Shulou(Shulou.com)06/01 Report--

In this issue, the editor will bring you about how to deploy the Serverless takeout order system based on API gateway and cloud function SCF. The article is rich in content and analyzes and describes it from a professional point of view. I hope you can get something after reading this article.

The usage scenarios of API gateway combined with cloud function SCF are very rich. The editor will introduce how to quickly deploy Serverless takeout order system based on API gateway and cloud function SCF.

Typical scenarios used for message push

Takeout order system architecture diagram

Demo actual combat 1. Install Serverless Frameworknpm install-g serverless2. Initialize the project template sls init-t websocket-order3. View the project directory

After downloading to the local area, check the directory structure of the project as follows:

It contains DB, gateway, function and other sub-modules.

The db directory is used to create a PG Serverless database instance

Apigateway is used to create the corresponding API:

/ bill place order API,HTTP type

/ get_shop_info, get the store menu API

/ pgws, the websocket API used for message push

The list of functions is as follows:

Register the function ws_register.py to configure the environment variables of DB

Transfer function ws_trans.py, configure DB environment variables and apiid= message push API

Logout function ws_unregister.py, configure DB environment variables and apiid= message push API

Message push related functions:

Order function bill.py, configure DB environment variables and apiid= message push API

Pull the store information function get_shop_info.py to configure the environment variables of DB

Initialize the DB function init_db.py to configure the environment variables of DB

4. Modify configuration information. Change the .env.example file to a .env file, and get SecretId and SecretKey in API key management. # secret for credentialTENCENT_SECRET_ID=xxxxxxTENCENT_SECRET_KEY=xxxxxx# global configREGION=ap-shanghai

Project deployment

Sls deploy-- all6. Update configuration and deployment

Execute the init_db-dev function to initialize the database. In the console or vscode plug-in, click the test init_db-dev function to initialize the database and create tables.

Update the apiid configuration, deploy again to view the output information, configure the apiid of websocket API in the serverless.yml of the function_bill directory and the function_ws_trans directory, and redeploy the two functions to refresh the environment variable configuration.

Sls deploy-target=./function_ws_trans sls deploy-target=./function_bill7. Change the address of the client and the kitchen order system

App ordering system .html changes line 29 and line 88 xxxx is: the generated API gateway service domain name

The store kitchen system .html changes 17 lines of xxxx to the service domain name of API gateway

Demonstration of the effect:

The above is how to deploy the Serverless takeout order system based on API gateway and cloud function SCF. If you happen to have similar doubts, please refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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