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April 23, 2021 02:57
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ASP.NET Interactive Extension + ML.NET
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| { | |
| "cells": [ | |
| { | |
| "cell_type": "code", | |
| "execution_count": 1, | |
| "metadata": { | |
| "dotnet_interactive": { | |
| "language": "csharp" | |
| } | |
| }, | |
| "source": [ | |
| "#r \"nuget:microsoft.dotnet.interactive.aspnetcore,*-*\"\n", | |
| "#r \"nuget:Microsoft.ML,1.5.5\"" | |
| ], | |
| "outputs": [ | |
| { | |
| "output_type": "execute_result", | |
| "data": { | |
| "text/plain": "Installed package Microsoft.ML version 1.5.5" | |
| }, | |
| "execution_count": 1, | |
| "metadata": {} | |
| }, | |
| { | |
| "output_type": "execute_result", | |
| "data": { | |
| "text/plain": "Installed package microsoft.dotnet.interactive.aspnetcore version 1.0.0-beta.21222.2" | |
| }, | |
| "execution_count": 1, | |
| "metadata": {} | |
| } | |
| ] | |
| }, | |
| { | |
| "cell_type": "code", | |
| "execution_count": 1, | |
| "metadata": { | |
| "dotnet_interactive": { | |
| "language": "csharp" | |
| } | |
| }, | |
| "source": [ | |
| "using System.IO;\n", | |
| "using Microsoft.ML;\n", | |
| "using Microsoft.ML.Data;\n", | |
| "using System.Text.Json;" | |
| ], | |
| "outputs": [] | |
| }, | |
| { | |
| "cell_type": "code", | |
| "execution_count": 1, | |
| "metadata": { | |
| "dotnet_interactive": { | |
| "language": "csharp" | |
| } | |
| }, | |
| "source": [ | |
| "#!aspnet\n", | |
| "\n", | |
| "public async Task<ITransformer> DownloadModel(MLContext ctx, string url)\n", | |
| "{\n", | |
| " var model = await HttpClient.GetStreamAsync(url);\n", | |
| " return ctx.Model.Load(model, out var x);\n", | |
| "}" | |
| ], | |
| "outputs": [] | |
| }, | |
| { | |
| "cell_type": "code", | |
| "execution_count": 1, | |
| "metadata": { | |
| "dotnet_interactive": { | |
| "language": "csharp" | |
| } | |
| }, | |
| "source": [ | |
| "public class ModelInput\n", | |
| "{\n", | |
| " public string SentimentText;\n", | |
| "\n", | |
| " [ColumnName(\"Label\")]\n", | |
| " public bool Sentiment;\n", | |
| "}\n", | |
| "\n", | |
| "public class ModelOutput\n", | |
| "{\n", | |
| " [ColumnName(\"PredictedLabel\")]\n", | |
| " public bool Prediction { get; set; }\n", | |
| "\n", | |
| " public float Probability { get; set; }\n", | |
| "\n", | |
| " public float Score { get; set; }\n", | |
| "}" | |
| ], | |
| "outputs": [] | |
| }, | |
| { | |
| "cell_type": "code", | |
| "execution_count": 1, | |
| "metadata": { | |
| "dotnet_interactive": { | |
| "language": "csharp" | |
| } | |
| }, | |
| "source": [ | |
| "#!aspnet\n", | |
| "\n", | |
| "MLContext ctx = new MLContext();\n", | |
| "var modelStream = await HttpClient.GetStreamAsync(\"https://github.com/dotnet/samples/raw/main/machine-learning/models/sentimentanalysis/sentiment_model.zip\");\n", | |
| "var model = ctx.Model.Load(modelStream, out var schema);\n", | |
| "var predEngine = ctx.Model.CreatePredictionEngine<ModelInput,ModelOutput>(model);\n", | |
| "\n", | |
| "Endpoints.MapInteractive(\"/PredictSentiment\", async context => \n", | |
| "{\n", | |
| " if(context.Request.Method.ToLowerInvariant() == \"post\")\n", | |
| " {\n", | |
| " var input = await context.Request.ReadFromJsonAsync<ModelInput>();\n", | |
| " var prediction = predEngine.Predict(input);\n", | |
| " await context.Response.WriteAsJsonAsync(prediction); \n", | |
| " }\n", | |
| " else\n", | |
| " {\n", | |
| " context.Response.StatusCode = 405;\n", | |
| " await context.Response.CompleteAsync();\n", | |
| " }\n", | |
| " \n", | |
| "});" | |
