Add initial implementation of comfyui_api_sdk with API models and examples

This commit is contained in:
Menno van Leeuwen 2025-03-20 13:51:02 +01:00
commit 1f9409ce0e
Signed by: vleeuwenmenno
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.vscode/launch.json vendored Normal file
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{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "comfyui-api-sdk",
"request": "launch",
"type": "dart",
"program": "example/example.dart"
}
]
}

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README.md Normal file
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// Found requests:
// To get the current queue
// GET ${host}/queue
// To view a image
// GET ${host}/api/view?filename=ComfyUI_00006_.png
// To get the history of the queue
// GET ${host}/api/history?max_items=64
// To post a new image generation request to the queue
// POST ${host}/api/prompt
// Content-Type: application/json
// { ... }
// To request a list of all the available models
// GET ${host}/api/experiment/models
// To request a list of checkpoints (Or details for a specific checkpoint)
// GET ${host}/api/experiment/models/checkpoints
// GET ${host}/api/view_metadata/checkpoints?filename=${pathAndFileName}
// To request a list of loras (Or details for a specific lora)
// GET ${host}/api/experiment/models/loras
// GET ${host}/api/view_metadata/loras?filename=${pathAndFileName}
// To request a list of VAEs (Or details for a specific VAE)
// GET ${host}/api/experiment/models/vae
// GET ${host}/api/view_metadata/vae?filename=${pathAndFileName}
// To request a list of upscale models (Or details for a specific upscale model)
// GET ${host}/api/experiment/models/upscale_models
// GET ${host}/api/view_metadata/upscale_models?filename=${pathAndFileName}
// To request a list of embeddings (Or details for a specific embedding)
// GET ${host}/api/experiment/models/embeddings
// GET ${host}/api/view_metadata/embeddings?filename=${pathAndFileName}
// To get object info (Checkpoints, models, loras etc)
// GET ${host}/api/object_info
// WebSocket for progress updates
// ws://${host}/ws?clientId=${clientId}
// Final question
// How do we figure out the clientId

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"name": "checkpoints",
"folders": [
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"/data/models/Stable-diffusion",
"/stable-diffusion/output/checkpoints"
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"/stable-diffusion/models/diffusion_models",
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{
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"folders": ["/stable-diffusion/models/clip_vision"]
},
{
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"folders": ["/stable-diffusion/models/style_models"]
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{
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"folders": ["/stable-diffusion/models/embeddings", "/data/embeddings"]
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{ "name": "diffusers", "folders": ["/stable-diffusion/models/diffusers"] },
{ "name": "vae_approx", "folders": ["/stable-diffusion/models/vae_approx"] },
{
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"/data/models/ControlNet"
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{
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"/data/models/ESRGAN",
"/data/models/SwinIR",
"/data/models/GFPGAN"
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},
{ "name": "photomaker", "folders": ["/stable-diffusion/models/photomaker"] },
{ "name": "classifiers", "folders": ["/stable-diffusion/models/classifiers"] }
]

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"slot_index": 0
}
],
"properties": { "Node name for S&R": "VAEDecode" },
"widgets_values": []
},
{
"id": 9,
"type": "SaveImage",
"pos": [1451, 189],
"size": [210, 270],
"flags": {},
"order": 6,
"mode": 0,
"inputs": [{ "name": "images", "type": "IMAGE", "link": 9 }],
"outputs": [],
"properties": {},
"widgets_values": ["ComfyUI"]
},
{
"id": 4,
"type": "CheckpointLoaderSimple",
"pos": [26, 474],
"size": [315, 98],
"flags": {},
"order": 1,
"mode": 0,
"inputs": [],
"outputs": [
{
"name": "MODEL",
"type": "MODEL",
"links": [1],
"slot_index": 0
},
{
"name": "CLIP",
"type": "CLIP",
"links": [3, 5],
"slot_index": 1
},
{
"name": "VAE",
"type": "VAE",
"links": [8],
"slot_index": 2
}
],
"properties": { "Node name for S&R": "CheckpointLoaderSimple" },
"widgets_values": [
"Anime/autismmixSDXL_autismmixConfetti.safetensors"
]
}
],
"links": [
[1, 4, 0, 3, 0, "MODEL"],
[2, 5, 0, 3, 3, "LATENT"],
[3, 4, 1, 6, 0, "CLIP"],
[4, 6, 0, 3, 1, "CONDITIONING"],
[5, 4, 1, 7, 0, "CLIP"],
[6, 7, 0, 3, 2, "CONDITIONING"],
[7, 3, 0, 8, 0, "LATENT"],
[8, 4, 2, 8, 1, "VAE"],
[9, 8, 0, 9, 0, "IMAGE"]
],
"groups": [],
"config": {},
"extra": {
"ds": {
"scale": 0.9090909090909091,
"offset": [114.45999999999988, -114.63999999999956]
}
},
"version": 0.4
}
},
"client_id": "eda4bf07c812424dbb9e964c5e000ade"
},
["9"]
]
]
}

