@inward/extension-logging
Version:
LoopBack Logging for Winston and Fluentd
47 lines • 2.01 kB
JavaScript
;
// Copyright IBM Corp. 2019. All Rights Reserved.
// Node module: @inward/extension-logging
// This file is licensed under the MIT License.
// License text available at https://opensource.org/licenses/MIT
Object.defineProperty(exports, "__esModule", { value: true });
exports.InvocationLoggingInterceptor = void 0;
const tslib_1 = require("tslib");
const context_1 = require("@inward/context");
const util_1 = require("util");
const keys_1 = require("../keys");
/**
* A local interceptor that provides logging for method invocations.
*/
let InvocationLoggingInterceptor = /** @class */ (() => {
let InvocationLoggingInterceptor = class InvocationLoggingInterceptor {
constructor(logger) {
this.logger = logger;
}
value() {
return this.intercept.bind(this);
}
async intercept(invocationCtx, next) {
try {
this.logger.log('verbose', util_1.format('invoking %s with:', invocationCtx.targetName, invocationCtx.args));
const result = await next();
this.logger.log('verbose', util_1.format('returned from %s:', invocationCtx.targetName, result));
return result;
}
catch (err) {
this.logger.log('error', util_1.format('error from %s', invocationCtx.targetName, err));
throw err;
}
}
};
InvocationLoggingInterceptor = tslib_1.__decorate([
context_1.bind({
tags: { [context_1.ContextTags.KEY]: keys_1.LoggingBindings.WINSTON_INVOCATION_LOGGER },
scope: context_1.BindingScope.SINGLETON,
}),
tslib_1.__param(0, context_1.inject(keys_1.LoggingBindings.WINSTON_LOGGER)),
tslib_1.__metadata("design:paramtypes", [Object])
], InvocationLoggingInterceptor);
return InvocationLoggingInterceptor;
})();
exports.InvocationLoggingInterceptor = InvocationLoggingInterceptor;
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