英文:
golang struct for json with arbitrary keys
问题
我正在尝试编写一个可以处理像这样的JSON响应的结构类型：
{"items":[{"name": "thing","image_urls": {"50x100": [{"url": "http://site.com/images/1/50x100.jpg","width": 50,"height": 100}, {"url": "http://site.com/images/2/50x100.jpg","width": 50,"height": 100}],"200x300": [{"url": "http://site.com/images/1/200x300.jpg","width": 200,"height": 300}],"400x520": [{"url": "http://site.com/images/1/400x520.jpg","width": 400,"height": 520}]}}
由于键名每次都不相同...不同的响应可能有更多或更少的键，不同的键，而且如你所见，对于特定大小的50x100返回多个图像，我该如何创建与之匹配的结构？
我可以这样做：
type ImageURL struct {Url stringWidth, Height int}
对于单个项目，以及特定键的列表。但是包含的结构是什么样的？
类似于：
type Images struct {50x100 []ImageURL...}type Items struct {name stringImage_Urls []Images}
可能会起作用，但我无法枚举所有可能的图像大小响应。而且，最后那个Image_Urls并不真正是一个列表。如果可能的话，我希望能够直接将其转换为json.Unmarshal。
英文:
I am trying to write a struct type that can handle a json response like this
{"items":[{"name": "thing","image_urls": {"50x100": [{"url": "http://site.com/images/1/50x100.jpg","width": 50,"height": 100}, {"url": "http://site.com/images/2/50x100.jpg","width": 50,"height": 100}],"200x300": [{"url": "http://site.com/images/1/200x300.jpg","width": 200,"height": 300}],"400x520": [{"url": "http://site.com/images/1/400x520.jpg","width": 400,"height": 520}]}}
Since the keys are not the same every time... a different response may have more or less keys, different ones, and as you can see with the 50x100 return multiple images for a particular size how can I create a struct that matches this?
I can do like:
type ImageURL struct {Url stringWidth, Height int}
for an individual item, and a list of them for a particular key. But how does the containing struct look?
Something like:
type Images struct {50x100 []ImageURL...}type Items struct {name stringImage_Urls []Images}
Might work, but I can't enumerate all of the possible image size responses. Also that Image_Urls at the end there isn't truly a list. I'd like to be able to dump it right into json.Unmarshal if possible.
答案1
得分: 16
你的json对我来说更像是一个映射。
type Items map[string][]ImageUrl
应该可以满足你的需求。
英文:
Your json looks more like a map to me.
type Items map[string][]ImageUrl
should do what you want.
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论