Client

RoamClient is the async HTTP client for the Roam Research API.

Creating a client

use roam_sdk::RoamClient;

let client = RoamClient::new("graph-name", "api-token");

The client is Clone — you can share it across async tasks.

Methods

pull

Fetch an entity by ID or lookup reference using a pull expression.

pub async fn pull(
    &self,
    eid: serde_json::Value,
    selector: &str,
) -> Result<PullResponse>

Parameters:

• eid — entity identifier. Either a direct eid or a lookup ref as an EDN string:

  • json!("[:block/uid \"02-21-2026\"]") — lookup by block UID

  • json!("[:node/title \"My Page\"]") — lookup by page title

• selector — EDN pull expression selecting which attributes to return

Returns: PullResponse { result: serde_json::Value }

Example:

use serde_json::json;

let eid = json!("[:node/title \"Projects\"]");
let selector = "[:block/uid :node/title :block/string {:block/children ...}]";

let resp = client.pull(eid, selector).await?;
let title = resp.result.get(":node/title").and_then(|v| v.as_str());

query

Run a Datalog query against the graph.

pub async fn query(
    &self,
    query: String,
    args: Vec<serde_json::Value>,
) -> Result<QueryResponse>

Parameters:

• query — Datalog query string with :find and :where clauses

• args — arguments for :in clause bindings (pass vec![] if none)

Returns: QueryResponse { result: Vec<Vec<serde_json::Value>> }

Each inner Vec is one result row, with values matching the :find variables.

Example:

let query = r#"[:find ?uid ?s
                :where [?b :block/string ?s]
                       [?b :block/uid ?uid]
                       [(clojure.string/includes? ?s "TODO")]]"#;

let resp = client.query(query.into(), vec![]).await?;
for row in &resp.result {
    let uid = row[0].as_str().unwrap_or("");
    let text = row[1].as_str().unwrap_or("");
    println!("{}: {}", uid, text);
}

write

Execute a write operation (create, update, delete, or move a block).

pub async fn write(&self, action: WriteAction) -> Result<()>

Parameters:

• action — a WriteAction variant describing the mutation

Example:

use roam_sdk::types::*;

client.write(WriteAction::UpdateBlock {
    block: BlockUpdate {
        uid: "abc123".into(),
        string: "Updated content".into(),
    },
}).await?;

See Types for all WriteAction variants.

write_batch

Execute multiple write operations in sequence. Each action is sent as an individual API request, stopping on the first error.

pub async fn write_batch(&self, actions: Vec<WriteAction>) -> Result<()>

Parameters:

• actions — a list of WriteAction variants to execute atomically

Example:

use roam_sdk::types::*;

client.write_batch(vec![
    WriteAction::CreatePage {
        page: PageCreate {
            title: "New Page".into(),
            uid: None,
        },
    },
    WriteAction::CreateBlock {
        location: BlockLocation {
            parent_uid: "page-uid".into(),
            order: OrderValue::Position("last".into()),
        },
        block: NewBlock {
            string: "First block".into(),
            uid: None,
            open: None,
        },
    },
]).await?;

Sends each action as a separate API request in order. Stops and returns the error if any request fails.

Authentication

The client sends the API token as a Bearer token in the X-Authorization header on every request. All communication goes over HTTPS via rustls (no OpenSSL needed).

Base URL

Requests go to https://api.roamresearch.com/api/graph/{graph_name}/:

Endpoint	Method
/pull	pull()
/q	query()
/write	write()