Interface HttpAgentOptions

interface HttpAgentOptions {
    fetch?: {
        (input, init?): Promise<Response>;
        (input, init?): Promise<Response>;
    };
    fetchOptions?: Record<string, unknown>;
    callOptions?: Record<string, unknown>;
    host?: string;
    identity?: types.Identity | Promise<types.Identity>;
    ingressExpiryInMinutes?: number;
    credentials?: {
        name: string;
        password?: string;
    };
    useQueryNonces?: boolean;
    retryTimes?: number;
    backoffStrategy?: BackoffStrategyFactory;
    verifyQuerySignatures?: boolean;
    logToConsole?: boolean;
    rootKey?: ArrayBuffer;
}

Hierarchy (view full)

Properties

fetch? fetchOptions? callOptions? host? identity? ingressExpiryInMinutes? credentials? useQueryNonces? retryTimes? backoffStrategy? verifyQuerySignatures? logToConsole? rootKey?

Properties

Optional fetch

fetch?: {
    (input, init?): Promise<Response>;
    (input, init?): Promise<Response>;
}

Type declaration

Optional fetchOptions

fetchOptions?: Record<string, unknown>

Optional callOptions

callOptions?: Record<string, unknown>

Optional host

host?: string

Optional identity

identity?: types.Identity | Promise<types.Identity>

Optional ingressExpiryInMinutes

ingressExpiryInMinutes?: number

The maximum time a request can be delayed before being rejected.

Default

5 minutes

Optional credentials

credentials?: {
    name: string;
    password?: string;
}

Type declaration

  • name: string
  • Optional password?: string

Optional useQueryNonces

useQueryNonces?: boolean

Adds a unique Nonce with each query. Enabling will prevent queries from being answered with a cached response.

Example

const agent = new HttpAgent({ useQueryNonces: true });
agent.addTransform(makeNonceTransform(makeNonce);

Default

false

Optional retryTimes

retryTimes?: number

Number of times to retry requests before throwing an error

Default

3

Optional backoffStrategy

backoffStrategy?: BackoffStrategyFactory

The strategy to use for backoff when retrying requests

Optional verifyQuerySignatures

verifyQuerySignatures?: boolean

Whether the agent should verify signatures signed by node keys on query responses. Increases security, but adds overhead and must make a separate request to cache the node keys for the canister's subnet.

Default

true

Optional logToConsole

logToConsole?: boolean

Whether to log to the console. Defaults to false.

Optional rootKey

rootKey?: ArrayBuffer

Alternate root key to use for verifying certificates. If not provided, the default IC root key will be used.

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fetchfetchOptionscallOptionshostidentityingressExpiryInMinutescredentialsuseQueryNoncesretryTimesbackoffStrategyverifyQuerySignatureslogToConsolerootKey