stackless_integrations/providers/railway/
postgres.rs

1//! `railway/postgres` integration.
2
3use std::collections::BTreeMap;
4
5use serde::Serialize;
6use stackless_stripe_projects::catalog::verify::CatalogService;
7use stackless_stripe_projects::provision::ProvisionContext;
8
9use super::FamilyResource;
10use crate::error::IntegrationError;
11use crate::hostable::{ConfigScope, Hostable, IntegrationHosting};
12
13pub const RESOURCE_KIND: &str = "integration-railway-postgres";
14
15#[derive(Debug, Serialize)]
16pub struct RailwayPostgresConfig {
17    #[serde(skip_serializing_if = "Option::is_none")]
18    pub region: Option<String>,
19}
20
21impl CatalogService for RailwayPostgresConfig {
22    const REFERENCE: &'static str = "railway/postgres";
23}
24
25#[derive(Debug)]
26pub struct RailwayPostgres;
27
28impl Hostable for RailwayPostgres {
29    const PROVIDER: &'static str = "railway-postgres";
30    const HOSTING: IntegrationHosting = IntegrationHosting::Managed;
31    const CONFIG_SCOPE: ConfigScope = ConfigScope::GlobalOnly;
32    const RESOURCE_KIND: &'static str = RESOURCE_KIND;
33    const OUTPUTS: &'static [&'static str] = &["database_url"];
34}
35
36impl FamilyResource for RailwayPostgres {
37    type Config = RailwayPostgresConfig;
38    const PROVIDER_PREFIX: &'static str = "RAILWAY";
39    // Provisional until pinned by `mise run discover railway/postgres`.
40    const OUTPUT_FIELDS: &'static [(&'static str, &'static str, bool)] =
41        &[("DATABASE_URL", "database_url", true)];
42
43    fn build_config(ctx: &ProvisionContext<'_>) -> Result<RailwayPostgresConfig, IntegrationError> {
44        let config = super::integration_config(ctx)?;
45        Ok(RailwayPostgresConfig {
46            region: super::interp_optional(ctx, &config, "region")?,
47        })
48    }
49}
50
51pub fn validate_config(
52    name: &str,
53    config: &BTreeMap<String, toml::Value>,
54) -> Result<(), IntegrationError> {
55    let _ = (name, config);
56    Ok(())
57}
58
59#[cfg(test)]
60mod tests {
61    use super::*;
62    use crate::ProviderOps;
63    use crate::resource::ResourcePayload;
64    use stackless_core::def::StackDef;
65    use stackless_stripe_projects::stripe::StripeProjects;
66    use stackless_stripe_projects::test_support;
67
68    #[test]
69    fn config_matches_catalog() {
70        const FIXTURE: &str = include_str!(concat!(
71            env!("CARGO_MANIFEST_DIR"),
72            "/../stackless-stripe-projects/tests/fixtures/catalog.json"
73        ));
74        let catalog = stackless_stripe_projects::Catalog::from_json_envelope(FIXTURE).unwrap();
75        let failures = stackless_stripe_projects::verify_service(
76            &catalog,
77            &RailwayPostgresConfig { region: None },
78        );
79        assert!(
80            failures.is_empty(),
81            "railway/postgres catalog gaps:\n{}",
82            failures.join("\n")
83        );
84    }
85
86    const CATALOG_ENVELOPE: &str = r##"{"ok":true,"command":"projects catalog","data":{"last_updated":"2026-07-11T00:00:00Z","services":[{"id":"prvsvc_postgres","object":"v2.provisioning.provider_service_detail","provider_id":"prvdr_railway","provider_name":"Railway","service_id":"postgres","categories":["database"],"kind":"deployable","scope":"project","availability":"available","development":false,"livemode":true,"pricing":{"type":"component"},"configuration_schema":{"properties":{"region":{"description":"Deployment region (e.g. us-west1, us-east4)","type":"string"}},"type":"object"}}]}}"##;
87
88    fn test_def() -> StackDef {
89        StackDef::parse(
90            r#"
91[stack]
92name = "atto"
93[stack.projects.stripe]
94project = "project_1"
95[integrations.res]
96provider = "railway-postgres"
97[services.api]
98source = { repo = "r", ref = "main" }
99env = { OUT = "${integrations.res.database_url}" }
100health = { path = "/health" }
101[services.api.local]
102run = "true"
103"#,
104        )
105        .unwrap()
106    }
107
108    #[tokio::test]
109    async fn provision_records_outputs() {
110        let runner = test_support::provision_script(
111            CATALOG_ENVELOPE,
112            serde_json::json!({"RAILWAY_DATABASE_URL": "val_database_url"}),
113            0,
114        );
115        let dir = tempfile::tempdir().unwrap();
116        std::fs::write(
117            dir.path().join("stackless.toml"),
118            "[stack]\nname=\"atto\"\n",
119        )
120        .unwrap();
121        let stripe = StripeProjects::new(&runner, dir.path());
122
123        let resource = RailwayPostgres
124            .provision(
125                &stripe.as_dyn(),
126                &test_def(),
127                dir.path(),
128                "demo",
129                "res",
130                "local",
131                false,
132            )
133            .await
134            .unwrap();
135        assert_eq!(resource.resource_kind, "integration-railway-postgres");
136        let payload: ResourcePayload = serde_json::from_str(&resource.payload).unwrap();
137        assert_eq!(payload.outputs["database_url"], "val_database_url");
138    }
139}
stackless_integrations/providers/railway/postgres.rs

stackless_integrations/providers/railway/
postgres.rs
