I'm attempting to fetch a custom tileset from CARTO using the documentation I found that the way to fetch from the API doc is:
curl --location --request GET 'https://gcp-us-east1.api.carto.com/v3/maps/carto_dw/tileset?name=carto-demo-data.demo_tilesets.nasadem_glo_quadgrid15' --header 'Authorization: Bearer <your access token>'
I made that request on Swift as follows:
{
let urlString = "\(environment.apiBaseURL)/v3/maps/\(environment.connection)/tileset"
return Future<CartoTileJsonResponse, Error> { [weak self] promise in
self?.session
.request(urlString,
method: .get,
parameters: ["name": tileSetName]
)
.validate()
.responseData(completionHandler: { response in
if let error = response.error {
promise(.failure(error))
return
}
guard let data = response.value else {
promise(.failure(response.error ?? NSError(domain: "unknow error", code: 999, userInfo: nil)))
return
}
do {
let cartoTileJsonResponse = try JSONDecoder().decode(CartoTileJsonResponse.self, from: data)
promise(.success(cartoTileJsonResponse))
} catch(let error) {
debugPrint(error)
promise(.failure(error))
}
})
}
}
As the name of the function says this return a new URL which I also make a GET request which finally returns a tilejson as shown:
{
"name": "NiallsFarm_Tileset_1_NDVI",
"tilejson": "3.1.0",
"center": [
-2.637422918924969,
55.96538584577466,
15
],
"description": "",
"maxzoom": 15,
"tilestats": {
"layers": [
{
"layer": "default",
"attributeCount": 2,
"count": 22146,
"geometry": "Polygon",
"attributes": [
{
"type": "String",
"attribute": "fieldName",
"categories": [
{
"category": "South Tempriggs",
"frequency": 7587
},
{
"category": "Kirklands",
"frequency": 6603
},
{
"category": "East Lothian",
"frequency": 4677
},
{
"category": "Crumstanes",
"frequency": 3279
}
]
},
{
"quantiles": {
"3": [
0.5691,
0.658
],
"4": [
0.5328,
0.6307,
0.6627
],
"5": [
0.5112,
0.5942,
0.6515,
0.6658
],
"6": [
0.5004,
0.5699,
0.6307,
0.6578,
0.6675
],
"7": [
0.4899,
0.5509,
0.6055,
0.6464,
0.6604,
0.6689
],
"8": [
0.4824,
0.5344,
0.5841,
0.6303,
0.6545,
0.6627,
0.6697
],
"9": [
0.4768,
0.5212,
0.5705,
0.6123,
0.6436,
0.6576,
0.6646,
0.6705
],
"10": [
0.4708,
0.5112,
0.5574,
0.5937,
0.6303,
0.6516,
0.6596,
0.6657,
0.6712
],
"11": [
0.4674,
0.504,
0.5447,
0.5801,
0.6151,
0.6413,
0.6555,
0.6613,
0.6666,
0.6718
],
"13": [
0.4594,
0.4931,
0.5235,
0.5607,
0.5872,
0.617,
0.6401,
0.6534,
0.6591,
0.6641,
0.6682,
0.6726
],
"14": [
0.4542,
0.4899,
0.5164,
0.5502,
0.5779,
0.6048,
0.6303,
0.6468,
0.6559,
0.6606,
0.665,
0.6688,
0.6731
],
"15": [
0.4514,
0.4866,
0.5112,
0.541,
0.5705,
0.5937,
0.6192,
0.6387,
0.6516,
0.6576,
0.6617,
0.6657,
0.6693,
0.6732
],
"16": [
0.4496,
0.4824,
0.5052,
0.5344,
0.5626,
0.5841,
0.6089,
0.6303,
0.6448,
0.6545,
0.6588,
0.6627,
0.6663,
0.6697,
0.6736
],
"17": [
0.4451,
0.4792,
0.5026,
0.5263,
0.5538,
0.5767,
0.5977,
0.6207,
0.6381,
0.6504,
0.6562,
0.66,
0.6637,
0.6669,
0.6702,
0.6738
],
"18": [
0.4417,
0.476,
0.499,
0.521,
0.547,
0.571,
0.5885,
0.612,
0.6304,
0.6434,
0.6531,
0.6578,
0.6609,
0.6646,
0.6675,
0.6706,
0.674
],
"19": [
0.4394,
0.4729,
0.4952,
0.5154,
0.5407,
0.5643,
0.5821,
0.6018,
0.6226,
0.6372,
0.6483,
0.6551,
0.6587,
0.662,
0.6653,
0.668,
0.6709,
0.6742
],
"20": [
0.4366,
0.4708,
0.4921,
0.5112,
0.5341,
0.5575,
0.576,
0.5941,
0.6135,
0.6304,
0.6423,
0.6521,
0.6564,
0.6596,
0.6627,
0.6658,
0.6684,
0.6712,
0.6744
],
"12We ": [
0.4622,
0.4983,
0.5344,
0.5705,
0.6005,
0.6303,
0.649,
0.6576,
0.6627,
0.6675,
0.6722
]
},
"attribute": "NDVI",
"min": 0.2076,
"avg": 0.5944896234082888,
"type": "Number",
"max": 0.6885,
"sum": "13165.56719999999999590190036258263717172608"
}
]
}
],
"layerCount": 1
},
"tiles": [
"https://gcp-us-east1.api.carto.com/v3/maps/omegacrop-production/tileset/{z}/{x}/{y}?name={NAME}&partition=12_15_16142_16145_10208_10211_3999_1&formatTiles=mvt&cache=1653383237150&access_token={ACCES_TOKEN}"
],
"minzoom": 12,
"attribution": "",
"bounds": [
-2.6481308960412906,
55.9604080548856,
-2.62664091461468,
55.97227003506276
],
"vector_layers": [
{
"field": {
"fieldName": "String",
"NDVI": "Number"
},
"id": "default",
"minzoom": 12,
"geometry_type": "Polygon",
"maxzoom": 15
}
]
}
Which I'm not being able to display on Mapbox Map using either Raster or Vector Layers. Also when trying to do a GET request from the tiles url the tilejson return I'm receiving the following error:
{
"error": "invalid zoom value, must be an integer number greater than or equal to 0",
"status": 400,
"message": "invalid zoom value, must be an integer number greater than or equal to 0",
"z": null,
"x": null,
"y": null
}
If anyone have experienced this or may know what I may be doing wrong it would be highly appreciated.