KRL：将字符串解析为 JSON

发布于 2024-10-27 19:58:12 字数 416 浏览 3 评论 0原文

使用 http:get() 后，我从哈希中 pick 接收到一个字符串：

response = http:get(webservice_url, {"key1": value1, "key2": value2});
json_resp = response.pick("$..content");

但是，由于 json_resp 是一个字符串而不是一个实际的 JSON 对象，我无法运行这样的命令：

value = json_resp.pick("$..string");

有没有办法告诉 KRL 我想将 json_resp 解析为 JSON？也许是一个eval()之类的东西？

原文

After using http:get(), I receive back a string from picking the "content" from the hash:

response = http:get(webservice_url, {"key1": value1, "key2": value2});
json_resp = response.pick("$..content");

However, since json_resp is a string and not an actual JSON object, I can't run a command like this:

value = json_resp.pick("$..string");

Is there a way to tell KRL that I want to parse json_resp as JSON? An eval() or something, perhaps?

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巴黎盛开的樱花 2024-11-03 19:58:12

decode() 运算符正是您想要的。它对 JSON 字符串进行操作，尝试将其转换为本机 KRL 对象。请注意，KRL 还具有在本机 KRL 上运行的 encode()对象并返回该对象的 JSON 字符串表示形式。

response = http:get(webservice_url, {"key1": value1, "key2": value2});
json_resp = response.pick("$..content").decode();
value = json_resp.pick("$..string");
// will work since json_resp is now a native KRL object

The decode() operator does just what you want. It operates on a JSON string, attempting to convert it to a native KRL object. Note that KRL also has encode() which operates on a native KRL object and returns a JSON string representation of that object.

response = http:get(webservice_url, {"key1": value1, "key2": value2});
json_resp = response.pick("$..content").decode();
value = json_resp.pick("$..string");
// will work since json_resp is now a native KRL object

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