This is a small parser library for parsing the blok_payload
field of Instagram / Threads API responses. This parser has no API details about IG/Threads APIs; it is only for being able to pick apart the payloads in code.
import createBlokParser from '@fordi-org/bloks-parser';
const bloks_payload = `
(bk.action.map.Make,
(bk.action.array.Make, "login_type", "login_source"),
(bk.action.array.Make, "Password", "Login")
)
`;
const parseBloks = createBlokParser();
const bloks = parseBloks(bloks_payload);
and the result will be:
["bk.action.map.Make",
["bk.action.map.Make", "login_type", "login_source"],
["bk.action.map.Make", "Password", "Login"]
]
The parser is also designed so you can create your own handlers for each blok type when generating the parser, e.g.,
import createBlokParser from '@fordi-org/bloks-parser';
const parse = createBlokParser({
"bk.action.array.Make": (_, entries) => entries,
"bk.action.i32.Const": (_, [value]) => parseInt(value),
"bk.action.bool.Const": (_, [value]) => !!value,
});
const payload = '(bk.action.array.Make, (bk.action.i32.Const, 42069), "nice", (bk.action.bool.Const, true))';
console.log(JSON.stringify(parse(payload)));
[42069, "nice", true]
The special @
processor will allow you to have more custom behavior than just (name, args) => [name, ...args]
, which is the default. This is useful in that you could have something like,
/*...*/
"@": (name, args) => {
console.warn(`Unknown blok: ${name} (\n ${JSON.stringify(args, null, 2).split('\n').join('\n ')}\n)`);
return [name, ...args];
},
/*...*/
So, like, for debugging, that'll report when it comes across a block type you haven't handled yet.
To get the repo working:
npm ci
npm build:peg
If you make changes to src/bloks.pegjs
, you must run npm build:peg
again.
Of note, there's no unit tests as yet. I'll make a few sometime this week.