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Added example to demonstrate use georadius. (#104)
* Added example to use geo filter * [fix] Fixed redisearch_geo example bin. Added godoc example for Search with georadius Co-authored-by: filipe oliveira <[email protected]>
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@@ -8,3 +8,7 @@ | |
| !/tests/*.bz2 | ||
| !Makefile | ||
| !**/*.yml | ||
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| # IDEs | ||
| .idea | ||
| .vscode | ||
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| package main | ||
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| import ( | ||
| "fmt" | ||
| "github.com/RediSearch/redisearch-go/redisearch" | ||
| "log" | ||
| ) | ||
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| /** | ||
| * This example maps to https://redis.io/commands/geoadd#examples of Georadius search | ||
| * This demo should be updated in RediSearch.io if changed | ||
| * Update at: https://github.com/RediSearch/RediSearch/blob/master/docs/go_client.md | ||
| */ | ||
| func main() { | ||
| // Create a client. By default a client is schemaless | ||
| // unless a schema is provided when creating the index | ||
| c := redisearch.NewClient("localhost:6379", "cityIndex") | ||
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| // Create a schema | ||
| sc := redisearch.NewSchema(redisearch.DefaultOptions). | ||
| AddField(redisearch.NewTextField("city")). | ||
| AddField(redisearch.NewGeoField("location")) | ||
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| // Drop an existing index. If the index does not exist an error is returned | ||
| c.Drop() | ||
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| // Create the index with the given schema | ||
| if err := c.CreateIndex(sc); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
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| // Create the city docs | ||
| // Note While Specifying location you should specify in following order -> longitude,latitude | ||
| // Same look and feel as GEOADD https://redis.io/commands/geoadd | ||
| // This example maps to https://redis.io/commands/geoadd#examples | ||
| docPalermo := redisearch.NewDocument("doc:Palermo", 1.0) | ||
| docPalermo.Set("name", "Palermo"). | ||
| Set("location", "13.361389,38.115556") | ||
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| docCatania := redisearch.NewDocument("doc:Catania", 1.0) | ||
| docCatania.Set("name", "Catania"). | ||
| Set("location", "15.087269,37.502669") | ||
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| // Index the documents. The API accepts multiple documents at a time | ||
| if err := c.IndexOptions(redisearch.DefaultIndexingOptions, docPalermo, docCatania); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
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| // Searching for 100KM radius should only output Catania | ||
| docs, _, _ := c.Search(redisearch.NewQuery("*").AddFilter( | ||
| redisearch.Filter{ | ||
| Field: "location", | ||
| Options: redisearch.GeoFilterOptions{ | ||
| Lon: 15, | ||
| Lat: 37, | ||
| Radius: 100, | ||
| Unit: redisearch.KILOMETERS, | ||
| }, | ||
| }, | ||
| ).Limit(0, 2)) | ||
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| fmt.Println("100KM Radius search from longitude 15 latitude 37") | ||
| fmt.Println(docs[0]) | ||
| // Output: 100KM Radius search from longitude 15 latitude 37 | ||
| // Output: {doc:Catania 1 [] map[location:15.087269,37.502669 name:Catania]} | ||
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| // Searching for 200KM radius should output Catania and Palermo | ||
| docs, _, _ = c.Search(redisearch.NewQuery("*").AddFilter( | ||
| redisearch.Filter{ | ||
| Field: "location", | ||
| Options: redisearch.GeoFilterOptions{ | ||
| Lon: 15, | ||
| Lat: 37, | ||
| Radius: 200, | ||
| Unit: redisearch.KILOMETERS, | ||
| }, | ||
| }, | ||
| ).Limit(0, 2).SetSortBy("location", true)) | ||
| fmt.Println("200KM Radius search from longitude 15 latitude 37") | ||
| fmt.Println(docs[0]) | ||
| fmt.Println(docs[1]) | ||
| // Output: 100KM Radius search from longitude 15 latitude 37 | ||
| // Output: {doc:Palermo 1 [] map[location:13.361389,38.115556 name:Palermo]} | ||
| // Output: {doc:Catania 1 [] map[location:15.087269,37.502669 name:Catania]} | ||
| } |
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