A simple nodejs8 serverless function to fetch ChoTot gateway api for rental information in district 1

• NodeJS 8.0 and NPM

• AliCloud (AliYun) account with Function Compute(Alicloud serverless service) enabled

• fcli to configure Function Compute from cli.

• (Not required) AliCloud SLS for log collection

• A Serverless function that i setup as a cronjob on Alicloud.

• The cron is set to run hourly

• The logic is as follow:

  1. Fetch a pre-created JsonBin array.

  2. Fetch data from ChoTot Gateway with pre-defined parameters for location i picked. In this case its District 1, Hochiminh city, VietNam.

  3. Using the JSONBIN array, filter through all the old listing that we have encountered in the past using list_id of the ads.

  4. Filter through all the ads listing with a MAX_PRICE hardcoded at 7 Millions VND. (this could be move to env variable now that i think of it)

  5. Send all the remainding posts information to DingTalk which I use at work everyday. Together with a link which i can click to go to the website orignal post.

  6. Append all the newly found list_id to the previous old posts list. Update the new list to JsonBin for next run.

git clone https://github.com/sluongng/aliyunFC-chotot-2-ding

cd aliyunFC-chotot-2-ding

npm install

npm test

• You should be able to run and debug index.js locally.
• Setup fcli with correct ~/.fcli/config.yaml
• Run the following to init your function

fcli service create --service-name housing

fcli service function --service-name housing \
                      --function-name chotot \
                      --handler index.handler \
                      --runtime nodejs8 \
                      --code-dir .

• Go to Alicloud console for logging and environment variable setups

• There are 3 npm run commands: deploy, invoke, log for local development purposes

• Run npm run live-test to execute all 3 commands sequentially for a live test run.

• Timing trigger is not easy to setup via fcli so I suggest using web console for now.