How to add a json string as a app setting value in config file

Question

I have a requirement whereby I need to fetch a set of jsons before making a API call. I am planning to add these json strings in app.config as shown below

 <add key="Jsons" value="{""Id"":""25"",""Name"":""Value-1""}"/>

However adding this results in a compilation error "Missing whitespace" at the start of the value. Please let me know if i am missing something. I dont want to create a separate text file to read jsons from. Thats why i decided to use app.config itself

If I dont use "" i get multiple errors

Shaiju Janardhanan
– Shaiju Janardhanan

2016-02-11 04:51:59 +00:00
Commented Feb 11, 2016 at 4:51 — Shaiju Janardhanan
– Shaiju Janardhanan, Commented Feb 11, 2016 at 4:51
Should be formated like {"Id":"25", "Name":"Value-1"}

Fergus
– Fergus

2016-02-11 04:54:29 +00:00
Commented Feb 11, 2016 at 4:54 — Fergus
– Fergus, Commented Feb 11, 2016 at 4:54
That gives formating errors

Shaiju Janardhanan
– Shaiju Janardhanan

2016-02-11 04:55:45 +00:00
Commented Feb 11, 2016 at 4:55 — Shaiju Janardhanan
– Shaiju Janardhanan, Commented Feb 11, 2016 at 4:55

Louie Almeda · Accepted Answer · 2018-01-25 22:11:16Z

13

Your quotes are not correctly formatted. Can you try this:

<add key="Jsons" value='{"Id":"25","Name":"Value-1"}'/>

edited Jan 25, 2018 at 22:11

answered Feb 11, 2016 at 4:57

Louie Almeda

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5 Comments

Fergus Over a year ago

Wow, that looks a lot like my comment??

Louie Almeda Over a year ago

@Fergus Why the down vote? I didn't saw your comment, and when I looked at it now, mine was more complete :)

Louie Almeda Over a year ago

@ShaijuJanardhanan, great, don't forget to mark it as the answer if it is :)

Shaiju Janardhanan Over a year ago

@Fergus but i couldnt figure out the issue from your answer since i had tried with proper formatting too. The single quote was what i was not using

Fergus Over a year ago

Awesome, that's the beauty of SO.

Kevin Burdett · Accepted Answer · 2016-02-11 04:59:16Z

2

An app.config is still XML! You need to use the XML escape sequence for quotes.

<add key="Jsons" value="{&quot;Id&quot;:&quot;25&quot;,&quot;Name&quot;:&quot;Value-1&quot;}"/>

answered Feb 11, 2016 at 4:59

Kevin Burdett

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1 Comment

Shaiju Janardhanan Over a year ago

That looks a lot verbose. The accepted answer actually works

alexandergs · Accepted Answer · 2016-02-11 04:59:12Z

0

I see two choices here:

Use "\" to escape:

  <add key="Jsons" value="{\"Id\":\"25\",\"Name\":\"Value-1\"}"/>

Use single quote:

<add key="Jsons" value="{'Id':'25','Name':'Value-1'}"/>

answered Feb 11, 2016 at 4:59

alexandergs

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2 Comments

Kevin Burdett Over a year ago

Though many parsers may allow it, using single quotes in JSON is technically invalid.

Luca Natali Over a year ago

It is not a valid JSON

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