Dynamic REST queries without OData or GraphQL.
Send ServiceQuery® JSON to your API. We compile it into LINQ expression trees and run it over IQueryable (EF Core, Cosmos, Mongo, in-memory, more). Injection-safe by design, with production guardrails.
- Expression-tree compiled (no SQL string building)
- Runs on any IQueryable provider (10+ supported)
- 94% coverage + MIT licensed (used in ServiceBricks®)
/api/users/query
{
"filters": [
{ "filterType": "equal",
"properties": ["Status"],
"values": ["Active"] },
{ "filterType": "sortdesc",
"properties": ["CreatedAt"] },
{ "filterType": "pagesize",
"values": [25] }
]
}See the Pattern
One endpoint. One line of code. Any database.
Server (C#)
app.MapPost("/users/search",
(ServiceQueryRequest request, AppDb db) =>
{
var queryable = db.Users.AsQueryable();
return Results.Ok(request.Execute(queryable));
});Client (JavaScript)
const request = new ServiceQueryRequestBuilder()
.IsEqual("Status", "Active")
.SortDesc("CreatedAt")
.Paging(1, 25)
.Build();
fetch('/users/search', {
method: 'POST',
body: JSON.stringify(request)
});Same query works on EF Core, MongoDB, Cosmos, or in-memory lists.
Why ServiceQuery®?
Concrete differentiators, not marketing adjectives.
Expression-Tree Security
We don't build SQL strings. We compile expression trees. SQL injection through query text isn't possible.
No Protocol Surface Area
Unlike OData, no special endpoints or metadata. Just JSON POST to any controller you already have.
Provider Agnostic
Any LINQ provider works. SQL Server, PostgreSQL, MongoDB, Cosmos DB, in-memory — same syntax, same behavior.
Clear Boundaries
Know what you're getting. Know what you're not.
ServiceQuery® Is For
- List endpoints where users need filtering and sorting
- REST APIs that don't want OData/GraphQL overhead
- Teams who want dynamic queries without dynamic SQL
ServiceQuery® Is Not
- A replacement for GraphQL graph traversal
- A public, unguarded query interface (use guardrails)
- For deeply nested joins or navigation properties
One Syntax, 10+ Providers
Same query works across SQL Server, PostgreSQL, MySQL, SQLite, MongoDB, Cosmos DB, Azure Tables, and any IQueryable source.
Production Ready
Built for real systems, not just demos.
Code Coverage
Licensed
Providers
Supported
Dependencies
Built-in page size limits
Cap filter depth and predicates
Async-friendly, cancellable
Logging and metrics support
Part of
The ServiceBricks® Ecosystem
ServiceQuery® works standalone with zero dependencies. It also powers all querying for ServiceBricks®, our open-source microservices foundation.
Generate complete .NET solutions from natural language. ServiceQuery® handles all the data access.
Visit ServiceBricks.comOpen Source & Free Forever
MIT licensed. Use it commercially. View the source. Join the community.