Crate vade_evan_substrate
source · [−]Expand description
This crate allows you to use to work with DIDs Trust and Trace, which runs on evan.network.
For this purpose a VadePlugin
implementations is exported: VadeEvanSubstrate
.
VadeEvanSubstrate
Supports creating, updating and getting DIDs and DID documents on substrate, therefore supports:
Signing substrate requests
As the did resolver instance needs to sign its requests against substrate, a remote endpoint for signing has to be provided. The DID resolver will sign requests for did_create
and did_update
. A signing endpoint has to be passed with the config argument in the constructor, e.g.:
use vade_evan_substrate::{ResolverConfig, VadeEvanSubstrate};
use vade_signer::{LocalSigner, Signer};
let signer: Box<dyn Signer> = Box::new(LocalSigner::new());
let resolver = VadeEvanSubstrate::new(ResolverConfig {
signer,
target: "127.0.0.1".to_string(),
});
When signing remotely, signing_url
will be called with a POST request. The messages that should be signed is passed to the server alongside a reference to a key like this:
{
"key": "some-key-id",
"type": "some-key-type",
"message": "sign me please"
}
Two types of of responses are supported. Successful signing results are give in this format:
{
"messageHash": "0x52091d1299031b18c1099620a1786363855d9fcd91a7686c866ad64f83de13ff",
"signature": "0xc465a9499b75eed6fc4f658d1764168d63578b05ae15305ceedc94872bda793f74cb850c0683287b245b4da523851fbbe37738116635ebdb08e80b867c0b4aea1b",
"signerAddress": "0x3daa2c354dba8d51fdabc30cf9219b251c74eb56"
}
Errors can be signaled this way:
{
"error": "key not found"
}
Compiling vade-evan-substrate
“Regular” build
No surprise here:
cargo build --release
WASM
To compile vade-evan-substrate
for wasm, use wasm pack.
Also you have to specify whether to build a browser or a nodejs environment.
nodejs:
wasm-pack build --release --target nodejs
browser:
wasm-pack build --release --target web
Re-exports
pub extern crate log;
Macros
Generates the extrinsic’s call field for a given module and call passed as &str
Generates an Unchecked extrinsic for a given module and call passed as a &str.
Structs
Message passed to vade containing the desired did implementation. Does not perform action if type does not indicate did type.
Resolver for DIDs on the Trust&Trace substrate chain