holochain · willemolding · Oct 31, 2019 · Oct 30, 2019 · Oct 30, 2019 · Oct 30, 2019
diff --git a/CHANGELOG-UNRELEASED.md b/CHANGELOG-UNRELEASED.md
@@ -8,6 +8,8 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 *  Allows the HC CLI to generate zomes from template repos. This will by default use the default holochain template repos (holochain/rust-zome-template and holochain/rust-proc-zome-template) but can also point to custom templates in remote repos or locally (e.g. `hc generate zomes/my_zome https://github.com/org/some-custom-zome-template`). [#1565](https://github.com/holochain/holochain-rust/pull/1565)
 * Adds option `--property` to `hc hash` that sets DNA properties for hash calculation. [#1807](https://github.com/holochain/holochain-rust/pull/1807)
+* Adds a prelude module to the HDK. Adding the statement `use hdk::prelude::*` should be enough for 90% of zome development [#1816](https://github.com/holochain/holochain-rust/pull/1816)
+
 ### Changed
 
 ### Deprecated

diff --git a/app_spec/zomes/blog/code/Cargo.toml b/app_spec/zomes/blog/code/Cargo.toml
@@ -2,14 +2,15 @@
 name = "blog"
 version = "0.0.34-alpha1"
 authors = ["Holochain Core Dev Team <devcore@holochain.org>"]
+edition = "2018"
 
 [dependencies]
+hdk = { path = "../../../../crates/hdk" }
 serde = "=1.0.89"
 serde_json = { version = "=1.0.39", features = ["preserve_order"] }
-hdk = { path = "../../../../crates/hdk" }
-holochain_json_derive = "=0.0.17"
 serde_derive = "=1.0.89"
 boolinator = "=2.4.0"
+
 [lib]
 path = "src/lib.rs"
 crate-type = ["cdylib"]
diff --git a/app_spec/zomes/blog/code/src/blog.rs b/app_spec/zomes/blog/code/src/blog.rs
@@ -1,33 +1,16 @@
+use hdk::prelude::*;
 use hdk::{
-    self,
-    error::{ZomeApiError, ZomeApiResult},
-    holochain_persistence_api::{
-        cas::content::Address,
-    },
-    holochain_json_api::{
-        json::JsonString,
-        error::JsonError
-    },
+    serde_json::json,
     holochain_core_types::{
         dna::capabilities::CapabilityRequest,
-        entry::{cap_entries::CapabilityType, entry_type::EntryType, Entry},
-        error::HolochainError,
+        entry::{cap_entries::CapabilityType},
         signature::{Provenance, Signature},
-        link::LinkMatch,
-    },
-    holochain_wasm_utils::api_serialization::{
-        commit_entry::CommitEntryOptions,
-        get_entry::{
-            EntryHistory, GetEntryOptions, GetEntryResult, GetEntryResultType, StatusRequestKind,
-        },
-        get_links::{GetLinksOptions, GetLinksResult},
-        QueryArgsOptions, QueryResult,
     },
     AGENT_ADDRESS, AGENT_ID_STR, CAPABILITY_REQ, DNA_ADDRESS, DNA_NAME, PROPERTIES, PUBLIC_TOKEN
 };
 
-use memo::Memo;
-use post::Post;
+use crate::memo::Memo;
+use crate::post::Post;
 use std::{
     collections::BTreeMap,
     convert::{TryFrom, TryInto},
@@ -567,9 +550,9 @@ pub fn handle_get_post_bridged(post_address: Address) -> ZomeApiResult<Option<En
 #[cfg(test)]
 pub mod tests {
 
-    use blog::{check_sum_args, post_entry, SumInput};
+    use crate::blog::{check_sum_args, post_entry, SumInput};
     use hdk::holochain_core_types::entry::{entry_type::AppEntryType, AppEntryValue, Entry};
-    use post::Post;
+    use crate::post::Post;
 
