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Update index.js #775

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Update index.js #775

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957a768
Update index.js
rajababubula Jun 8, 2022
e2f87a2
Update index.js
rajababubula Jun 8, 2022
0a1f2f9
Update index.js
rajababubula Jun 8, 2022
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33 changes: 26 additions & 7 deletions web-nfc/index.js
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Original file line number Diff line number Diff line change
@@ -1,20 +1,39 @@
scanButton.addEventListener("click", async () => {
scanButton.addEventListener("click", async () => {
log("User clicked scan button");

try {
const ndef = new NDEFReader();
await ndef.scan();
log("> Scan started");

ndef.addEventListener("readingerror", () => {
log("Argh! Cannot read data from the NFC tag. Try another one?");
});

ndef.addEventListener("reading", ({ message, serialNumber }) => {
log(`> Serial Number: ${serialNumber}`);
log(`> Records: (${message.records.length})`);
});
} catch (error) {
log(`> Records: (${message.records.length})`);
for (const record of message.records) {
log(`\nRecord id: ${record.id}`);
log(`Record type: ${record.recordType}`);
log(`MIME type: ${record.mediaType}`);
switch (record.recordType) {
case "text":
{
const textDecoder = new TextDecoder(record.encoding);
log(`Text: ${textDecoder.decode(record.data)} (${record.lang})`);
}
break;
case "url":
{
const textDecoder = new TextDecoder();
log(`URL: ${textDecoder.decode(record.data)}`);
}
break;
default:
// TODO: Handle other records with record data.
}
}
}
});
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Shall we have a spacer to make it clear there are multiple records?

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This is a good idea. I want to further parse other types of tags as well. is this fine?

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I'm not sure I'd parse more types in a sample like this.

} catch (error) {
log("Argh! " + error);
}
});
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