diff --git a/Cargo.toml b/Cargo.toml
index 118505a..c3668f0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,11 +8,11 @@ edition = "2018"
 name = "kuska_ssb"
 
 [dependencies]
-kuska-handshake = { git = "https://github.com/Kuska-ssb/kuska-handshake", branch = "master" , features=["sync","async_std"] }
+kuska-handshake = { path = "../kuska-handshake", branch = "master" , features=["sync","async_std"] }
 sodiumoxide = { git = "https://github.com/Dhole/sodiumoxidez", branch = "extra" }
 base64 = "0.11.0"
 hex = "0.4.0"
-async-std = { version = "1.4.0", features=["unstable","attributes"] }
+async-std = { version = "1.5.0", features=["unstable","attributes"] }
 crossbeam = "0.7.3"
 log = "0.4.8"
 env_logger = "0.7.1"
diff --git a/examples/ssb-cli.rs b/examples/ssb-cli.rs
index 7c4df0a..ed9dcbd 100644
--- a/examples/ssb-cli.rs
+++ b/examples/ssb-cli.rs
@@ -20,7 +20,7 @@ use kuska_ssb::discovery::ssb_net_id;
 use kuska_ssb::feed::{is_privatebox, privatebox_decipher, Feed, Message};
 use kuska_ssb::keystore::from_patchwork_local;
 use kuska_ssb::keystore::OwnedIdentity;
-use kuska_ssb::rpc::{RecvMsg, RequestNo, RpcStream};
+use kuska_ssb::rpc::{RecvMsg, RequestNo, RpcStreamReader, RpcStreamWriter};
 
 use regex::Regex;
 use sodiumoxide::crypto::sign::ed25519;
@@ -71,7 +71,8 @@ impl std::fmt::Display for AppError {
 }
 
 async fn get_async<'a, R, W, T, F>(
-    client: &mut ApiHelper<R, W>,
+    rpc_reader : &mut RpcStreamReader<R>,
+    client: &mut ApiHelper<W>,
     req_no: RequestNo,
     f: F,
 ) -> SolarResult<T>
@@ -82,7 +83,7 @@ where
     T: Debug,
 {
     loop {
-        let (id, msg) = client.rpc().recv().await?;
+        let (id, msg) = rpc_reader.recv().await?;
         if id == req_no {
             match msg {
                 RecvMsg::RpcResponse(_type, body) => {
@@ -100,7 +101,8 @@ where
 }
 
 async fn print_source_until_eof<'a, R, W, T, F>(
-    client: &mut ApiHelper<R, W>,
+    rpc_reader : &mut RpcStreamReader<R>,
+    client: &mut ApiHelper<W>,
     req_no: RequestNo,
     f: F,
 ) -> SolarResult<()>
@@ -111,7 +113,7 @@ where
     T: Debug + serde::Deserialize<'a>,
 {
     loop {
-        let (id, msg) = client.rpc().recv().await?;
+        let (id, msg) = rpc_reader.recv().await?;
         if id == req_no {
             match msg {
                 RecvMsg::RpcResponse(_type, body) => {
@@ -189,10 +191,11 @@ async fn main() -> SolarResult<()> {
     let (box_stream_read, box_stream_write) =
         BoxStream::from_handshake(&socket, &socket, handshake, 0x8000).split_read_write();
 
-    let mut client = ApiHelper::new(RpcStream::new(box_stream_read, box_stream_write));
+    let mut rpc_reader = RpcStreamReader::new(box_stream_read);
+    let mut client = ApiHelper::new(RpcStreamWriter::new(box_stream_write));
 
     let req_id = client.whoami_req_send().await?;
-    let whoami = get_async(&mut client, req_id, whoami_res_parse).await?.id;
+    let whoami = get_async(&mut rpc_reader, &mut client, req_id, whoami_res_parse).await?.id;
 
     println!("😊 server says hello to {}", whoami);
 
