mirror of
https://github.com/actix/examples
synced 2024-12-18 08:23:10 +01:00
73 lines
1.8 KiB
Markdown
73 lines
1.8 KiB
Markdown
# async_pg example
|
|
|
|
## This example illustrates
|
|
|
|
- `tokio_postgres`
|
|
- use of `tokio_pg_mapper` for postgres data mapping
|
|
- `deadpool_postgres` for connection pooling
|
|
- `dotenv` + `config` for configuration
|
|
|
|
## Instructions
|
|
|
|
1. Create database user
|
|
|
|
```shell
|
|
createuser -P test_user
|
|
```
|
|
|
|
Enter a password of your choice. The following instructions assume you
|
|
used `testing` as password.
|
|
|
|
This step is **optional** and you can also use an existing database user
|
|
for that. Just make sure to replace `test_user` by the database user
|
|
of your choice in the following steps and change the `.env` file
|
|
containing the configuration accordingly.
|
|
|
|
2. Create database
|
|
|
|
```shell
|
|
createdb -O test_user testing_db
|
|
```
|
|
|
|
3. Initialize database
|
|
|
|
```shell
|
|
psql -f sql/schema.sql testing_db
|
|
```
|
|
|
|
This step can be repeated and clears the database as it drops and
|
|
recreates the schema `testing` which is used within the database.
|
|
|
|
4. Create `.env` file:
|
|
|
|
```ini
|
|
SERVER_ADDR=127.0.0.1:8080
|
|
PG.USER=test_user
|
|
PG.PASSWD=testing
|
|
PG.HOST=127.0.0.1
|
|
PG.PORT=5432
|
|
PG.DBNAME=testing_db
|
|
PG.POOL.MAX_SIZE=16
|
|
```
|
|
|
|
5. Run the server:
|
|
|
|
```shell
|
|
cargo run
|
|
```
|
|
|
|
6. Using a different terminal send an HTTP POST request to the running server:
|
|
|
|
```shell
|
|
echo '{"email": "ferris@thecrab.com", "first_name": "ferris", "last_name": "crab", "username": "ferreal"}' | http -f --json --print h POST http://127.0.0.1:8080/users
|
|
```
|
|
|
|
**...or using curl...**
|
|
|
|
```shell
|
|
curl -d '{"email": "ferris@thecrab.com", "first_name": "ferris", "last_name": "crab", "username": "ferreal"}' -H 'Content-Type: application/json' http://127.0.0.1:8080/users
|
|
```
|
|
|
|
A unique constraint exists for username, so sending this request twice
|
|
will return an internal server error (HTTP 500).
|