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import 'dart:async';
import 'dart:convert';
import 'package:http/http.dart' as http;
import 'package:uuid/uuid.dart';
import 'package:web_socket_channel/web_socket_channel.dart';
class ComfyUiApi {
final String host;
final String clientId;
final http.Client _httpClient;
WebSocketChannel? _wsChannel;
final StreamController<Map<String, dynamic>> _progressController =
StreamController.broadcast();
/// Stream of progress updates from ComfyUI
Stream<Map<String, dynamic>> get progressUpdates =>
_progressController.stream;
/// Creates a new ComfyUI API client
///
/// [host] The host of the ComfyUI server (e.g. 'http://localhost:8188')
/// [clientId] Optional client ID, will be automatically generated if not provided
ComfyUiApi({
required this.host,
String? clientId,
http.Client? httpClient,
}) : clientId = clientId ?? const Uuid().v4(),
_httpClient = httpClient ?? http.Client();
/// Connects to the WebSocket for progress updates
Future<void> connectWebSocket() async {
final wsUrl =
'ws://${host.replaceFirst(RegExp(r'^https?://'), '')}/ws?clientId=$clientId';
_wsChannel = WebSocketChannel.connect(Uri.parse(wsUrl));
_wsChannel!.stream.listen((message) {
final data = jsonDecode(message);
_progressController.add(data);
}, onError: (error) {
print('WebSocket error: $error');
}, onDone: () {
print('WebSocket connection closed');
});
}
/// Closes the WebSocket connection and cleans up resources
void dispose() {
_wsChannel?.sink.close();
_progressController.close();
_httpClient.close();
}
/// Gets the current queue status
Future<Map<String, dynamic>> getQueue() async {
final response = await _httpClient.get(Uri.parse('$host/queue'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets the history of the queue
Future<Map<String, dynamic>> getHistory({int maxItems = 64}) async {
final response = await _httpClient
.get(Uri.parse('$host/api/history?max_items=$maxItems'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets image data by filename
Future<List<int>> getImage(String filename) async {
final response =
await _httpClient.get(Uri.parse('$host/api/view?filename=$filename'));
_validateResponse(response);
return response.bodyBytes;
}
/// Gets a list of all available models
Future<Map<String, dynamic>> getModels() async {
final response =
await _httpClient.get(Uri.parse('$host/api/experiment/models'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets a list of checkpoints
Future<Map<String, dynamic>> getCheckpoints() async {
final response = await _httpClient
.get(Uri.parse('$host/api/experiment/models/checkpoints'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets details for a specific checkpoint
Future<Map<String, dynamic>> getCheckpointDetails(
String pathAndFileName) async {
final response = await _httpClient.get(Uri.parse(
'$host/api/view_metadata/checkpoints?filename=$pathAndFileName'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets a list of LoRAs
Future<Map<String, dynamic>> getLoras() async {
final response =
await _httpClient.get(Uri.parse('$host/api/experiment/models/loras'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets details for a specific LoRA
Future<Map<String, dynamic>> getLoraDetails(String pathAndFileName) async {
final response = await _httpClient.get(
Uri.parse('$host/api/view_metadata/loras?filename=$pathAndFileName'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets a list of VAEs
Future<Map<String, dynamic>> getVaes() async {
final response =
await _httpClient.get(Uri.parse('$host/api/experiment/models/vae'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets details for a specific VAE
Future<Map<String, dynamic>> getVaeDetails(String pathAndFileName) async {
final response = await _httpClient.get(
Uri.parse('$host/api/view_metadata/vae?filename=$pathAndFileName'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets a list of upscale models
Future<Map<String, dynamic>> getUpscaleModels() async {
final response = await _httpClient
.get(Uri.parse('$host/api/experiment/models/upscale_models'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets details for a specific upscale model
Future<Map<String, dynamic>> getUpscaleModelDetails(
String pathAndFileName) async {
final response = await _httpClient.get(Uri.parse(
'$host/api/view_metadata/upscale_models?filename=$pathAndFileName'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets a list of embeddings
Future<Map<String, dynamic>> getEmbeddings() async {
final response = await _httpClient
.get(Uri.parse('$host/api/experiment/models/embeddings'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets details for a specific embedding
Future<Map<String, dynamic>> getEmbeddingDetails(
String pathAndFileName) async {
final response = await _httpClient.get(Uri.parse(
'$host/api/view_metadata/embeddings?filename=$pathAndFileName'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets information about all available objects (nodes)
Future<Map<String, dynamic>> getObjectInfo() async {
final response = await _httpClient.get(Uri.parse('$host/api/object_info'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Submits a prompt (workflow) to generate an image
Future<Map<String, dynamic>> submitPrompt(Map<String, dynamic> prompt) async {
final response = await _httpClient.post(
Uri.parse('$host/api/prompt'),
headers: {'Content-Type': 'application/json'},
body: jsonEncode(prompt),
);
_validateResponse(response);
return jsonDecode(response.body);
}
/// Validates HTTP response and throws an exception if needed
void _validateResponse(http.Response response) {
if (response.statusCode < 200 || response.statusCode >= 300) {
throw ComfyUiApiException(
statusCode: response.statusCode,
message: 'API request failed: ${response.body}');
}
}
}
/// Exception thrown when the ComfyUI API returns an error
class ComfyUiApiException implements Exception {
final int statusCode;
final String message;
ComfyUiApiException({required this.statusCode, required this.message});
@override
String toString() => 'ComfyUiApiException: $statusCode - $message';
}

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import 'dart:io';
import 'package:comfyui_api_sdk/comfyui_api_sdk.dart';
void main() async {
// Create the API client
final api = ComfyUiApi(host: 'http://mennos-server:7860');
// Connect to the WebSocket for progress updates
await api.connectWebSocket();
// Listen for progress updates
api.progressUpdates.listen((update) {
print('Progress update: $update');
});
// Get available checkpoints
final checkpoints = await api.getCheckpoints();
print('Available checkpoints: ${checkpoints.keys.join(', ')}');
// Get queue status
final queue = await api.getQueue();
print('Queue status: $queue');
// Submit a basic text-to-image prompt
final promptWorkflow = {
"prompt": {
"3": {
"inputs": {
"seed": 123456789,
"steps": 20,
"cfg": 7,
"sampler_name": "euler_ancestral",
"scheduler": "normal",
"denoise": 1,
"model": ["4", 0],
"positive": ["6", 0],
"negative": ["7", 0],
"latent_image": ["5", 0]
},
"class_type": "KSampler"
},
"4": {
"inputs": {"ckpt_name": "dreamshaper_8.safetensors"},
"class_type": "CheckpointLoaderSimple"
},
"5": {
"inputs": {"width": 512, "height": 512, "batch_size": 1},
"class_type": "EmptyLatentImage"
},
"6": {
"inputs": {
"text": "a beautiful landscape with mountains and a lake",
"clip": ["4", 1]
},
"class_type": "CLIPTextEncode"
},
"7": {
"inputs": {
"text": "ugly, blurry, low quality",
"clip": ["4", 1]
},
"class_type": "CLIPTextEncode"
},
"8": {
"inputs": {
"samples": ["3", 0],
"vae": ["4", 2]
},
"class_type": "VAEDecode"
},
"9": {
"inputs": {
"filename_prefix": "ComfyUI",
"images": ["8", 0]
},
"class_type": "SaveImage"
}
},
"client_id": api.clientId
};
try {
final result = await api.submitPrompt(promptWorkflow);
print('Prompt submitted: $result');
} catch (e) {
print('Error submitting prompt: $e');
}
// Wait for some time to receive WebSocket messages
await Future.delayed(Duration(seconds: 60));
// Clean up
api.dispose();
}

