get-env-or-die
Version:
Utility to get and typecast environment variables.
81 lines • 9.11 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.getRegExpEnv = exports.getDateEnv = exports.getUrlEnv = exports.getArrayEnv = exports.getBoolEnv = exports.getIntEnv = exports.getStringEnv = exports.getEnv = void 0;
const url_1 = require("url");
const getEnv = (name, fallback) => {
return (0, exports.getStringEnv)(name, fallback);
};
exports.getEnv = getEnv;
const getStringEnv = (name, fallback) => {
return genericGetEnv(name, fallback);
};
exports.getStringEnv = getStringEnv;
const getIntEnv = (name, fallback) => {
const env = genericGetEnv(name, fallback);
const int = parseInt(env, 10);
if (isNaN(int)) {
throw new Error(`Env ${name} is not an integer.`);
}
return int;
};
exports.getIntEnv = getIntEnv;
const getBoolEnv = (name, fallback) => {
let env = genericGetEnv(name, fallback);
if (typeof env === 'boolean')
return env;
env = env.toLowerCase();
if (env === '1' || env === 'true')
return true;
if (env === '0' || env === 'false')
return false;
throw new Error(`Env ${name} is not a boolean.`);
};
exports.getBoolEnv = getBoolEnv;
const getArrayEnv = (name, fallback) => {
const env = genericGetEnv(name, fallback);
if (Array.isArray(env))
return env;
return env.split(',');
};
exports.getArrayEnv = getArrayEnv;
const getUrlEnv = (name, fallback) => {
const env = genericGetEnv(name, fallback);
try {
return new url_1.URL(env);
}
catch (_a) {
throw new Error(`Env ${name} is not an url.`);
}
};
exports.getUrlEnv = getUrlEnv;
const getDateEnv = (name, fallback) => {
const env = genericGetEnv(name, fallback);
const date = new Date(env);
if (date.toString() === 'Invalid Date') {
throw new Error(`Env ${name} is not a date.`);
}
return date;
};
exports.getDateEnv = getDateEnv;
const getRegExpEnv = (name, fallback) => {
const env = genericGetEnv(name, fallback);
if (env instanceof RegExp)
return env;
try {
const match = env.match(new RegExp('^/(.*?)/([gimy]*)$'));
return new RegExp(match[1], match[2]);
}
catch (_a) {
throw new Error(`Env ${name} is not a regExp.`);
}
};
exports.getRegExpEnv = getRegExpEnv;
const genericGetEnv = (name, fallback) => {
const env = process.env[name];
if (env)
return env;
if (fallback !== undefined)
return fallback;
throw new Error(`Env ${name} does not exist and no fallback value provided.`);
};
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