@@ -211,7 +214,7 @@ async fn main() -> SolarResult<()> {
             }
             ("whoami", 1) => {
                 let req_id = client.whoami_req_send().await?;
-                let whoami = get_async(&mut client, req_id, whoami_res_parse).await?.id;
+                let whoami = get_async(&mut rpc_reader, &mut client, req_id, whoami_res_parse).await?.id;
                 println!("{}", whoami);
             }
             ("get", 2) => {
@@ -221,7 +224,7 @@ async fn main() -> SolarResult<()> {
                     args[1].clone()
                 };
                 let req_id = client.get_req_send(&msg_id).await?;
-                let msg = get_async(&mut client, req_id, message_res_parse).await?;
+                let msg = get_async(&mut rpc_reader, &mut client, req_id, message_res_parse).await?;
                 println!("{:?}", msg);
             }
             ("user", 2) => {
@@ -229,16 +232,16 @@ async fn main() -> SolarResult<()> {
 
                 let args = CreateHistoryStreamIn::new(user_id.clone());
                 let req_id = client.create_history_stream_req_send(&args).await?;
-                print_source_until_eof(&mut client, req_id, feed_res_parse).await?;
+                print_source_until_eof(&mut rpc_reader, &mut client, req_id, feed_res_parse).await?;
             }
             ("feed", 1) => {
                 let args = CreateStreamIn::default();
                 let req_id = client.create_feed_stream_req_send(&args).await?;
-                print_source_until_eof(&mut client, req_id, feed_res_parse).await?;
+                print_source_until_eof(&mut rpc_reader, &mut client, req_id, feed_res_parse).await?;
             }
             ("latest", 1) => {
                 let req_id = client.latest_req_send().await?;
-                print_source_until_eof(&mut client, req_id, latest_res_parse).await?;
+                print_source_until_eof(&mut rpc_reader, &mut client, req_id, latest_res_parse).await?;
             }
             ("private", 2) => {
                 let user_id = if args[1] == "me" { &whoami } else { &args[1] };
@@ -257,7 +260,7 @@ async fn main() -> SolarResult<()> {
                 let args = CreateHistoryStreamIn::new(user_id.clone());
                 let req_id = client.create_history_stream_req_send(&args).await?;
 
-                print_source_until_eof(&mut client, req_id, show_private).await?;
+                print_source_until_eof(&mut rpc_reader, &mut client, req_id, show_private).await?;
             }
             _ => println!("unknown command {}", line_buffer),
         }
diff --git a/src/api/dto/content.rs b/src/api/dto/content.rs
index a15ef9c..88146b7 100644
--- a/src/api/dto/content.rs
+++ b/src/api/dto/content.rs
@@ -96,7 +96,10 @@ pub enum TypedMessage {
     #[serde(rename = "pub")]
     Pub { address: Option<PubAddress> },
     #[serde(rename = "post")]
-    Post { post: Post },
+    Post {
+        text: String,
+        mentions: Option<Vec<Mention>>,
+    },
     #[serde(rename = "contact")]
     Contact {
         contact: Option<SsbId>,
diff --git a/src/api/dto/history_stream.rs b/src/api/dto/history_stream.rs
index eb429d0..d64bba3 100644
--- a/src/api/dto/history_stream.rs
+++ b/src/api/dto/history_stream.rs
@@ -34,7 +34,7 @@ impl CreateHistoryStreamIn {
             limit: None,
         }
     }
-    pub fn starting_seq(self: Self, seq: u64) -> Self {
+    pub fn after_seq(self: Self, seq: u64) -> Self {
         Self {
             seq: Some(seq),
             ..self
diff --git a/src/api/helper.rs b/src/api/helper.rs
index 2e00e4b..34aa757 100644
--- a/src/api/helper.rs
+++ b/src/api/helper.rs
@@ -1,7 +1,6 @@
 use crate::feed::Message;
-use crate::rpc::{Body, BodyType, RequestNo, RpcStream, RpcType};
-use async_std::io::{Read, Write};
-use serde_json;
+use crate::rpc::{Body, BodyType, RequestNo, RpcStreamWriter, RpcType};
+use async_std::io::Write;
 
 use super::dto;
 use super::error::Result;
@@ -51,16 +50,16 @@ impl ApiMethod {
     }
 }
 
-pub struct ApiHelper<R: Read + Unpin, W: Write + Unpin> {
-    rpc: RpcStream<R, W>,
+pub struct ApiHelper<W: Write + Unpin> {
+    rpc: RpcStreamWriter<W>,
 }
 
