Add ChromaDB service

rholang/Cargo.toml

@@ -45,6 +45,12 @@ tempfile = "3.19.1"
 clap = { version = "4.5", features = ["derive"] }
 tracing = { workspace = true }
 tracing-subscriber = { workspace = true }
+chromadb = { version = "2.3.0", features = ["openai"] }
+serde_json = { workspace = true }
+rust-bert = "0.23.0"
+console = "0.16.0"
+async-trait.workspace = true
+anyhow = "1.0.100"
 
 [build-dependencies]
 cc = "1.0"

rholang/examples/system-contract/chroma-db/01-create-collection.rho

@@ -0,0 +1,6 @@
+new createCollection(`rho:chroma:collection:new`), stdout(`rho:io:stdout`), retCh in {
+  createCollection!("bar", true, Nil, *retCh) |
+  for(@ok <- retCh) {
+      stdout!(ok)
+  }
+}

rholang/examples/system-contract/chroma-db/02-create-collection-meta.rho

@@ -0,0 +1,6 @@
+new createCollection(`rho:chroma:collection:new`), stdout(`rho:io:stdout`), retCh in {
+  createCollection!("foo", true, {"meta1" : 1, "two" : "42", "three" : 42, "meta2": "bar"}, *retCh) |
+  for(@res <- retCh) {
+      stdout!(res)
+  }
+}

rholang/examples/system-contract/chroma-db/03-get-collection-meta.rho

@@ -0,0 +1,6 @@
+new getCollectionMeta(`rho:chroma:collection:meta`), stdout(`rho:io:stdout`), retCh in {
+  getCollectionMeta!("foo", *retCh) |
+  for(@res <- retCh) {
+      stdout!(res)
+  }
+}

rholang/examples/system-contract/chroma-db/04-upsert-entries.rho

@@ -0,0 +1,16 @@
+new upsertEntries(`rho:chroma:collection:entries:new`), stdout(`rho:io:stdout`), retCh in {
+  upsertEntries!(
+    "foo",
+    { "doc1": ("Hello world!", Nil),
+      "doc2": (
+        "Hello world again!",
+        { "meta1": "42" }
+      )
+    },
+    true,
+    *retCh
+  ) |
+  for(@res <- retCh) {
+      stdout!(res)
+  }
+}

rholang/examples/system-contract/chroma-db/05-query-entries.rho

@@ -0,0 +1,6 @@
+new queryEntries(`rho:chroma:collection:entries:query`), stdout(`rho:io:stdout`), retCh in {
+  queryEntries!("foo", [ "Hello world" ], true, *retCh) |
+  for(@res <- retCh) {
+      stdout!(res)
+  }
+}