     #[test]
     fn check_sum_args_test() {

diff --git a/app_spec/zomes/blog/code/src/lib.rs b/app_spec/zomes/blog/code/src/lib.rs
@@ -1,30 +1,18 @@
-#![warn(unused_extern_crates)]
-#[macro_use]
-extern crate hdk;
-#[macro_use]
-extern crate serde_derive;
-extern crate boolinator;
-#[macro_use]
-extern crate serde_json;
-#[macro_use]
-extern crate holochain_json_derive;
-
-pub mod blog;
-pub mod memo;
-pub mod post;
-
-use blog::Env;
+use hdk::prelude::*;
 use hdk::{
-    error::ZomeApiResult,
-    holochain_core_types::{entry::Entry, signature::Provenance},
-    holochain_json_api::{error::JsonError, json::JsonString},
-    holochain_persistence_api::cas::content::Address,
+    holochain_core_types::{signature::Provenance},
     holochain_wasm_utils::api_serialization::{
         get_entry::{EntryHistory, GetEntryResult},
         get_links::GetLinksResult,
     },
 };
 
+mod blog;
+mod memo;
+mod post;
+
+use blog::Env;
+
 define_zome! {
 
     entries: [

diff --git a/app_spec/zomes/blog/code/src/memo.rs b/app_spec/zomes/blog/code/src/memo.rs
@@ -1,15 +1,7 @@
 /// This file holds everything that represents the "memo" entry type.
 /// a Memo is essentially a private post that should never be publically
 /// published on the dht.
-use hdk::entry_definition::ValidatingEntryType;
-use hdk::{
-    holochain_core_types::{
-        dna::entry_types::Sharing
-    },
-    holochain_json_api::{
-        error::JsonError, json::JsonString,
-    }
-};
+use hdk::prelude::*;
 
 /// We declare the structure of our entry type with this Rust struct.
 /// It will be checked automatically by the macro below, similar

diff --git a/app_spec/zomes/blog/code/src/post.rs b/app_spec/zomes/blog/code/src/post.rs
@@ -1,14 +1,7 @@
-use boolinator::Boolinator;
-use hdk::entry_definition::ValidatingEntryType;
 /// This file holds everything that represents the "post" entry type.
-use hdk::holochain_core_types::{
-    dna::entry_types::Sharing,
-    validation::EntryValidationData,
-};
-use hdk::holochain_json_api::{
-    error::JsonError, json::JsonString,
-};
+use hdk::prelude::*;
 
+use boolinator::Boolinator;
 
 /// We declare the structure of our entry type with this Rust struct.
 /// It will be checked automatically by the macro below, similar

diff --git a/app_spec/zomes/converse/code/Cargo.toml b/app_spec/zomes/converse/code/Cargo.toml
@@ -5,10 +5,10 @@ authors = ["Julian Laubstein <contact@julianlaubstein.de>"]
 edition = "2018"
 
 [dependencies]
+hdk = { path = "../../../../crates/hdk" }
 serde = "=1.0.89"
 serde_json = "=1.0.39"
 serde_derive = "=1.0.89"
-hdk = { path = "../../../../crates/hdk" }
 
 [lib]
 path = "src/lib.rs"

diff --git a/app_spec/zomes/converse/code/src/lib.rs b/app_spec/zomes/converse/code/src/lib.rs
@@ -1,17 +1,8 @@
-#[macro_use]
-extern crate hdk;
-#[macro_use]
-extern crate serde_derive;
-
+use hdk::prelude::*;
 use hdk::{
-    error::ZomeApiResult,
     holochain_core_types::{
         signature::{Provenance, Signature},
     },
-    holochain_json_api::{
-        error::JsonError,
-        json::JsonString,
-    },
     holochain_wasm_utils::api_serialization::keystore::KeyType,
 };
 

diff --git a/app_spec/zomes/simple/code/Cargo.toml b/app_spec/zomes/simple/code/Cargo.toml
@@ -5,11 +5,10 @@ authors = ["Ashanti Mutinta <Ashantimutinta@gmail.com>"]
 edition = "2018"
 
 [dependencies]
+hdk = { path = "../../../../crates/hdk" }
 serde = "=1.0.89"
 serde_json = { version = "=1.0.39", features = ["preserve_order"] }
 serde_derive = "=1.0.89"
-hdk = { path = "../../../../crates/hdk" }
-holochain_json_derive = "=0.0.17"
 
