Pre-request Script for postman 技巧

http_header.js

// 生成http Date
var today = new Date()

var apiDate = today.toUTCString()

postman.setEnvironmentVariable("api-date", apiDate);

// 获取请求method
var method = request.method

var contentMd5 = ""

var contentLength = ""

if (method === "POST") {
    
    // 获取请求的body
    var body = request.data
    
    // 计算MD5
    contentMd5 = CryptoJS.enc.Base64.stringify(CryptoJS.enc.Utf8.parse(CryptoJS.MD5(body).toString()))
    
    contentLength = body.length
    
    postman.setEnvironmentVariable("api-content-md5", contentMd5);
}

var contentType = request.headers["Content-Type"]

// 有时候需要小写需要看版本
// var contentType = request.headers["content-type"] 

var string_sig = method + "\n" + contentMd5 + "\n" + contentType + "\n" + contentLength + "\n" + apiDate

// 计算加密
// pm.environment.get("auth-prefix")
// pm.globals.get("pwd")

var apiAuth = environment["auth-prefix"] + CryptoJS.enc.Base64.stringify(CryptoJS.HmacSHA256(string_sig, environment["pwd"]))

// pm.environment.set("api-auth", apiAuth);
// 
// pm.globals.set("variable_key", "variable_value");
postman.setEnvironmentVariable("api-auth", apiAuth);






////////////////////////////////////////////////////// tests


var jsonData = JSON.parse(responseBody);

tests["Status code is 200"] = responseCode.code === 200;

tests["response body code is 0"] = jsonData.code === 0;

tests["erros is null"] = jsonData.errors === undefined;










////////////// 
//Base64 Encode
var words = CryptoJS.enc.Utf8.parse('Hello CryptoJS');
var base64 = CryptoJS.enc.Base64.stringify(words);

//Base64 Decode
let parsedWords = CryptoJS.enc.Base64.parse(base64);
let parsedString = parsedWords.toString(CryptoJS.enc.Utf8);

// MD5 Encode
var hash = CryptoJS.MD5(str).toString();


// timestamp
var date = new Date();
var time = (date.getTime() / 1000) + 600;