This Serverless Azure Function looks up a stock on Yahoo Finance (or Yahoo Finance Canada) and returns a JSON object with the symbol, company name, and current stock price.
It uses Playwright's headless, Chromium browser to capture the HTML of the page.
The HTML is parsed using Cheerio (a Node.js implementation of jQuery) to scrape the HTML content looking for specific tags that contain the current company name and current stock price.
Run an npm install or update
npm i
Install the Azure extension (which installs the Azure CLI tools) within Visual Studio Code then invoke the function start script. The local instance should be bound to the endpoint of http://localhost:7071/api/GetStockPrice
To look up a symbol append ?symbol to the above URL. For a company listed on the Toronto Stock exchange append &exchange=TSX to the URL.
Examples of the endpoints can be found below. Note that the currency from the TSX is listed in Canadian dollars.
Complete the following steps:
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The Serverless Azure Function must be Linux based.
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In the .vscode/settings.json file remove the postDeployTask and preDeployTask definitions.
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In the .vscode/settings.json file add a definition for "azureFunctions.scmDoBuildDuringDeployment": true or alternatively navigate to the Settings > Configuration > Application settings blade from within the Azure portal and create a setting for SCM_DO_BUILD_DURING_DEPLOYMENT set to true
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In the Azure portal navigate to the Settings > Configuration > Application settings blade and create a setting for PLAYWRIGHT_BROWSERS_PATH set to 0.
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In the .funcignore file add an entry for node_modules since the packages will be installed on the server during deployment.
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In the Azure Portal define any CORS entries in the API > CORS blade.
{
"symbol": "SNOW",
"name": "Snowflake Inc. (SNOW)",
"price": "132.31"
}{
"symbol": "BB",
"name": "BlackBerry Limited (BB.TO)",
"price": "5.93"
}All terms used are copyright to their original authors.