 [lib]
 path = "src/lib.rs"

diff --git a/app_spec/zomes/simple/code/src/lib.rs b/app_spec/zomes/simple/code/src/lib.rs
@@ -1,41 +1,10 @@
-#![warn(unused_extern_crates)]
-#[macro_use]
-extern crate hdk;
-#[macro_use]
-extern crate serde_derive;
-#[macro_use]
-extern crate holochain_json_derive;
-
-use hdk::{
-    entry_definition::ValidatingEntryType,
-    error::ZomeApiResult,
-};
-use hdk::holochain_core_types::{
-    dna::entry_types::Sharing,
-    entry::Entry,
-    link::LinkMatch,
-    agent::AgentId,
-    validation::EntryValidationData,
-};
-use hdk::holochain_persistence_api::{
-    cas::content::Address,
-    hash::HashString
-};
-use hdk::holochain_json_api::{
-    json::JsonString,
-    error::JsonError
-};
-
-
-use hdk::holochain_wasm_utils::api_serialization::get_links::{GetLinksResult,LinksStatusRequestKind,GetLinksOptions,GetLinksResultCount};
-
-
+use hdk::prelude::*;
 // see https://developer.holochain.org/api/latest/hdk/ for info on using the hdk library
 
 // This is a sample zome that defines an entry type "MyEntry" that can be committed to the
 // agent's chain via the exposed function create_my_entry
 
-#[derive(Serialize, Deserialize, Debug, DefaultJson,Clone)]
+#[derive(Serialize, Deserialize, Debug, DefaultJson, Clone)]
 pub struct Simple {
     content: String,
 }
@@ -59,25 +28,25 @@ pub fn handle_create_anchor() -> ZomeApiResult<Address> {
 
 pub fn handle_create_my_link(base: Address,target : String) -> ZomeApiResult<()> {
     let address = hdk::commit_entry(&simple_entry(target))?;
-    hdk::link_entries(&base, &HashString::from(address), "authored_simple_posts", "tag")?;
+    hdk::link_entries(&base, &Address::from(address), "authored_simple_posts", "tag")?;
     Ok(())
 }
 
 pub fn handle_create_my_link_with_tag(base: Address,target : String, tag : String) -> ZomeApiResult<()> {
     let address = hdk::commit_entry(&simple_entry(target))?;
-    hdk::link_entries(&base, &HashString::from(address), "authored_simple_posts", &tag)?;
+    hdk::link_entries(&base, &Address::from(address), "authored_simple_posts", &tag)?;
     Ok(())
 }
 
 pub fn handle_delete_my_link(base: Address,target : String) -> ZomeApiResult<()> {
     let address = hdk::entry_address(&simple_entry(target))?;
-    hdk::remove_link(&base, &HashString::from(address), "authored_simple_posts","tag")?;
+    hdk::remove_link(&base, &Address::from(address), "authored_simple_posts","tag")?;
     Ok(())
 }
 
 pub fn handle_delete_my_link_with_tag(base: Address,target : String,tag:String) -> ZomeApiResult<()> {
     let address = hdk::entry_address(&simple_entry(target))?;
-    hdk::remove_link(&base, &HashString::from(address), "authored_simple_posts",&tag)?;
+    hdk::remove_link(&base, &Address::from(address), "authored_simple_posts",&tag)?;
     Ok(())
 }
 

diff --git a/app_spec/zomes/summer/code/Cargo.toml b/app_spec/zomes/summer/code/Cargo.toml
@@ -2,11 +2,12 @@
 name = "summer"
 version = "0.0.34-alpha1"
 authors = ["Holochain Core Dev Team <devcore@holochain.org>"]
+edition = "2018"
 
