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libSQL bindings for C

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<a href="https://tur.so/turso-c">
 <picture>
 <img src="/.github/cover.png" alt="libSQL C" />
 </picture>
 </a>
 <h1 align="center">libSQL C</h1>

Databases for C multi-tenant AI Apps.

<a href="https://tur.so/turso-c">Turso</a> ·
 <a href="https://docs.turso.tech">Docs</a> ·
 <a href="https://docs.turso.tech/sdk/c/quickstart">Quickstart</a> ·
 <a href="https://docs.turso.tech/sdk/c/reference">SDK Reference</a> ·
 <a href="https://turso.tech/blog">Blog &amp; Tutorials</a>

## Features

- 🔌 Works offline with [Embedded Replicas](https://docs.turso.tech/features/embedded-replicas/introduction)
- 🌎 Works with remote Turso databases
- ✨ Works with Turso [AI & Vector Search](https://docs.turso.tech/features/ai-and-embeddings)

> [!WARNING]
> This SDK is currently in technical preview, and mostly used for internal use when building other libSQL SDKs. <a href="https://tur.so/discord-c">Join us in Discord</a> to report any issues.

## Install

1. Clone the repository:

```bash
   git clone https://github.com/your-repo/libsql-c.git
   cd libsql-c
   ```

2. Build the library:

```bash
   cargo build --release
   ```

3. The compiled library will be in `target/release/`:

- `liblibsql.so` (Linux)
   - `liblibsql.dylib` (macOS)
   - `liblibsql.dll` (Windows)

4. Copy `libsql.h` and the compiled library to your project directory or a standard system location.

## Quickstart

1. Write your program:

```c
 #include <stdio.h>
 #include "libsql.h"

int main() {
       libsql_setup((libsql_config_t){0});

libsql_database_t db = libsql_database_init((libsql_database_desc_t){
           .path = "local.db"
       });

if (db.err) {
           fprintf(stderr, "Error: %s\n", libsql_error_message(db.err));
           return 1;
       }

libsql_connection_t conn = libsql_database_connect(db);
       if (conn.err) {
           fprintf(stderr, "Connection error: %s\n", libsql_error_message(conn.err));
           return 1;
       }

const char* sql = "CREATE TABLE IF NOT EXISTS users (id INTEGER PRIMARY KEY, name TEXT);"
                         "INSERT INTO users (name) VALUES ('Alice');";

libsql_batch_t batch = libsql_connection_batch(conn, sql);
       if (batch.err) {
           fprintf(stderr, "Batch error: %s\n", libsql_error_message(batch.err));
           return 1;
       }

printf("Database operations completed successfully.\n");

libsql_connection_deinit(conn);
       libsql_database_deinit(db);

return 0;
   }
   ```

2. Compile your program, linking against the libsql library:

```
   gcc -o example example.c -L/path/to/libsql -llibsql
   ```

3. Run your program:
   ```
   ./example
   ```

## Examples

| Example                               | Description                                                                             |
| ------------------------------------- | --------------------------------------------------------------------------------------- |
| [local](examples/local)               | Uses libsql with a local SQLite file. Creates database, inserts data, and queries.      |
| [remote](examples/remote)             | Connects to a remote database. Requires environment variables for URL and auth token.   |
| [sync](examples/sync)                 | Demonstrates synchronization between local and remote databases.                        |
| [batch](examples/batch)               | Executes multiple SQL statements in a single batch operation.                           |
| [transactions](examples/transactions) | Shows transaction usage: starting, performing operations, and committing/rolling back.  |
| [memory](examples/memory)             | Uses an in-memory SQLite database for temporary storage or fast access.                 |
| [vector](examples/vector)             | Works with vector embeddings, storing and querying for similarity search.               |
| [encryption](examples/encryption)     | Creates and uses an encrypted SQLite database, demonstrating setup and data operations. |

## Documentation

Visit our [official documentation](https://docs.turso.tech/sdk/c).

## Support

Join us [on Discord](https://tur.so/discord-c) to get help using this SDK. Report security issues [via email](mailto:security@turso.tech).

## Contributors

See the [contributing guide](CONTRIBUTING.md) to learn how to get involved.

![Contributors](https://contrib.nn.ci/api?repo=tursodatabase/libsql-c)

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