ESP8266 Community Forum

- Thu Nov 05, 2015 2:35 pm #33171 Moz,

This is good work buddy. How easy would it be to scan through the Json file and search for a specific entry?

I.E lets say we have a json formatted file with card numbers for access control stored in it, along with some other parameters, would it be a quick process for the esp to search through this file and check to see if a given card number exists? What sort of time response could we expect?

Cheers buddy

Dans

- Sat Nov 07, 2015 4:11 pm #33380 Heya Dans,

JSON is a simple data container, very linear, so any scan should be very easy. And yes, on big amounts of data, search could take awhile.
If you take data to ESP I think the bigger problem is speed of reading from the card than computing JSON data.

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Mozz

- Sat Nov 07, 2015 6:17 pm #33393 Hey,

Nice to here from you mate

Yep been tinkering with it, have some stuff uploaded to a server will be pulling down files and loading to SPIFFS, putting together a solution for a client, card reading I have working really quick the Json stuff is brilliant excellent library.

Your example of the good old wifi scan works superb well done mate great work.

Cheers buddy

Dans