EasyAppDev.Blazor.AutoComplete.AI.PostgreSql 1.0.7

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. 
dotnet add package EasyAppDev.Blazor.AutoComplete.AI.PostgreSql --version 1.0.7
                    


                    

                
NuGet\Install-Package EasyAppDev.Blazor.AutoComplete.AI.PostgreSql -Version 1.0.7
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="EasyAppDev.Blazor.AutoComplete.AI.PostgreSql" Version="1.0.7" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="EasyAppDev.Blazor.AutoComplete.AI.PostgreSql" Version="1.0.7" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="EasyAppDev.Blazor.AutoComplete.AI.PostgreSql" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add EasyAppDev.Blazor.AutoComplete.AI.PostgreSql --version 1.0.7
                    


                    

                
#r "nuget: EasyAppDev.Blazor.AutoComplete.AI.PostgreSql, 1.0.7"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package EasyAppDev.Blazor.AutoComplete.AI.PostgreSql@1.0.7
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=EasyAppDev.Blazor.AutoComplete.AI.PostgreSql&version=1.0.7
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=EasyAppDev.Blazor.AutoComplete.AI.PostgreSql&version=1.0.7
                    


                            Install as a Cake Tool

EasyAppDev.Blazor.AutoComplete.AI.PostgreSql

PostgreSQL/pgvector integration for semantic search with the Blazor AutoComplete component.

NuGet License: MIT

Features

  • pgvector Support: Native PostgreSQL vector similarity search
  • 6 Distance Functions: Cosine, L2, DotProduct + 3 pgvector-only
  • HNSW Index: High-performance approximate nearest neighbor search
  • Self-Hosted: Full control over your data and infrastructure

Installation

dotnet add package EasyAppDev.Blazor.AutoComplete.AI.PostgreSql

Prerequisites

  1. PostgreSQL 15+ with pgvector extension:
CREATE EXTENSION vector;

Quick Start

1. Configure Services

// Program.cs
builder.Services.AddAutoCompletePostgreSql<Product>(
    connectionString: "Host=localhost;Database=myapp;Username=user;Password=pass",
    options => {
        options.TableName = "product_embeddings";
        options.Dimensions = 1536;
        options.DistanceFunction = DistanceFunction.Cosine;
    },
    textSelector: p => $"{p.Name} {p.Description}",
    idSelector: p => p.Id.ToString());

// Register embedding generator
builder.Services.AddAutoCompleteVectorSearch<Product>(
    openAiApiKey: "sk-...");

2. Use the Component

@using EasyAppDev.Blazor.AutoComplete.AI

<VectorAutoComplete TItem="Product"
                    TextField="@(p => p.Name)"
                    @bind-Value="@selectedProduct"
                    Placeholder="Semantic search..." />

Configuration Options

Option Description Default
ConnectionString PostgreSQL connection string Required
TableName Table for embeddings {type}_embeddings
Dimensions Vector dimensions 1536
DistanceFunction Similarity metric Cosine
CreateTableIfNotExists Auto-create table true
UseHnswIndex Enable HNSW index true

Distance Functions

Function Use Case
Cosine Normalized embeddings (default)
L2 Euclidean distance
DotProduct Inner product similarity
L1 Manhattan distance
Hamming Binary vectors
Jaccard Set similarity

Indexing Data

@inject IVectorIndexer<Product> indexer

// Index all products
await indexer.IndexAsync(products);

// Re-index on update
await indexer.UpdateAsync(updatedProduct);

License

MIT

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
1.0.7 43 12/21/2025
1.0.6 71 12/20/2025

Version 1.0.7 - Added AOT-compatible JSON serialization overloads for all vector database providers. Fixed exception handling in GetItem to return default on deserialization failure. Added cancellation token propagation in Azure Search hybrid search. Improved robustness and trimming compatibility.