try to use dart as backend language

This commit is contained in:
Peter Siegmund
2025-11-15 09:16:09 +01:00
parent b02a306595
commit 1cfbf0e78b
17 changed files with 757 additions and 1 deletions

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.gitignore vendored Normal file
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**/.idea/libraries
**/.idea/copilot.*

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"backgroundColor": "#000",
"format": "png",
"language": "de-DE",
"output": "lvgl"
"output": "lvgl_binary"
}
}

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.dockerignore
Dockerfile
build/
.dart_tool/
.git/
.github/
.gitignore
.idea/
.packages

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server/cinema/.gitignore vendored Normal file
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# https://dart.dev/guides/libraries/private-files
# Created by `dart pub`
.dart_tool/

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server/cinema/.idea/.gitignore generated vendored Normal file
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# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

6
server/cinema/.idea/misc.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectRootManager">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>

8
server/cinema/.idea/modules.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/cinema.iml" filepath="$PROJECT_DIR$/cinema.iml" />
</modules>
</component>
</project>

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server/cinema/.idea/vcs.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
</component>
</project>

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## 1.0.0
- Initial version.

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server/cinema/Dockerfile Normal file
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# Use latest stable channel SDK.
FROM dart:stable AS build
# Resolve app dependencies.
WORKDIR /app
COPY pubspec.* ./
RUN dart pub get
# Copy app source code (except anything in .dockerignore) and AOT compile app.
COPY . .
RUN dart compile exe bin/server.dart -o bin/server
# Build minimal serving image from AOT-compiled `/server`
# and the pre-built AOT-runtime in the `/runtime/` directory of the base image.
FROM scratch
COPY --from=build /runtime/ /
COPY --from=build /app/bin/server /app/bin/
# Start server.
EXPOSE 8080
CMD ["/app/bin/server"]

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server/cinema/README.md Normal file
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A server app built using [Shelf](https://pub.dev/packages/shelf),
configured to enable running with [Docker](https://www.docker.com/).
This sample code handles HTTP GET requests to `/` and `/echo/<message>`
# Running the sample
## Running with the Dart SDK
You can run the example with the [Dart SDK](https://dart.dev/get-dart)
like this:
```
$ dart run bin/server.dart
Server listening on port 8080
```
And then from a second terminal:
```
$ curl http://0.0.0.0:8080
Hello, World!
$ curl http://0.0.0.0:8080/echo/I_love_Dart
I_love_Dart
```
## Running with Docker
If you have [Docker Desktop](https://www.docker.com/get-started) installed, you
can build and run with the `docker` command:
```
$ docker build . -t myserver
$ docker run -it -p 8080:8080 myserver
Server listening on port 8080
```
And then from a second terminal:
```
$ curl http://0.0.0.0:8080
Hello, World!
$ curl http://0.0.0.0:8080/echo/I_love_Dart
I_love_Dart
```
You should see the logging printed in the first terminal:
```
2021-05-06T15:47:04.620417 0:00:00.000158 GET [200] /
2021-05-06T15:47:08.392928 0:00:00.001216 GET [200] /echo/I_love_Dart
```

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# 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:
# - path/to/excluded/files/**
# 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