-impl<R: Read + Unpin, W: Write + Unpin> ApiHelper<R, W> {
-    pub fn new(rpc: RpcStream<R, W>) -> Self {
+impl<W: Write + Unpin> ApiHelper<W> {
+    pub fn new(rpc: RpcStreamWriter<W>) -> Self {
         Self { rpc }
     }
 
-    pub fn rpc(&mut self) -> &mut RpcStream<R, W> {
+    pub fn rpc(&mut self) -> &mut RpcStreamWriter<W> {
         &mut self.rpc
     }
 
diff --git a/src/crypto/sodium.rs b/src/crypto/sodium.rs
index d7d712b..ef007cb 100644
--- a/src/crypto/sodium.rs
+++ b/src/crypto/sodium.rs
@@ -1,4 +1,3 @@
-use base64;
 use sodiumoxide::crypto::hash::sha256;
 use sodiumoxide::crypto::sign::ed25519;
 
@@ -33,6 +32,12 @@ impl<'a> ToSsbId for ed25519::SecretKey {
     }
 }
 
+impl<'a> ToSsbId for sha256::Digest {
+    fn to_ssb_id(&self) -> String {
+        format!("{}{}", base64::encode(self), SHA256_SUFFIX)
+    }
+}
+
 impl ToSodiumObject for str {
     fn to_ed25519_pk(self: &str) -> Result<ed25519::PublicKey> {
         if !self.ends_with(CURVE_ED25519_SUFFIX) {
diff --git a/src/rpc/mod.rs b/src/rpc/mod.rs
index 8119efe..0129768 100644
--- a/src/rpc/mod.rs
+++ b/src/rpc/mod.rs
@@ -2,4 +2,4 @@ mod error;
 mod stream;
 
 pub use error::{Error, Result};
-pub use stream::{Body, BodyType, RecvMsg, RequestNo, RpcStream, RpcType};
+pub use stream::{Body, BodyType, RecvMsg, RequestNo, RpcStreamReader,RpcStreamWriter, RpcType};
diff --git a/src/rpc/stream.rs b/src/rpc/stream.rs
index 533bcbd..92c1f04 100644
--- a/src/rpc/stream.rs
+++ b/src/rpc/stream.rs
@@ -3,6 +3,8 @@ use super::error::{Error, Result};
 use async_std::io;
 use async_std::prelude::*;
 use log::{trace, warn};
+use std::pin::Pin;
+use std::task::{Context,Poll};
 
 use kuska_handshake::async_std::{BoxStreamRead, BoxStreamWrite};
 
@@ -125,8 +127,11 @@ impl Header {
     }
 }
 
-pub struct RpcStream<R: io::Read + Unpin, W: io::Write + Unpin> {
+pub struct RpcStreamReader<R: io::Read + Unpin> {
     box_reader: BoxStreamRead<R>,
+}
+
+pub struct RpcStreamWriter<W: io::Write + Unpin> {
     box_writer: BoxStreamWrite<W>,
     req_no: RequestNo,
 }
@@ -140,12 +145,10 @@ pub enum RecvMsg {
     CancelStreamRespose(),
 }
 
-impl<R: io::Read + Unpin, W: io::Write + Unpin> RpcStream<R, W> {
-    pub fn new(box_reader: BoxStreamRead<R>, box_writer: BoxStreamWrite<W>) -> RpcStream<R, W> {
-        RpcStream {
-            box_reader,
-            box_writer,
-            req_no: 0,
+impl<R: io::Read + Unpin> RpcStreamReader<R> {
+    pub fn new(box_reader: BoxStreamRead<R>) -> RpcStreamReader<R> {
+        RpcStreamReader {
+            box_reader
         }
     }
 
@@ -187,6 +190,22 @@ impl<R: io::Read + Unpin, W: io::Write + Unpin> RpcStream<R, W> {
             ))
         }
     }
+}
+/*
+impl<R: io::Read + Unpin> Stream for RpcStreamReader<R> {
+    type Item =  (RequestNo, RecvMsg);
+    fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
+        futures::ready!(self.recv())
+    }
+}
+*/
+impl<W: io::Write + Unpin> RpcStreamWriter<W> {
+    pub fn new(box_writer: BoxStreamWrite<W>) -> RpcStreamWriter<W> {
+        RpcStreamWriter {
+            box_writer,
+            req_no: 0,
+        }
+    }
 
     pub async fn send_request<T: serde::Serialize>(
         &mut self,