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library comfyui_api_sdk;
export 'src/comfyui_api.dart';
export 'src/models/models.dart';

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import 'dart:async';
import 'dart:convert';
import 'package:http/http.dart' as http;
import 'package:uuid/uuid.dart';
import 'package:web_socket_channel/web_socket_channel.dart';
/// A Dart SDK for interacting with the ComfyUI API
class ComfyUiApi {
final String host;
final String clientId;
final http.Client _httpClient;
WebSocketChannel? _wsChannel;
final StreamController<Map<String, dynamic>> _progressController =
StreamController.broadcast();
/// Stream of progress updates from ComfyUI
Stream<Map<String, dynamic>> get progressUpdates =>
_progressController.stream;
/// Creates a new ComfyUI API client
///
/// [host] The host of the ComfyUI server (e.g. 'http://localhost:8188')
/// [clientId] Optional client ID, will be automatically generated if not provided
ComfyUiApi({
required this.host,
String? clientId,
http.Client? httpClient,
}) : clientId = clientId ?? const Uuid().v4(),
_httpClient = httpClient ?? http.Client();
/// Connects to the WebSocket for progress updates
Future<void> connectWebSocket() async {
final wsUrl =
'ws://${host.replaceFirst(RegExp(r'^https?://'), '')}/ws?clientId=$clientId';
_wsChannel = WebSocketChannel.connect(Uri.parse(wsUrl));
_wsChannel!.stream.listen((message) {
final data = jsonDecode(message);
_progressController.add(data);
}, onError: (error) {
print('WebSocket error: $error');
}, onDone: () {
print('WebSocket connection closed');
});
}
/// Closes the WebSocket connection and cleans up resources
void dispose() {
_wsChannel?.sink.close();
_progressController.close();
_httpClient.close();
}
/// Gets the current queue status
Future<Map<String, dynamic>> getQueue() async {
final response = await _httpClient.get(Uri.parse('$host/queue'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets the history of the queue
Future<Map<String, dynamic>> getHistory({int maxItems = 64}) async {
final response = await _httpClient
.get(Uri.parse('$host/api/history?max_items=$maxItems'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets image data by filename
Future<List<int>> getImage(String filename) async {
final response =
await _httpClient.get(Uri.parse('$host/api/view?filename=$filename'));
_validateResponse(response);
return response.bodyBytes;
}
/// Gets a list of all available models
Future<Map<String, dynamic>> getModels() async {
final response =
await _httpClient.get(Uri.parse('$host/api/experiment/models'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets a list of checkpoints
Future<List<dynamic>> getCheckpoints() async {
final response = await _httpClient
.get(Uri.parse('$host/api/experiment/models/checkpoints'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets details for a specific checkpoint
Future<Map<String, dynamic>> getCheckpointDetails(
String pathAndFileName) async {
final response = await _httpClient.get(Uri.parse(
'$host/api/view_metadata/checkpoints?filename=$pathAndFileName'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets a list of LoRAs
Future<List<dynamic>> getLoras() async {
final response =
await _httpClient.get(Uri.parse('$host/api/experiment/models/loras'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets details for a specific LoRA
Future<Map<String, dynamic>> getLoraDetails(String pathAndFileName) async {
final response = await _httpClient.get(
Uri.parse('$host/api/view_metadata/loras?filename=$pathAndFileName'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets a list of VAEs
Future<List<dynamic>> getVaes() async {
final response =
await _httpClient.get(Uri.parse('$host/api/experiment/models/vae'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets details for a specific VAE
Future<Map<String, dynamic>> getVaeDetails(String pathAndFileName) async {
final response = await _httpClient.get(
Uri.parse('$host/api/view_metadata/vae?filename=$pathAndFileName'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets a list of upscale models
Future<List<dynamic>> getUpscaleModels() async {
final response = await _httpClient
.get(Uri.parse('$host/api/experiment/models/upscale_models'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets details for a specific upscale model
Future<Map<String, dynamic>> getUpscaleModelDetails(
String pathAndFileName) async {
final response = await _httpClient.get(Uri.parse(
'$host/api/view_metadata/upscale_models?filename=$pathAndFileName'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets a list of embeddings
Future<List<dynamic>> getEmbeddings() async {
final response = await _httpClient
.get(Uri.parse('$host/api/experiment/models/embeddings'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets details for a specific embedding
Future<Map<String, dynamic>> getEmbeddingDetails(
String pathAndFileName) async {
final response = await _httpClient.get(Uri.parse(
'$host/api/view_metadata/embeddings?filename=$pathAndFileName'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Gets information about all available objects (nodes)
Future<Map<String, dynamic>> getObjectInfo() async {
final response = await _httpClient.get(Uri.parse('$host/api/object_info'));
_validateResponse(response);
return jsonDecode(response.body);
}
/// Submits a prompt (workflow) to generate an image
Future<Map<String, dynamic>> submitPrompt(Map<String, dynamic> prompt) async {
final response = await _httpClient.post(
Uri.parse('$host/api/prompt'),
headers: {'Content-Type': 'application/json'},
body: jsonEncode(prompt),
);
_validateResponse(response);
return jsonDecode(response.body);
}
/// Validates HTTP response and throws an exception if needed
void _validateResponse(http.Response response) {
if (response.statusCode < 200 || response.statusCode >= 300) {
throw ComfyUiApiException(
statusCode: response.statusCode,
message: 'API request failed: ${response.body}');
}
}
}
/// Exception thrown when the ComfyUI API returns an error
class ComfyUiApiException implements Exception {
final int statusCode;
final String message;
ComfyUiApiException({required this.statusCode, required this.message});
@override
String toString() => 'ComfyUiApiException: $statusCode - $message';
}

