Can I make swagger-php use arrays on the query str

Question

I use Swagger-php. When I define a parameter that's on the query string it can be an array. But from what I can see, it doesn't support this kind of querystring:

https://api.domain.tld/v1/objects?q[]=1&q[]=5&q[]=12

I believe this would be set in the collectionFormatfield if possible. Currently I've just been using pipes, but I want to use the above format, and have Swagger-UI reflect this, too. However, I read this github issue which has left me wondering if this is actually possible and I've just missed it?

An example of my Swagger-PHP definition:

/**
*     @SWG\Parameter(
*         name="ids",
*         in="query",
*         description="A list of IDs (separated by pipes) to filter the Returns",
*         required=false,
*         type="array",
*         @SWG\Items(
*             type="integer",
*             format="int32"
*         ),
*         collectionFormat="pipes"
*     )
*/

Which results in the following JSON:

"parameters": {
    "ids": {
        "name": "ids",
        "in": "query",
        "description": "A list of IDs (separated by pipes) to filter the Returns",
        "required": false,
        "type": "array",
        "items": {
            "type": "integer",
            "format": "int32"
        },
        "collectionFormat": "pipes"
    }
}

Answer 1

Disclaimer: im using SwaggerUI, but this might work for you as well.

I was also wondering about this for some time, but i decided to go through the js code and see if i can change/fix it there and i noticed these few lines of code:

if (type === 'brackets' || type === 'multi') {
    var bracket = type === 'brackets' ? '[]' : ''
    for (var i = 0; i < value.length; i++) {
        if (i > 0) {encoded += '&';}

        encoded += this.encodeQueryParam(name) + bracket + '=' + this.encodeQueryParam(value[i]);
    }
}

So it seems there is a collectionFormat 'brackets' that was not defined in the OpenAPI v2 specification. Tried it out and it seems to be working.

Answer 2

Please go through this; this is work for me

 /**
 *     @SWG\Parameter(
 *         name="id[]",
 *         in="query",
 *         description="A list of IDs (separated by new lines) to filter 
            the Returns",
 *         required=false,
 *         type="array",
 *         collectionFormat="multi",
 *        @SWG\Items(
 *             type="integer",
 *             format="int32"
 *         ),
 *         uniqueItems=true,
 *     )
 */

Answer 3

Following code works fine: See the ScreenShot

'"parameters": [

      {

        "name": "fav",

        "description": "Enter ids of Favoruite",

        "in": "formData",

        "type": "array",

        "items": {

          "type": "integer",

          "format": "int32"

        },

        "paramType": "form",

        "required": true

      }],'

Answer 4

Unfortunately, it is not possible to get exactly the URL you provide (https://api.domain.tld/v1/objects?q[]=1&q[]=5&q[]=12) for an array query parameter.

Assuming that you want to define a 1 dimension array query parameter (the github issue you're refering to concerns multi-dimensional arrays), here's what the current OpenAPI (fka. Swagger) Specification can propose:

• If you use an array with a collection format like pipes (you can also use csv, ssv or tsv to get different separators) the URL will look like this:

  https://api.domain.tld/v1/objects?q=1|5|12
  

  But this is not the syntax you're looking for: all array items are defined in a single q query parameter.

• Fortunately, there is another collection format multi allowing to define each array's item in its own q parameter, with this one you can almost get what you want minus the []:

  https://api.domain.tld/v1/objects?q=1&q=5&q=12
  

You can read more about this in this OpenAPI (fka. Swagger) tutorial (disclosure: I wrote it) and in the specification itself (ParameterObject description)

Answer 5

/**
 *     @SWG\Parameter(
 *         name="q[]",
 *         in="query",
 *         description="A list of IDs (separated by new lines) to filter the Returns",
 *         required=false,
 *         type="array",
 *         collectionFormat="multi",
 *         uniqueItems=true,
 *     )
 */

This will result in something similiar to this

{
    "name": "q[]",
    "in": "query",
    "description": "type",
    "required": false,
    "type": "array",
    "collectionFormat": "multi",
    "uniqueItems": true
}