Availability

This routine is available starting with SIL Engine™ 4.1.0.

Syntax

fromJson(json)

Description

Converts the given JSON string into a SIL™ type (can be a primitive, array or struct).

Parameters

Parameter name

Type

Required

Description

json

string

Yes

The JSON to be converted.

Return type

variable return type - depending on the left hand side operator type

Examples

Both examples show how JSON data can be parsed into an array or struct collections. Both examples use the following struct definitions:

struct code {
    number [] rgba;
    string hex;
}

struct color {
    string color;
    string category;
    string type;
    code code;
}

struct colors {
    color [] colors;
}

Example 1 - Reading JSON from a file

string json = readFromTextFile("C:\\colors.json");


colors cData;
cData = fromJson(json);

return cData.colors[0].color;

Example 2 - Reading JSON from a variable

string json = "{\"colors\":[{\"color\":\"red\",\"category\":\"hue\",\"type\":\"primary\",\"code\":{\"rgba\":[255,0,0,1],\"hex\":\"#FF0\"}}]}";

colors cData;
cData = fromJson(json);

return cData.colors[0].color;


See also