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/// Models that represent ComfyUI API responses
/// Represents queue information from ComfyUI
class QueueInfo {
final int queueRunning;
final List<Map<String, dynamic>> queue;
final Map<String, dynamic> queuePending;
QueueInfo({
required this.queueRunning,
required this.queue,
required this.queuePending,
});
factory QueueInfo.fromJson(Map<String, dynamic> json) {
return QueueInfo(
queueRunning: json['queue_running'] as int,
queue: List<Map<String, dynamic>>.from(json['queue'] ?? []),
queuePending: Map<String, dynamic>.from(json['queue_pending'] ?? {}),
);
}
}
/// Represents a prompt execution status
class PromptExecutionStatus {
final String? promptId;
final int? number;
final String? status;
final dynamic error;
PromptExecutionStatus({
this.promptId,
this.number,
this.status,
this.error,
});
factory PromptExecutionStatus.fromJson(Map<String, dynamic> json) {
return PromptExecutionStatus(
promptId: json['prompt_id'] as String?,
number: json['number'] as int?,
status: json['status'] as String?,
error: json['error'],
);
}
}
/// Represents history data
class HistoryItem {
final String promptId;
final Map<String, dynamic> prompt;
final Map<String, dynamic>? outputs;
HistoryItem({
required this.promptId,
required this.prompt,
this.outputs,
});
factory HistoryItem.fromJson(Map<String, dynamic> json) {
return HistoryItem(
promptId: json['prompt_id'] as String,
prompt: Map<String, dynamic>.from(json['prompt'] ?? {}),
outputs: json['outputs'] != null
? Map<String, dynamic>.from(json['outputs'])
: null,
);
}
}
/// Represents a progress update received via WebSocket
class ProgressUpdate {
final String type;
final Map<String, dynamic> data;
ProgressUpdate({
required this.type,
required this.data,
});
factory ProgressUpdate.fromJson(Map<String, dynamic> json) {
return ProgressUpdate(
type: json['type'] as String,
data: Map<String, dynamic>.from(json['data'] ?? {}),
);
}
}

549
pubspec.lock Normal file
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dart_style:
dependency: transitive
description:
name: dart_style
sha256: "27eb0ae77836989a3bc541ce55595e8ceee0992807f14511552a898ddd0d88ac"
url: "https://pub.dev"
source: hosted
version: "3.0.1"
file:
dependency: transitive
description:
name: file
sha256: a3b4f84adafef897088c160faf7dfffb7696046cb13ae90b508c2cbc95d3b8d4
url: "https://pub.dev"
source: hosted
version: "7.0.1"
fixnum:
dependency: transitive
description:
name: fixnum
sha256: b6dc7065e46c974bc7c5f143080a6764ec7a4be6da1285ececdc37be96de53be
url: "https://pub.dev"
source: hosted
version: "1.1.1"
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"
graphs:
dependency: transitive
description:
name: graphs
sha256: "741bbf84165310a68ff28fe9e727332eef1407342fca52759cb21ad8177bb8d0"
url: "https://pub.dev"
source: hosted
version: "2.3.2"
http:
dependency: "direct main"
description:
name: http
sha256: "5895291c13fa8a3bd82e76d5627f69e0d85ca6a30dcac95c4ea19a5d555879c2"
url: "https://pub.dev"
source: hosted
version: "0.13.6"
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"
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"
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: "0a217c6c989d21039f1498c3ed9f3ed71b354e69873f13a8dfc3c9fe76f1b452"
url: "https://pub.dev"
source: hosted
version: "2.1.1"
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: e3641ec5d63ebf0d9b41bd43201a66e3fc79a65db5f61fc181f04cd27aab950c
url: "https://pub.dev"
source: hosted
version: "1.16.0"
mime:
dependency: transitive
description:
name: mime
sha256: "41a20518f0cb1256669420fdba0cd90d21561e560ac240f26ef8322e45bb7ed6"
url: "https://pub.dev"
source: hosted
version: "2.0.0"
mockito:
dependency: "direct main"
description:
name: mockito
sha256: f99d8d072e249f719a5531735d146d8cf04c580d93920b04de75bef6dfb2daf6
url: "https://pub.dev"
source: hosted
version: "5.4.5"
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"
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: "5bfcf68ca79ef689f8990d1160781b4bad40a3bd5e5218ad4076ddb7f4081585"
url: "https://pub.dev"
source: hosted
version: "2.2.0"
pubspec_parse:
dependency: transitive
description:
name: pubspec_parse
sha256: "0560ba233314abbed0a48a2956f7f022cce7c3e1e73df540277da7544cad4082"
url: "https://pub.dev"
source: hosted
version: "1.5.0"
shelf:
dependency: transitive
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_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"
source_gen:
dependency: transitive
description:
name: source_gen
sha256: "35c8150ece9e8c8d263337a265153c3329667640850b9304861faea59fc98f6b"
url: "https://pub.dev"
source: hosted
version: "2.0.0"
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"
stream_transform:
dependency: transitive
description:
name: stream_transform
sha256: ad47125e588cfd37a9a7f86c7d6356dde8dfe89d071d293f80ca9e9273a33871
url: "https://pub.dev"
source: hosted
version: "2.1.1"
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: "301b213cd241ca982e9ba50266bd3f5bd1ea33f1455554c5abb85d1be0e2d87e"
url: "https://pub.dev"
source: hosted
version: "1.25.15"
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"
timing:
dependency: transitive
description:
name: timing
sha256: "62ee18aca144e4a9f29d212f5a4c6a053be252b895ab14b5821996cff4ed90fe"
url: "https://pub.dev"
source: hosted
version: "1.0.2"
typed_data:
dependency: transitive
description:
name: typed_data
sha256: f9049c039ebfeb4cf7a7104a675823cd72dba8297f264b6637062516699fa006
url: "https://pub.dev"
source: hosted
version: "1.4.0"
uuid:
dependency: "direct main"
description:
name: uuid
sha256: "648e103079f7c64a36dc7d39369cabb358d377078a051d6ae2ad3aa539519313"
url: "https://pub.dev"
source: hosted
version: "3.0.7"
vm_service:
dependency: transitive
description:
name: vm_service
sha256: ddfa8d30d89985b96407efce8acbdd124701f96741f2d981ca860662f1c0dc02
url: "https://pub.dev"
source: hosted
version: "15.0.0"
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_channel:
dependency: "direct main"
description:
name: web_socket_channel
sha256: "58c6666b342a38816b2e7e50ed0f1e261959630becd4c879c4f26bfa14aa5a42"
url: "https://pub.dev"
source: hosted
version: "2.4.5"
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: b9da305ac7c39faa3f030eccd175340f968459dae4af175130b3fc47e40d76ce
url: "https://pub.dev"
source: hosted
version: "3.1.3"
sdks:
dart: ">=3.7.0-0 <4.0.0"

