ReactiveOpenStreetMap

ReactiveOpenStreetMap creates a data-driven map UI component using React-Leaflet. It is the key component for building map based experiences.

Example uses:

• showing a map of user checkins by city and topics for powering discovery based experiences.
• displaying restaurants filtered by a nearby distance query on a map.

Usage

Basic Usage

<ReactiveOpenStreetMap componentId="MapUI" dataField="location" title="Venue Location Map" />

Usage With All Props

<ReactiveOpenStreetMap
	componentId="MapUI"
	dataField="location"
	title="Venue Location Map"
	size={10}
	defaultZoom={13}
	onPopoverClick={this.onPopoverClick}
	// 'react' defines when and how the map component should update
	react={{
		and: 'CitySensor',
	}}
	// map events
	renderItem={this.renderItem}
	// less useful props
	autoCenter={true}
/>

Props

componentId

unique identifier of the component, can be referenced in other components' react prop.

dataField

DB data field to be connected to the component's UI view, usually of a geopoint (i.e. location) data type and used for rendering the markers on the map.

size

number of results to show in the map view, can be a number in the range [1, 1000]. Defaults to 10.

defaultZoom

preset map's zoom level, accepts integer values between [0, 20]. 0 is the minimum zoom level, where you can see the entire globe. 20 is the maximum zoom level. Defaults to 13.

defaultCenter

preset map's center position by specifying an object with valid lat and lng values. This prop, when set, will cause the component to run a geo-distance query with a distance of 10mi (Refer: defaultRadius and unit prop to configure the distance).

center

set map's center position by specifying an object with valid lat and lng values. This prop, when set, will cause the component to run a geo-distance query with a distance of 10mi (Refer: defaultRadius and unit prop to configure the distance).

defaultRadius

used as distance value for the geo-distance query when defaultCenter or center is set. It accepts all positive integers.

unit

unit for distance measurement, uses mi (for miles) by default. Distance units can be specified from the following:

showMarkers

whether to show the markers on the map, defaults to true. Sometimes, it doesn't make sense to display markers (when building a heatmap or weather map or a directions navigation map)

showSearchAsMove

whether to show the Search As I Move checkbox in the UI. Defaults to true.

searchAsMove

whether to set the Search As I Move checkbox. Defaults to false.

defaultPin

URL of the default marker pin image to be shown. It comes with a default image. Should only be set if you wish to use a custom marker.

onPopoverClick

a function that takes one argument for getting a marker's data and returns an HTML markup to be displayed in the popover box.

autoClosePopover

automatically closes the exisiting open popovers when onPopoverClick gets fired. Defaults to false.

react

specify dependent components to reactively update GeoDistanceDropdown's options. Read more about it here.

• key String one of and, or, not defines the combining clause.
  • and clause implies that the results will be filtered by matches from all of the associated component states.
  • or clause implies that the results will be filtered by matches from at least one of the associated component states.
  • not clause implies that the results will be filtered by an inverse match of the associated component states.
• value String or Array or Object
  • String is used for specifying a single component by its componentId.
  • Array is used for specifying multiple components by their componentId.
  • Object is used for nesting other key clauses.

autoCenter

whether to auto center the map based on the geometric center of all the location markers. Defaults to false.

tileServer

Used to provide different style to OpenStreet Map. It accepts tiles url that is used for providing layering to map. For more tile servers you can check https://wiki.openstreetmap.org/wiki/Tile_servers. Default titleServer url is https://{s}.tile.osm.org/{z}/{x}/{y}.png.

Note

You will have to link css file for appropriate tileServer in your html file / component. For default tileServer you can link following css

Copy

<link href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.3.4/leaflet.css" rel="stylesheet" />

className

CSS class to be injected on the component container.

style

CSS style object to be applied to the ReactiveOpenStreetMap component.

renderItem

event fired when one or more markers are indexed, updated or removed from the map. It takes an object with the following formats (label, icon, custom):

// To render the given text in the marker
renderItem={result => ({
    label: result.title,
})}

// To render a marker image
renderItem={result => ({
    icon: 'https://i.imgur.com/NHR2tYL.png',
})}

// To render a custom markup (as label) in the marker position
renderItem={result => ({
    custom: (<div>{result.mag}</div>),
})}

renderError

can be used to render an error message in case of any error.

renderError={(error) => (
        <div>
            Something went wrong!<br/>Error details<br/>{error}
        </div>
    )
}

onError

gets triggered in case of an error and provides the error object, which can be used for debugging or giving feedback to the user if needed.

onData

gets triggered after data changes, which returns an object with these properties: data, promotedData, customData, rawData & resultStats.

render

an alternative callback function to renderItem, where user can define how to render the view based on all the data changes.
It accepts an object with these properties:

• loading: boolean indicates that the query is still in progress
• error: object An object containing the error info
• data: array An array of results obtained from combining promoted results along with the hits.
• aggregationData array An array of aggregations buckets. Each bucket would have a top_hits property if you're using Elasticsearch top hits aggregations in defaultQuery prop.
• promotedData: array An array of promoted results obtained from the applied query. Read More

Note:

data and promotedData results has a property called _click_id which can be used with triggerClickAnalytics to register the click analytics info.

• customData object

Custom data set in the query rule when appbase.io is used as backend. [Read More](/docs/search/rules/#custom-data)

• rawData object An object of raw response as-is from elasticsearch query.
• resultStats: object An object with the following properties which can be helpful to render custom stats:
  • numberOfResults: number Total number of results found
  • numberOfPages: number Total number of pages found based on current page size
  • currentPage: number Current page number for which data is being rendered
  • time: number Time taken to find total results (in ms)
  • displayedResults: number Number of results displayed in current view
  • hidden: number Total number of hidden results found
  • promoted: number Total number of promoted results found
• loadMore: function A callback function to be called to load the next page of results into the view. The callback function is only applicable in the case of infinite loading view (i.e. infiniteScroll prop set to true).
• triggerClickAnalytics: function A function which can be called to register a click analytics. Read More

render={(props) => { 
    const 
    {
        data, // parased hits
        loading,
        error,
        promotedData,
        customData,
        rawData,
        resultStats: {
        numberOfResults
        numberOfPages
        currentPage
        displayedResults
        time
        hidden
        promoted
        },
        loadMore // func to load more results
        triggerClickAnalytics // to trigger click analytics
        setPage,
        renderMap // allow users to render the map component at any place
        renderPagination // allows to render pagination component after displaying results
    } = props;
    return(
        <>
            {data.map(hit => <pre onClick={() => triggerClickAnalytics(hit._click_id)}>{JSON.stringify(hit)}</pre>)}
            {renderMap()}
        </pre>
    )
}

Or you can also use render function as children

    <ReactiveOpenStreetMap
     // ...other props
    >
        {
            ({
                loading,
                error,
                data,
                promotedData,
                rawData,
                resultStats,
                handleLoadMore,
                triggerClickAnalytics
            }) => (
                // return UI to be rendered
            )
        }
    </ReactiveOpenStreetMap>

Demo

Styles

ReactiveOpenStreetMap component supports innerClass prop with the following keys:

• title
• input
• list
• checkboxContainer
• checkbox
• label
• select
• icon
• count
• button
• pagination
• active

Examples

ReactiveOpenStreetMap with all the default props