The avatar for @asg017
Alex Garcia
Software engineer, available for freelance work! • he/him/his
Published
SQLite Blog
Edited
Aug 10, 2022
25 stars
3
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import { DatasetteClient } from "@ambassadors/datasette-client"
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db = new DatasetteClient("https://sqlite-extension-examples.fly.dev/data")
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db
select http_version(), http_headers('X-Name', 'Alex');
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db
select * from snapshots;
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Inputs.table(
db.sql`select
request_method,
request_url,
json_extract(timings, '$.start') as started,
response_status,
length(response_body)
from snapshots`
)
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JSON.parse((await db.sql`select response_body from snapshots`)[0].response_body)
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db
select
-- This version of Datasette is too old for the hip new "->>" syntax :(
json_extract(value, '$.StopId') as stop_id,
json_extract(value, '$.Description') as description,
json_extract(value, '$.Latitude') as latitude,
json_extract(value, '$.Longitude') as longitude
from snapshots
join json_each(snapshots.response_body, '$.Stops')
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import {L} from "@observablehq/hello-leaflet"
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viewof map = {
const container = html`<div style="height:600px;">`;
yield container;
const icon = L.icon({
iconUrl:
"https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.8.0/images/marker-icon.png"
});
const map = L.map(container).setView([33.99, -118.07], 12);
container.value = map;
L.tileLayer("https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png", {
attribution:
"&copy; <a href=https://www.openstreetmap.org/copyright>OpenStreetMap</a> contributors"
}).addTo(map);

for (const stop of stops) {
L.marker([stop.latitude, stop.longitude], {
icon,
title: stop.description
}).addTo(map);
}
yield container;
}
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db
select response_body
-- hint: json_each will be very useful here!
from snapshots;
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db
select * from cites;
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db
select * from christmas_suntimes;
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db
select
cities.name,
cities.state,
(
strftime('%s', sunset) -
strftime('%s', sunrise)
) as daylight_seconds
from christmas_suntimes
left join cites as cities on cities.rowid = christmas_suntimes.city
order by 3 desc
limit 10;
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db
select
cities.name,
cities.state,
(strftime('%s', sunset) - strftime('%s', sunrise)) as daylight_seconds
from christmas_suntimes
left join cites as cities on cities.rowid = christmas_suntimes.city
order by 3 asc
limit 10;
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