Set up a beautiful geoportal using config. No code.

Features

1. All features from mapbox \ maplibre \ deck.gl
2. JSON configuration (can be stored on the backend)
3. Custom geojson & vector tiles filters
4. Custom geojson & vector tiles visualisation
5. License, copyright and metadata management
6. Low level api via redux actions
7. Custom files loader
8. Custom projections
9. Built-in responsive version
10. Pmtiles support
11. Basemap setup
12. Themes
13. Localisation
14. Terrain
15. Countours
16. Typescript-safe

Tldr;

Main details:

1. Library is a maplibre map wrapper.
2. You can use any features from mapbox \ maplibre \ deck.gl
3. Library has 5 main entities: sources, layers, visualization, filter, card
4. Source: data source (geojson, json, vector tile), technically is a wrapper for mabplibre Source with extra params
5. Visualization: wrapper for the mabplibre Layer with extra params.
6. Filter: configuration for custom ui that helps to filter source data
7. Layer: group of visualizations and filters
8. Card: popup for selected data

Installation

npm i sloy-map
npm i react-redux @reduxjs/toolkit

import { Provider } from "react-redux";
import { configureStore } from "@reduxjs/toolkit";
import { SloyMap, sloyReducer } from "sloy-map";
import 'sloy-map/style.css';

const store = configureStore({
  reducer: {
    sloy: sloyReducer,
  },
});

export function App() {
  return (
    <Provider store={store}>
      <SloyMap
        mapState={{
          initialViewState: {
            zoom: 14.5,
            longitude: 44.51,
            latitude: 40.18,
          },
          mapStyle: "https://sloy.io/armenia/style.json",
        }}
        sources={[
          {
            id: "sourceId",
            path: "/file.geojson",
            type: "geojson",
            // also you can use { type: "json" }
            // with latProperty, lngProperty, coordsProperty, isCoordsReverse for custom lat\lng keys

            // you can use custom projection here
            // supports proj4 format
            projection: "EPSG:28408",
            properties: [
              {
                id: "VALUE",
                title: "kcal/cm²",
                // you can describe data colors here, this colors can be used in the visualisations and filters
                values: {
                  40: { color: "#fddede" },
                  45: { color: "#feb7b9" },
                  50: { color: "#fd9793" },
                },
              },
              {
                id: "UNIT",
                title: "Units",
              },
            ],
            // you can describe popup content using the keys from the data
            card: {
              title: "name",
              blocks: [{ type: "value", id: "VALUE" }],
            },
            copyright: [],
            mapSourceProps: {
              /* any mapbox\maplibre source props */
            },
          },
        ]}
        layers={[
          {
            id: "layerId",
            title: "Geojson example",
            description: "Description",
            filters: [],
            visualizations: [
              {
                id: "visualizationId",
                source: "sourceId",
                openable: true,
                property: "VALUE",
                type: "map",
                // any mapbox\maplibre props:
                mapLayerProps: {
                  type: "fill",
                  paint: {
                    "fill-opacity": 0.6,
                  },
                },
              },
            ],
          },
        ]}
        mapProps={
          {
            /* you can use mapbox\maplibre map props here
         for example mapboxAccessToken: xxxx */
          }
        }
      />
    </Provider>
  );
}

You can find more examples in the src/examples/ folder

API

Map props

export interface SloyMapProps extends MapContextProps {
  mapState: IMapState;
  mapProps?: IMapProps;
  sources: InputSloySource[];
  layers: InputSloyLayer[];
  theme?: typeof styled-components ThemeProvider;
  copyrights?: ICopyright[];
  children?: ReactNode;
  locale?: string;
  translations?: Record<string, Record<string, string>>;
  overrideCard?: OverrideCardFn;
  overrideLayers?: OverrideLayersFn;
  terrainSource?: string;
  layout?: {
    hasBaseMap?: boolean;
    hasPmtiles?: boolean;
    buildingLayerName?: string;
    loaderImageSrc?: string;
    canSelectMultipleLayers?: boolean;
  };
}

Source

interface ISource {
  id: string;
  mapSourceProps?: typeof maplibre.Source;
  // path to file
  path?: string;
  type: "vector-tiles" | "geojson" | "json";
  properties?: Record<string, SourceProperty>;
  card?: ICard["id"];
  isCoordsReverse?: boolean;
  coordsProperty?: string;
  latProperty?: string;
  lngProperty?: string;
  projection?: string;
  dataByIdPath?: string;
  copyright: Copyright["id"][];
}

Layer

interface ILayer {
  id: string;
  title: string;
  description?: string;
  updatedAt?: string;
  link?: {
    label?: string;
    href?: string;
  };
  license?: string;
  filters: IFilter["id"][];
  visualizations: IVisualization["id"][];
  initialViewState?: {
    center?: number[];
  };
}

Visualization

interface IVisualization {
  id: string;
  type: "map" | "building-ids" | "marker-image" | "building-range" | "native";
  source: ISource["id"];
  property?: string;
  previewPath?: string;
  rootSrc?: string;
  ids?: string[];
  openable?: boolean;
  mapLayerProps?: typeof maplibre.Layer;
}

Filter

interface IFilter {
  id: string;
  source: ISource["id"];
  type: "boolean" | "range" | "string" | "string[]";
  filterVisualizations: IVisualization["id"][];
  sortType?: "config" | "count" | "alphabetical";
  totalHeader?: "count";
  title?: string;
  description?: string;
  property?: string;
  color?: string;
  subTitle?: string;
  totalType?: "percent";
  postfix?: string;
}

Card

interface ICard {
  id: string;
  cover?: string;
  title?: string | string[];
  description?: string | string[];
  additionalInfo?: string[];
  blocks: ICardBlock[];
  rootSrc?: string;
}

interface ICardBlock {
  type: string;
  id?: string;
  deps?: string;
  content?: string;
  dateTimeFormat?: Intl.DateTimeFormatOptions;
  title?: string | null;
  value?: ReactNode;
}

Copyright

interface ICopyright {
  id: string;
  shortName: string;
  fullName?: string;
  url: string;
  requiredAttribution?: boolean;
}

Contribution

pnpm i
pnpm start