| ], | |
| "outputs": [] | |
| }, | |
| { | |
| "cell_type": "code", | |
| "execution_count": 1, | |
| "metadata": { | |
| "dotnet_interactive": { | |
| "language": "csharp" | |
| } | |
| }, | |
| "source": [ | |
| "#!aspnet\n", | |
| "\n", | |
| "var input = new ModelInput {SentimentText = \"This was a very bad steak\"};\n", | |
| "var reqBody = JsonSerializer.Serialize(input);\n", | |
| "var output = await HttpClient.PostAsync(\"/PredictSentiment\", new StringContent(reqBody,System.Text.Encoding.UTF8,\"application/json\"));" | |
| ], | |
| "outputs": [] | |
| }, | |
| { | |
| "cell_type": "code", | |
| "execution_count": 1, | |
| "metadata": { | |
| "dotnet_interactive": { | |
| "language": "csharp" | |
| } | |
| }, | |
| "source": [ | |
| "output" | |
| ], | |
| "outputs": [ | |
| { | |
| "output_type": "execute_result", | |
| "data": { | |
| "text/html": "<div class=\"http-response-message-container\"><style type=\"text/css\">\r\n .http-response-message-container {\r\n display: flex;\r\n flex-wrap: wrap;\r\n }\r\n\r\n .http-response-message-container > div {\r\n margin: .5em;\r\n padding: 1em;\r\n border: 1px solid;\r\n }\r\n\r\n .http-response-message-container > div > h2 {\r\n margin-top: 0;\r\n }\r\n\r\n .http-response-message-container > div > h3 {\r\n margin-bottom: 0;\r\n }\r\n\r\n .aspnet-logs-container {\r\n margin: 0 .5em;\r\n }\r\n\r\n .http-response-message-container summary, .aspnet-logs-container summary {\r\n margin: 1em 0;\r\n font-size: 1.17em;\r\n font-weight: 700;\r\n }</style><div><h2>Request</h2><hr></hr><h3>POST <a href=\"http://127.0.0.1:54460/PredictSentiment\">http://127.0.0.1:54460/PredictSentiment</a> HTTP/1.1</h3><details><summary>Headers</summary><table><thead><tr><th>Name</th><th>Value</th></tr></thead><tbody><tr><td>Content-Type</td><td>application/json; charset=utf-8</td></tr><tr><td>Content-Length</td><td>2</td></tr></tbody></table></details><details><summary>Body</summary><pre>{}</pre></details></div><div><h2>Response</h2><hr></hr><h3>HTTP/1.1 200 OK</h3><details open=\"True\"><summary>Headers</summary><table><thead><tr><th>Name</th><th>Value</th></tr></thead><tbody><tr><td>Date</td><td>Fri, 23 Apr 2021 02:45:11 GMT</td></tr><tr><td>Server</td><td>Kestrel</td></tr><tr><td>Transfer-Encoding</td><td>chunked</td></tr><tr><td>Content-Type</td><td>application/json; charset=utf-8</td></tr></tbody></table></details><details open=\"True\"><summary>Body</summary><pre>{"prediction":false,"probability":0.5,"score":0}</pre></details></div></div><details class=\"aspnet-logs-container\"><summary>Logs</summary><table><thead><tr><th><i>index</i></th><th>LogLevel</th><th>Category</th><th>EventId</th><th>Message</th><th>Exception</th></tr></thead><tbody><tr><td>0</td><td><span>Information</span></td><td><div class=\"dni-plaintext\">Microsoft.AspNetCore.Hosting.Diagnostics</div></td><td><div class=\"dni-plaintext\">RequestStarting</div></td><td><div class=\"dni-plaintext\">Request starting HTTP/1.1 POST http://127.0.0.1:54460/PredictSentiment application/json;+charset=utf-8 2</div></td><td><div class=\"dni-plaintext\"><null></div></td></tr><tr><td>1</td><td><span>Trace</span></td><td><div class=\"dni-plaintext\">Microsoft.AspNetCore.HostFiltering.HostFilteringMiddleware</div></td><td><div class=\"dni-plaintext\">AllHostsAllowed</div></td><td><div class=\"dni-plaintext\">All hosts are allowed.