simple-leveled-log-methods
Version:
a simple and opinionated logging library. plays well with aws lambda + cloudwatch.
39 lines • 1.86 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.formatLogContentsForEnvironment = void 0;
const constants_1 = require("./constants");
const identifyEnvironment_1 = require("./identifyEnvironment");
const formatLogContentsForEnvironment = ({ level, timestamp, message, metadata, }) => {
const env = (0, identifyEnvironment_1.identifyEnvironment)();
// if its a "local" environment, then dont stringify the contents - but stringify the metadata to cut down on visual noise
if (env === constants_1.SupportedEnvironment.LOCAL) {
return {
level,
timestamp,
message,
metadata: JSON.stringify(metadata), // json stringify it to cut down on the visual noise in the console
};
}
// if its an aws-lambda environment, then stringify the contents - without stringifying the metadata - to make sure log is fully readable and parseable by cloudwatch
if (env === constants_1.SupportedEnvironment.AWS_LAMBDA) {
return JSON.stringify({
level,
timestamp,
message,
metadata,
});
}
// if its a web-browser environment, then dont stringify the contents - nor the metadata - to make sure log is fully accessible through console devtools
if (env === constants_1.SupportedEnvironment.WEB_BROWSER) {
return {
level,
timestamp,
message,
metadata,
};
}
// if it was not one of the above, we have not supported this environment yet
throw new Error('unsupported environment detected. this should never occur - and is a bug within simple-leveled-log-methods'); // fail fast
};
exports.formatLogContentsForEnvironment = formatLogContentsForEnvironment;
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