Web Services of encoding/decoding 2D barcode?

[Sheldon]

Is there any such open and free web services of encoding/decoding 2D
barcodes? That is you send it a message programmatically, it returns a
barcode image. And if you send it a barcode image, it sends the
decoded message back.

[Sean Owen]

Yes, for encoding, your best bet is the Google Chart API:
http://code.google.com/apis/chart/docs/gallery/qr_codes.html

You can construct a URL which returns the barcode as PNG.

For decoding, look at http://zxing.org/w/decode.jspx . You can just do
the same POST that the form on this page is doing to send it an image
and it will reply with the content.

[Lachezar Dobrev]

(repost, sent it off-list by mistake)

The Google Chart API has it's own limitations.
Frankly every time I try to figure the limitations out I hit a snag
at actually understanding what is written. There seem to be limits on
the amount of queries for generating the «charts».

For Android it is pointless to call a web-service since the QR Code
encoding is built-in the ZXing Barcode Scanner application, and is
available for integration from third party applications using Intent
calls, or using the android-integration sub-project. I would frankly
remove any application that expects me to believe it needs Internet
Access to render QR Codes.

2012/12/11 avaiya kirti <avaiya...@gmail.com>:
> Hello sean,
> How can I use this chart API to generate qrcode for android application?

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