Modular•15mo ago

HOWTO fetch internet resources

Is there a way in mojo that can be used for fetching websites, get and post?

12 Replies

There is not a built-in way to do it, but you can use the Python interop to use a Python library to do requests for you. In the future the community or Modular may build a library to do it in Mojo natively, but currently Python interop is the only way.

Hasan YousefOP•15mo ago

Thanks, I tried using request in Jupyter book it is fine, but in file.mojo it gave an error:

from python import Python

# The Python way: `import requests as http`
let http = Python.import_module("requests")

# Now use request as if writing in Python

fn main():
    let url = 'http://example.com'
    let response = http.get(url)
    let content = response.text
    print(content)

from python import Python

# The Python way: `import requests as http`
let http = Python.import_module("requests")

# Now use request as if writing in Python

fn main():
    let url = 'http://example.com'
    let response = http.get(url)
    let content = response.text
    print(content)

I got:

/home/hajsf/mojo/python.mojo:1:20: error: recursive reference to declaration
from python import Python
                   ^
/home/hajsf/mojo/python.mojo:1:6: note: previously used here
from python import Python
     ^
/home/hajsf/mojo/python.mojo:1:1: error: 'object' does not refer to a package or module
from python import Python
^
mojo: error: failed to parse the provided Mojo

/home/hajsf/mojo/python.mojo:1:20: error: recursive reference to declaration
from python import Python
                   ^
/home/hajsf/mojo/python.mojo:1:6: note: previously used here
from python import Python
     ^
/home/hajsf/mojo/python.mojo:1:1: error: 'object' does not refer to a package or module
from python import Python
^
mojo: error: failed to parse the provided Mojo

Kushagra•15mo ago

Could it be because of a top level variable?

roopesh puthalath•15mo ago

@Kushagra @Hasan Yousef @Alex Kirchhoff

message.txt

Kushagra•15mo ago

Ok, I'll try and let you know

roopesh puthalath•15mo ago

@Hasan Yousef let http = Python.import_module("requests") , add this under main it works , post i didnt check

Kushagra•15mo ago

I thought of exactly the same

roopesh puthalath•15mo ago

Hasan YousefOP•15mo ago

Thanks @roopesh puthalath @Kushagra and @Alex Kirchhoff , I deeply appreciate it. but have a question here, will this make the program speed the same as python or it will be supercharged by mojo?

roopesh puthalath•15mo ago

@Hasan Yousef here the speed is driven by the latency of your fetching.

Alex Kirchhoff•15mo ago

Only the parts written in Mojo will experience any speed-up.

Prabhu•15mo ago

This is because you are shadowing the stdlib module 'python'. Don't create a "python.mojo" file as that will confuse mojo (or Python).

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HOWTO fetch internet resources