Javascript 更改预请求脚本中重用的JSON主体变量 Postman

postman Run Collection可以通过更改正文内容来使用相同的URL进行重复API调用.

Mocking server

另存为server.js

const express = require('express');
const fs = require('fs');
const multer = require('multer')
const cors = require('cors');

const app = express();

// for 表格-日期
const forms = multer();
app.use(forms.array()); 

app.use(cors());
const PORT = 3000;

// Function to generate random 5-digit number
function generateRandomNumber() {
    return Math.floor(10000 + Math.random() * 90000);
}

app.post('/v1/address', (req, res) => {
    fs.readFile('address-data.json', 'utf8', (err, data) => {
        if (err) {
            console.error('Error reading file:', err);
            res.status(500).send('Internal Server Error');
            return;
        }

        try {
            const jsonData = JSON.parse(data);
            res.json(jsonData);
        } catch (error) {
            console.error('Error parsing JSON:', error);
            res.status(500).send('Internal Server Error');
        }
    });
});


app.post('/v1/request', (req, res) => {
    const { FullName, ApplicantWebGuid, Address } = req.body;
    // Form data print
    console.log(`FullName: ${FullName}`);
    console.log(`ApplicantWebGuid: ${ApplicantWebGuid}`);
    console.log(`Address: ${Address}`);
    res.json({
        Application: 'virtual Application',
        name: FullName,
        id: ApplicantWebGuid,
        address: Address,
        result: 'Approved'
    });
});

// Start the server
app.listen(PORT, () => {
    console.log(`Server is running on http://localhost:${PORT}`);
});

Address data

模拟服务器将使用此地址 另存为'address-data.json'

{
    "data": [
        {
            "FullName" : "John Doe",
            "ApplicantWebGuid": "12345",
            "Address": "Main Street"
        },
        {
            "FullName" : "Jack Brown",
            "ApplicantWebGuid": "67890",
            "Address": "Main Street"
        }
    ]
}

