Mercurial > code > home > repos > front-door-display
annotate src/parseRdf.ts @ 21:a90cb6927c7d default tip
fix countdown queries. Display "now" instead of "In -0.4 hours"
| author | drewp@bigasterisk.com |
|---|---|
| date | Sat, 07 Sep 2024 17:47:36 -0700 |
| parents | 20d1fa4250c0 |
| children |
| rev | line source |
|---|---|
| 15 | 1 import { Parser, Quad_Predicate, Quad_Subject, Store, Term } from "n3"; |
| 2 export const EV = "http://bigasterisk.com/event#"; | |
| 3 export const RDF = "http://www.w3.org/1999/02/22-rdf-syntax-ns#"; | |
| 4 | |
| 5 export function getLiteral(store: Store, graph: Term, subj: Quad_Subject, pred: Quad_Predicate, missing: string | null): string { | |
| 6 let out = null; | |
| 7 store.getObjects(subj, pred, graph).forEach((attr) => { | |
| 8 out = attr.value; | |
| 9 }); | |
|
21
a90cb6927c7d
fix countdown queries. Display "now" instead of "In -0.4 hours"
drewp@bigasterisk.com
parents:
15
diff
changeset
|
10 if (out == null) { |
| 15 | 11 if (missing === null) { |
| 12 throw new Error(); | |
| 13 } | |
| 14 return missing; | |
| 15 } | |
| 16 return out; | |
| 17 } | |
| 18 | |
| 19 export async function fetchGraph(url: string) { | |
| 20 return await fetch(url, { | |
| 21 method: "GET", | |
| 22 headers: { | |
| 23 Accept: "application/json", | |
| 24 "X-Pomerium-Authorization": document.cookie.substring(document.cookie.indexOf("=") + 1), | |
| 25 }, | |
| 26 }); | |
| 27 } | |
| 28 | |
| 29 export async function parseGraph(r: Response, done: (store: Store) => void) { | |
| 30 const store = new Store(); | |
| 31 const n3txt = await r.text(); | |
| 32 const parser = new Parser({ format: "application/trig" }); | |
| 33 parser.parse(n3txt, (error, quad, prefixes) => { | |
| 34 if (quad) { | |
| 35 store.addQuad(quad); | |
| 36 } else { | |
| 37 done(store); | |
| 38 } | |
| 39 }); | |
| 40 } |