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cache+retries #92

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Merged
merged 1 commit into from
Jul 1, 2024
Merged

cache+retries #92

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22 changes: 22 additions & 0 deletions src/Node.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,14 @@ export type Options = {
id?: Node["id"];
/** When true the server will omit this node's output. Default: false */
hide?: boolean;
/** Number of seconds to cache an output for this node's unique inputs. Default: null */
cache_age?: number;
/** Applies if cache_age > 0. Optionally specify a subset of keys to use when computing a cache key.
* Default: all node arguments
*/
cache_keys?: string[];
/** Max number of times to retry this node if it fails. Default: null means no retries */
max_retries?: number;
};

export abstract class Node {
Expand All @@ -22,6 +30,14 @@ export abstract class Node {
args: Object;
/** When true the server will omit this node's output. Default: false */
hide: boolean;
/** Number of seconds to cache an output for this node's unique inputs. Default: null */
cache_age?: number;
/** Applies if cache_age > 0. Optionally specify a subset of keys to use when computing a cache key.
* Default: all node arguments
*/
cache_keys?: string[];
/** Max number of times to retry this node if it fails. Default: null means no retries */
max_retries?: number;

/** TODO this field stores the last response, but it's just temporary until the internals are refactored */
protected _response: SubstrateResponse | undefined;
Expand All @@ -31,6 +47,9 @@ export abstract class Node {
this.args = args;
this.id = opts?.id || generator(this.node);
this.hide = opts?.hide || false;
this.cache_age = opts?.cache_age;
this.cache_keys = opts?.cache_keys;
this.max_retries = opts?.max_retries;
}

/**
Expand Down Expand Up @@ -103,6 +122,9 @@ export abstract class Node {
node: this.node,
args: withPlaceholders(this.args),
_should_output_globally: !this.hide,
...(this.cache_age && { _cache_age: this.cache_age }),
...(this.cache_keys && { _cache_keys: this.cache_keys }),
...(this.max_retries && { _max_retries: this.max_retries }),
};
}

Expand Down
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