Find
- URL:https://<mapservice-url>/find
- Required Capability:Data
- Version Introduced:9.3
Description
The find operation is performed on a map service resource. The result of this operation is a find results resource. Each result includes its value, feature ID, field name, layer ID, layer name, geometry, geometry type, and attributes in the form of name-value pairs.
The find operation is not supported on stand-alone tables.
You can provide arguments to the find operation as query parameters as defined in the parameters table below.
New at 10.8
Supports the following new parameters. These parameters are only supported by map services published from ArcGIS Pro.
- clippingâMask out layers outside of a clip polygon.
- spatialFilterâDraw or query only features that meet the spatial filter criteria.
Check for supportsClipping and supportsSpatialFilter on a map service's root resources before using it.
New at 10.6.1
Supports the following new parameter:
- historicMomentâQuery from a given moment in an archive-enabled layer.
New at 10.5
Enhanced with the following Boolean flags to support returning unformatted values and field names:
- returnUnformattedValues
- returnFieldName
Supports the following new parameters:
- datumTransformationsâProvide a desired datum transformation to be applied while features are projected.
- mapRangeValuesâSet values to ranges applicable to all layers with the same ranges in the map service.
- layerRangeValuesâSet range values for specific layers.
- layerParameterValuesâSet values to parameterized filters to specific layers.
Simple syntax is not supported as an expected value for the layerDefs parameter starting at 10.5.
New at 10.1
- Support for dynamic layers was added with the dynamicLayers parameter. If dynamicLayers is used in a find operation request, the layerDefs and layers (find) operation parameters are ignored. Instead, use definitionExpression, available within dynamicLayers, to specify these values in the find operation. Only those layers that are defined in dynamicLayers are used in the find operation.
- The gdbVersion parameter was introduced. Use this parameter to switch the geodatabase version of the map layer's data source.
- The geometryPrecision parameter was introduced. This option can be used to specify the number of decimal places in the response geometries returned by the identify operation.
- JSON response contains an optional property, exceededTransferLimit. This property will be true only if the number of records exceeds the maximum number configured by the server administrator.
New at 10.0
Support for generalizing geometries returned by the find operation was added.
Request parameters
Parameter |
Details |
---|---|
searchText
(Required) |
The search string. This is the text that is searched across the layers and fields the user specifies. Example
|
contains |
If false, the operation searches for an exact match of the searchText string. An exact match is case sensitive. Otherwise, it searches for a value that contains the searchText provided. This search is not case sensitive. The default is true. Values: true | false |
searchFields |
The names of the fields to search. The fields are specified as a comma-separated list of field names. If this parameter is not specified, all fields are searched. Syntax
Example
|
sr |
The well-known ID of the spatial reference of the output geometries. If sr is not specified, the output geometries are returned in the spatial reference of the map. |
layerDefs |
Allows you to filter the features of individual layers in the exported map by specifying definition expressions for those layers. A definition expression for a layer that is published with the service will be always honored. Note: As of 10.5, simple syntax is no longer supported. Syntax
Example
|
layers
(Required) |
The layers on which to perform the find operation. The layers are specified as a comma-separated list of layer IDs. Syntax
Example
|
returnGeometry |
If true, the resultset includes the geometries associated with each result. The default is true. Values: true | false |
maxAllowableOffset |
This option can be used to specify the maximum allowable offset to be used for generalizing geometries returned by the find operation. The maxAllowableOffset is in the units of the sr. If sr is not specified, the maxAllowableOffset is assumed to be in the unit of the spatial reference of the map. Example
|
geometryPrecision |
This option can be used to specify the number of decimal places in the response geometries returned by the find operation. This applies to x- and y-values only (not m- or z-values). Example
|
dynamicLayers |
Use the dynamicLayers property either to modify the data source of existing layers in the current map service or to add new layers. The new layer should have its source pointing to one of the registered workspaces that was defined at the time the map service was created. When defining a dynamic layer, the source is required. Syntax
Example
|
returnZ |
If true, z-values will be included in the results if the features have z-values. Otherwise, z-values are not returned. The default is true. Note: This parameter only applies if returnGeometry=true. |
returnM |
If true, m-values will be included in the results if the features have m-values. Otherwise, m-values are not returned. The default is false. Note: This parameter only applies if returnGeometry=true. |
gdbVersion |
Switch map layers to point to an alternate geodatabase version. Syntax
Example
|
returnUnformattedValues | This option was added at 10.5. If true, the values in the result will not be formatted; in other words, numbers will be returned as is and dates will be returned as epoch values, and subtype and domain values will be returned as numeric values instead of descriptions. The default value is false, making numbers and dates formatted based on the server's setting. Values: true | false |