17
pubspec.yaml Normal file
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name: comfyui_api_sdk
description: A Dart SDK for interacting with ComfyUI API
version: 0.1.0
environment:
sdk: '>=3.0.0 <4.0.0'
dependencies:
http: ^0.13.5
web_socket_channel: ^2.3.0
uuid: ^3.0.7
mockito: ^5.4.5
build_runner: ^2.4.14
dev_dependencies:
lints: ^2.0.0
test: ^1.21.0

197
test/comfyui_api_test.dart Normal file
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import 'dart:convert';
import 'package:comfyui_api_sdk/comfyui_api_sdk.dart';
import 'package:http/http.dart' as http;
import 'package:http/testing.dart';
import 'package:mockito/annotations.dart';
import 'package:mockito/mockito.dart';
import 'package:test/test.dart';
import 'package:web_socket_channel/web_socket_channel.dart';
import 'comfyui_api_test.mocks.dart';
import 'test_data.dart';
@GenerateMocks([http.Client, WebSocketChannel, WebSocketSink])
void main() {
late MockClient mockClient;
late ComfyUiApi api;
const String testHost = 'http://localhost:8188';
const String testClientId = 'test-client-id';
setUp(() {
mockClient = MockClient();
api = ComfyUiApi(
host: testHost,
clientId: testClientId,
httpClient: mockClient,
);
});
group('ComfyUiApi', () {
test('initialize with provided values', () {
expect(api.host, equals(testHost));
expect(api.clientId, equals(testClientId));
});
test('initialize with generated clientId when not provided', () {
final autoApi = ComfyUiApi(host: testHost, httpClient: mockClient);
expect(autoApi.clientId, isNotEmpty);
expect(autoApi.clientId, isNot(equals(testClientId)));
});
test('getQueue returns parsed response', () async {
when(mockClient.get(Uri.parse('$testHost/queue'))).thenAnswer(
(_) async => http.Response(jsonEncode(TestData.queueResponse), 200));
final result = await api.getQueue();
expect(result, equals(TestData.queueResponse));
verify(mockClient.get(Uri.parse('$testHost/queue'))).called(1);
});
test('getHistory returns parsed response', () async {
when(mockClient.get(Uri.parse('$testHost/api/history?max_items=64')))
.thenAnswer((_) async =>
http.Response(jsonEncode(TestData.historyResponse), 200));
final result = await api.getHistory();
expect(result, equals(TestData.historyResponse));
verify(mockClient.get(Uri.parse('$testHost/api/history?max_items=64')))
.called(1);
});
test('getImage returns image bytes', () async {
final bytes = [1, 2, 3, 4];
when(mockClient.get(Uri.parse('$testHost/api/view?filename=test.png')))
.thenAnswer((_) async => http.Response.bytes(bytes, 200));
final result = await api.getImage('test.png');
expect(result, equals(bytes));
verify(mockClient.get(Uri.parse('$testHost/api/view?filename=test.png')))
.called(1);
});
test('getCheckpoints returns parsed response', () async {
when(mockClient
.get(Uri.parse('$testHost/api/experiment/models/checkpoints')))
.thenAnswer((_) async =>
http.Response(jsonEncode(TestData.checkpointsResponse), 200));
final result = await api.getCheckpoints();
expect(result, equals(TestData.checkpointsResponse));
verify(mockClient
.get(Uri.parse('$testHost/api/experiment/models/checkpoints')))
.called(1);
});
test('getCheckpointDetails returns parsed response', () async {
const filename = 'models/checkpoints/test.safetensors';
when(mockClient.get(Uri.parse(
'$testHost/api/view_metadata/checkpoints?filename=$filename')))
.thenAnswer((_) async => http.Response(
jsonEncode(TestData.checkpointMetadataResponse), 200));
final result = await api.getCheckpointDetails(filename);
expect(result, equals(TestData.checkpointMetadataResponse));
verify(mockClient.get(Uri.parse(
'$testHost/api/view_metadata/checkpoints?filename=$filename')))
.called(1);
});
test('getLoras returns parsed response', () async {
when(mockClient.get(Uri.parse('$testHost/api/experiment/models/loras')))
.thenAnswer((_) async =>
http.Response(jsonEncode(TestData.lorasResponse), 200));
final result = await api.getLoras();
expect(result, equals(TestData.lorasResponse));
verify(mockClient.get(Uri.parse('$testHost/api/experiment/models/loras')))
.called(1);
});
test('getVaes returns parsed response', () async {
when(mockClient.get(Uri.parse('$testHost/api/experiment/models/vae')))
.thenAnswer((_) async =>
http.Response(jsonEncode(TestData.vaeResponse), 200));
final result = await api.getVaes();
expect(result, equals(TestData.vaeResponse));
verify(mockClient.get(Uri.parse('$testHost/api/experiment/models/vae')))
.called(1);
});
test('getObjectInfo returns parsed response', () async {
when(mockClient.get(Uri.parse('$testHost/api/object_info'))).thenAnswer(
(_) async =>
http.Response(jsonEncode(TestData.objectInfoResponse), 200));
final result = await api.getObjectInfo();
expect(result, equals(TestData.objectInfoResponse));
verify(mockClient.get(Uri.parse('$testHost/api/object_info'))).called(1);
});
test('submitPrompt returns parsed response', () async {
when(mockClient.post(
Uri.parse('$testHost/api/prompt'),
headers: {'Content-Type': 'application/json'},
body: jsonEncode(TestData.promptRequest),
)).thenAnswer(
(_) async => http.Response(jsonEncode(TestData.promptResponse), 200));
final result = await api.submitPrompt(TestData.promptRequest);
expect(result, equals(TestData.promptResponse));
verify(mockClient.post(
Uri.parse('$testHost/api/prompt'),
headers: {'Content-Type': 'application/json'},
body: jsonEncode(TestData.promptRequest),
)).called(1);
});
test('throws ComfyUiApiException on error response', () async {
when(mockClient.get(Uri.parse('$testHost/queue')))
.thenAnswer((_) async => http.Response('Error message', 500));
expect(() => api.getQueue(), throwsA(isA<ComfyUiApiException>()));
});
});
group('Models', () {
test('QueueInfo parses from JSON correctly', () {
final queueInfo = QueueInfo.fromJson(TestData.queueResponse);
expect(queueInfo.queueRunning, equals(0));
expect(queueInfo.queue.length, equals(0));
expect(queueInfo.queuePending, isA<Map<String, dynamic>>());
});
test('PromptExecutionStatus parses from JSON correctly', () {
final status = PromptExecutionStatus.fromJson(TestData.promptResponse);
expect(status.promptId, equals('123456789'));
expect(status.number, equals(1));
expect(status.status, equals('success'));
});
test('HistoryItem parses from JSON correctly', () {
final item = HistoryItem.fromJson(TestData.historyItemResponse);
expect(item.promptId, equals('123456789'));
expect(item.prompt, isA<Map<String, dynamic>>());
expect(item.outputs, isA<Map<String, dynamic>>());
});
test('ProgressUpdate parses from JSON correctly', () {
final update = ProgressUpdate.fromJson(TestData.progressUpdateResponse);
expect(update.type, equals('execution_start'));
expect(update.data, isA<Map<String, dynamic>>());
});
});
}

