improve mysql readme

cors/backend/src/main.rs

@@ -26,6 +26,7 @@ async fn main() -> io::Result<()> {
             .service(user::info)
     })
     .bind(("127.0.0.1", 8080))?
+    .workers(2)
     .run()
     .await
 }

databases/mysql/README.md

@@ -1,79 +1,59 @@
 # MySQL
 
-This RESTful Actix Web API examples illustrates how to connect to MySQL database using a MySQL client library implemented in Rust; e.g., MySQL database driver.
+This RESTful Actix Web API illustrates how to use a MySQL database as a data source for various endpoints.
 
-Below APIs are supported:
+You'll need to have a MySQL (or compatible) server running on your machine to test this example.
 
-- Add Bank
-- Add Branch
-- Add Teller
-- Add Customer
-- Get Bank
-- Get Branch
-- Get Teller
-- Get Customer
+## Usage
 
-The RESTful Actix Web API has below listed dependencies:
+All the following commands assume that your current working directory is _this_ directory. I.e.:
 
-- [Actix Web](https://github.com/actix/actix-web) web framework for Rust
-- [Serde](https://github.com/serde-rs/serde) for serializing and deserializing Rust data structures
-- [MySQL Server](https://github.com/mysql/mysql-server) MySQL database server
-- [MySQL](https://github.com/blackbeam/rust-mysql-simple) MySQL database driver
+```console
+$ pwd
+.../databases/mysql
+```
 
-## Instructions
+1. Create database and tables:
 
-### NOTE:
+   The `sql` directory contains the SQL files used for database setup:
 
-You may need to ensure that you are running the commands with the correct MySQL user/password.
-
-1. Access MySQL Server:
-
-   Log in to the MySQL Server using a user account that has the `CREATE DATABASE` privilege.
-
-1. Create database:
-
-   ```sql
-   CREATE DATABASE my_bank;
+   ```sh
+   mysql -u root -p < sql/create_database.sql
+   mysql -u root -p my_bank < sql/bank_details.sql
+   mysql -u root -p my_bank < sql/branch_details.sql
+   mysql -u root -p my_bank < sql/teller_details.sql
+   mysql -u root -p my_bank < sql/customer_details.sql
    ```
 
-1. Create tables in the database:
+   For each step you will be prompted for the root user's password. If there's no password set on the root use, just hit enter again.
 
-   The `sql` directory contains below listed ".sql" files:
-
-   - `bankdetails.sql`
-   - `branch_details.sql`
-   - `teller_details.sql`
-   - `customer_details.sql`
-
-   Copy the contents of each of the ".sql" and execute them separately on MySQL Server. This will create four tables in the database.
-
-1. Create `.env` file:
+1. Create a `.env` file in this this directory:
 
    ```ini
    SERVER_ADDR=127.0.0.1:8080
-   MYSQL_USER=XXX
-   MYSQL_PASSWORD=XXX
+   MYSQL_USER=root
+   MYSQL_PASSWORD=<password>
    MYSQL_HOST=127.0.0.1
    MYSQL_PORT=3306
    MYSQL_DBNAME=my_bank
    ```
 
    Update "MYSQL_USER" and "MYSQL_PASSWORD" values with the correct MySQL user/password.
-   If your password contains dollar sign "$", then remember to escape it eg "123$abc" will need to be changed to "123\\$abc"
 
 1. Run the server:
 
-   ```shell
+   ```sh
    cargo run
    ```
 
-1. Using a different terminal send an HTTP GET/POST requests to the running server:
+1. Using a different terminal send requests to the running server. For example, using [HTTPie]:
 
-   The `apis` directory contains below listed API's files:
+   ```sh
+   http POST :8080/bank bank_name="Bank ABC" country="Kenya"
 
-   - `bank.txt`
-   - `branch.txt`
-   - `teller.txt`
-   - `customer.txt`
+   http :8080/bank
+   ```
 
