payu_india/
lib.rs

1use ring::digest::{digest, SHA512};
2use std::collections::HashMap;
3use std::str::from_utf8;
4
5pub mod bharat_qr;
6pub mod bin;
7pub mod checkout;
8pub mod downtime;
9pub mod emi;
10pub mod invoice;
11pub mod offers;
12pub mod payments;
13pub mod payouts;
14pub mod refunds;
15pub mod settlements;
16pub mod upi;
17
18#[derive(Debug, Copy, Clone)]
19pub struct PayuApiClient {
20    pub base_url: &'static str,
21    pub merchant_key: &'static str,
22    pub merchant_salt_v2: &'static str,
23}
24
25pub enum ApiEnv {
26    Test,
27    Production,
28}
29
30impl PayuApiClient {
31    pub fn new(env: ApiEnv, merchant_key: &'static str, merchant_salt_v2: &'static str) -> Self {
32        return Self {
33            base_url: match env {
34                ApiEnv::Test => "https://test.payu.in",
35                ApiEnv::Production => "https://info.payu.in",
36            },
37            merchant_key,
38            merchant_salt_v2,
39        };
40    }
41
42    fn generate_hash(
43        self,
44        mut vars: HashMap<String, String>,
45    ) -> Result<HashMap<String, String>, anyhow::Error> {
46        let command = vars.remove("command").unwrap();
47        let var = vars.iter().map(|kv| kv.1.to_string()).collect::<Vec<String>>().join("|");
48        let data = format!(
49            "{}|{}|{}|{}",
50            self.merchant_key, command, var, self.merchant_salt_v2
51        );
52        let digest = digest(&SHA512, data.as_bytes());
53        let hash = from_utf8(digest.as_ref()).unwrap().to_string();
54        let mut map: HashMap<String, String> = HashMap::new();
55        map.insert("key".to_string(), self.merchant_key.to_string());
56        map.insert("command".to_string(), command.to_string());
57        map.insert("hash".to_string(), hash);
58        return Ok(map);
59    }
60
61    pub fn validate_hash(self, vars: HashMap<String, String>, hash: &'static str) -> bool {
62        let gen_hash = self.generate_hash(vars).unwrap();
63        let generated_hash = gen_hash.get("hash").unwrap();
64        if generated_hash.to_string() == hash.to_string() {
65            return true;
66        }
67        return false;
68    }
69}
payu_india/lib.rs

payu_india/
lib.rs
