32 lines
1016 B
Markdown
32 lines
1016 B
Markdown
0x packages are promise-based libraries. This means that whenever an asynchronous call is required, the library method will return a native Javascript promise. You can therefore choose between using `promise` or `async/await` syntax when calling our async methods.
|
|
|
|
_Async/await syntax (recommended):_
|
|
|
|
```javascript
|
|
try {
|
|
const signature = await signatureUtils.ecSignOrderHashAsync(
|
|
providerEngine,
|
|
orderHashHex,
|
|
maker,
|
|
SignerType.Default,
|
|
);
|
|
} catch (error) {
|
|
console.log('Caught error: ', error);
|
|
}
|
|
```
|
|
|
|
_Promise syntax:_
|
|
|
|
```javascript
|
|
signatureUtils
|
|
.ecSignOrderHashAsync(providerEngine, orderHashHex, maker, SignerType.Default)
|
|
.then(function(signature) {
|
|
console.log(signature);
|
|
})
|
|
.catch(function(error) {
|
|
console.log('Caught error: ', error);
|
|
});
|
|
```
|
|
|
|
As is the convention with promise-based libraries, if an error occurs, it is thrown. It is the callers responsibility to catch thrown errors and to handle them appropriately.
|