"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.0"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      sha256: a29248a84fbb7c79282b40b8c72a1209db169a2e0542bce341da992fe1bc7e84
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.1"
+  test:
+    dependency: "direct dev"
+    description:
+      name: test
+      sha256: "43490fe4c0f5ecb898f3fa1cdcdad8d521d7f6ff17ebdc4e8cd32b2e99524a20"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.25.13"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      sha256: fb31f383e2ee25fbbfe06b40fe21e1e458d14080e3c67e7ba0acfde4df4e0bbd
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.4"
+  test_core:
+    dependency: transitive
+    description:
+      name: test_core
+      sha256: "84d17c3486c8dfdbe5e12a50c8ae176d15e2a771b96909a9442b40173649ccaa"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.6.8"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      sha256: f9049c039ebfeb4cf7a7104a675823cd72dba8297f264b6637062516699fa006
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.0"
+  vector_math:
+    dependency: transitive
+    description:
+      name: vector_math
+      sha256: "80b3257d1492ce4d091729e3a67a60407d227c27241d6927be0130c98e741803"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.4"
+  vm_service:
+    dependency: transitive
+    description:
+      name: vm_service
+      sha256: "5c5f338a667b4c644744b661f309fb8080bb94b18a7e91ef1dbd343bed00ed6d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "14.2.5"
+  watcher:
+    dependency: transitive
+    description:
+      name: watcher
+      sha256: "69da27e49efa56a15f8afe8f4438c4ec02eff0a117df1b22ea4aad194fe1c104"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
+  web:
+    dependency: transitive
+    description:
+      name: web
+      sha256: "97da13628db363c635202ad97068d47c5b8aa555808e7a9411963c533b449b27"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.5.1"
+  web_socket:
+    dependency: transitive
+    description:
+      name: web_socket
+      sha256: "3c12d96c0c9a4eec095246debcea7b86c0324f22df69893d538fcc6f1b8cce83"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.1.6"
+  web_socket_channel:
+    dependency: transitive
+    description:
+      name: web_socket_channel
+      sha256: "9f187088ed104edd8662ca07af4b124465893caf063ba29758f97af57e61da8f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.1"
+  webkit_inspection_protocol:
+    dependency: transitive
+    description:
+      name: webkit_inspection_protocol
+      sha256: "87d3f2333bb240704cd3f1c6b5b7acd8a10e7f0bc28c28dcf14e782014f4a572"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.1"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      sha256: "75769501ea3489fca56601ff33454fe45507ea3bfb014161abc3b43ae25989d5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.2"
+sdks:
+  dart: ">=3.5.3 <4.0.0"
+  flutter: ">=3.3.0"
diff --git a/book/snippets/flutter/pubspec.yaml b/book/snippets/flutter/pubspec.yaml
new file mode 100644
index 000000000..667576acd
--- /dev/null
+++ b/book/snippets/flutter/pubspec.yaml
@@ -0,0 +1,17 @@
+name: nostr_sdk_snippets_flutter
+description: "A sample command-line application."
+version: 1.0.0
+publish_to: 'none'
+
+environment:
+  sdk: '>=3.0.0 <4.0.0'
+
+dependencies:
+  nostr_sdk:
+    git:
+      url: https://github.com/rust-nostr/nostr-sdk-flutter.git
+      ref: deb74a974fa0a767b91adc7b88eae5495d94931e
+
+dev_dependencies:
+  lints: ^3.0.0
+  test: ^1.24.9
diff --git a/book/snippets/justfile b/book/snippets/justfile
index 3341c41a1..754116fb6 100644
--- a/book/snippets/justfile
+++ b/book/snippets/justfile
@@ -1,4 +1,4 @@
-test: rust python js kotlin swift
+test: rust python js kotlin flutter swift
 
 rust:
 	cd rust && cargo build
@@ -12,5 +12,8 @@ js:
 kotlin:
 	cd kotlin && just test
 
+flutter:
+	cd flutter && just test
+
 swift:
 	cd swift && just test
diff --git a/book/src/sdk/hello.md b/book/src/sdk/hello.md
index c7b22fb29..74d099a5f 100644
--- a/book/src/sdk/hello.md
+++ b/book/src/sdk/hello.md
@@ -55,7 +55,9 @@ The first step is to generate random keys needed for the client and construct th
 <div slot="title">Flutter</div>
 <section>
 
-TODO
+```dart,ignore
+{{#include ../../snippets/flutter/lib/hello.dart:client}}
+```
 
 </section>
 </custom-tabs>
@@ -113,7 +115,9 @@ Next, add some relays to your client and connect to them.
 <div slot="title">Flutter</div>
 <section>
 
-TODO
+```dart,ignore
+{{#include ../../snippets/flutter/lib/hello.dart:connect}}
+```
 
 </section>
 </custom-tabs>
@@ -173,7 +177,9 @@ build a text note with the [EventBuilder](event/builder.md) and publish it to re
 <div slot="title">Flutter</div>
 <section>
 
-TODO
+```dart,ignore
+{{#include ../../snippets/flutter/lib/hello.dart:publish}}
+```
 
 </section>
 </custom-tabs>
@@ -231,7 +237,9 @@ Published the event, you can inspect the output to ensure everything worked corr
 <div slot="title">Flutter</div>
 <section>
 
-TODO
+```dart,ignore
+{{#include ../../snippets/flutter/lib/hello.dart:output}}
+```
 
 </section>
 </custom-tabs>
@@ -289,7 +297,9 @@ Here’s the full example that includes all the steps from generating keys to in
 <div slot="title">Flutter</div>
 <section>
 
-TODO
+```dart,ignore
+{{#include ../../snippets/flutter/lib/hello.dart:full}}
+```
 
 </section>
 </custom-tabs>