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import 'dart:async';
import 'dart:io';
import 'package:shelf/shelf.dart';
import 'package:shelf/shelf_io.dart' as shelf_io;
import 'package:shelf_router/shelf_router.dart';
import 'package:shelf_web_socket/shelf_web_socket.dart';
final List<dynamic> clients = [];
// Configure routes.
final _router = Router()
..get('/', _rootHandler)
..get('/echo/<message>', _echoHandler);
Response _rootHandler(Request req) {
return Response.ok('Hello, World!\n');
}
Response _echoHandler(Request request) {
final message = request.params['message'];
return Response.ok('$message\n');
}
void main(List<String> args) async {
// Use any available host or container IP (usually `0.0.0.0`).
final ip = InternetAddress.anyIPv4;
// Configure a pipeline that logs requests.
final handler = Pipeline().addMiddleware(logRequests()).addHandler(_router.call);
var wsHandler = webSocketHandler((webSocket, _) {
clients.add(webSocket);
print('Client connected, total: ${clients.length}');
webSocket.stream.listen(
(message) {
webSocket.sink.add('echo $message');
},
onDone: () {
clients.remove(webSocket);
print('Client disconnected, total: ${clients.length}');
},
onError: (error) {
clients.remove(webSocket);
print('Client error: $error');
},
cancelOnError: true,
);
});
FutureOr<Response> combinedHandler(Request request) {
if (request.url.path == 'ws') {
return wsHandler(request);
}
return handler(request);
}
// For running in containers, we respect the PORT environment variable.
final port = int.parse(Platform.environment['PORT'] ?? '8080');
final server = await shelf_io.serve(combinedHandler, ip, port).then((server) {
print('Serving at http|ws://${server.address.host}:${server.port}');
});
}
// Broadcast to all clients
void broadcast(String message) {
for (final client in clients) {
client.sink.add(message);
}
}

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server/cinema/cinema.iml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<module type="WEB_MODULE" version="4">
<component name="NewModuleRootManager" inherit-compiler-output="true">
<exclude-output />
<content url="file://$MODULE_DIR$">
<excludeFolder url="file://$MODULE_DIR$/.dart_tool" />
<excludeFolder url="file://$MODULE_DIR$/.pub" />
<excludeFolder url="file://$MODULE_DIR$/build" />
</content>
<orderEntry type="sourceFolder" forTests="false" />
<orderEntry type="library" name="Dart SDK" level="project" />
<orderEntry type="library" name="Dart Packages" level="project" />
</component>
</module>

