Json Analyzer - Library for filtering json packet.

For analyzing/filtering a custom JSON stream there are not much tools available. Hence this library provides some simple API for filtering out json packet.

How does this work ?

Json object is passed through one or more rule(s), if it matches any of the rules then its a pass condition.

How does a sample rule(s) look like ?

# Anything starting with # are comments

# Parent node being an array
if json[0].method == "object.updated" {
    if json[0].params.object.id == 205793453 {
        pp
    }
    # Iterate through the list
    for rule in json[0].params.object.rules {
        if rule.ruleName == "Match" {
            if rule.active == true {
                pp
            }
        }
    }
}

# Parent node being an object
if json.method == "object.update" {
	pp
}

# Many such rules can be written

As you can see above, you can write your own custom rules, if a match condition (pp) is encountered then it just returns success.

Please note :- Once a match condition is encountered it doesn't execute subsequent statements.

Check these sample rules for more complex rules.

List of keywords present

• json -> Denotes parent node
• if -> Comparing conditions
• for -> Loops through a list
• in -> Used along with for
• pp -> pass condition

Supported features in version-1.0

• Supports recurssive if and for loop.
• Supports comparison in the form of string.
• Supports implementation in c++.

Supported features in version-2.0

• Supports comparison of basic data types like string, int64, bool, double.
• Supports more comparison operators like >, >=, <, <=, ==.

Supported features in version-3.0

• Supports implementation in go.

Supported features in upcoming release

• PYTHON support.
• Support for boolean operators (and/or).

Some Caveats

• Beggining of the line must not be empty.
• Validation of the statements are not done.
• Go implementation has issues while comparing int64 numbers