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import 'dart:convert';
import 'dart:io';
import 'package:comfyui_api_sdk/comfyui_api_sdk.dart';
import 'package:http/http.dart' as http;
import 'package:http/testing.dart';
import 'package:test/test.dart';
void main() {
late ComfyUiApi api;
late MockClient mockClient;
const String testHost = 'http://localhost:8188';
setUp(() {
// Setup a MockClient that simulates real API responses
mockClient = MockClient((request) async {
final uri = request.url;
final method = request.method;
// Simulate queue endpoint
if (uri.path == '/queue' && method == 'GET') {
return http.Response(
jsonEncode({'queue_running': 0, 'queue': [], 'queue_pending': {}}),
200,
);
}
// Simulate history endpoint
if (uri.path == '/api/history' && method == 'GET') {
return http.Response(
jsonEncode({
'History': {
'123456789': {
'prompt': {
// Simplified prompt data
'1': {'class_type': 'TestNode'}
},
'outputs': {
'8': {
'images': {
'filename': 'ComfyUI_00001_.png',
'subfolder': '',
'type': 'output',
}
}
}
}
}
}),
200,
);
}
// Simulate checkpoint list endpoint
if (uri.path == '/api/experiment/models/checkpoints' && method == 'GET') {
return http.Response(
jsonEncode({
'models/checkpoints/dreamshaper_8.safetensors': {
'filename': 'dreamshaper_8.safetensors',
'folder': 'models/checkpoints',
}
}),
200,
);
}
// Simulate checkpoint metadata endpoint
if (uri.path == '/api/view_metadata/checkpoints' && method == 'GET') {
return http.Response(
jsonEncode({
'model': {
'type': 'checkpoint',
'title': 'Dreamshaper 8',
'hash': 'abcdef1234567890',
}
}),
200,
);
}
// Simulate object info endpoint
if (uri.path == '/api/object_info' && method == 'GET') {
return http.Response(
jsonEncode({
'KSampler': {
'input': {
'required': {
'model': 'MODEL',
'seed': 'INT',
'steps': 'INT',
}
},
'output': ['LATENT'],
'output_is_list': [false]
}
}),
200,
);
}
// Simulate prompt submission endpoint
if (uri.path == '/api/prompt' && method == 'POST') {
return http.Response(
jsonEncode(
{'prompt_id': '123456789', 'number': 1, 'status': 'success'}),
200,
);
}
// Simulate image view endpoint
if (uri.path == '/api/view' && method == 'GET') {
// Return a dummy image
return http.Response.bytes([1, 2, 3, 4], 200,
headers: {
'Content-Type': 'image/png',
});
}
// Default response for unhandled routes
return http.Response('Not Found', 404);
});
// Create the API with our mock client
api = ComfyUiApi(
host: testHost,
clientId: 'integration-test-client',
httpClient: mockClient,
);
});
group('Integration Tests', () {
test('Get queue information', () async {
final queue = await api.getQueue();
expect(queue['queue_running'], equals(0));
expect(queue['queue'], isEmpty);
expect(queue['queue_pending'], isA<Map>());
});
test('Get history information', () async {
final history = await api.getHistory();
expect(history['History'], isA<Map>());
expect(history['History']['123456789'], isA<Map>());
expect(history['History']['123456789']['outputs'], isA<Map>());
});
test('Get checkpoint list', () async {
final checkpoints = await api.getCheckpoints();
expect(checkpoints.keys,
contains('models/checkpoints/dreamshaper_8.safetensors'));
expect(
checkpoints['models/checkpoints/dreamshaper_8.safetensors']
['filename'],
equals('dreamshaper_8.safetensors'));
});
test('Get checkpoint metadata', () async {
final metadata = await api
.getCheckpointDetails('models/checkpoints/dreamshaper_8.safetensors');
expect(metadata['model']['type'], equals('checkpoint'));
expect(metadata['model']['title'], equals('Dreamshaper 8'));
});
test('Get object info', () async {
final info = await api.getObjectInfo();
expect(info['KSampler'], isA<Map>());
expect(info['KSampler']['input']['required']['seed'], equals('INT'));
});
test('Submit prompt', () async {
final promptData = {
'prompt': {
'1': {
'inputs': {'text': 'A beautiful landscape'},
'class_type': 'CLIPTextEncode'
}
},
'client_id': 'integration-test-client'
};
final result = await api.submitPrompt(promptData);
expect(result['prompt_id'], equals('123456789'));
expect(result['status'], equals('success'));
});
test('Get image', () async {
final imageBytes = await api.getImage('ComfyUI_00001_.png');
expect(imageBytes, equals([1, 2, 3, 4]));
});
test('Handle error response', () async {
// Create a client that always returns an error
final errorClient = MockClient((_) async {
return http.Response('Server Error', 500);
});
final errorApi = ComfyUiApi(
host: testHost,
clientId: 'error-test-client',
httpClient: errorClient,
);
expect(() => errorApi.getQueue(), throwsA(isA<ComfyUiApiException>()));
});
});
}

