libSQL C

Databases for C multi-tenant AI Apps.

Turso · Docs · Quickstart · SDK Reference · Blog & Tutorials

Features

🔌 Works offline with Embedded Replicas
🌎 Works with remote Turso databases
✨ Works with Turso AI & Vector Search

Warning

This SDK is currently in technical preview, and mostly used for internal use when building other libSQL SDKs. Join us in Discord to report any issues.

Install

Clone the repository:

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

Build the library:
```
cargo build --release
```
The compiled library will be in target/release/:
- liblibsql.so (Linux)
- liblibsql.dylib (macOS)
- liblibsql.dll (Windows)
Copy libsql.h and the compiled library to your project directory or a standard system location.

Quickstart

Write your program:

#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;
}

Compile your program, linking against the libsql library:
```
gcc -o example example.c -L/path/to/libsql -llibsql
```
Run your program:
```
./example
```

Examples

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

Documentation

Visit our official documentation.

Support

Join us on Discord to get help using this SDK. Report security issues via email.

Contributors

See the contributing guide to learn how to get involved.

License

jameswritescode/libsql-c

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