How to query CoinMarketCap with Julia (rest api)

General Usage
1

Hello,

How can I translate the following request to a Julia function:

curl -H "X-CMC_PRO_API_KEY: b54bcf4d-1bca-4e8e-9a24-22ff2c3d462c" -H "Accept: application/json" -d "start=1&limit=5000&convert=USD" -G https://sandbox.coinmarketcap.com/v1/cryptocurrency/listings/latest

Same code in Python:

#This example uses Python 2.7 and the python-request library.

from requests import Request, Session
from requests.exceptions import ConnectionError, Timeout, TooManyRedirects
import json

url = 'https://sandbox-api.coinmarketcap.com/v1/cryptocurrency/listings/latest'
parameters = {
  'start':'1',
  'limit':'5000',
  'convert':'USD'
}
headers = {
  'Accepts': 'application/json',
  'X-CMC_PRO_API_KEY': 'b54bcf4d-1bca-4e8e-9a24-22ff2c3d462c',
}

session = Session()
session.headers.update(headers)

try:
  response = session.get(url, params=parameters)
  data = json.loads(response.text)
  print(data)
except (ConnectionError, Timeout, TooManyRedirects) as e:
  print(e)

Any hints welcome!

For testing the test API Key b54bcf4d-1bca-4e8e-9a24-22ff2c3d462c for sandbox-api.coinmarketcap.com can be used.

First question: Any package that I should try?

2

OK, this is how far I got so far:

using HTTP

const URL = "https://sandbox-api.coinmarketcap.com/v1/cryptocurrency/listings/latest"

function make_API_call(url)
    try
        response = HTTP.get(url)
        return String(response.body)
    catch e
        return "Error occurred : $e"
    end
end

response = make_API_call(URL)
println(response)

But how can I pass the headers and the parameters?

3

Finally it is working: :slight_smile:

using HTTP

const URL     = "https://sandbox-api.coinmarketcap.com/v1/cryptocurrency/listings/latest"

function make_API_call(url)
    try
        response = HTTP.get(url, ["Accepts" => "application/json", "X-CMC_PRO_API_KEY" => "b54bcf4d-1bca-4e8e-9a24-22ff2c3d462c"], "{'start': '1', 'limit': '5000', 'convert': 'USD'}")
        return String(response.body)
    catch e
        return "Error occurred : $e"
    end
end

response = make_API_call(URL)
println(response)