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server/cinema/pubspec.lock Normal file
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# Generated by pub
# See https://dart.dev/tools/pub/glossary#lockfile
packages:
_fe_analyzer_shared:
dependency: transitive
description:
name: _fe_analyzer_shared
sha256: "5b7468c326d2f8a4f630056404ca0d291ade42918f4a3c6233618e724f39da8e"
url: "https://pub.dev"
source: hosted
version: "92.0.0"
analyzer:
dependency: transitive
description:
name: analyzer
sha256: "70e4b1ef8003c64793a9e268a551a82869a8a96f39deb73dea28084b0e8bf75e"
url: "https://pub.dev"
source: hosted
version: "9.0.0"
archive:
dependency: transitive
description:
name: archive
sha256: "2fde1607386ab523f7a36bb3e7edb43bd58e6edaf2ffb29d8a6d578b297fdbbd"
url: "https://pub.dev"
source: hosted
version: "4.0.7"
args:
dependency: transitive
description:
name: args
sha256: d0481093c50b1da8910eb0bb301626d4d8eb7284aa739614d2b394ee09e3ea04
url: "https://pub.dev"
source: hosted
version: "2.7.0"
async:
dependency: transitive
description:
name: async
sha256: "758e6d74e971c3e5aceb4110bfd6698efc7f501675bcfe0c775459a8140750eb"
url: "https://pub.dev"
source: hosted
version: "2.13.0"
boolean_selector:
dependency: transitive
description:
name: boolean_selector
sha256: "8aab1771e1243a5063b8b0ff68042d67334e3feab9e95b9490f9a6ebf73b42ea"
url: "https://pub.dev"
source: hosted
version: "2.1.2"
cli_config:
dependency: transitive
description:
name: cli_config
sha256: ac20a183a07002b700f0c25e61b7ee46b23c309d76ab7b7640a028f18e4d99ec
url: "https://pub.dev"
source: hosted
version: "0.2.0"
collection:
dependency: transitive
description:
name: collection
sha256: "2f5709ae4d3d59dd8f7cd309b4e023046b57d8a6c82130785d2b0e5868084e76"
url: "https://pub.dev"
source: hosted
version: "1.19.1"
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: "5da775aa218eaf2151c721b16c01c7676fbfdd99cebba2bf64e8b807a28ff94d"
url: "https://pub.dev"
source: hosted
version: "1.15.0"
crypto:
dependency: transitive
description:
name: crypto
sha256: c8ea0233063ba03258fbcf2ca4d6dadfefe14f02fab57702265467a19f27fadf
url: "https://pub.dev"
source: hosted
version: "3.0.7"
ffi:
dependency: transitive
description:
name: ffi
sha256: "289279317b4b16eb2bb7e271abccd4bf84ec9bdcbe999e278a94b804f5630418"
url: "https://pub.dev"
source: hosted
version: "2.1.4"
file:
dependency: transitive
description:
name: file
sha256: a3b4f84adafef897088c160faf7dfffb7696046cb13ae90b508c2cbc95d3b8d4
url: "https://pub.dev"
source: hosted
version: "7.0.1"
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: c3f1ee72c96f8f78935e18aa8cecced9ab132419e8625dc187e1c2408efc20de
url: "https://pub.dev"
source: hosted
version: "2.1.3"
http:
dependency: "direct dev"
description:
name: http
sha256: "87721a4a50b19c7f1d49001e51409bddc46303966ce89a65af4f4e6004896412"
url: "https://pub.dev"
source: hosted
version: "1.6.0"
http_methods:
dependency: transitive
description:
name: http_methods
sha256: "6bccce8f1ec7b5d701e7921dca35e202d425b57e317ba1a37f2638590e29e566"
url: "https://pub.dev"
source: hosted
version: "1.1.1"
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: "178d74305e7866013777bab2c3d8726205dc5a4dd935297175b19a23a2e66571"
url: "https://pub.dev"
source: hosted
version: "4.1.2"
image:
dependency: "direct main"
description:
name: image
sha256: "4e973fcf4caae1a4be2fa0a13157aa38a8f9cb049db6529aa00b4d71abc4d928"
url: "https://pub.dev"
source: hosted
version: "4.5.4"
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: "53385261521cc4a0c4658fd0ad07a7d14591cf8fc33abbceae306ddb974888dc"
url: "https://pub.dev"
source: hosted
version: "0.7.2"
lints:
dependency: "direct dev"
description:
name: lints
sha256: a5e2b223cb7c9c8efdc663ef484fdd95bb243bff242ef5b13e26883547fce9a0