安装服务器依赖项

npm install express multer cors

运行服务器

node server.js

API Test

获取地址 URL

http://localhost:3000/v1/address

申请申请 URL

POST http://localhost:3000/v1/request

表格-日期

FullName : John Doe
ApplicantWebGuid: 12345
Address: Main Street

Loop Test

节省1-1-demo.postman_collection.json

{
    "info": {
        "_postman_id": "b0791408-a367-47c1-a96c-3b305a634c10",
        "name": "1-1-demo",
        "schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json",
        "_exporter_id": "1826150"
    },
    "item": [
        {
            "name": "Get Address",
            "event": [
                {
                    "listen": "test",
                    "script": {
                        "exec": [
                            "const jsonData = pm.response.json();\r",
                            "const FullNames = jsonData.data.map(item => item.FullName);\r",
                            "const ApplicantWebGuids = jsonData.data.map(item => item.ApplicantWebGuid);\r",
                            "const Addresss = jsonData.data.map(item => item.Address);\r",
                            "pm.environment.set('FullNames', JSON.stringify(FullNames));\r",
                            "pm.environment.set('ApplicantWebGuids', JSON.stringify(ApplicantWebGuids));\r",
                            "pm.environment.set('Addresss', JSON.stringify(Addresss));\r",
                            "console.log(\"FullNames data: \" + pm.environment.get(\"FullNames\"));\r",
                            "console.log(\"ApplicantWebGuids data: \" + pm.environment.get(\"ApplicantWebGuids\"));\r",
                            "console.log(\"Addresss data: \" + pm.environment.get(\"Addresss\"));"
                        ],
                        "type": "text/javascript"
                    }
                }
            ],
            "request": {
                "method": "POST",
                "header": [],
                "url": {
                    "raw": "http://localhost:3000/v1/address",
                    "protocol": "http",
                    "host": [
                        "localhost"
                    ],
                    "port": "3000",
                    "path": [
                        "v1",
                        "address"
                    ]
                }
            },
            "response": []
        },
        {
            "name": "Request A",
            "event": [
                {
                    "listen": "test",
                    "script": {
                        "exec": [
                            "const jsonData = pm.response.json();\r",
                            "\r",
                            "console.log(\"FullName: \" + pm.environment.get(\"FullName\"));\r",
                            "\r",
                            "let FullNames = JSON.parse(pm.environment.get(\"FullNames\"));\r",
                            "if (FullNames.length > 0){\r",
                            "    postman.setNextRequest(\"Request A\");\r",
                            "}\r",
                            "\r",
                            "const FullName = jsonData.name;\r",
                            "\r",
                            "pm.test('FullName suhold be applicant equal', function () {\r",
                            "    pm.expect(FullName).to.eql(pm.environment.get(\"FullName\"));\r",
                            "});"
                        ],
                        "type": "text/javascript"
                    }
                },
                {
                    "listen": "prerequest",
                    "script": {
                        "exec": [
                            "let FullNames = JSON.parse(pm.environment.get(\"FullNames\"));\r",
                            "console.log(FullNames);\r",
                            "pm.environment.set(\"FullName\", FullNames.shift())\r",
                            "pm.environment.set(\"FullNames\", JSON.stringify(FullNames));\r",
                            "\r",
                            "let ApplicantWebGuids = JSON.parse(pm.environment.get(\"ApplicantWebGuids\"));\r",
                            "console.log(ApplicantWebGuids);\r",
                            "pm.environment.set(\"ApplicantWebGuid\", ApplicantWebGuids.shift())\r",
                            "pm.environment.set(\"ApplicantWebGuids\", JSON.stringify(ApplicantWebGuids));\r",
                            "\r",
                            "let Addresss = JSON.parse(pm.environment.get(\"Addresss\"));\r",
                            "console.log(Addresss);\r",
                            "pm.environment.set(\"Address\", Addresss.shift())\r",
                            "pm.environment.set(\"Addresss\", JSON.stringify(Addresss));"
                        ],
                        "type": "text/javascript"
                    }
                }
            ],
            "request": {
                "method": "POST",
                "header": [],
                "body": {
                    "mode": "formdata",
                    "formdata": [
                        {
                            "key": "FullName",
                            "value": "{{FullName}}",
                            "type": "text"
                        },
                        {
                            "key": "ApplicantWebGuid",
                            "value": "{{ApplicantWebGuid}}",
                            "type": "text"
                        },
                        {
                            "key": "Address",
                            "value": "{{Address}}",
                            "type": "text"
                        }
                    ]
                },
                "url": {
                    "raw": "http://localhost:3000/v1/request",
                    "protocol": "http",
                    "host": [
                        "localhost"
                    ],
                    "port": "3000",
                    "path": [
                        "v1",
                        "request"
                    ]
                }
            },
            "response": []
        }
    ]
}

Import this collection into Postman

Run collection

Result

具有不同两个人名的相同URL API调用 和控制台屏幕上的测试登录结果.

http://localhost:3000/v1/request

Keys

Pre-request Scripts选项卡获取人员信息

let FullNames = JSON.parse(pm.environment.get("FullNames"));
console.log(FullNames);
pm.environment.set("FullName", FullNames.shift())
pm.environment.set("FullNames", JSON.stringify(FullNames));

let ApplicantWebGuids = JSON.parse(pm.environment.get("ApplicantWebGuids"));
console.log(ApplicantWebGuids);
pm.environment.set("ApplicantWebGuid", ApplicantWebGuids.shift())
pm.environment.set("ApplicantWebGuids", JSON.stringify(ApplicantWebGuids));

let Addresss = JSON.parse(pm.environment.get("Addresss"));
console.log(Addresss);
pm.environment.set("Address", Addresss.shift())
pm.environment.set("Addresss", JSON.stringify(Addresss));

Body picked up one of people

Tests选项卡判断匹配的用户是否正确

const jsonData = pm.response.json();

console.log("FullName: " + pm.environment.get("FullName"));

let FullNames = JSON.parse(pm.environment.get("FullNames"));
if (FullNames.length > 0){
    postman.setNextRequest("Request A");
}

const FullName = jsonData.name;

pm.test('FullName suhold be applicant equal', function () {
    pm.expect(FullName).to.eql(pm.environment.get("FullName"));
});