Files
pezkuwi-subxt/substrate/primitives/api
Tsvetomir Dimitrov dbb48a5ba2 Add conditional compilation support for iml_runtime_apis! (#14709)
* Handle `cfg_attr` in `decl_runtime_api`

* Integration tests

* UI tests

* Enable staging api tests on CI

* docs

* Comments and minor style fixes

* Fix doc comments

* Apply suggestions from code review

Co-authored-by: Bastian Köcher <git@kchr.de>

* Apply suggestions from code review

Co-authored-by: Bastian Köcher <git@kchr.de>

* Fix formatting and a compilation error

* Fix a doc comment

* Combine the errors from `ApiImplItem`

* Fix a typo in UI test

* Use attribute span when reporting multiple conditional `api_version` error

* Apply suggestions from code review

Co-authored-by: Bastian Köcher <git@kchr.de>

* Don't use `cfg_attr` for methods. Use simple feature gate instead

* Remove a stale comment

* Update primitives/api/proc-macro/src/impl_runtime_apis.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* Revert "Update primitives/api/proc-macro/src/impl_runtime_apis.rs"

This reverts commit 4da20a79bd762580ebf502e9f807c2d7e5876106.

* Code review feedback

* Style improvements

---------

Co-authored-by: Bastian Köcher <git@kchr.de>
Co-authored-by: parity-processbot <>
2023-08-24 08:06:07 +00:00
..
2020-11-05 19:18:55 +01:00

Substrate runtime api

The Substrate runtime api is the crucial interface between the node and the runtime. Every call that goes into the runtime is done with a runtime api. The runtime apis are not fixed. Every Substrate user can define its own apis with decl_runtime_apis and implement them in the runtime with impl_runtime_apis.

Every Substrate runtime needs to implement the [Core] runtime api. This api provides the basic functionality that every runtime needs to export.

Besides the macros and the [Core] runtime api, this crates provides the [Metadata] runtime api, the [ApiExt] trait, the [CallApiAt] trait and the [ConstructRuntimeApi] trait.

On a meta level this implies, the client calls the generated API from the client perspective.

License: Apache-2.0