url: "https://pub.dev"
source: hosted
version: "6.0.0"
logging:
dependency: transitive
description:
name: logging
sha256: c8245ada5f1717ed44271ed1c26b8ce85ca3228fd2ffdb75468ab01979309d61
url: "https://pub.dev"
source: hosted
version: "1.3.0"
matcher:
dependency: transitive
description:
name: matcher
sha256: dc58c723c3c24bf8d3e2d3ad3f2f9d7bd9cf43ec6feaa64181775e60190153f2
url: "https://pub.dev"
source: hosted
version: "0.12.17"
meta:
dependency: transitive
description:
name: meta
sha256: "23f08335362185a5ea2ad3a4e597f1375e78bce8a040df5c600c8d3552ef2394"
url: "https://pub.dev"
source: hosted
version: "1.17.0"
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"
package_config:
dependency: transitive
description:
name: package_config
sha256: f096c55ebb7deb7e384101542bfba8c52696c1b56fca2eb62827989ef2353bbc
url: "https://pub.dev"
source: hosted
version: "2.2.0"
path:
dependency: transitive
description:
name: path
sha256: "75cca69d1490965be98c73ceaea117e8a04dd21217b37b292c9ddbec0d955bc5"
url: "https://pub.dev"
source: hosted
version: "1.9.1"
petitparser:
dependency: transitive
description:
name: petitparser
sha256: "1a97266a94f7350d30ae522c0af07890c70b8e62c71e8e3920d1db4d23c057d1"
url: "https://pub.dev"
source: hosted
version: "7.0.1"
pool:
dependency: transitive
description:
name: pool
sha256: "978783255c543aa3586a1b3c21f6e9d720eb315376a915872c61ef8b5c20177d"
url: "https://pub.dev"
source: hosted
version: "1.5.2"
posix:
dependency: transitive
description:
name: posix
sha256: "6323a5b0fa688b6a010df4905a56b00181479e6d10534cecfecede2aa55add61"
url: "https://pub.dev"
source: hosted
version: "6.0.3"
pub_semver:
dependency: transitive
description:
name: pub_semver
sha256: "5bfcf68ca79ef689f8990d1160781b4bad40a3bd5e5218ad4076ddb7f4081585"
url: "https://pub.dev"
source: hosted
version: "2.2.0"
shelf:
dependency: "direct main"
description:
name: shelf
sha256: e7dd780a7ffb623c57850b33f43309312fc863fb6aa3d276a754bb299839ef12
url: "https://pub.dev"
source: hosted
version: "1.4.2"
shelf_packages_handler:
dependency: transitive
description:
name: shelf_packages_handler
sha256: "89f967eca29607c933ba9571d838be31d67f53f6e4ee15147d5dc2934fee1b1e"
url: "https://pub.dev"
source: hosted
version: "3.0.2"
shelf_router:
dependency: "direct main"
description:
name: shelf_router
sha256: f5e5d492440a7fb165fe1e2e1a623f31f734d3370900070b2b1e0d0428d59864
url: "https://pub.dev"
source: hosted
version: "1.1.4"
shelf_static:
dependency: transitive
description:
name: shelf_static
sha256: c87c3875f91262785dade62d135760c2c69cb217ac759485334c5857ad89f6e3
url: "https://pub.dev"
source: hosted
version: "1.1.3"
shelf_web_socket:
dependency: "direct main"
description:
name: shelf_web_socket
sha256: "3632775c8e90d6c9712f883e633716432a27758216dfb61bd86a8321c0580925"
url: "https://pub.dev"
source: hosted
version: "3.0.0"
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: "254ee5351d6cb365c859e20ee823c3bb479bf4a293c22d17a9f1bf144ce86f7c"
url: "https://pub.dev"
source: hosted
version: "1.10.1"
stack_trace:
dependency: transitive
description:
name: stack_trace
sha256: "8b27215b45d22309b5cddda1aa2b19bdfec9df0e765f2de506401c071d38d1b1"
url: "https://pub.dev"
source: hosted
version: "1.12.1"
stream_channel:
dependency: transitive
description:
name: stream_channel
sha256: "969e04c80b8bcdf826f8f16579c7b14d780458bd97f56d107d3950fdbeef059d"
url: "https://pub.dev"
source: hosted
version: "2.1.4"
string_scanner:
dependency: transitive
description:
name: string_scanner
sha256: "921cd31725b72fe181906c6a94d987c78e3b98c2e205b397ea399d4054872b43"
url: "https://pub.dev"
source: hosted
version: "1.4.1"
term_glyph:
dependency: transitive
description:
name: term_glyph
