Can't understand this JSON schema from the Swish QR Code API - json

Question

I'm trying to use an API but the documentation is really bad. I got this JSON schema but I don't understand it. What am I supposed to include in the request?
url: https://mpc.getswish.net/qrg-swish/api/v1/prefilled
I have tried this but it doesn't work:
{
"payee":{
"editable":{
"editable":"false"
},
"swishString":{
"value":"0721876507"
}
},
"size":600,
"border":20,
"transparent":false,
"format":"png"
}
Here's the JSON schema
{
"$schema": "http://json-schema.org/draft-04/schema#",
"title": "Swish pre-filled qr code generator",
"description": "REST interface to get a QR code that the Swish app will interpret as a pre filled code",
"definitions": {
"editable": {
"description ": "Controls if user can modify this value in Swish app or not",
"type": "object",
"properties": {
"editable": {
"type": "boolean",
"default": false
}
}
},
"swishString": {
"type": "object",
"properties": {
"value": {
"type": "string",
"maxLength": 70
}
},
"required": [
"value"
]
},
"swishNumber": {
"type": "object",
"properties": {
"value": {
"type": "number"
}
},
"required": [
"value"
]
}
},
"type": "object",
"properties": {
"format": {
"enum": [
"jpg",
"png",
"svg"
]
},
"payee": {
"description": "Payment receiver",
"allOf": [
{
"$ref": "#/definitions/editable"
},
{
"$ref": "#/definitions/swishString"
}
]
},
"amount": {
"description": "Payment amount",
"allOf": [
{
"$ref": "#/definitions/editable"
},
{
"$ref": "#/definitions/swishNumber"
}
]
},
"message": {
"description": "Message for payment",
"allOf": [
{
"$ref": "#/definitions/editable"
},
{
"$ref": "#/definitions/swishString"
}
]
},
"size": {
"description": "Size of the QR code. The code is a square, so width and height are the same. Not required is the format is svg",
"value": "number",
"minimum": 300
},
"border": {
"description": "Width of the border.",
"type": "number"
},
"transparent": {
"description": "Select background color to be transparent. Do not work with jpg format.",
"type": "boolean"
}
},
"required": [
"format"
],
"anyOf": [
{
"required": [
"payee"
]
},
{
"required": [
"amount"
]
},
{
"required": [
"message"
]
}
],
"additionalProperties": false,
"maxProperties": 5
}
The API should return a QR code.

Answer 1

To be honest, I have not taken the time to learn JSON schema, but your example should probably look something like this:
{
"payee": {
"value": "0721876507",
"editable": false
},
"size": 600,
"border": 20,
"transparent": false,
"format": "png"
}
There are other parameters you may choose to utilize:
{
"payee": {
"value": "1239006032",
"editable": false
},
"message": {
"value": "LIV",
"editable": true
},
"amount": {
"value": 100,
"editable": true
},
"format": "png",
"size": 300,
"border": 0,
"transparent": true
}
Honestly, I think the developers behind the Swish APIs are trying to look smart by complicating things. They should, of course, have provided example JSON data instead of forcing consumers to understand their JSON schema. Also, I believe their published schema is wrong. The second example I provided works even though it doesn't validate according to the JSON schema ("Object property count 7 exceeds maximum count of 5").

Answer 2

Here is a minimal and pretty useless request that returns a valid QR-code
{
"format": "png",
"size": 300
}
And here is a more usable example that works
{
"format": "png",
"size": 300,
"transparent": false,
"amount": {
"value": 999.99,
"editable": true
},
"payee": {
"value": "0701000000",
"editable": false
},
"message": {
"value": "Hello",
"editable": false
}
}