Lua Requires Chilkat v11.5.0+

curl with OAuth2 Client Credentials

See more CURL Examples

This example shows how to run a simple CURL command with an OAuth2 access token for authorization. We use CURL to retrieve a SharePoint site ID, and Chilkat automatically fetches the OAuth2 access token using the provided credentials. Lua

local chilkat = require("chilkat")

-- This example will run the following curl command

-- curl -X GET "https://graph.microsoft.com/v1.0/sites/{{sharepoint_hostname}}:/sites/{{site_name}}" \
--   -H "Authorization: Bearer ACCESS_TOKEN" \
--   -H "Accept: application/json"

local sb = chilkat.StringBuilder.new()
sb:append_ln("curl -X GET \"https://graph.microsoft.com/v1.0/sites/{{sharepoint_hostname}}:/sites/{{site_name}}\" \\")
sb:append_ln("  -H \"Authorization: Bearer ACCESS_TOKEN\" \\")
sb:append_ln("  -H \"Accept: application/json\"")

-- Build the JSON that provides information for getting the OAuth2 access token using the OAuth2 client credentials flow.
local jsonOAuth2 = chilkat.JsonObject.new()

jsonOAuth2:update_string("oauth2.client_id", "CLIENT_ID")
jsonOAuth2:update_string("oauth2.client_secret", "CLIENT_SECRET")
jsonOAuth2:update_string("oauth2.scope", "https://graph.microsoft.com/.default")
jsonOAuth2:update_string("oauth2.token_endpoint", "https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token")

local httpCurl = chilkat.HttpCurl.new()

-- Provide the information for getting the OAuth2 access token from the token endpoint
-- Note: The Authorization header specified in the curl command will be ignored and replaced using the OAuth2 access token obtained at runtime from the token endpoint.
httpCurl:set_auth(jsonOAuth2)

-- The placeholders {{sharepoint_hostname}} and {{site_name}} represent variables that must be defined before execution.
-- When DoYourThing runs the curl command, it automatically substitutes these placeholders with their corresponding values.
-- Below are the values assigned to these variables:
httpCurl:set_var("sharepoint_hostname", "example.sharepoint.com")
httpCurl:set_var("site_name", "test")

-- Run the curl command.
local success = httpCurl:do_your_thing(sb:get_as_string())
if not success then
    print(httpCurl.last_error_text)
    return
end

local responseJson = chilkat.JsonObject.new()
responseJson.emit_compact = false

httpCurl:get_response_json(responseJson)

local statusCode = httpCurl.status_code
print("response status code: " .. statusCode)

print(responseJson:emit())