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'use strict'
var jsonSafeStringify = require('json-stringify-safe')
, crypto = require('crypto')
function deferMethod() {
if (typeof setImmediate === 'undefined') {
return process.nextTick
}
return setImmediate
}
function isFunction(value) {
return typeof value === 'function'
}
function paramsHaveRequestBody(params) {
return (
params.body ||
params.requestBodyStream ||
(params.json && typeof params.json !== 'boolean') ||
params.multipart
)
}
function safeStringify (obj) {
var ret
try {
ret = JSON.stringify(obj)
} catch (e) {
ret = jsonSafeStringify(obj)
}
return ret
}
function md5 (str) {
return crypto.createHash('md5').update(str).digest('hex')
}
function isReadStream (rs) {
return rs.readable && rs.path && rs.mode
}
function toBase64 (str) {
return (new Buffer(str || '', 'utf8')).toString('base64')
}
exports.isFunction = isFunction
exports.paramsHaveRequestBody = paramsHaveRequestBody
exports.safeStringify = safeStringify
exports.md5 = md5
exports.isReadStream = isReadStream
exports.toBase64 = toBase64
exports.defer = deferMethod()
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