Active7 years, 1 month ago
Good evening guys!
![Delphi Json Components Delphi Json Components](/uploads/1/3/3/2/133281801/216706819.png)
Nov 07, 2016 Excellent, use it extensively with our Delphi 7 codebase implementing JSON-RPC Servers and Clients. Interops well with the Java and.Net servers. Doesn't compile with Delphi 5. An introduction to JSON and using it within RadStudio Delphi or C++ Builder. [UPDATE] For a more complete example of building a RESTful service client with Delphi, and a RESTful JSON service using PHP, check out my 'Brutally Roll Your Own Backend' video series!
- Here is the second edition of the JSON Serializer library from the Delphi JSON serialization using Rtti article. Clever Components team www.clevercomponents.com.
- Delphi HTTP Post JSON. Ask Question. Up vote 9 down vote favorite. The idHTTP component is current set like this. Browse other questions tagged json delphi indy or ask your own question. 4 years, 1 month ago. 29,742 times. 9 months ago.
I'm currently trying to put together a
CloudFlare
client for the desktop. I've connected to their API and successfully retrieved the JSON results with a POST request (the results of which have been output into a TMemo
). I'm now wanting to parse these results into a TListBox
(see bolded area for example). The project is being designed in Firemonkey
.Download avast serial key 2038. Here's the formatted layout of the response with some example content;
I've tried several different components - SuperObject, Paweł Głowacki's JSON Designtime Parser, Tiny-JSON, LKJSON and the built in DBXJSON. However, i've no experience with JSON at all and i can't seem to find the most basic of examples that i can get started from. Many of them show sample data, but all the ones i've tried don't seem to work as i'd expect, most likely because i'm misunderstanding them. I'd assume the components work, so i need guidance on getting started.
There are hundreds, often thousands, of results in the
ips
'array' (i apologise if that's not correct, i'd assume it's known as an array but again, i'm completely new to JSON).What i'm really looking for is some sort of extremely basic sample code which i can build from (along with what component it uses for parsing and such).
For example, if i wanted to grab every
ip
from the JSON results, and put each one as a separate item into a TListBox
(using TListBox.add
method), how would i go about achieving this? Spotify 5.9.0.732 beta apk.Wondershare video downloader free download for mac. When i say
ip
, i mean the value (in the formatted layout above, this would be xxx.xxx.xxx.xxx
or yyy.yyy.yyy.yyy
).Additionally, if i wanted to find a 'record' (?) by it's IP from the JSON results and output the data to a delphi array - e.g.;
is that possible with JSON? (If this is seen as a separate question or too unrelated, please feel free to edit it out rather than close the question as a whole).
The closest i got to this had not only the ip's, but every other piece of data in a seperate
TListItem
(i.e. response
, ips
, ip
, classification
, xxx.xxx.xxx.xxx
and everything else had it's own item, along with several empty items in between each non-empty item).I'm sure it's extremely simple to do, but there's so much information on JSON that it's a little overwhelming for people new to the format.
Best Regards,Scott Pritchard.
Scott PritchardScott Pritchard95811 gold badge1515 silver badges2424 bronze badges
2 Answers
JSON is very simple and easy to figure out, once you understand the basic concepts. Have a look at http://json.org, where it explains things.
There are 4 basic concepts in JSON:
Delphi Parse Json Response
A value is any JSON element: a basic string or number, an array, or an object. (Anything but a pair.)
An array should be a familiar concept: an ordered list of values. The main difference from Delphi arrays is that JSON arrays don't have a defined type for the elements; they're simply 'an array of JSON values.'
A pair is a key-value pair. The key can be a string or a number, and the value can be any JSON value.
An object is an associative map of JSON pairs. You can think of it conceptually as a
TDictionary<string, JSON value>
.Preview and test your work in real time. Burn movies to Blu-ray Disc directly from the Vegas Pro 12 timeline for high-definition delivery. https://renewprop548.weebly.com/sony-vegas-pro-12-free-download-32-bit.html. Use DVD Architect Pro software (included with the Vegas Pro 12 collection) to author DVD or Blu-ray Disc projects with subtitles, multiple languages, and numerous playback menus.
Nilsson Schmilsson by Released November 1971 ( 1971-11) Recorded January–June 1971 ( 1971-06) Studio, London; RCA Studios, Hollywood, CA;, London, Length 35: 17 chronology (1971) 1971 Nilsson Schmilsson (1971) (1972) 1972 Professional ratings Review scores Source Rating A 8/10 4/5 6/10 9.4/10 Nilsson Schmilsson is the seventh album by American singer, released by in November 1971. Among these was the number 1 hit '', written by and of the group. It was Nilsson's most commercially successful work, producing three of his best-known songs. A touch of schmilsson in the night zip.
So if I wanted to take a JSON array of data like that, and put it in a TListBox, I'd do something like this (DBXJSON example, warning: not tested):
Then you have a list of IP addresses, and associated objects containing the full record that you can get at if the user selects one. (If you wanted to put the entire contents of each record into the list control, have a look at
TListView
. It works better than TListBox
for that.)And if you want to build an array of strings containing all the values, do something like this:
This is all just sample code, of course, but it should give you something to build on.
Mason WheelerMason Wheeler63.6k3535 gold badges222222 silver badges424424 bronze badges
EDIT2: AV Fixed with extreme ease.
EDIT: After further examining my own code, i realised it would cause a massive amount of memory leaks. However, i have since switched over to
SuperObject
and found the same result can be achieved in 2 lines of code with only 2 variables and no memory leaks;RetrievedJSON
is simply a string
containing the unparsed, plaintext JSON (i.e. not a JSONString
but an actual string).I've left the original code underneath for sake of continuity.
Select 'Copy pictures to a folder on my computer using Microsoft Scanner and Camera Wizard' and click on OK. Eyeshot camera driver windows 7 indir gezginler.
With assistance from Mason Wheeler in an earlier answer, as well as an answer provided by 'teran' on question 9608794, i successfully built the following to parse down to the actual level (i.e. the 'array' containing the data) i needed to access, and then output all items with a specific
JSONString.Value
into a listbox (named LB1
in the sample below); Xbox one controller driver no vibration.While this is an extremely round-about way of doing it, it allows me to look at each individual step, and see where it's iterating down through the JSON and with extreme ease, and to change it into a function where i can output any piece or range of data as a result based on one of multiple criteria. For the sake of verifying i got the correct number of items, i added 2
ShowMessage
routines at the end; One for the items in the listbox, and one for the number of instances of 'ip' data that i was parsing.This code was specifically tested in Firemonkey with CloudFlare API JSON results which were output into a
TMemo
exactly as they were retrieved (on an &calls_left&a=zone_ips&class=t&geo=1
API call, of course with your zone
, token
and email
appended in addition). It should be relatively easy to modify it to work with other results from the numerous other API calls too.To clarify, i did try Mason's code, but unfortunately i couldn't get it working. However, i have accepted his answer for the time being on the basis that the explanation he gave on the basics was worthy of it and assisted me in getting to an end-solution and coming up with something i can build from and teach myself.
Community♦
Json In Delphi
![Delphi Delphi](/uploads/1/3/3/2/133281801/464163742.png)
95811 gold badge1515 silver badges2424 bronze badges