sha256: "7f554798625ea768a7518313e58f83891c7f5024f88e46e7182a4558850a4b8e"
url: "https://pub.dev"
source: hosted
version: "1.2.2"
test:
dependency: "direct dev"
description:
name: test
sha256: "8f0eb7fa76b7d05a4f3707e0dbd581babef5b0915ca508b757cf15d0cabb56cb"
url: "https://pub.dev"
source: hosted
version: "1.27.0"
test_api:
dependency: transitive
description:
name: test_api
sha256: "19a78f63e83d3a61f00826d09bc2f60e191bf3504183c001262be6ac75589fb8"
url: "https://pub.dev"
source: hosted
version: "0.7.8"
test_core:
dependency: transitive
description:
name: test_core
sha256: bad9916601a4f2ef6e4dbc466fb712e4b42cf4917c3fd428b018f51984fce13b
url: "https://pub.dev"
source: hosted
version: "0.6.13"
typed_data:
dependency: transitive
description:
name: typed_data
sha256: f9049c039ebfeb4cf7a7104a675823cd72dba8297f264b6637062516699fa006
url: "https://pub.dev"
source: hosted
version: "1.4.0"
vm_service:
dependency: transitive
description:
name: vm_service
sha256: "45caa6c5917fa127b5dbcfbd1fa60b14e583afdc08bfc96dda38886ca252eb60"
url: "https://pub.dev"
source: hosted
version: "15.0.2"
watcher:
dependency: transitive
description:
name: watcher
sha256: "592ab6e2892f67760543fb712ff0177f4ec76c031f02f5b4ff8d3fc5eb9fb61a"
url: "https://pub.dev"
source: hosted
version: "1.1.4"
web:
dependency: transitive
description:
name: web
sha256: "868d88a33d8a87b18ffc05f9f030ba328ffefba92d6c127917a2ba740f9cfe4a"
url: "https://pub.dev"
source: hosted
version: "1.1.1"
web_socket:
dependency: transitive
description:
name: web_socket
sha256: "34d64019aa8e36bf9842ac014bb5d2f5586ca73df5e4d9bf5c936975cae6982c"
url: "https://pub.dev"
source: hosted
version: "1.0.1"
web_socket_channel:
dependency: transitive
description:
name: web_socket_channel
sha256: d645757fb0f4773d602444000a8131ff5d48c9e47adfe9772652dd1a4f2d45c8
url: "https://pub.dev"
source: hosted
version: "3.0.3"
webkit_inspection_protocol:
dependency: transitive
description:
name: webkit_inspection_protocol
sha256: "87d3f2333bb240704cd3f1c6b5b7acd8a10e7f0bc28c28dcf14e782014f4a572"
url: "https://pub.dev"
source: hosted
version: "1.2.1"
xml:
dependency: transitive
description:
name: xml
sha256: "971043b3a0d3da28727e40ed3e0b5d18b742fa5a68665cca88e74b7876d5e025"
url: "https://pub.dev"
source: hosted
version: "6.6.1"
yaml:
dependency: transitive
description:
name: yaml
sha256: b9da305ac7c39faa3f030eccd175340f968459dae4af175130b3fc47e40d76ce
url: "https://pub.dev"
source: hosted
version: "3.1.3"
sdks:
dart: ">=3.9.0 <4.0.0"

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name: cinema
description: A server app using the shelf package and Docker.
version: 1.0.0
# repository: https://github.com/my_org/my_repo
environment:
sdk: ^3.9.0
dependencies:
image: ^4.5.4
shelf: ^1.4.2
shelf_router: ^1.1.2
shelf_web_socket: ^3.0.0
dev_dependencies:
http: ^1.2.2
lints: ^6.0.0
test: ^1.25.6

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import 'dart:io';
import 'package:http/http.dart';
import 'package:test/test.dart';
void main() {
final port = '8080';
final host = 'http://0.0.0.0:$port';
late Process p;
setUp(() async {
p = await Process.start(
'dart',
['run', 'bin/server.dart'],
environment: {'PORT': port},
);
// Wait for server to start and print to stdout.
await p.stdout.first;
});
tearDown(() => p.kill());
test('Root', () async {
final response = await get(Uri.parse('$host/'));
expect(response.statusCode, 200);
expect(response.body, 'Hello, World!\n');
});
test('Echo', () async {
final response = await get(Uri.parse('$host/echo/hello'));
expect(response.statusCode, 200);
expect(response.body, 'hello\n');
});
test('404', () async {
final response = await get(Uri.parse('$host/foobar'));
expect(response.statusCode, 404);
});
}