faastjs
Version:
Serverless batch computing made simple.
77 lines • 6.79 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.inspectProvider = exports.log = void 0;
const tslib_1 = require("tslib");
const debug_1 = tslib_1.__importDefault(require("debug"));
const util_1 = require("util");
/**
* Faast.js loggers.
* @remarks
* Unless otherwise specified, each log is disabled by default unless the value
* of the DEBUG environment variable is set to the corresponding value. For
* example:
*
* ```
* $ DEBUG=faast:info,faast:provider <cmd>
* $ DEBUG=faast:* <cmd>
* ```
*
* Logs can also be enabled or disabled programmatically:
* ```typescript
* import { log } from "faastjs"
* log.info.enabled = true;
* log.provider.enabled = true;
* ```
*
* Each log outputs specific information:
*
* `info` - General informational logging.
*
* `minimal` - Outputs only basic information like the function name created in
* the cloud.
*
* `warn` - Warnings. Enabled by default.
*
* `gc` - Garbage collection verbose logging.
*
* `leaks` - Memory leak detector warnings for the cloud function. Enabled by
* default.
*
* `calls` - Verbose logging of each faast.js enabled function invocation.
*
* `webpack` - Verbose logging from webpack and packaging details.
*
* `provider` - Verbose logging of each interaction between faast.js runtime and
* the provider-specific implementation.
*
* `awssdk` - Verbose logging of AWS SDK. This can be useful for identifying
* which API calls are failing, retrying, or encountering rate limits.
*
* @public
*/
exports.log = {
info: (0, debug_1.default)("faast:info"),
minimal: (0, debug_1.default)("faast:minimal"),
warn: (0, debug_1.default)("faast:warning"),
gc: (0, debug_1.default)("faast:gc"),
leaks: (0, debug_1.default)("faast:leaks"),
calls: (0, debug_1.default)("faast:calls"),
webpack: (0, debug_1.default)("faast:webpack"),
provider: (0, debug_1.default)("faast:provider"),
awssdk: (0, debug_1.default)("faast:awssdk")
};
/* c8 ignore next */
function truncate(s, len) {
return s.length > len ? `${s.substr(0, len)}...` : s;
}
function inspectProvider(o) {
if (!exports.log.provider.enabled) {
return "";
}
/* c8 ignore next */
return truncate((0, util_1.inspect)(o, false, 3), 1024);
}
exports.inspectProvider = inspectProvider;
exports.log.warn.enabled = true;
exports.log.leaks.enabled = true;
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