isSignature

isSignature(putativeSignature): putativeSignature is Signature

A type guard that accepts a string as input. It will both return true if the string conforms to the Signature type and will refine the type for use in your program.

Parameters

Parameter	Type
`putativeSignature`	`string`

Returns

putativeSignature is Signature

Example

import { isSignature } from '@solana/keys';
 
if (isSignature(signature)) {
    // At this point, `signature` has been refined to a
    // `Signature` that can be used with the RPC.
    const {
        value: [status],
    } = await rpc.getSignatureStatuses([signature]).send();
    setSignatureStatus(status);
} else {
    setError(`${signature} is not a transaction signature`);
}

isSignature

Parameters

Returns

Example

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