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https://github.com/prabhas9346/covid19-app-nodejs


https://github.com/prabhas9346/covid19-app-nodejs

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# Covid-19 India Portal



Given two files `app.js` and a database file `covid19IndiaPortal.db` consisting of three tables `state`, `district` and `user`.



Write APIs to perform operations on the tables `state`, `district` only after authentication of the user.



The columns of the tables are given below,



**State Table**



| Columns    | Type    |

| ---------- | ------- |

| state_id   | INTEGER |

| state_name | TEXT    |

| population | INTEGER |



**District Table**



| Columns       | Type    |

| ------------- | ------- |

| district_id   | INTEGER |

| district_name | TEXT    |

| state_id      | INTEGER |

| cases         | INTEGER |

| cured         | INTEGER |

| active        | INTEGER |

| deaths        | INTEGER |



You can use your previous code if required.



#### Sample Valid User Credentials



```

{

  "username": "christopher_phillips",

  "password": "christy@123"

}

```



### API 1



#### Path: `/login/`



#### Method: `POST`



**Request**



```

{

  "username": "christopher_phillips",

  "password": "christy@123"

}

```



- **Scenario 1**



  - **Description**:



    If an unregistered user tries to login



  - **Response**

    - **Status code**

      ```

      400

      ```

    - **Body**

      ```

      Invalid user

      ```



- **Scenario 2**



  - **Description**:



    If the user provides an incorrect password



  - **Response**

    - **Status code**

      ```

      400

      ```

    - **Body**

      ```

      Invalid password

      ```



- **Scenario 3**



  - **Description**:



    Successful login of the user



  - **Response**



    Return the JWT Token



    ```

    {

      "jwtToken": "ak2284ns8Di32......"

    }

    ```



### Authentication with Token



- **Scenario 1**



  - **Description**:



    If the token is not provided by the user or an invalid token



  - **Response**

    - **Status code**

      ```

      401

      ```

    - **Body**

      ```

      Invalid JWT Token

      ```



- **Scenario 2**

  After successful verification of token proceed to next middleware or handler



### API 2



#### Path: `/states/`



#### Method: `GET`



#### Description:



Returns a list of all states in the state table



#### Response



```

[

  {

    "stateId": 1,

    "stateName": "Andaman and Nicobar Islands",

    "population": 380581

  },



  ...

]

```



### API 3



#### Path: `/states/:stateId/`



#### Method: `GET`



#### Description:



Returns a state based on the state ID



#### Response



```

{

  "stateId": 8,

  "stateName": "Delhi",

  "population": 16787941

}

```



### API 4



#### Path: `/districts/`



#### Method: `POST`



#### Description:



Create a district in the district table, `district_id` is auto-incremented



#### Request



```

{

  "districtName": "Bagalkot",

  "stateId": 3,

  "cases": 2323,

  "cured": 2000,

  "active": 315,

  "deaths": 8

}

```



#### Response



```

District Successfully Added

```



### API 5



#### Path: `/districts/:districtId/`



#### Method: `GET`



#### Description:



Returns a district based on the district ID



#### Response



```

{

  "districtId": 322,

  "districtName": "Palakkad",

  "stateId": 17,

  "cases": 61558,

  "cured": 59276,

  "active": 2095,

  "deaths": 177

}

```



### API 6



#### Path: `/districts/:districtId/`



#### Method: `DELETE`



#### Description:



Deletes a district from the district table based on the district ID



#### Response



```

District Removed



```



### API 7



#### Path: `/districts/:districtId/`



#### Method: `PUT`



#### Description:



Updates the details of a specific district based on the district ID



#### Request



```

{

  "districtName": "Nadia",

  "stateId": 3,

  "cases": 9628,

  "cured": 6524,

  "active": 3000,

  "deaths": 104

}

```



#### Response



```



District Details Updated



```



### API 8



#### Path: `/states/:stateId/stats/`



#### Method: `GET`



#### Description:



Returns the statistics of total cases, cured, active, deaths of a specific state based on state ID



#### Response



```

{

  "totalCases": 724355,

  "totalCured": 615324,

  "totalActive": 99254,

  "totalDeaths": 9777

}



```







Use `npm install` to install the packages.



**Export the express instance using the default export syntax.**



**Use Common JS module syntax.**

# Covid19-APP-NODEJS