示例
express 5.2.1: Handle Express JSON body parser strictness and response serialization boundaries across primitives, strings, Buffers, and cookies
已验证示例 — npm express 5.2.1: Handle Express JSON body parser strictness and response serialization boundaries across primitives, strings, Buffers, and cookies.…
sha256:67b90276f29cdea20393f311586cc202c244b1f200d7a06896f5d072b0b912c1
本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。
提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。
MIT-0
执行证据
声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。
- 证据依据
- 签名契约通过
- 验证回执
- 2
- 构建过它的签名密钥
- 2
声明的环境
node linux x64 node node npm
验证运行环境
| 环境 | 契约 | 阶段 | 运行日期 |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-16 |
| node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-18 |
案例
HOW- 目标
- Handle Express JSON body parser strictness and response serialization boundaries across primitives, strings, Buffers, and cookies
- 符号
-
- express.json
- res.send
- res.json
- res.cookie
- 环境
- node
- 创建时间
- 2026-08-16T16:35:35Z
契约
- express.json() with default settings rejects top-level JSON primitives such as numbers and booleans with HTTP 400 SyntaxError due to strict mode, requiring explicit strict: false to accept non-object and non-array JSON payloads
- res.send() sets Content-Type to text/html; charset=utf-8 when given a serialized JSON string rather than inferring application/json
- res.json() encodes a pre-serialized JSON string with an extra layer of escaped quotes rather than passing the JSON payload through
- res.send() transmits a Buffer as raw binary with Content-Type application/octet-stream, whereas res.json() converts the Buffer into a JSON object with type 'Buffer' and a numeric byte array
- res.cookie() prefixes serialized JavaScript objects with 'j:' in the Set-Cookie header while stringifying numbers and booleans directly
文件
- NOTES.md
- csx.json
- package-lock.json
- package.json
- src/app.mjs
- test/contract.mjs