https://github.com/whosonfirst/go-whosonfirst-iterate-sqlite

Go package implementing the `whosonfirst/go-whosonfirst-iterate/v2` interfaces for iterating (Who's On First) documents stored in a SQLite database.
https://github.com/whosonfirst/go-whosonfirst-iterate-sqlite

golang sqlite whosonfirst whosonfirst-iterate

Last synced: 1 day ago
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Go package implementing the `whosonfirst/go-whosonfirst-iterate/v2` interfaces for iterating (Who's On First) documents stored in a SQLite database.

• Host: GitHub
• URL: https://github.com/whosonfirst/go-whosonfirst-iterate-sqlite
• Owner: whosonfirst
• License: bsd-3-clause
• Created: 2021-02-18T19:24:00.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2022-07-07T17:49:54.000Z (over 2 years ago)
• Last Synced: 2024-06-21T12:49:40.313Z (5 months ago)
• Topics: golang, sqlite, whosonfirst, whosonfirst-iterate
• Language: Go
• Homepage:
• Size: 26.2 MB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# go-whosonfirst-iterate-sqlite

Go package implementing go-whosonfirst-iterate/emitter functionality for (Who's On First specific) SQLite databases.

## Documentation

[![Go Reference](https://pkg.go.dev/badge/github.com/whosonfirst/go-whosonfirst-iterate-sqlite.svg)](https://pkg.go.dev/github.com/whosonfirst/go-whosonfirst-iterate-sqlite)

## Example

```

import (

       "context"

       "fmt"

       "github.com/whosonfirst/go-whosonfirst-iterate/v2/iterator"

       _ "github.com/whosonfirst/go-whosonfirst-iterate-sqlite/v2"	

       "io"

)

func main() {

	ctx := context.Background()

     

	iter_cb := func(ctx context.Context, path string, r io.ReadSeeker, args ...interface{}) error {

		fmt.Println(path)

		return nil

	}

	iter, _ := iterator.NewIterator(ctx, "sqlite://", iter_cb)

	iter.IterateURIs(ctx, "whosonfirst.db")

}	

```

## Tools

```

$> make cli

go build -mod vendor -o bin/count cmd/count/main.go

go build -mod vendor -o bin/emit cmd/emit/main.go

```

### count

```

$> ./bin/count /usr/local/data/sfomuseum-data-flights-2020-latest.db

2021/02/18 10:57:42 time to index paths (1) 1m46.893753865s

2021/02/18 10:57:42 Counted 752289 records (saw 752289 records)

```

### emit

$> ./bin/emit \

	-geojson \

	-emitter-uri 'sqlite://?include=properties.icao:airline=ANZ' \

	/usr/local/data/sfomuseum-data-flights-2020-latest.db

| jq '.features[]["properties"]["wof:name"]'

```

"NZ9198 (SFO-IAH)"

"NZ9147 (BFL-SFO)"

"NZ9130 (EWR-SFO)"

"NZ9225 (SFO-LAS)"

"NZ9525 (SFO-MFR)"

"NZ9340 (SFO-PDX)"

"NZ9716 (SNA-SFO)"

"NZ9124 (EWR-SFO)"

"NZ9131 (MIA-SFO)"

"NZ9282 (LAX-SFO)"

"NZ9353 (PDX-SFO)"

"NZ9238 (LAS-SFO)

... and so on

```

## See also

* https://github.com/whosonfirst/go-whosonfirst-iterate

* https://github.com/aaronland/go-sqlite