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import 'package:comfyui_api_sdk/comfyui_api_sdk.dart';
import 'package:test/test.dart';
void main() {
group('QueueInfo', () {
test('fromJson creates instance with correct values', () {
final json = {
'queue_running': 1,
'queue': [
{'prompt_id': '123', 'number': 1}
],
'queue_pending': {
'456': {'prompt_id': '456', 'number': 2}
}
};
final queueInfo = QueueInfo.fromJson(json);
expect(queueInfo.queueRunning, equals(1));
expect(queueInfo.queue.length, equals(1));
expect(queueInfo.queue[0]['prompt_id'], equals('123'));
expect(queueInfo.queuePending['456']['prompt_id'], equals('456'));
});
test('fromJson handles missing or empty values', () {
final json = {'queue_running': 0};
final queueInfo = QueueInfo.fromJson(json);
expect(queueInfo.queueRunning, equals(0));
expect(queueInfo.queue, isEmpty);
expect(queueInfo.queuePending, isEmpty);
});
});
group('PromptExecutionStatus', () {
test('fromJson creates instance with correct values', () {
final json = {
'prompt_id': 'abc123',
'number': 5,
'status': 'processing',
'error': null
};
final status = PromptExecutionStatus.fromJson(json);
expect(status.promptId, equals('abc123'));
expect(status.number, equals(5));
expect(status.status, equals('processing'));
expect(status.error, isNull);
});
test('fromJson handles error information', () {
final json = {
'prompt_id': 'abc123',
'number': 5,
'status': 'error',
'error': 'Something went wrong'
};
final status = PromptExecutionStatus.fromJson(json);
expect(status.status, equals('error'));
expect(status.error, equals('Something went wrong'));
});
});
group('HistoryItem', () {
test('fromJson creates instance with correct values', () {
final json = {
'prompt_id': 'abc123',
'prompt': {
'1': {'class_type': 'TestNode'}
},
'outputs': {
'2': {
'images': {'filename': 'test.png'}
}
}
};
final item = HistoryItem.fromJson(json);
expect(item.promptId, equals('abc123'));
expect(item.prompt['1']['class_type'], equals('TestNode'));
expect(item.outputs?['2']['images']['filename'], equals('test.png'));
});
test('fromJson handles missing outputs', () {
final json = {
'prompt_id': 'abc123',
'prompt': {
'1': {'class_type': 'TestNode'}
}
};
final item = HistoryItem.fromJson(json);
expect(item.promptId, equals('abc123'));
expect(item.outputs, isNull);
});
});
group('ProgressUpdate', () {
test('fromJson creates instance with correct values', () {
final json = {
'type': 'execution_start',
'data': {'prompt_id': 'abc123', 'node': 5}
};
final update = ProgressUpdate.fromJson(json);
expect(update.type, equals('execution_start'));
expect(update.data['prompt_id'], equals('abc123'));
expect(update.data['node'], equals(5));
});
test('fromJson handles empty data', () {
final json = {'type': 'status', 'data': {}};
final update = ProgressUpdate.fromJson(json);
expect(update.type, equals('status'));
expect(update.data, isEmpty);
});
});
}

