Walkthroughs
Query surfaces
Fluent builder, Mango, and Prisma-style queries on one engine.
All surfaces compile to the same QueryAst and execute through @melon-db/db.
Where to try
| Surface | Example location |
|---|---|
Fluent (@melon-db/db-query) | playground-rn-dev Query demos, playground-web |
Mango (@melon-db/db-query-mango) | playground-rn-dev Demos screen |
Prisma-style (@melon-db/db-prisma) | useFindMany with where / orderBy / include in rn-dev |
Fluent
const q = createQueryFactory(schema);
const ast = q.from<Task>('tasks').where('status', 'eq', 'open').toAst();
await db.collection('tasks').query(ast).fetch();Mango
const compiler = createMangoCompiler();
const prepared = compiler.compile(
{ selector: { status: 'open' }, limit: 10 },
schema,
'tasks',
);Prisma-style
const rows = await useFindMany<Task>('tasks', {
where: { status: 'open' },
orderBy: { priority: 'desc' },
take: 5,
});Verify
- Open tasks from fluent and Mango hooks match in rn-dev demos.
- Devtools shows
source: melon|mango|prismaon query snapshots. - Unsupported operators fail at compile time (see Mango package README).