CODEWITHSUNDEEP
arraysrubyjsonhash
Željko Sosic
Željko Sosic

Reputation: 39

Ruby: integrate a ruby key/value-hash in an existing JSON string

The JSON-String:

jsonString = {"string1" => {"test1" => "test2"}}

results (with JSON.pretty_generate) in a pretty printed:

{
    "string1":
    {
        "test1": "test2"
    }
}

But when I try to add all elements of two arrays into this JSON-String

keys = [:key0, :key1]
values = [:value0, :value1]

my_hash = Hash[keys.zip values]

jsonString = {"string1" => {"test1" => "test2", my_hash}}

I'm always getting a:

syntax error, unexpected '}', expecting => jsonString = {"string1" => {"test1" => "test2", my_hash}}

I would have expected a behavior like this:

jsonString = {"string1" => {"test1" => "test2", keys[0] => values[0], keys[1] => values[1]}}

Output:

{
    "string1":
    {
        "test1": "test2",
        "key0": "value0",
        "key1": "value1"
    }
}

Is there a way to this using the hash-mechanism?

Thanks a lot.

Upvotes: 1

Views: 87

Answers (1)

user12341234
user12341234

Reputation: 7223

Try jsonString.merge(my_hash) ?

My understanding is that the variable called jsonString is actually a hash, not a json string. If you wanted to convert that hash to a real JSON string, you could import the json module (using require 'json') than call jsonStrong.to_json, but once you've converted the hash to a string it's more difficult to had other hashes to it. It's best to add all the hashes together, then convert the result to json.

Upvotes: 1

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