returnFieldName | This option was added at 10.5. If true, field names will be returned instead of field aliases. The default value is false. For layers with joins, fully qualified names will be returned. Values: true | false |
datumTransformations | This option was added at 10.5. Use this parameter to apply one or more datum transformations to the map when sr is different than the map service's spatial reference. It is an array of transformation elements. Transformations specified here are used to project features from layers within a map service to sr. Note: While specifying transformation, you need to think about which datum transformation is best applicable to project a layer or layers (not the map service) to the sr. The sourceSpatialReference property in a layer resource reports which spatial reference features are stored in the source dataset. For a list of valid datum transformation ID values and well-known text strings, see Using spatial references. For more information on datum transformation, see the transformation parameter in the Project operation. Syntax
Examples
|
mapRangeValues | This option was added at 10.5. It allows you to filter features in the exported map from all layers that are within the specified range instant or extent. Note: Check rangeInfos at the layer resources for the available ranges. Null, representing infinity, is allowed in value-ranges. For example, [null, 1500] means all features with values <=1500 and [1000, null] means all features with values >=1000. Syntax
Example
|
layerRangeValues | This option was added at 10.5. It allows you to filter features for each individual layer that are within the specified range instant or extent. Note: Check rangeInfos at the layer resources for the available ranges. Null, representing infinity, is allowed in value-ranges. For example, [null, 1500] means all features with values <=1500 and [1000, null] means all features with values >=1000. Syntax
Example
|
layerParameterValues | This option was added at 10.5. It allows you to filter the features of individual layers by specifying a value or values to an array of preauthored parameterized filters for those layers. When a value is not specified for any parameter in a request, the default value, which is assigned during authoring time, gets used instead. When a parameterInfo allows multiple values, you must pass them in an array. Note: Check parameterInfos at the layer resources for the available parameterized filters, their default values, and expected data type. Syntax
Example
|
historicMoment | This option was added at 10.6.1. This is the historic moment to find. This parameter applies only if the layer is archiving enabled and the supportsQueryWithHistoricMoment property is set to true. This property is provided in the layer resource. If historicMoment is not specified, the search query will apply to the current features. Syntax
Example
|
clipping | This parameter was added at 10.8. It allows you to mask out layers outside of the clip polygon in the exported map. Clipping can mask out any layer type, for example, feature layers, raster layers, and TIN layers. Optionally, you can use excludedLayers to exclude layers from being clipped. Syntax
Example
|
spatialFilter | This parameter was added at 10.8. It allows you to filter out features from all features layers based on the input spatial filter. It is similar to layerDefs, but instead of using an attribute filter, map service uses a spatial filter to determine which features can be queried. Note: Spatial filters only works against feature layers. When both clipping and spatialFilter are provided, clipping takes precedence and spatialFilter is ignored. Syntax
Example
|
f |
The response format. The default response format is html. Values: html | json | pjson |
Example usage
Example 1: The Find operation that includes search text and a layer. The response is in HTML format:
https://machine.domain.com/arcgis/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/find?searchText=island&contains=true&searchFields=&sr=&layers=0,2&returnGeometry=true
Example 2: The Find operation with dynamicLayer:
https://machine.domain.com/arcgis/rest/services/Census/MapServer/find?searchText=Calif&contains=true&searchFields=&sr=&layers=&layerDefs=&returnGeometry=false&maxAllowableOffset=&geometryPrecision=&dynamicLayers=[{"id":501,"source":{"type":"mapLayer","mapLayerId":3}}]&returnZ=false&returnM=false&gdbVersion=&f=html
JSON Response syntax
{
"results": [
{
"layerId": <layerId1>,
"layerName": "<layerName1>",
"displayFieldName": "<displayFieldName1>",
"foundFieldName": "<foundFieldName1>",
"value": "<value1>",
"attributes": {
"<fieldName11>": <fieldValue11>,
"<fieldName12>": <fieldValue12>
},
"geometryType": "<geometryType1>",
"hasZ": <true|false>, //added in 10.1
"hasM": <true|false>, //added in 10.1
"geometry": {<geometry1>}
},
{
"layerId": <layerId2>,
"layerName": "<layerName2>",
"displayFieldName": "<displayFieldName2>",
"foundFieldName": "<foundFieldName2>",
"value": "<value2>",
"attributes": {
"<fieldName21>": <fieldValue21>,
"<fieldName22>": <fieldValue22>
},
"geometryType": "<geometryType2>",
"hasZ": <true|false>, //added in 10.1
"hasM": <true|false>, //added in 10.1
"geometry": {<geometry2>}
}
]
}
JSON Response example
{
"results": [
{
"layerId": 3,
"layerName": "Cities",
"displayFieldName": "City Name",
"foundFieldName": "City Name",
"value": "Joe City",
"attributes": {
"City Name": "Joe City",
"CLASS": "city",
"ST": "CA"
},
"geometryType": "esriGeometryPoint",
"geometry": {
"x": -118.375,
"y": 34.086,
"spatialReference": {
"wkid": 4326
}
}
},
{
"layerId": 59,
"layerName": "Parcel",
"displayFieldName": "NAME",
"foundFieldName": "NAME",
"value": "Joe's Parcel",
"attributes": {
"NAME": "Parcel 649",
"SUB_REGION": "Pacific",
"STATE_ABBR": "CA"
},
"geometryType": "esriGeometryPolygon",
"geometry": {
"spatialReference": {
"wkid": 4326
},
"rings": [
[
[-118.35,32.81],
[-118.42.806],
[-118.511,32.892],
[-118.35,32.81]
]
]
}
}
]
}