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/// Test data for ComfyUI API tests
class TestData {
/// Mock queue response
static final Map<String, dynamic> queueResponse = {
'queue_running': 0,
'queue': [],
'queue_pending': {}
};
/// Mock history response
static final Map<String, dynamic> historyResponse = {
'History': {
'123456789': {
'prompt': {
// Prompt data
},
'outputs': {
'8': {
'images': {
'filename': 'ComfyUI_00001_.png',
'subfolder': '',
'type': 'output',
}
}
}
}
}
};
/// Mock history item
static final Map<String, dynamic> historyItemResponse = {
'prompt_id': '123456789',
'prompt': {
// Prompt data
},
'outputs': {
'8': {
'images': {
'filename': 'ComfyUI_00001_.png',
'subfolder': '',
'type': 'output',
}
}
}
};
/// Mock checkpoints response
static final Map<String, dynamic> checkpointsResponse = {
'models/checkpoints/dreamshaper_8.safetensors': {
'filename': 'dreamshaper_8.safetensors',
'folder': 'models/checkpoints',
},
'models/checkpoints/sd_xl_base_1.0.safetensors': {
'filename': 'sd_xl_base_1.0.safetensors',
'folder': 'models/checkpoints',
}
};
/// Mock checkpoint metadata response
static final Map<String, dynamic> checkpointMetadataResponse = {
'model': {
'type': 'checkpoint',
'title': 'Dreamshaper 8',
'filename': 'dreamshaper_8.safetensors',
'hash': 'abcdef1234567890',
}
};
/// Mock LoRAs response
static final Map<String, dynamic> lorasResponse = {
'models/loras/example_lora.safetensors': {
'filename': 'example_lora.safetensors',
'folder': 'models/loras',
}
};
/// Mock VAE response
static final Map<String, dynamic> vaeResponse = {
'models/vae/example_vae.safetensors': {
'filename': 'example_vae.safetensors',
'folder': 'models/vae',
}
};
/// Mock object info response (simplified)
static final Map<String, dynamic> objectInfoResponse = {
'CheckpointLoaderSimple': {
'input': {
'required': {'ckpt_name': 'STRING'}
},
'output': ['MODEL', 'CLIP', 'VAE'],
'output_is_list': [false, false, false]
},
'KSampler': {
'input': {
'required': {
'model': 'MODEL',
'seed': 'INT',
'steps': 'INT',
'cfg': 'FLOAT',
'sampler_name': 'STRING',
'scheduler': 'STRING',
'positive': 'CONDITIONING',
'negative': 'CONDITIONING',
'latent_image': 'LATENT'
},
'optional': {'denoise': 'FLOAT'}
},
'output': ['LATENT'],
'output_is_list': [false]
}
};
/// Mock prompt request
static final Map<String, dynamic> promptRequest = {
'prompt': {
'3': {
'inputs': {
'seed': 123456789,
'steps': 20,
'cfg': 7,
'sampler_name': 'euler_ancestral',
'scheduler': 'normal',
'denoise': 1,
'model': ['4', 0],
'positive': ['6', 0],
'negative': ['7', 0],
'latent_image': ['5', 0]
},
'class_type': 'KSampler'
}
},
'client_id': 'test-client-id'
};
/// Mock prompt response
static final Map<String, dynamic> promptResponse = {
'prompt_id': '123456789',
'number': 1,
'status': 'success'
};
/// Mock progress update response
static final Map<String, dynamic> progressUpdateResponse = {
'type': 'execution_start',
'data': {'prompt_id': '123456789'}
};
}

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import 'dart:async';
import 'dart:convert';
import 'package:comfyui_api_sdk/comfyui_api_sdk.dart';
import 'package:http/http.dart' as http;
import 'package:http/testing.dart';
import 'package:mockito/annotations.dart';
import 'package:mockito/mockito.dart';
import 'package:test/test.dart';
import 'package:web_socket_channel/web_socket_channel.dart';
import 'test_data.dart';
import 'websocket_test.mocks.dart';
@GenerateMocks([http.Client, WebSocketChannel, WebSocketSink, Stream])
void main() {
late MockClient mockClient;
late MockWebSocketChannel mockWebSocketChannel;
late MockWebSocketSink mockWebSocketSink;
late StreamController<dynamic> streamController;
late ComfyUiApi api;
const String testHost = 'http://localhost:8188';
const String testClientId = 'test-client-id';
setUp(() {
mockClient = MockClient();
mockWebSocketChannel = MockWebSocketChannel();
mockWebSocketSink = MockWebSocketSink();
streamController = StreamController<dynamic>.broadcast();
when(mockWebSocketChannel.sink).thenReturn(mockWebSocketSink);
when(mockWebSocketChannel.stream)
.thenAnswer((_) => streamController.stream);
api = ComfyUiApi(
host: testHost,
clientId: testClientId,
httpClient: mockClient,
);
});
tearDown(() {
streamController.close();
});
group('WebSocket functionality', () {
test('connectWebSocket connects to correct URL', () async {
// Use a spy to capture the URI passed to WebSocketChannel.connect
final wsUrl = 'ws://localhost:8188/ws?clientId=$testClientId';
await api.connectWebSocket();
// This is a bit tricky to test without modifying the implementation
// In a real test we'd use a different approach or dependency injection
// For now, we'll just verify that the WebSocket URL format is correct
expect(wsUrl, equals('ws://localhost:8188/ws?clientId=$testClientId'));
});
test('progressUpdates stream emits data received from WebSocket', () async {
// We need a way to provide a mock WebSocketChannel to the API
// For this test, we'll use a modified approach
final mockApi = MockComfyUiApi(
host: testHost,
clientId: testClientId,
httpClient: mockClient,
mockWebSocketChannel: mockWebSocketChannel,
);
// Connect and verify mock WebSocket is used
await mockApi.connectWebSocket();
// Prepare to capture emitted events
final events = <Map<String, dynamic>>[];
final subscription = mockApi.progressUpdates.listen(events.add);
// Send test data through the mock WebSocket
final testData = TestData.progressUpdateResponse;
streamController.add(jsonEncode(testData));
// Wait for async processing
await Future.delayed(Duration(milliseconds: 100));
// Verify the data was emitted
expect(events.length, equals(1));
expect(events.first, equals(testData));
// Clean up
await subscription.cancel();
});
test('dispose closes WebSocket and stream', () async {
final mockApi = MockComfyUiApi(
host: testHost,
clientId: testClientId,
httpClient: mockClient,
mockWebSocketChannel: mockWebSocketChannel,
);
// Connect
await mockApi.connectWebSocket();
// Dispose
mockApi.dispose();
// Verify WebSocket was closed
verify(mockWebSocketSink.close()).called(1);
});
});
}
/// A modified version of ComfyUiApi for testing that allows injecting a mock WebSocketChannel
class MockComfyUiApi extends ComfyUiApi {
final WebSocketChannel? mockWebSocketChannel;
MockComfyUiApi({
required String host,
required String clientId,
required http.Client httpClient,
this.mockWebSocketChannel,
}) : super(
host: host,
clientId: clientId,
httpClient: httpClient,
);
@override
Future<void> connectWebSocket() async {
if (mockWebSocketChannel != null) {
_wsChannel = mockWebSocketChannel;
_wsChannel!.stream.listen((message) {
final data = jsonDecode(message);
_progressController.add(data);
}, onError: (error) {
print('WebSocket error: $error');
}, onDone: () {
print('WebSocket connection closed');
});
} else {
await super.connectWebSocket();
}
}
}