Credentials

A credential represents an attestation authority in the Solana Attestation System. Credentials define who can issue attestations and what types of attestations they can issue. Each credential has a set of authorized signers who can create attestations under its authority.

Structure

The Credential struct represents a credential in the Solana Attestation System. Each credential defines an authority that can issue attestations and the signers authorized to do so.

Type Definitions

Credential

export type Credential = {
  discriminator: number; // Internal discriminator
  authority: Address; // Authority public key
  name: ReadonlyUint8Array; // Credential name
  authorizedSigners: Array<Address>; // List of authorized signers
};

Methods

Fetching Credentials

Method	Description	Parameters	Returns
`fetchCredential`	Fetches a single credential by its address	`rpc`: RPC context, `address`: Credential's address, `config?`: Fetch config	`Promise<Account<Credential>>`
`fetchMaybeCredential`	Safely fetches a credential, returns null if not found	`rpc`: RPC context, `address`: Credential's address, `config?`: Fetch config	`Promise<MaybeAccount<Credential>>`
`fetchAllCredential`	Fetches multiple credentials by their addresses	`rpc`: RPC context, `addresses`: Array of credential addresses, `config?`: Fetch config	`Promise<Account<Credential>[]>`
`fetchAllMaybeCredential`	Safely fetches multiple credentials, skips not found	`rpc`: RPC context, `addresses`: Array of credential addresses, `config?`: Fetch config	`Promise<MaybeAccount<Credential>[]>`

Serialization

Method	Description	Parameters	Returns
`getCredentialEncoder`	Gets the encoder for credential data	None	`Encoder<CredentialArgs>`
`getCredentialDecoder`	Gets the decoder for credential data	None	`Decoder<Credential>`
`getCredentialCodec`	Gets the codec for credential data	None	`Codec<CredentialArgs, Credential>`

Usage Examples

Fetching a Single Credential

const credential = await fetchCredential(rpc, credentialAddress);
console.log("Credential name:", credential.name);

Fetching Multiple Credentials

const credentials = await fetchAllCredential(rpc, [
  credential1Address,
  credential2Address
]);
credentials.forEach((credential) =>
  console.log("Credential:", credential.name)
);

Safe Fetching

const credential = await fetchMaybeCredential(rpc, credentialAddress);
if (credential) {
  console.log("Credential found:", credential.name);
} else {
  console.log("Credential not found");
}

Important Notes

The discriminator field is used internally and should not be modified
The authority field determines who has control over the credential
authorizedSigners is an array of addresses that are allowed to create attestations under this credential
The name field is stored as a byte array and should be properly encoded/decoded according to your application's needs
Only authorized signers can create attestations under a credential
The authority can modify the list of authorized signers

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