-   Copy the curl request on each of the ".txt" and execute them on separate terminals. Each ".txt" contains curl request and expected JSON response data.
+   See [the API documentation pages](./apis/) for more info.
+
+[HTTPie]: https://httpie.io/cli

databases/mysql/apis/bank.md

@@ -0,0 +1,34 @@
+# Banks API
+
+All examples show cURL and [HTTPie](https://httpie.io/cli) snippets.
+
+## Adding A Bank
+
+```sh
+curl -d '{"bank_name":"Bank ABC","country":"Kenya"}' -H 'Content-Type: application/json' http://localhost:8080/bank
+
+http POST :8080/bank bank_name="Bank ABC" country="Kenya"
+```
+
+You should expect a 204 No Content response.
+
+## Listing Banks
+
+```sh
+curl http://localhost:8080/bank
+
+http :8080/bank
+```
+
+The response should be a 200 OK with the following JSON body:
+
+```json
+{
+  "bank_data": [
+    {
+      "bank_name": "bank abc",
+      "country": "kenya"
+    }
+  ]
+}
+```

databases/mysql/apis/bank.txt

@@ -1,41 +0,0 @@
-1.
-Linux
-
-curl -d '{"bank_name":"Bank ABC","country":"Kenya"}' -H 'Content-Type: application/json' http://127.0.0.1:8080/bank
-
-2.
-Windows
-
-curl -H "Content-type:application/json" --data-binary "{\"bank_name\":\"Bank ABC\",\"country\":\"Kenya\"}" http://127.0.0.1:8080/bank
-
-3.
-JSON response
-
-{
-  "status_code": 0,
-  "status_description": "Successful"
-}
-
-4.
-Linux
-
-curl 'http://localhost:8080/bank'
-
-5.
-Windows
-
-curl http://localhost:8080/bank
-
-6.
-JSON response
-
-{
-  "status_code": 0,
-  "status_description": "Successful",
-  "bank_data": [
-    {
-      "bank_name": "bank abc",
-      "country": "kenya"
-    }
-  ]
-}

databases/mysql/apis/branch.md

@@ -0,0 +1,34 @@
+# Branches API
+
+All examples show cURL and [HTTPie](https://httpie.io/cli) snippets.
+
+## Adding A Branch
+
+```sh
+curl -d '{"branch_name":"HQ branch", "location":"Central Business District"}' -H 'Content-Type: application/json' http://localhost:8080/branch
+
+http POST :8080/branch branch_name="HQ branch" branch_name="Central Business District"
+```
+
+You should expect a 204 No Content response.
+
+## Listing Branches
+
+```sh
+curl http://localhost:8080/branch
+
+http :8080/branch
+```
+
+The response should be a 200 OK with the following JSON body:
+
+```json
+{
+  "branch_data": [
+    {
+      "branch_name": "hq branch",
+      "location": "central business district"
+    }
+  ]
+}
+```

databases/mysql/apis/branch.txt

@@ -1,42 +0,0 @@
-1.
-Linux
-
-curl -d '{"branch_name":"HQ branch", "location":"Central Business District"}' -H 'Content-Type: application/json' http://127.0.0.1:8080/branch
-
-2.
-Windows
-
-curl -H "Content-type:application/json" --data-binary "{\"branch_name\":\"HQ branch\", \"location\":\"Central Business District\"}" http://127.0.0.1:8080/branch
-
-
-3.
-JSON response
-
-{
-  "status_code": 0,
-  "status_description": "Successful"
-}
-
-4.
-Linux
-
-curl 'http://localhost:8080/branch'
-
-5.
-Windows
-
-curl http://localhost:8080/branch
-
-6.
-JSON response
-
-{
-  "status_code": 0,
-  "status_description": "Successful",
-  "branch_data": [
-    {
-      "branch_name": "hq branch",
-      "location": "central business district"
-    }
-  ]
-}