</div></td><td><div class=\"dni-plaintext\"><null></div></td></tr><tr><td>2</td><td><span>Debug</span></td><td><div class=\"dni-plaintext\">Microsoft.AspNetCore.Routing.Matching.DfaMatcher</div></td><td><div class=\"dni-plaintext\">CandidatesFound</div></td><td><div class=\"dni-plaintext\">2 candidate(s) found for the request path '/PredictSentiment'</div></td><td><div class=\"dni-plaintext\"><null></div></td></tr><tr><td>3</td><td><span>Debug</span></td><td><div class=\"dni-plaintext\">Microsoft.AspNetCore.Routing.Matching.DfaMatcher</div></td><td><div class=\"dni-plaintext\">CandiateValid</div></td><td><div class=\"dni-plaintext\">Endpoint '/PredictSentiment' with route pattern '/PredictSentiment' is valid for the request path '/PredictSentiment'</div></td><td><div class=\"dni-plaintext\"><null></div></td></tr><tr><td>4</td><td><span>Debug</span></td><td><div class=\"dni-plaintext\">Microsoft.AspNetCore.Routing.Matching.DfaMatcher</div></td><td><div class=\"dni-plaintext\">CandiateValid</div></td><td><div class=\"dni-plaintext\">Endpoint '/PredictSentiment' with route pattern '/PredictSentiment' is valid for the request path '/PredictSentiment'</div></td><td><div class=\"dni-plaintext\"><null></div></td></tr><tr><td>5</td><td><span>Debug</span></td><td><div class=\"dni-plaintext\">Microsoft.AspNetCore.Routing.EndpointRoutingMiddleware</div></td><td><div class=\"dni-plaintext\">MatchSuccess</div></td><td><div class=\"dni-plaintext\">Request matched endpoint '/PredictSentiment'</div></td><td><div class=\"dni-plaintext\"><null></div></td></tr><tr><td>6</td><td><span>Information</span></td><td><div class=\"dni-plaintext\">Microsoft.AspNetCore.Routing.EndpointMiddleware</div></td><td><div class=\"dni-plaintext\">ExecutingEndpoint</div></td><td><div class=\"dni-plaintext\">Executing endpoint '/PredictSentiment'</div></td><td><div class=\"dni-plaintext\"><null></div></td></tr><tr><td>7</td><td><span>Debug</span></td><td><div class=\"dni-plaintext\">Microsoft.AspNetCore.Server.Kestrel</div></td><td><div class=\"dni-plaintext\">RequestBodyStart</div></td><td><div class=\"dni-plaintext\">Connection id "0HM8604MAHVA0", Request id "0HM8604MAHVA0:00000007": started reading request body.</div></td><td><div class=\"dni-plaintext\"><null></div></td></tr><tr><td>8</td><td><span>Debug</span></td><td><div class=\"dni-plaintext\">Microsoft.AspNetCore.Server.Kestrel</div></td><td><div class=\"dni-plaintext\">RequestBodyDone</div></td><td><div class=\"dni-plaintext\">Connection id "0HM8604MAHVA0", Request id "0HM8604MAHVA0:00000007": done reading request body.</div></td><td><div class=\"dni-plaintext\"><null></div></td></tr><tr><td>9</td><td><span>Information</span></td><td><div class=\"dni-plaintext\">Microsoft.AspNetCore.Routing.EndpointMiddleware</div></td><td><div class=\"dni-plaintext\">ExecutedEndpoint</div></td><td><div class=\"dni-plaintext\">Executed endpoint '/PredictSentiment'</div></td><td><div class=\"dni-plaintext\"><null></div></td></tr><tr><td>10</td><td><span>Debug</span></td><td><div class=\"dni-plaintext\">Microsoft.AspNetCore.Server.Kestrel</div></td><td><div class=\"dni-plaintext\">ConnectionKeepAlive</div></td><td><div class=\"dni-plaintext\">Connection id "0HM8604MAHVA0" completed keep alive response.</div></td><td><div class=\"dni-plaintext\"><null></div></td></tr><tr><td>11</td><td><span>Information</span></td><td><div class=\"dni-plaintext\">Microsoft.AspNetCore.Hosting.Diagnostics</div></td><td><div class=\"dni-plaintext\">RequestFinished</div></td><td><div class=\"dni-plaintext\">Request finished HTTP/1.1 POST http://127.0.0.1:54460/PredictSentiment application/json;+charset=utf-8 2 - 200 - application/json;+charset=utf-8 7.5551ms</div></td><td><div class=\"dni-plaintext\"><null></div></td></tr></tbody></table></details>" | |
| }, | |
| "execution_count": 1, | |
| "metadata": {} | |
| } | |
| ] | |
| } | |
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