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help:hash syntax

URL search parameters after the "?" in a URL form the overall hash structure of the JSON object [1] sent to the server.

Key/value

Keys and values form a pair as a way to reference data. Each key/value pair in the search parameters is separated by an "&". The key is the text value to the left of the "=", and the "value" is the text value to the right of the "=" and may be "%" URL encoded [2].

URL parameters
limit=100&page=1
JSON object
{
    "limit": 100,
    "page": 1
}

Sub-hash

Sub-hashes are supported by using square brackets "[ ]". The text value inside the square brackets is the sub key that the value will be added to.

Single-level example
URL parameters
search[name]=test&search[order]=id&limit=20
JSON object
{
    "search": {
        "name": "test",
        "order": "id",
    },
    "limit": 20
}
Multi-level example

Sub-hashes can form deeper sub-hashes by stacking the "[ ]" terms in a row.

URL parameters
search[user][id]=1
JSON object
{
    "search": {
        "user": {
            "id": 1
        }
    }
}

Array

Arrays can be sent by appending an empty "[]" at the end of the final specifier for the key.

Single-item example
URL parameters
search[name][]=test
JSON object
{
    "search": {
        "name": ["test"]
    }
}
Multi-item example

Multiple array items are sent by using the exact same key for each value in the array.

URL parameters
search[id][]=1&search[id][]=2
JSON object
{
    "search": {
        "id": [1, 2]
    }
}
Array of files

When sending an array of files, the parameter follows a similar format, although it is treated like a hash, where each key of the hash is the index of the file in the array, starting with 0. Since files require a multi-part format, it will look like something similar to the following.

--9cab1cceecb6c4f5634bcba0e89ee77c
Content-Disposition: form-data; name="upload[files][0]"; filename="6fe571c9df2912b1ae551045c2157240.jpg"
Content-Type: image/jpeg

<FILE DATA>

See also

  • Help:Array syntax
  • Help:Chaining syntax
  • Help:API

External links

[1] https://www.w3resource.com/JSON/structures.php
[2] https://www.w3schools.com/tags/ref_urlencode.ASP

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