C＃字符串插值 - 划船双引号和卷发括号

发布于 2025-01-24 09:51:48 字数 1756 浏览 0 评论 0原文

伙计们，

我正在通过插值字符串构建一个JSON对象，而无法获得逃脱的工作方式。我必须为API使用双引号。

这不会插入卷曲括号之间的表达：

@"{{
                        ""name"":""{taskName}"", 
                        ""products"": [    
                                    {""product"": ""ndvi_image"", ""actions"": [""mapbox"", ""processed""]}, 
                                    {""product"": ""true_color"", ""actions"": [""mapbox"", ""processed""]}
                                  ], 
                        ""recurring"":true,
                        ""query"":    {
                                        ""date_from"": ""{dateFromString}"",
                                        ""date_to"": ""{dateToString}"",
                                        ""aoi"": {polygon}
                                    },
                        ""aoi_coverage_percentage"":90
                        }}";

这很明显，卷曲括号没有正确逃脱：

$"{{
                        ""name"":""{taskName}"", 
                        ""products"": [    
                                    {""product"": ""ndvi_image"", ""actions"": [""mapbox"", ""processed""]}, 
                                    {""product"": ""true_color"", ""actions"": [""mapbox"", ""processed""]}
                                  ], 
                        ""recurring"":true,
                        ""query"":    {
                                        ""date_from"": ""{dateFromString}"",
                                        ""date_to"": ""{dateToString}"",
                                        ""aoi"": {polygon}
                                    },
                        ""aoi_coverage_percentage"":90
                        }}";

我应该如何格式化它以保持内部双引号和外部托架，同时允许值在单括号内被插值？

原文

guys,

I'm building a JSON object from an interpolated string, and not getting how escaping works. I have to use double quotes for the API.

This does not interpolate the expressions between the curly braces:

@"{{
                        ""name"":""{taskName}"", 
                        ""products"": [    
                                    {""product"": ""ndvi_image"", ""actions"": [""mapbox"", ""processed""]}, 
                                    {""product"": ""true_color"", ""actions"": [""mapbox"", ""processed""]}
                                  ], 
                        ""recurring"":true,
                        ""query"":    {
                                        ""date_from"": ""{dateFromString}"",
                                        ""date_to"": ""{dateToString}"",
                                        ""aoi"": {polygon}
                                    },
                        ""aoi_coverage_percentage"":90
                        }}";

This throws a bunch of errors-apparently, the curly brackets are not being escaped properly:

$"{{
                        ""name"":""{taskName}"", 
                        ""products"": [    
                                    {""product"": ""ndvi_image"", ""actions"": [""mapbox"", ""processed""]}, 
                                    {""product"": ""true_color"", ""actions"": [""mapbox"", ""processed""]}
                                  ], 
                        ""recurring"":true,
                        ""query"":    {
                                        ""date_from"": ""{dateFromString}"",
                                        ""date_to"": ""{dateToString}"",
                                        ""aoi"": {polygon}
                                    },
                        ""aoi_coverage_percentage"":90
                        }}";

How should I format it in order to preserve the internal double quotes and outer brackets while allowing for the values inside the single brackets to be interpolated?

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幸福％小乖 2025-01-31 09:51:48

看来您错过了products和查询对象的逃脱：

$@"{{
    ""name"":""{taskName}"",
    ""products"": [
        {{""product"": ""ndvi_image"", ""actions"": [""mapbox"", ""processed""]}},
        {{""product"": ""true_color"", ""actions"": [""mapbox"", ""processed""]}}
    ],
    ""recurring"":true,
    ""query"": {{
        ""date_from"": ""{dateFromString}"",
        ""date_to"": ""{dateToString}"",
        ""aoi"": {polygon}
    }},
    ""aoi_coverage_percentage"":90
}}";

It seems that you have missed escape for the products and query objects:

$@"{{
    ""name"":""{taskName}"",
    ""products"": [
        {{""product"": ""ndvi_image"", ""actions"": [""mapbox"", ""processed""]}},
        {{""product"": ""true_color"", ""actions"": [""mapbox"", ""processed""]}}
    ],
    ""recurring"":true,
    ""query"": {{
        ""date_from"": ""{dateFromString}"",
        ""date_to"": ""{dateToString}"",
        ""aoi"": {polygon}
    }},
    ""aoi_coverage_percentage"":90
}}";

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脱离于你 2025-01-31 09:51:48

以防万一其他人正在考虑这样做，最好创建匿名类型并将其序列化与JSON序列化，原因有两个：

它更可读取和可维护（因为JSON，需要多长时间更改代码需要多长时间才能更改代码。结构在保持所有逃脱的顺序时发生了变化 - 尤其是在没有单元测试的情况下？
更为可靠（如果taskname）。

）下面使用JSON.NET进行序列化

var jsonObj = new {
  name = taskName,
  products = new[] {
    new { product = "ndvi_image", actions = new [] { new { mapbox = "processed" } },
    new { product = "true_color", actions = new [] { new { mapbox = "processed" } }
  },
  recurring = true,
  query = new {
    date_from = dateFromString,
    date_to = dateToString,
    aoi = polygon
  },
  aoi_coverage_percentage = 90
};

var jsonString = JsonConvert.SerializeObject(jsonObj);

Just in case someone else is considering doing the same, it would be better to create an anonymous type and serialize it to json for two reasons:

it's a lot more readable and maintainable (how long would it take someone to change the code because the json structure has changed while keeping all escapes in order -- especially if there are no unit tests?)
it's a lot more reliable (what if taskName has a double quote?)

Below uses json.net for serialization.

var jsonObj = new {
  name = taskName,
  products = new[] {
    new { product = "ndvi_image", actions = new [] { new { mapbox = "processed" } },
    new { product = "true_color", actions = new [] { new { mapbox = "processed" } }
  },
  recurring = true,
  query = new {
    date_from = dateFromString,
    date_to = dateToString,
    aoi = polygon
  },
  aoi_coverage_percentage = 90
};

var jsonString = JsonConvert.SerializeObject(jsonObj);

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命比纸薄 2025-01-31 09:51:48

除@“ ...”和$“ ...” c＃支持$@“ ...”字符串当您构建需要插值的多行字符串文字时，您正在寻找的内容：

$@"{{
    ""name"":""{taskName}"", 
    ""products"": [    
                {{""product"": ""ndvi_image"", ""actions"": [""mapbox"", ""processed""]}}, 
                {{""product"": ""true_color"", ""actions"": [""mapbox"", ""processed""]}}
              ], 
    ""recurring"":true,
    ""query"":   {{
                    ""date_from"": ""{dateFromString}"",
                    ""date_to"": ""{dateToString}"",
                    ""aoi"": {polygon}
                }},
    ""aoi_coverage_percentage"":90
}}";

In addition to @"..." and $"..." C# supports $@"..." strings, which is what you are looking for when you build multi-line string literals that need to be interpolated:

$@"{{
    ""name"":""{taskName}"", 
    ""products"": [    
                {{""product"": ""ndvi_image"", ""actions"": [""mapbox"", ""processed""]}}, 
                {{""product"": ""true_color"", ""actions"": [""mapbox"", ""processed""]}}
              ], 
    ""recurring"":true,
    ""query"":   {{
                    ""date_from"": ""{dateFromString}"",
                    ""date_to"": ""{dateToString}"",
                    ""aoi"": {polygon}
                }},
    ""aoi_coverage_percentage"":90
}}";

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