Backends
Backends
Edit on GitHubPrimate supports writing backend logic (route files) in other programming languages than JavaScript. Non-JavaScript/TypeScript routes will be compiled to Wasm and run as WebAssembly.
As a general rule, Primate endeavors to offer the same or a similar API in
other programming languages as concerns the request object that is passed to
the route and the available handlers (view, redirect).
Supported backends
Support matrix
| Feature | JS, TS | GO | Python | Ruby |
|---|---|---|---|---|
| serving strings | ✓ | ✓ | ✓ | ✓ |
| serving objects | ✓ | ✓ | ✓ | ✓ |
| serving streams | ✓ | ✗ | ✗ | ✗ |
redirect handler |
✓ | ✓ | ✓ | ✓ |
view handler |
✓ | ✓ | ✓ | ✓ |
error handler |
✓ | ✗ | ✓ | ✓ |
request.body |
✓ | ✓ | ✓ | ✓ |
request.path |
✓ | ✓ | ✓ | ✓ |
request.query |
✓ | ✓ | ✓ | ✓ |
request.cookies |
✓ | ✓ | ✓ | ✓ |
request.headers |
✓ | ✓ | ✓ | ✓ |
request.session |
✓ | ✓ | ✓ | ✓ |
request.store.* |
✓ | ✗ | ✓ | ✗ |
Type conversions
Whenever you define and use runtime types, the request object will be augmented with dispatchers to coerce the input string into a given type. In the following is a table with the supported base types and what types they are converted to in every supported language.
| Type | JS | GO | Ruby |
|---|---|---|---|
| boolean | boolean | bool | |
| i8 | number | int8 | Integer |
| i16 | number | int16 | Integer |
| i32 | number | int32 | Integer |
| i64 | bigint | int64 | Integer |
| f32 | number | float32 | Float |
| f64 | number | float64 | Float |
| u8 | number | uint8 | Integer |
| u16 | number | uint16 | Integer |
| u32 | number | uint32 | Integer |
| u64 | bigint | uint64 | Integer |
| string | string | string | String |