Command-line tool that generates multiple JSON objects from a JSON template and a wordlist. It allows modifying specific fields within json_data, either by replacing their values or adding the words as prefixes and/or suffixes.
curl -LsSf [https://astral.sh/uv/install.sh](https://astral.sh/uv/install.sh) | sh
echo 'eval "$(uv generate-shell-completion bash)"' >> ~/.bashrcuv syncuv run cambalache.py [OPTIONS] template.json wordlist.txt output.jsontemplate.json: Your base JSON file (the first object is used).wordlist.txt: File with one word per line.output.json: Name of the resulting JSON file.
For the examples, we will use these input files:
template.json:
[
{
"testid": "tc101",
"description": "testcase",
"json_data": {
"email": "example@gmail.com",
"username": "testuser",
"city": "Lucinico"
}
}
]wordlist.txt:
user1
admin
test_ palabra
1. Replace ALL fields within json_data
(Default: if you don't specify --include or --ignore)
uv run cambalache.py template.json wordlist.txt output.jsonResult: 3 objects. In the first one, email, username, and city will be "user1". In the second, they will be "admin", etc.
2. Replace ONLY the email field
uv run cambalache.py template.json wordlist.txt output.json --include emailResult: 3 objects. email will be "user1", "admin", "test_ palabra". username and city remain original.
3. Replace ALL EXCEPT the city field
uv run cambalache.py template.json wordlist.txt soutput.json --ignore cityResult: 3 objects. email and username will be replaced by "user1", "admin", etc. city remains original ("Lucinico").
4. Generate by adding as a PREFIX to ALL fields
uv run cambalache.py template.json wordlist.txt output.json --prefixResult: 9 objects (3 words x 3 fields). You will have objects where email is "[dirección de correo electrónico eliminada]", others where username is "user1testuser", others where city is "user1Lucinico", and so on for "admin" and "test_ palabra".
5. Generate by adding as a SUFFIX to ALL fields
uv run cambalache.py template.json wordlist.txt output.json --suffixResult: 9 objects. You will have email as "example@gmail.comuser1", username as "testuseruser1", city as "Lucinicouser1", etc.
6. Generate objects with PREFIX and SUFFIX (separate) for ALL fields
uv run cambalache.py template.json wordlist.txt output.json --bothResult: 18 objects (3 words x 3 fields x 2 [prefix and suffix]). For each word/field combination, it generates one object with a prefix and another with a suffix. E.g., one with email="[dirección de correo electrónico eliminada]" and another with email="example@gmail.comuser1".
7. Generate with PREFIX, but ONLY for the username field
uv run cambalache.py template.json wordlist.txt output.json --prefix --include usernameResult: 3 objects. Only the username field is modified (e.g., "user1testuser"), the others remain as in the template.
8. Generate with SUFFIX, ignoring email and city (i.e., ONLY username)
uv run cambalache.py template.json wordlist.txt output.json --suffix --ignore email cityResult: 3 objects. Only username is modified with a suffix (e.g., "testuseruser1").
9. Generate with PREFIX and SUFFIX (separate), ONLY for email and city
uv run cambalache.py template.json wordlist.txt output.json --both --include email cityResult: 12 objects (3 words x 2 fields x 2 [prefix/suffix]). Objects modified only in email or city, with both prefix and suffix versions.