databases/mysql/apis/customer.md

@@ -0,0 +1,34 @@
+# Customers API
+
+All examples show cURL and [HTTPie](https://httpie.io/cli) snippets.
+
+## Adding A Customer
+
+```sh
+curl -d '{"customer_name":"Peter Paul", "branch_name":"Central Business District"}' -H 'Content-Type: application/json' http://localhost:8080/customer
+
+http POST :8080/customer customer_name="Peter Paul" branch_name="Central Business District"
+```
+
+You should expect a 204 No Content response.
+
+## Listing Customers
+
+```sh
+curl http://localhost:8080/customer
+
+http :8080/customer
+```
+
+The response should be a 200 OK with the following JSON body:
+
+```json
+{
+  "customer_data": [
+    {
+      "customer_name": "peter paul",
+      "branch_name": "central business district"
+    }
+  ]
+}
+```

databases/mysql/apis/customer.txt

@@ -1,42 +0,0 @@
-1.
-Linux
-
-curl -d '{"customer_name":"Peter Paul", "branch_name":"Central Business District"}' -H 'Content-Type: application/json' http://127.0.0.1:8080/addcustomer
-
-2.
-Windows
-
-curl -H "Content-type:application/json" --data-binary "{\"customer_name\":\"Peter Paul\", \"branch_name\":\"Central Business District\"}" http://127.0.0.1:8080/addcustomer
-
-
-3.
-JSON response
-
-{
-  "status_code": 0,
-  "status_description": "Successful"
-}
-
-4.
-Linux
-
-curl 'http://localhost:8080/customer'
-
-5.
-Windows
-
-curl http://localhost:8080/customer
-
-6.
-JSON response
-
-{
-  "status_code": 0,
-  "status_description": "Successful",
-  "customer_data": [
-    {
-      "customer_name": "peter paul",
-      "branch_name": "central business district"
-    }
-  ]
-}

databases/mysql/apis/teller.md

@@ -0,0 +1,34 @@
+# Tellers API
+
+All examples show cURL and [HTTPie](https://httpie.io/cli) snippets.
+
+## Adding A Teller
+
+```sh
+curl -d '{"teller_name":"John Doe", "branch_name":"Central Business District"}' -H 'Content-Type: application/json' http://localhost:8080/teller
+
+http POST :8080/teller teller_name="John Doe" branch_name="Central Business District"
+```
+
+You should expect a 204 No Content response.
+
+## Listing Tellers
+
+```sh
+curl http://localhost:8080/teller
+
+http :8080/teller
+```
+
+The response should be a 200 OK with the following JSON body:
+
+```json
+{
+  "teller_data": [
+    {
+      "teller_name": "john doe",
+      "branch_name": "central business district"
+    }
+  ]
+}
+```

databases/mysql/apis/teller.txt

@@ -1,42 +0,0 @@
-1.
-Linux
-
-curl -d '{"teller_name":"John Doe", "branch_name":"Central Business District"}' -H 'Content-Type: application/json' http://127.0.0.1:8080/teller
-
-2.
-Windows
-
-curl -H "Content-type:application/json" --data-binary "{\"teller_name\":\"John Doe\", \"branch_name\":\"Central Business District\"}" http://127.0.0.1:8080/teller
-
-
-3.
-JSON response
-
-{
-  "status_code": 0,
-  "status_description": "Successful"
-}
-
-4.
-Linux
-
-curl 'http://localhost:8080/teller'
-
-5.
-Windows
-
-curl http://localhost:8080/teller
-
-6.
-JSON response
-
-{
-  "status_code": 0,
-  "status_description": "Successful",
-  "teller_data": [
-    {
-      "teller_name": "john doe",
-      "branch_name": "central business district"
-    }
-  ]
-}

databases/mysql/sql/create_database.sql

@@ -0,0 +1 @@
+CREATE DATABASE my_bank CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;

databases/mysql/src/main.rs

@@ -62,6 +62,7 @@ async fn main() -> io::Result<()> {
             .service(routes::get_customer)
     })
     .bind(("127.0.0.1", 8080))?
+    .workers(2)
     .run()
     .await
 }