json-decoder | Type-safe JSON decoder | JSON Processing library
kandi X-RAY | json-decoder Summary
kandi X-RAY | json-decoder Summary
Type-safe JSON decoder
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- Returns an option with the given decoder
- Returns a result that succeeds with the given value
- Applies a function to the decoded value
- Attempts to attempt a list of decoders
- Returns an optional decoder for the given decoder
- Returns a result that succeeds with the given value
- Applies a function to the decoded value
- Attempts to attempt a list of decoders
- Returns an instance of the given decoder with null value
- Decodes an inner value of an inner option
- Decodes a JSON value using a given decoder
- Transform an Any object into a Try
- Decodes a list
- Map a decoder n
- Compares a value and a given predicate
- Picks a field from a JSON object
- Decodes a JSON value
- Decode the given decoder using the given decoder
- Decodes a JSON string using the provided decoder
- Applies a custom decoder at the specified leaf node
- Decodes a mapping
- Returns the first value on a sequence of values
- Returns a successful decoder that matches the given predicate
- Attempts to decode a string using the given decoder
- Returns an instance of the given option with the given value if it is defined
- Performs a computation on a checked function
- Returns a decoder that matches the given decoded value
- Creates a new decoder with a custom decoder
- Decodes an enum value
json-decoder Key Features
json-decoder Examples and Code Snippets
Community Discussions
Trending Discussions on json-decoder
QUESTION
I see
I don't believe the first is relevant for elm 0.19. I could not find a decode
function in NoRedInk/elm-json-decode-pipeline and I do not believe the :=
infix operator is still valid.
The second addresses the slightly different question of conditionally decoding based on the value of a JSON field.
If I have data coming over a port and the following types:
import Json.Decode exposing (Decoder, map, oneOf, string, succeed, andThen, map2, map4)
...ANSWER
Answered 2019-Jul-31 at 15:21you've done all the hard work. This should be all you need now. Note .map
is the quick way to do your case statement stuff.
QUESTION
I am trying to save high scores for a game and also load it in high score section, but the way I am saving adds more than one record to the JSON file. The problem is while loading, I get the error json.decoder.JSONDecodeError: Extra data
only when there is more than one record.
I am pretty sure this is my problem but me being a starter I cannot make sense out of it.
what I am saving
...ANSWER
Answered 2020-Feb-05 at 14:38In order to store more than one JSON record, use an array, as when loading you can just load JSON types (an an array is the ideal JSON type you're looking for for that use case).
In that case, to read all scores:
QUESTION
everyone. Need help opening and reading the file.
Got this txt file - https://yadi.sk/i/1TH7_SYfLss0JQ
It is a dictionary
{"id0":"url0", "id1":"url1", ..., "idn":"urln"}
But it was written using json into txt file.
...ANSWER
Answered 2019-Jan-10 at 04:19The basic difference between the file structure and actual json format is the missing commas and the lines are not enclosed within [
. So the same can be achieved with the below code snippet
QUESTION
There is a good solution here to match an IP with a mask eg 192.168.0.1/24
. I add the suggestion from https://regex101.com/ to escape the slash and it looks like this:
ANSWER
Answered 2018-Nov-08 at 21:13For JSON, you need to escape each backslash \
with another backslash:
QUESTION
Let's say I have an epoch millis value such as 1538637258426
, how do I convert that into a something like a DateTime
representation in Elm 0.19?
I'm not even sure which model I should use to represent a "date time" in Elm 0.19. I cannot find the Date module in core that is referred to from a lot of places on the web (such as this stackoverflow question). Also I cannot seem to install the elm-community/elm-time
package since it's not upgraded to support 0.19.
ANSWER
Answered 2018-Oct-06 at 11:17The official date/time library in 0.19 is elm/time
, which has replaced the old Date
module in core. The type you'll want to use is Time.Posix
, which you can obtain from a milliseconds value using Time.millisToPosix
.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install json-decoder
You can use json-decoder like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the json-decoder component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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