 [dependencies]
+hdk = { path = "../../../../crates/hdk" }
 serde = "=1.0.89"
 serde_json = { version = "=1.0.39", features = ["preserve_order"] }
-hdk = { path = "../../../../crates/hdk" }
 serde_derive = "=1.0.89"
 boolinator = "=2.4.0"
 

diff --git a/app_spec/zomes/summer/code/src/lib.rs b/app_spec/zomes/summer/code/src/lib.rs
@@ -1,13 +1,4 @@
-#[macro_use]
-extern crate hdk;
-extern crate serde;
-#[macro_use]
-extern crate serde_derive;
-extern crate serde_json;
-extern crate boolinator;
-use hdk::holochain_json_api::error::JsonError;
-use hdk::holochain_json_api::json::JsonString;
-use hdk::error::ZomeApiResult;
+use hdk::prelude::*;
 
 fn handle_sum(num1: u32, num2: u32) -> ZomeApiResult<u32> {
     Ok(num1 + num2)
@@ -41,7 +32,7 @@ define_zome! {
 #[cfg(test)]
 mod tests {
 
-    use handle_sum;
+    use super::handle_sum;
 
     #[test]
     pub fn handle_sum_test() {

diff --git a/app_spec_proc_macro/zomes/blog/code/Cargo.toml b/app_spec_proc_macro/zomes/blog/code/Cargo.toml
@@ -2,6 +2,7 @@
 name = "blog"
 version = "0.0.34-alpha1"
 authors = ["Holochain Core Dev Team <devcore@holochain.org>"]
+edition = "2018"
 
 [dependencies]
 serde = "=1.0.89"

diff --git a/app_spec_proc_macro/zomes/blog/code/src/blog.rs b/app_spec_proc_macro/zomes/blog/code/src/blog.rs
@@ -1,33 +1,16 @@
+use hdk::prelude::*;
 use hdk::{
-    self,
-    error::{ZomeApiError, ZomeApiResult},
+    serde_json::json,
     holochain_core_types::{
         dna::capabilities::CapabilityRequest,
-        entry::{cap_entries::CapabilityType, entry_type::EntryType, Entry},
-        error::HolochainError,
+        entry::{cap_entries::CapabilityType},
         signature::{Provenance, Signature},
-        link::LinkMatch,
     },
-    holochain_persistence_api::{
-        cas::content::Address,
-    },
-    holochain_json_api::{
-        error::JsonError,
-        json::JsonString,
-    },
-    holochain_wasm_utils::api_serialization::{
-        commit_entry::CommitEntryOptions,
-        get_entry::{
-            EntryHistory, GetEntryOptions, GetEntryResult, GetEntryResultType, StatusRequestKind,
-        },
-        get_links::{GetLinksOptions, GetLinksResult},
-        QueryArgsOptions, QueryResult,
-    },
-    AGENT_ADDRESS, AGENT_ID_STR, CAPABILITY_REQ, DNA_ADDRESS, DNA_NAME, PROPERTIES, PUBLIC_TOKEN,
+    AGENT_ADDRESS, AGENT_ID_STR, CAPABILITY_REQ, DNA_ADDRESS, DNA_NAME, PROPERTIES, PUBLIC_TOKEN
 };
 
-use memo::Memo;
-use post::Post;
+use crate::memo::Memo;
+use crate::post::Post;
 use std::{
     collections::BTreeMap,
     convert::{TryFrom, TryInto},
@@ -65,10 +48,6 @@ pub fn handle_show_env() -> ZomeApiResult<Env> {
     })
 }
 
-pub fn handle_get_test_properties() -> ZomeApiResult<JsonString> {
-    hdk::property("test_property")
-}
-
 pub fn handle_get_sources(address: Address) -> ZomeApiResult<Vec<Address>> {
     if let GetEntryResultType::Single(result) = hdk::get_entry_result(
         &address,
@@ -563,9 +542,9 @@ pub fn handle_get_post_bridged(post_address: Address) -> ZomeApiResult<Option<En
 #[cfg(test)]
 pub mod tests {
 
-    use blog::{check_sum_args, post_entry, SumInput};
+    use crate::blog::{check_sum_args, post_entry, SumInput};
     use hdk::holochain_core_types::entry::{entry_type::AppEntryType, AppEntryValue, Entry};
-    use post::Post;
+    use crate::post::Post;
 
     #[test]
     fn check_sum_args_test() {