How to use @loopback/extension-logging - 3 common examples
To help you get started, we’ve selected a few @loopback/extension-logging examples, based on popular ways it is used in public projects.
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strongloop / loopback-next / acceptance / extension-logging-fluentd / src / __tests__ / accpetance / fluent.acceptance.ts View on Github 
it('throws error if fluent is not configured', async function() {
if (process.env.FLUENTD_SERVICE_PORT_TCP == null) return this.skip();
// Remove the configuration for fluent sender
app.unbind(BindingKey.buildKeyForConfig(LoggingBindings.FLUENT_SENDER));
return expect(app.get(LoggingBindings.FLUENT_SENDER)).to.be.rejectedWith(
/Fluent is not configured\. Please configure logging\.fluent\.sender\./,
);
});it('throws error if fluent is not configured', async function() {
if (process.env.FLUENTD_SERVICE_PORT_TCP == null) return this.skip();
// Remove the configuration for fluent sender
app.unbind(BindingKey.buildKeyForConfig(LoggingBindings.FLUENT_SENDER));
return expect(app.get(LoggingBindings.FLUENT_SENDER)).to.be.rejectedWith(
/Fluent is not configured\. Please configure logging\.fluent\.sender\./,
);
});it('binds a winston transport for fluent', async function() {
if (process.env.FLUENTD_SERVICE_PORT_TCP == null) return this.skip();
const logger = await app.get(LoggingBindings.WINSTON_LOGGER);
logger.log('info', 'Hello, LoopBack!');
await sleep(100);
await expectLogsToMatch(
/LoopBack\s+\{"level"\:"info","message":"Hello, LoopBack!"\}/,
);
});@loopback/extension-logging
An extension exposes logging for Winston and Fluentd with LoopBack 4
