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import type { InStatement } from '@libsql/client';
import { createClient } from '@libsql/client';
import type { LibSQLDatabase } from 'drizzle-orm/libsql';
import { drizzle as drizzleLibsql } from 'drizzle-orm/libsql';
import { type SqliteRemoteDatabase, drizzle as drizzleProxy } from 'drizzle-orm/sqlite-proxy';
import { z } from 'zod';
import { safeFetch } from './utils.js';
const isWebContainer = !!process.versions?.webcontainer;
function applyTransactionNotSupported(db: SqliteRemoteDatabase) {
Object.assign(db, {
transaction() {
throw new Error(
'`db.transaction()` is not currently supported. We recommend `db.batch()` for automatic error rollbacks across multiple queries.'
);
},
});
}
export function createLocalDatabaseClient({ dbUrl }: { dbUrl: string }): LibSQLDatabase {
const url = isWebContainer ? 'file:content.db' : dbUrl;
const client = createClient({ url });
const db = drizzleLibsql(client);
applyTransactionNotSupported(db);
return db;
}
const remoteResultSchema = z.object({
columns: z.array(z.string()),
columnTypes: z.array(z.string()),
rows: z.array(z.array(z.unknown())),
rowsAffected: z.number(),
lastInsertRowid: z.unknown().optional(),
});
export function createRemoteDatabaseClient(appToken: string, remoteDbURL: string) {
if (appToken == null) {
throw new Error(`Cannot create a remote client: missing app token.`);
}
const url = new URL('/db/query', remoteDbURL);
const db = drizzleProxy(
async (sql, parameters, method) => {
const requestBody: InStatement = { sql, args: parameters };
const res = await safeFetch(
url,
{
method: 'POST',
headers: {
Authorization: `Bearer ${appToken}`,
'Content-Type': 'application/json',
},
body: JSON.stringify(requestBody),
},
(response) => {
throw new Error(
`Failed to execute query.\nQuery: ${sql}\nFull error: ${response.status} ${response.statusText}`
);
}
);
let remoteResult: z.infer<typeof remoteResultSchema>;
try {
const json = await res.json();
remoteResult = remoteResultSchema.parse(json);
} catch (e) {
throw new Error(
`Failed to execute query.\nQuery: ${sql}\nFull error: Unexpected JSON response. ${
e instanceof Error ? e.message : String(e)
}`
);
}
if (method === 'run') return remoteResult;
// Drizzle expects each row as an array of its values
const rowValues: unknown[][] = [];
for (const row of remoteResult.rows) {
if (row != null && typeof row === 'object') {
rowValues.push(Object.values(row));
}
}
if (method === 'get') {
return { rows: rowValues[0] };
}
return { rows: rowValues };
},
async (queries) => {
const stmts: InStatement[] = queries.map(({ sql, params }) => ({ sql, args: params }));
const res = await safeFetch(
url,
{
method: 'POST',
headers: {
Authorization: `Bearer ${appToken}`,
'Content-Type': 'application/json',
},
body: JSON.stringify(stmts),
},
(response) => {
throw new Error(
`Failed to execute batch queries.\nFull error: ${response.status} ${response.statusText}}`
);
}
);
let remoteResults: z.infer<typeof remoteResultSchema>[];
try {
const json = await res.json();
remoteResults = z.array(remoteResultSchema).parse(json);
} catch (e) {
throw new Error(
`Failed to execute batch queries.\nFull error: Unexpected JSON response. ${
e instanceof Error ? e.message : String(e)
}`
);
}
let results: any[] = [];
for (const [idx, rawResult] of remoteResults.entries()) {
if (queries[idx]?.method === 'run') {
results.push(rawResult);
continue;
}
// Drizzle expects each row as an array of its values
const rowValues: unknown[][] = [];
for (const row of rawResult.rows) {
if (row != null && typeof row === 'object') {
rowValues.push(Object.values(row));
}
}
if (queries[idx]?.method === 'get') {
results.push({ rows: rowValues[0] });
}
results.push({ rows: rowValues });
}
return results;
}
);
applyTransactionNotSupported(db);
return db;
}
|
