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https://github.com/alash3al/vecdb

a vector embedding database with multiple storage engines and AI embedding integrations
https://github.com/alash3al/vecdb

ai database gemini machine-learning text-embedding vector-database vector-embeddings

Last synced: 8 months ago
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a vector embedding database with multiple storage engines and AI embedding integrations

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README

          

VecDB
======
> a very simple vector embedding database,
> you can say that it is a hash-table that let you find items similar to the item you're searching for.

Why!
====
> I'm a databases enthusiast, and this is a for fun and learning project that could be used in production ;).
>
> **P.S**: I like to re-invent the wheel in my free time, because it is my free time!

Data Model
==========
> I'm using the `{key => value}` model,
> - `key` should be a unique value that represents the item.
> - `value` should be the vector itself (List of Floats).

Configurations
==============
> by default `vecdb` searches for `config.yml` in the current working directory.
> but you can override it using the `--config /path/to/config.yml` flag by providing your own custom file path.

```yaml
# http server related configs
server:
# the address to listen on in the form of '[host]:port'
listen: "0.0.0.0:3000"

# storage related configs
store:
# the driver you want to use
# currently vecdb supports "bolt" which is based on boltdb the in process embedded the database
driver: "bolt"
# the arguments required by the driver
# for bolt, it requires a key called `database` points to the path you want to store the data in.
args:
database: "./vec.db"

# embeddings related configs
embedder:
# whether to enable the embedder and all endpoints using it or not
enabled: true
# the driver you want to use, currently vecdb supports gemini
driver: gemini
# the arguments required by the driver
# currently gemini driver requires `api_key` and `text_embedding_model`
args:
# by default vecdb will replace anything between ${..} with the actual value from the ENV var
api_key: "${GEMINI_API_KEY}"
text_embedding_model: "text-embedding-004"
```

Components
===========
- Raw Vectors Layer (low-level)
- send [VectorWriteRequest](#VectorWriteRequest) to `POST /v1/vectors/write` when you have a vector and want to store it somewhere.
- send [VectorSearchRequest](#VectorSearchRequest) to `POST /v1/vectors/search` when you have a vector and want to list all similar vectors' keys/ids ordered by cosine similarity in descending order.
- Embedding Layer (optional)
- send [TextEmbeddingWriteRequest](#TextEmbeddingWriteRequest) to `POST /v1/embeddings/text/write` when you have a text and want `vecdb` to build and store the vector for you using the configured embedder (gemini for now).
- send [TextEmbeddingSearchRequest](#TextEmbeddingSearchRequest) to `POST /v1/embeddings/text/search` when you have a text and want `vecdb` to build a vector and search for similar vectors' keys for you ordered by cosine similarity in descending order.

Requests
========

### VectorWriteRequest
```json5
{
"bucket": "BUCKET_NAME", // consider it a collection or a table
"key": "product-id-1", // should be unique and represents a valid value in your main data store (example: the row id in your mysql/postgres ... etc)
"vector": [1.929292, 0.3848484, -1.9383838383, ... ] // the vector you want to store
}
```

### VectorSearchRequest
```json5
{
"bucket": "BUCKET_NAME", // consider it a collection or a table
"vector": [1.929292, 0.3848484, -1.9383838383, ... ], // you will get a list ordered by cosine-similarity in descending order
"min_cosine_similarity": 0.0, // the more you increase, the fewer data you will get
"max_result_count": 10 // max vectors to return (vecdb will first order by cosine similarity then apply the limit)
}
```

### TextEmbeddingWriteRequest
> if you set `embedder.enabled` to `true`.

```json5
{
"bucket": "BUCKET_NAME", // consider it a collection or a table
"key": "product-id-1", // should be unique and represents a valid value in your main data store (example: the row id in your mysql/postgres ... etc)
"content": "This is some text representing the product" // this will be converted to a vector using the configured embedder
}
```

### TextEmbeddingSearchRequest
> if you set `embedder.enabled` to `true`.

```json5
{
"bucket": "BUCKET_NAME", // consider it a collection or a table
"content": "A Product Text", // you will get a list ordered by cosine-similarity in descending order
"min_cosine_similarity": 0.0, // the more you increase, the fewer data you will get
"max_result_count": 10 // max vectors to return (vecdb will first order by cosine similarity then apply the limit)
}
```

Download/Install
================
- [Binary](https://github.com/alash3al/vecdb/releases)
- [Docker Image](https://github.com/alash3al/vecdb/pkgs/container/vecdb)